1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 config MIPS 2 config MIPS
3 bool 3 bool
4 default y 4 default y
5 select ARCH_32BIT_OFF_T if !64BIT 5 select ARCH_32BIT_OFF_T if !64BIT
6 select ARCH_BINFMT_ELF_STATE if MIPS_F 6 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
7 select ARCH_HAS_CPU_CACHE_ALIASING 7 select ARCH_HAS_CPU_CACHE_ALIASING
8 select ARCH_HAS_CPU_FINALIZE_INIT 8 select ARCH_HAS_CPU_FINALIZE_INIT
9 select ARCH_HAS_CURRENT_STACK_POINTER 9 select ARCH_HAS_CURRENT_STACK_POINTER if !CC_IS_CLANG || CLANG_VERSION >= 140000
10 select ARCH_HAS_DEBUG_VIRTUAL if !64BI 10 select ARCH_HAS_DEBUG_VIRTUAL if !64BIT
11 select ARCH_HAS_DMA_OPS if MACH_JAZZ <<
12 select ARCH_HAS_FORTIFY_SOURCE 11 select ARCH_HAS_FORTIFY_SOURCE
13 select ARCH_HAS_KCOV 12 select ARCH_HAS_KCOV
14 select ARCH_HAS_NON_OVERLAPPING_ADDRES 13 select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE if !EVA
15 select ARCH_HAS_PTE_SPECIAL if !(32BIT 14 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
16 select ARCH_HAS_STRNCPY_FROM_USER 15 select ARCH_HAS_STRNCPY_FROM_USER
17 select ARCH_HAS_STRNLEN_USER 16 select ARCH_HAS_STRNLEN_USER
18 select ARCH_HAS_TICK_BROADCAST if GENE 17 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
19 select ARCH_HAS_UBSAN 18 select ARCH_HAS_UBSAN
20 select ARCH_HAS_GCOV_PROFILE_ALL 19 select ARCH_HAS_GCOV_PROFILE_ALL
21 select ARCH_KEEP_MEMBLOCK 20 select ARCH_KEEP_MEMBLOCK
22 select ARCH_USE_BUILTIN_BSWAP 21 select ARCH_USE_BUILTIN_BSWAP
23 select ARCH_USE_CMPXCHG_LOCKREF if 64B 22 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
24 select ARCH_USE_MEMTEST 23 select ARCH_USE_MEMTEST
25 select ARCH_USE_QUEUED_RWLOCKS 24 select ARCH_USE_QUEUED_RWLOCKS
26 select ARCH_USE_QUEUED_SPINLOCKS 25 select ARCH_USE_QUEUED_SPINLOCKS
27 select ARCH_SUPPORTS_HUGETLBFS if CPU_ 26 select ARCH_SUPPORTS_HUGETLBFS if CPU_SUPPORTS_HUGEPAGES
28 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_ 27 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
29 select ARCH_WANT_IPC_PARSE_VERSION 28 select ARCH_WANT_IPC_PARSE_VERSION
30 select ARCH_WANT_LD_ORPHAN_WARN 29 select ARCH_WANT_LD_ORPHAN_WARN
31 select BUILDTIME_TABLE_SORT 30 select BUILDTIME_TABLE_SORT
32 select CLONE_BACKWARDS 31 select CLONE_BACKWARDS
33 select CPU_NO_EFFICIENT_FFS if (TARGET 32 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
34 select CPU_PM if CPU_IDLE || SUSPEND 33 select CPU_PM if CPU_IDLE || SUSPEND
35 select GENERIC_ATOMIC64 if !64BIT 34 select GENERIC_ATOMIC64 if !64BIT
36 select GENERIC_CMOS_UPDATE 35 select GENERIC_CMOS_UPDATE
37 select GENERIC_CPU_AUTOPROBE 36 select GENERIC_CPU_AUTOPROBE
38 select GENERIC_GETTIMEOFDAY 37 select GENERIC_GETTIMEOFDAY
39 select GENERIC_IOMAP 38 select GENERIC_IOMAP
40 select GENERIC_IRQ_PROBE 39 select GENERIC_IRQ_PROBE
41 select GENERIC_IRQ_SHOW 40 select GENERIC_IRQ_SHOW
42 select GENERIC_ISA_DMA if EISA 41 select GENERIC_ISA_DMA if EISA
43 select GENERIC_LIB_ASHLDI3 42 select GENERIC_LIB_ASHLDI3
44 select GENERIC_LIB_ASHRDI3 43 select GENERIC_LIB_ASHRDI3
45 select GENERIC_LIB_CMPDI2 44 select GENERIC_LIB_CMPDI2
46 select GENERIC_LIB_LSHRDI3 45 select GENERIC_LIB_LSHRDI3
47 select GENERIC_LIB_UCMPDI2 46 select GENERIC_LIB_UCMPDI2
48 select GENERIC_SCHED_CLOCK if !CAVIUM_ 47 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
49 select GENERIC_SMP_IDLE_THREAD 48 select GENERIC_SMP_IDLE_THREAD
50 select GENERIC_IDLE_POLL_SETUP 49 select GENERIC_IDLE_POLL_SETUP
51 select GENERIC_TIME_VSYSCALL 50 select GENERIC_TIME_VSYSCALL
52 select GUP_GET_PXX_LOW_HIGH if CPU_MIP 51 select GUP_GET_PXX_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
53 select HAS_IOPORT if !NO_IOPORT_MAP || 52 select HAS_IOPORT if !NO_IOPORT_MAP || ISA
54 select HAVE_ARCH_COMPILER_H 53 select HAVE_ARCH_COMPILER_H
55 select HAVE_ARCH_JUMP_LABEL 54 select HAVE_ARCH_JUMP_LABEL
56 select HAVE_ARCH_KGDB if MIPS_FP_SUPPO 55 select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT
57 select HAVE_ARCH_MMAP_RND_BITS if MMU 56 select HAVE_ARCH_MMAP_RND_BITS if MMU
58 select HAVE_ARCH_MMAP_RND_COMPAT_BITS 57 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
59 select HAVE_ARCH_SECCOMP_FILTER 58 select HAVE_ARCH_SECCOMP_FILTER
60 select HAVE_ARCH_TRACEHOOK 59 select HAVE_ARCH_TRACEHOOK
61 select HAVE_ARCH_TRANSPARENT_HUGEPAGE 60 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
62 select HAVE_ASM_MODVERSIONS 61 select HAVE_ASM_MODVERSIONS
63 select HAVE_CONTEXT_TRACKING_USER 62 select HAVE_CONTEXT_TRACKING_USER
64 select HAVE_TIF_NOHZ 63 select HAVE_TIF_NOHZ
65 select HAVE_C_RECORDMCOUNT 64 select HAVE_C_RECORDMCOUNT
66 select HAVE_DEBUG_KMEMLEAK 65 select HAVE_DEBUG_KMEMLEAK
67 select HAVE_DEBUG_STACKOVERFLOW 66 select HAVE_DEBUG_STACKOVERFLOW
68 select HAVE_DMA_CONTIGUOUS 67 select HAVE_DMA_CONTIGUOUS
69 select HAVE_DYNAMIC_FTRACE 68 select HAVE_DYNAMIC_FTRACE
70 select HAVE_EBPF_JIT if !CPU_MICROMIPS 69 select HAVE_EBPF_JIT if !CPU_MICROMIPS
71 select HAVE_EXIT_THREAD 70 select HAVE_EXIT_THREAD
72 select HAVE_GUP_FAST 71 select HAVE_GUP_FAST
73 select HAVE_FTRACE_MCOUNT_RECORD 72 select HAVE_FTRACE_MCOUNT_RECORD
74 select HAVE_FUNCTION_GRAPH_TRACER 73 select HAVE_FUNCTION_GRAPH_TRACER
75 select HAVE_FUNCTION_TRACER 74 select HAVE_FUNCTION_TRACER
76 select HAVE_GCC_PLUGINS 75 select HAVE_GCC_PLUGINS
77 select HAVE_GENERIC_VDSO 76 select HAVE_GENERIC_VDSO
78 select HAVE_IOREMAP_PROT 77 select HAVE_IOREMAP_PROT
79 select HAVE_IRQ_EXIT_ON_IRQ_STACK 78 select HAVE_IRQ_EXIT_ON_IRQ_STACK
80 select HAVE_IRQ_TIME_ACCOUNTING 79 select HAVE_IRQ_TIME_ACCOUNTING
81 select HAVE_KPROBES 80 select HAVE_KPROBES
82 select HAVE_KRETPROBES 81 select HAVE_KRETPROBES
83 select HAVE_LD_DEAD_CODE_DATA_ELIMINAT 82 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
84 select HAVE_MOD_ARCH_SPECIFIC 83 select HAVE_MOD_ARCH_SPECIFIC
85 select HAVE_NMI 84 select HAVE_NMI
86 select HAVE_PAGE_SIZE_4KB if !CPU_LOON 85 select HAVE_PAGE_SIZE_4KB if !CPU_LOONGSON2EF && !CPU_LOONGSON64
87 select HAVE_PAGE_SIZE_16KB if !CPU_R30 86 select HAVE_PAGE_SIZE_16KB if !CPU_R3000
88 select HAVE_PAGE_SIZE_64KB if !CPU_R30 87 select HAVE_PAGE_SIZE_64KB if !CPU_R3000
89 select HAVE_PERF_EVENTS 88 select HAVE_PERF_EVENTS
90 select HAVE_PERF_REGS 89 select HAVE_PERF_REGS
91 select HAVE_PERF_USER_STACK_DUMP 90 select HAVE_PERF_USER_STACK_DUMP
92 select HAVE_REGS_AND_STACK_ACCESS_API 91 select HAVE_REGS_AND_STACK_ACCESS_API
93 select HAVE_RSEQ 92 select HAVE_RSEQ
94 select HAVE_SPARSE_SYSCALL_NR 93 select HAVE_SPARSE_SYSCALL_NR
95 select HAVE_STACKPROTECTOR 94 select HAVE_STACKPROTECTOR
96 select HAVE_SYSCALL_TRACEPOINTS 95 select HAVE_SYSCALL_TRACEPOINTS
97 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 96 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
98 select IRQ_FORCED_THREADING 97 select IRQ_FORCED_THREADING
99 select ISA if EISA 98 select ISA if EISA
100 select LOCK_MM_AND_FIND_VMA 99 select LOCK_MM_AND_FIND_VMA
101 select MODULES_USE_ELF_REL if MODULES 100 select MODULES_USE_ELF_REL if MODULES
102 select MODULES_USE_ELF_RELA if MODULES 101 select MODULES_USE_ELF_RELA if MODULES && 64BIT
103 select PERF_USE_VMALLOC 102 select PERF_USE_VMALLOC
104 select PCI_MSI_ARCH_FALLBACKS if PCI_M 103 select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
105 select RTC_LIB 104 select RTC_LIB
106 select SYSCTL_EXCEPTION_TRACE 105 select SYSCTL_EXCEPTION_TRACE
107 select TRACE_IRQFLAGS_SUPPORT 106 select TRACE_IRQFLAGS_SUPPORT
108 select ARCH_HAS_ELFCORE_COMPAT 107 select ARCH_HAS_ELFCORE_COMPAT
109 select HAVE_ARCH_KCSAN if 64BIT 108 select HAVE_ARCH_KCSAN if 64BIT
110 109
111 config MIPS_FIXUP_BIGPHYS_ADDR 110 config MIPS_FIXUP_BIGPHYS_ADDR
112 bool 111 bool
113 112
114 config MIPS_GENERIC 113 config MIPS_GENERIC
115 bool 114 bool
116 115
117 config MACH_GENERIC_CORE 116 config MACH_GENERIC_CORE
118 bool 117 bool
119 118
120 config MACH_INGENIC 119 config MACH_INGENIC
121 bool 120 bool
122 select SYS_SUPPORTS_32BIT_KERNEL 121 select SYS_SUPPORTS_32BIT_KERNEL
123 select SYS_SUPPORTS_LITTLE_ENDIAN 122 select SYS_SUPPORTS_LITTLE_ENDIAN
124 select SYS_SUPPORTS_ZBOOT 123 select SYS_SUPPORTS_ZBOOT
125 select DMA_NONCOHERENT 124 select DMA_NONCOHERENT
126 select IRQ_MIPS_CPU 125 select IRQ_MIPS_CPU
127 select PINCTRL 126 select PINCTRL
128 select GPIOLIB 127 select GPIOLIB
129 select COMMON_CLK 128 select COMMON_CLK
130 select GENERIC_IRQ_CHIP 129 select GENERIC_IRQ_CHIP
131 select BUILTIN_DTB if MIPS_NO_APPENDED 130 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
132 select USE_OF 131 select USE_OF
133 select CPU_SUPPORTS_CPUFREQ 132 select CPU_SUPPORTS_CPUFREQ
134 select MIPS_EXTERNAL_TIMER 133 select MIPS_EXTERNAL_TIMER
135 134
136 menu "Machine selection" 135 menu "Machine selection"
137 136
138 choice 137 choice
139 prompt "System type" 138 prompt "System type"
140 default MIPS_GENERIC_KERNEL 139 default MIPS_GENERIC_KERNEL
141 140
142 config MIPS_GENERIC_KERNEL 141 config MIPS_GENERIC_KERNEL
143 bool "Generic board-agnostic MIPS kern 142 bool "Generic board-agnostic MIPS kernel"
144 select MIPS_GENERIC 143 select MIPS_GENERIC
145 select BOOT_RAW 144 select BOOT_RAW
146 select BUILTIN_DTB 145 select BUILTIN_DTB
147 select CEVT_R4K 146 select CEVT_R4K
148 select CLKSRC_MIPS_GIC 147 select CLKSRC_MIPS_GIC
149 select COMMON_CLK 148 select COMMON_CLK
150 select CPU_MIPSR2_IRQ_EI 149 select CPU_MIPSR2_IRQ_EI
151 select CPU_MIPSR2_IRQ_VI 150 select CPU_MIPSR2_IRQ_VI
152 select CSRC_R4K 151 select CSRC_R4K
153 select DMA_NONCOHERENT 152 select DMA_NONCOHERENT
154 select HAVE_PCI 153 select HAVE_PCI
155 select IRQ_MIPS_CPU 154 select IRQ_MIPS_CPU
156 select MACH_GENERIC_CORE 155 select MACH_GENERIC_CORE
157 select MIPS_AUTO_PFN_OFFSET 156 select MIPS_AUTO_PFN_OFFSET
158 select MIPS_CPU_SCACHE 157 select MIPS_CPU_SCACHE
159 select MIPS_GIC 158 select MIPS_GIC
160 select MIPS_L1_CACHE_SHIFT_7 159 select MIPS_L1_CACHE_SHIFT_7
161 select NO_EXCEPT_FILL 160 select NO_EXCEPT_FILL
162 select PCI_DRIVERS_GENERIC 161 select PCI_DRIVERS_GENERIC
163 select SMP_UP if SMP 162 select SMP_UP if SMP
164 select SWAP_IO_SPACE 163 select SWAP_IO_SPACE
165 select SYS_HAS_CPU_MIPS32_R1 164 select SYS_HAS_CPU_MIPS32_R1
166 select SYS_HAS_CPU_MIPS32_R2 165 select SYS_HAS_CPU_MIPS32_R2
167 select SYS_HAS_CPU_MIPS32_R5 166 select SYS_HAS_CPU_MIPS32_R5
168 select SYS_HAS_CPU_MIPS32_R6 167 select SYS_HAS_CPU_MIPS32_R6
169 select SYS_HAS_CPU_MIPS64_R1 168 select SYS_HAS_CPU_MIPS64_R1
170 select SYS_HAS_CPU_MIPS64_R2 169 select SYS_HAS_CPU_MIPS64_R2
171 select SYS_HAS_CPU_MIPS64_R5 170 select SYS_HAS_CPU_MIPS64_R5
172 select SYS_HAS_CPU_MIPS64_R6 171 select SYS_HAS_CPU_MIPS64_R6
173 select SYS_SUPPORTS_32BIT_KERNEL 172 select SYS_SUPPORTS_32BIT_KERNEL
174 select SYS_SUPPORTS_64BIT_KERNEL 173 select SYS_SUPPORTS_64BIT_KERNEL
175 select SYS_SUPPORTS_BIG_ENDIAN 174 select SYS_SUPPORTS_BIG_ENDIAN
176 select SYS_SUPPORTS_HIGHMEM 175 select SYS_SUPPORTS_HIGHMEM
177 select SYS_SUPPORTS_LITTLE_ENDIAN 176 select SYS_SUPPORTS_LITTLE_ENDIAN
178 select SYS_SUPPORTS_MICROMIPS 177 select SYS_SUPPORTS_MICROMIPS
179 select SYS_SUPPORTS_MIPS16 178 select SYS_SUPPORTS_MIPS16
180 select SYS_SUPPORTS_MIPS_CPS 179 select SYS_SUPPORTS_MIPS_CPS
181 select SYS_SUPPORTS_MULTITHREADING 180 select SYS_SUPPORTS_MULTITHREADING
182 select SYS_SUPPORTS_RELOCATABLE 181 select SYS_SUPPORTS_RELOCATABLE
183 select SYS_SUPPORTS_SMARTMIPS 182 select SYS_SUPPORTS_SMARTMIPS
184 select SYS_SUPPORTS_ZBOOT 183 select SYS_SUPPORTS_ZBOOT
185 select UHI_BOOT 184 select UHI_BOOT
186 select USB_EHCI_BIG_ENDIAN_DESC if CPU 185 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
187 select USB_EHCI_BIG_ENDIAN_MMIO if CPU 186 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
188 select USB_OHCI_BIG_ENDIAN_DESC if CPU 187 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
189 select USB_OHCI_BIG_ENDIAN_MMIO if CPU 188 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
190 select USB_UHCI_BIG_ENDIAN_DESC if CPU 189 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
191 select USB_UHCI_BIG_ENDIAN_MMIO if CPU 190 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
192 select USE_OF 191 select USE_OF
193 help 192 help
194 Select this to build a kernel which 193 Select this to build a kernel which aims to support multiple boards,
195 generally using a flattened device t 194 generally using a flattened device tree passed from the bootloader
196 using the boot protocol defined in t 195 using the boot protocol defined in the UHI (Unified Hosting
197 Interface) specification. 196 Interface) specification.
198 197
199 config MIPS_ALCHEMY 198 config MIPS_ALCHEMY
200 bool "Alchemy processor based machines 199 bool "Alchemy processor based machines"
201 select PHYS_ADDR_T_64BIT 200 select PHYS_ADDR_T_64BIT
202 select CEVT_R4K 201 select CEVT_R4K
203 select CSRC_R4K 202 select CSRC_R4K
204 select IRQ_MIPS_CPU 203 select IRQ_MIPS_CPU
205 select DMA_NONCOHERENT # Au10 204 select DMA_NONCOHERENT # Au1000,1500,1100 aren't, rest is
206 select MIPS_FIXUP_BIGPHYS_ADDR if PCI 205 select MIPS_FIXUP_BIGPHYS_ADDR if PCI
207 select SYS_HAS_CPU_MIPS32_R1 206 select SYS_HAS_CPU_MIPS32_R1
208 select SYS_SUPPORTS_32BIT_KERNEL 207 select SYS_SUPPORTS_32BIT_KERNEL
209 select SYS_SUPPORTS_APM_EMULATION 208 select SYS_SUPPORTS_APM_EMULATION
210 select GPIOLIB 209 select GPIOLIB
211 select SYS_SUPPORTS_ZBOOT 210 select SYS_SUPPORTS_ZBOOT
212 select COMMON_CLK 211 select COMMON_CLK
213 212
214 config ATH25 213 config ATH25
215 bool "Atheros AR231x/AR531x SoC suppor 214 bool "Atheros AR231x/AR531x SoC support"
216 select CEVT_R4K 215 select CEVT_R4K
217 select CSRC_R4K 216 select CSRC_R4K
218 select DMA_NONCOHERENT 217 select DMA_NONCOHERENT
219 select IRQ_MIPS_CPU 218 select IRQ_MIPS_CPU
220 select IRQ_DOMAIN 219 select IRQ_DOMAIN
221 select SYS_HAS_CPU_MIPS32_R1 220 select SYS_HAS_CPU_MIPS32_R1
222 select SYS_SUPPORTS_BIG_ENDIAN 221 select SYS_SUPPORTS_BIG_ENDIAN
223 select SYS_SUPPORTS_32BIT_KERNEL 222 select SYS_SUPPORTS_32BIT_KERNEL
224 select SYS_HAS_EARLY_PRINTK 223 select SYS_HAS_EARLY_PRINTK
225 help 224 help
226 Support for Atheros AR231x and Ather 225 Support for Atheros AR231x and Atheros AR531x based boards
227 226
228 config ATH79 227 config ATH79
229 bool "Atheros AR71XX/AR724X/AR913X bas 228 bool "Atheros AR71XX/AR724X/AR913X based boards"
230 select ARCH_HAS_RESET_CONTROLLER 229 select ARCH_HAS_RESET_CONTROLLER
231 select BOOT_RAW 230 select BOOT_RAW
232 select CEVT_R4K 231 select CEVT_R4K
233 select CSRC_R4K 232 select CSRC_R4K
234 select DMA_NONCOHERENT 233 select DMA_NONCOHERENT
235 select GPIOLIB 234 select GPIOLIB
236 select PINCTRL 235 select PINCTRL
237 select COMMON_CLK 236 select COMMON_CLK
238 select IRQ_MIPS_CPU 237 select IRQ_MIPS_CPU
239 select SYS_HAS_CPU_MIPS32_R2 238 select SYS_HAS_CPU_MIPS32_R2
240 select SYS_HAS_EARLY_PRINTK 239 select SYS_HAS_EARLY_PRINTK
241 select SYS_SUPPORTS_32BIT_KERNEL 240 select SYS_SUPPORTS_32BIT_KERNEL
242 select SYS_SUPPORTS_BIG_ENDIAN 241 select SYS_SUPPORTS_BIG_ENDIAN
243 select SYS_SUPPORTS_MIPS16 242 select SYS_SUPPORTS_MIPS16
244 select SYS_SUPPORTS_ZBOOT_UART_PROM 243 select SYS_SUPPORTS_ZBOOT_UART_PROM
245 select USE_OF 244 select USE_OF
246 select USB_EHCI_ROOT_HUB_TT if USB_EHC 245 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
247 help 246 help
248 Support for the Atheros AR71XX/AR724 247 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
249 248
250 config BMIPS_GENERIC 249 config BMIPS_GENERIC
251 bool "Broadcom Generic BMIPS kernel" 250 bool "Broadcom Generic BMIPS kernel"
252 select ARCH_HAS_RESET_CONTROLLER 251 select ARCH_HAS_RESET_CONTROLLER
253 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 252 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
254 select BOOT_RAW 253 select BOOT_RAW
255 select NO_EXCEPT_FILL 254 select NO_EXCEPT_FILL
256 select USE_OF 255 select USE_OF
257 select CEVT_R4K 256 select CEVT_R4K
258 select CSRC_R4K 257 select CSRC_R4K
259 select SYNC_R4K 258 select SYNC_R4K
260 select COMMON_CLK 259 select COMMON_CLK
261 select BCM6345_L1_IRQ 260 select BCM6345_L1_IRQ
262 select BCM7038_L1_IRQ 261 select BCM7038_L1_IRQ
263 select BCM7120_L2_IRQ 262 select BCM7120_L2_IRQ
264 select BRCMSTB_L2_IRQ 263 select BRCMSTB_L2_IRQ
265 select IRQ_MIPS_CPU 264 select IRQ_MIPS_CPU
266 select DMA_NONCOHERENT 265 select DMA_NONCOHERENT
267 select SYS_SUPPORTS_32BIT_KERNEL 266 select SYS_SUPPORTS_32BIT_KERNEL
268 select SYS_SUPPORTS_LITTLE_ENDIAN 267 select SYS_SUPPORTS_LITTLE_ENDIAN
269 select SYS_SUPPORTS_BIG_ENDIAN 268 select SYS_SUPPORTS_BIG_ENDIAN
270 select SYS_SUPPORTS_HIGHMEM 269 select SYS_SUPPORTS_HIGHMEM
271 select SYS_HAS_CPU_BMIPS32_3300 270 select SYS_HAS_CPU_BMIPS32_3300
272 select SYS_HAS_CPU_BMIPS4350 271 select SYS_HAS_CPU_BMIPS4350
273 select SYS_HAS_CPU_BMIPS4380 272 select SYS_HAS_CPU_BMIPS4380
274 select SYS_HAS_CPU_BMIPS5000 273 select SYS_HAS_CPU_BMIPS5000
275 select SWAP_IO_SPACE 274 select SWAP_IO_SPACE
276 select USB_EHCI_BIG_ENDIAN_DESC if CPU 275 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
277 select USB_EHCI_BIG_ENDIAN_MMIO if CPU 276 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
278 select USB_OHCI_BIG_ENDIAN_DESC if CPU 277 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
279 select USB_OHCI_BIG_ENDIAN_MMIO if CPU 278 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
280 select HARDIRQS_SW_RESEND 279 select HARDIRQS_SW_RESEND
281 select HAVE_PCI 280 select HAVE_PCI
282 select PCI_DRIVERS_GENERIC 281 select PCI_DRIVERS_GENERIC
283 select FW_CFE 282 select FW_CFE
284 help 283 help
285 Build a generic DT-based kernel imag 284 Build a generic DT-based kernel image that boots on select
286 BCM33xx cable modem chips, BCM63xx D 285 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
287 box chips. Note that CONFIG_CPU_BIG 286 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
288 must be set appropriately for your b 287 must be set appropriately for your board.
289 288
290 config BCM47XX 289 config BCM47XX
291 bool "Broadcom BCM47XX based boards" 290 bool "Broadcom BCM47XX based boards"
292 select BOOT_RAW 291 select BOOT_RAW
293 select CEVT_R4K 292 select CEVT_R4K
294 select CSRC_R4K 293 select CSRC_R4K
295 select DMA_NONCOHERENT 294 select DMA_NONCOHERENT
296 select HAVE_PCI 295 select HAVE_PCI
297 select IRQ_MIPS_CPU 296 select IRQ_MIPS_CPU
298 select SYS_HAS_CPU_MIPS32_R1 297 select SYS_HAS_CPU_MIPS32_R1
299 select NO_EXCEPT_FILL 298 select NO_EXCEPT_FILL
300 select SYS_SUPPORTS_32BIT_KERNEL 299 select SYS_SUPPORTS_32BIT_KERNEL
301 select SYS_SUPPORTS_LITTLE_ENDIAN 300 select SYS_SUPPORTS_LITTLE_ENDIAN
302 select SYS_SUPPORTS_MIPS16 301 select SYS_SUPPORTS_MIPS16
303 select SYS_SUPPORTS_ZBOOT 302 select SYS_SUPPORTS_ZBOOT
304 select SYS_HAS_EARLY_PRINTK 303 select SYS_HAS_EARLY_PRINTK
305 select USE_GENERIC_EARLY_PRINTK_8250 304 select USE_GENERIC_EARLY_PRINTK_8250
306 select GPIOLIB 305 select GPIOLIB
307 select LEDS_GPIO_REGISTER 306 select LEDS_GPIO_REGISTER
308 select BCM47XX_NVRAM 307 select BCM47XX_NVRAM
309 select BCM47XX_SPROM 308 select BCM47XX_SPROM
310 select BCM47XX_SSB if !BCM47XX_BCMA 309 select BCM47XX_SSB if !BCM47XX_BCMA
311 help 310 help
312 Support for BCM47XX based boards 311 Support for BCM47XX based boards
313 312
314 config BCM63XX 313 config BCM63XX
315 bool "Broadcom BCM63XX based boards" 314 bool "Broadcom BCM63XX based boards"
316 select BOOT_RAW 315 select BOOT_RAW
317 select CEVT_R4K 316 select CEVT_R4K
318 select CSRC_R4K 317 select CSRC_R4K
319 select SYNC_R4K 318 select SYNC_R4K
320 select DMA_NONCOHERENT 319 select DMA_NONCOHERENT
321 select IRQ_MIPS_CPU 320 select IRQ_MIPS_CPU
322 select SYS_SUPPORTS_32BIT_KERNEL 321 select SYS_SUPPORTS_32BIT_KERNEL
323 select SYS_SUPPORTS_BIG_ENDIAN 322 select SYS_SUPPORTS_BIG_ENDIAN
324 select SYS_HAS_EARLY_PRINTK 323 select SYS_HAS_EARLY_PRINTK
325 select SYS_HAS_CPU_BMIPS32_3300 324 select SYS_HAS_CPU_BMIPS32_3300
326 select SYS_HAS_CPU_BMIPS4350 325 select SYS_HAS_CPU_BMIPS4350
327 select SYS_HAS_CPU_BMIPS4380 326 select SYS_HAS_CPU_BMIPS4380
328 select SWAP_IO_SPACE 327 select SWAP_IO_SPACE
329 select GPIOLIB 328 select GPIOLIB
330 select MIPS_L1_CACHE_SHIFT_4 329 select MIPS_L1_CACHE_SHIFT_4
331 select HAVE_LEGACY_CLK 330 select HAVE_LEGACY_CLK
332 help 331 help
333 Support for BCM63XX based boards 332 Support for BCM63XX based boards
334 333
335 config MIPS_COBALT 334 config MIPS_COBALT
336 bool "Cobalt Server" 335 bool "Cobalt Server"
337 select CEVT_R4K 336 select CEVT_R4K
338 select CSRC_R4K 337 select CSRC_R4K
339 select CEVT_GT641XX 338 select CEVT_GT641XX
340 select DMA_NONCOHERENT 339 select DMA_NONCOHERENT
341 select FORCE_PCI 340 select FORCE_PCI
342 select I8253 341 select I8253
343 select I8259 342 select I8259
344 select IRQ_MIPS_CPU 343 select IRQ_MIPS_CPU
345 select IRQ_GT641XX 344 select IRQ_GT641XX
346 select PCI_GT64XXX_PCI0 345 select PCI_GT64XXX_PCI0
347 select SYS_HAS_CPU_NEVADA 346 select SYS_HAS_CPU_NEVADA
348 select SYS_HAS_EARLY_PRINTK 347 select SYS_HAS_EARLY_PRINTK
349 select SYS_SUPPORTS_32BIT_KERNEL 348 select SYS_SUPPORTS_32BIT_KERNEL
350 select SYS_SUPPORTS_64BIT_KERNEL 349 select SYS_SUPPORTS_64BIT_KERNEL
351 select SYS_SUPPORTS_LITTLE_ENDIAN 350 select SYS_SUPPORTS_LITTLE_ENDIAN
352 select USE_GENERIC_EARLY_PRINTK_8250 351 select USE_GENERIC_EARLY_PRINTK_8250
353 352
354 config MACH_DECSTATION 353 config MACH_DECSTATION
355 bool "DECstations" 354 bool "DECstations"
356 select BOOT_ELF32 355 select BOOT_ELF32
357 select CEVT_DS1287 356 select CEVT_DS1287
358 select CEVT_R4K if CPU_R4X00 357 select CEVT_R4K if CPU_R4X00
359 select CSRC_IOASIC 358 select CSRC_IOASIC
360 select CSRC_R4K if CPU_R4X00 359 select CSRC_R4K if CPU_R4X00
361 select CPU_DADDI_WORKAROUNDS if 64BIT 360 select CPU_DADDI_WORKAROUNDS if 64BIT
362 select CPU_R4000_WORKAROUNDS if 64BIT 361 select CPU_R4000_WORKAROUNDS if 64BIT
363 select CPU_R4400_WORKAROUNDS if 64BIT 362 select CPU_R4400_WORKAROUNDS if 64BIT
364 select DMA_NONCOHERENT 363 select DMA_NONCOHERENT
365 select NO_IOPORT_MAP 364 select NO_IOPORT_MAP
366 select IRQ_MIPS_CPU 365 select IRQ_MIPS_CPU
367 select SYS_HAS_CPU_R3000 366 select SYS_HAS_CPU_R3000
368 select SYS_HAS_CPU_R4X00 367 select SYS_HAS_CPU_R4X00
369 select SYS_SUPPORTS_32BIT_KERNEL 368 select SYS_SUPPORTS_32BIT_KERNEL
370 select SYS_SUPPORTS_64BIT_KERNEL 369 select SYS_SUPPORTS_64BIT_KERNEL
371 select SYS_SUPPORTS_LITTLE_ENDIAN 370 select SYS_SUPPORTS_LITTLE_ENDIAN
372 select SYS_SUPPORTS_128HZ 371 select SYS_SUPPORTS_128HZ
373 select SYS_SUPPORTS_256HZ 372 select SYS_SUPPORTS_256HZ
374 select SYS_SUPPORTS_1024HZ 373 select SYS_SUPPORTS_1024HZ
375 select MIPS_L1_CACHE_SHIFT_4 374 select MIPS_L1_CACHE_SHIFT_4
376 help 375 help
377 This enables support for DEC's MIPS 376 This enables support for DEC's MIPS based workstations. For details
378 see the Linux/MIPS FAQ on <http://ww 377 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
379 DECstation porting pages on <http:// 378 DECstation porting pages on <http://decstation.unix-ag.org/>.
380 379
381 If you have one of the following DEC 380 If you have one of the following DECstation Models you definitely
382 want to choose R4xx0 for the CPU Typ 381 want to choose R4xx0 for the CPU Type:
383 382
384 DECstation 5000/50 383 DECstation 5000/50
385 DECstation 5000/150 384 DECstation 5000/150
386 DECstation 5000/260 385 DECstation 5000/260
387 DECsystem 5900/260 386 DECsystem 5900/260
388 387
389 otherwise choose R3000. 388 otherwise choose R3000.
390 389
391 config MACH_JAZZ 390 config MACH_JAZZ
392 bool "Jazz family of machines" 391 bool "Jazz family of machines"
393 select ARC_MEMORY 392 select ARC_MEMORY
394 select ARC_PROMLIB 393 select ARC_PROMLIB
395 select ARCH_MIGHT_HAVE_PC_PARPORT 394 select ARCH_MIGHT_HAVE_PC_PARPORT
396 select ARCH_MIGHT_HAVE_PC_SERIO 395 select ARCH_MIGHT_HAVE_PC_SERIO
>> 396 select DMA_OPS
397 select FW_ARC 397 select FW_ARC
398 select FW_ARC32 398 select FW_ARC32
399 select ARCH_MAY_HAVE_PC_FDC 399 select ARCH_MAY_HAVE_PC_FDC
400 select CEVT_R4K 400 select CEVT_R4K
401 select CSRC_R4K 401 select CSRC_R4K
402 select DEFAULT_SGI_PARTITION if CPU_BI 402 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
403 select GENERIC_ISA_DMA 403 select GENERIC_ISA_DMA
404 select HAVE_PCSPKR_PLATFORM 404 select HAVE_PCSPKR_PLATFORM
405 select IRQ_MIPS_CPU 405 select IRQ_MIPS_CPU
406 select I8253 406 select I8253
407 select I8259 407 select I8259
408 select ISA 408 select ISA
409 select SYS_HAS_CPU_R4X00 409 select SYS_HAS_CPU_R4X00
410 select SYS_SUPPORTS_32BIT_KERNEL 410 select SYS_SUPPORTS_32BIT_KERNEL
411 select SYS_SUPPORTS_64BIT_KERNEL 411 select SYS_SUPPORTS_64BIT_KERNEL
412 select SYS_SUPPORTS_100HZ 412 select SYS_SUPPORTS_100HZ
413 select SYS_SUPPORTS_LITTLE_ENDIAN 413 select SYS_SUPPORTS_LITTLE_ENDIAN
414 help 414 help
415 This a family of machines based on t 415 This a family of machines based on the MIPS R4030 chipset which was
416 used by several vendors to build RIS 416 used by several vendors to build RISC/os and Windows NT workstations.
417 Members include the Acer PICA, MIPS 417 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
418 Olivetti M700-10 workstations. 418 Olivetti M700-10 workstations.
419 419
420 config MACH_INGENIC_SOC 420 config MACH_INGENIC_SOC
421 bool "Ingenic SoC based machines" 421 bool "Ingenic SoC based machines"
422 select MIPS_GENERIC 422 select MIPS_GENERIC
423 select MACH_INGENIC 423 select MACH_INGENIC
424 select MACH_GENERIC_CORE 424 select MACH_GENERIC_CORE
425 select SYS_SUPPORTS_ZBOOT_UART16550 425 select SYS_SUPPORTS_ZBOOT_UART16550
426 select CPU_SUPPORTS_CPUFREQ 426 select CPU_SUPPORTS_CPUFREQ
427 select MIPS_EXTERNAL_TIMER 427 select MIPS_EXTERNAL_TIMER
428 428
429 config LANTIQ 429 config LANTIQ
430 bool "Lantiq based platforms" 430 bool "Lantiq based platforms"
431 select DMA_NONCOHERENT 431 select DMA_NONCOHERENT
432 select IRQ_MIPS_CPU 432 select IRQ_MIPS_CPU
433 select CEVT_R4K 433 select CEVT_R4K
434 select CSRC_R4K 434 select CSRC_R4K
435 select NO_EXCEPT_FILL 435 select NO_EXCEPT_FILL
436 select SYS_HAS_CPU_MIPS32_R1 436 select SYS_HAS_CPU_MIPS32_R1
437 select SYS_HAS_CPU_MIPS32_R2 437 select SYS_HAS_CPU_MIPS32_R2
438 select SYS_SUPPORTS_BIG_ENDIAN 438 select SYS_SUPPORTS_BIG_ENDIAN
439 select SYS_SUPPORTS_32BIT_KERNEL 439 select SYS_SUPPORTS_32BIT_KERNEL
440 select SYS_SUPPORTS_MIPS16 440 select SYS_SUPPORTS_MIPS16
441 select SYS_SUPPORTS_MULTITHREADING 441 select SYS_SUPPORTS_MULTITHREADING
442 select SYS_SUPPORTS_VPE_LOADER 442 select SYS_SUPPORTS_VPE_LOADER
443 select SYS_HAS_EARLY_PRINTK 443 select SYS_HAS_EARLY_PRINTK
444 select GPIOLIB 444 select GPIOLIB
445 select SWAP_IO_SPACE 445 select SWAP_IO_SPACE
446 select BOOT_RAW 446 select BOOT_RAW
447 select HAVE_LEGACY_CLK 447 select HAVE_LEGACY_CLK
448 select USE_OF 448 select USE_OF
449 select PINCTRL 449 select PINCTRL
450 select PINCTRL_LANTIQ 450 select PINCTRL_LANTIQ
451 select ARCH_HAS_RESET_CONTROLLER 451 select ARCH_HAS_RESET_CONTROLLER
452 select RESET_CONTROLLER 452 select RESET_CONTROLLER
453 453
454 config MACH_LOONGSON32 454 config MACH_LOONGSON32
455 bool "Loongson 32-bit family of machin 455 bool "Loongson 32-bit family of machines"
456 select SYS_SUPPORTS_ZBOOT 456 select SYS_SUPPORTS_ZBOOT
457 help 457 help
458 This enables support for the Loongso 458 This enables support for the Loongson-1 family of machines.
459 459
460 Loongson-1 is a family of 32-bit MIP 460 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
461 the Institute of Computing Technolog 461 the Institute of Computing Technology (ICT), Chinese Academy of
462 Sciences (CAS). 462 Sciences (CAS).
463 463
464 config MACH_LOONGSON2EF 464 config MACH_LOONGSON2EF
465 bool "Loongson-2E/F family of machines 465 bool "Loongson-2E/F family of machines"
466 select SYS_SUPPORTS_ZBOOT 466 select SYS_SUPPORTS_ZBOOT
467 help 467 help
468 This enables the support of early Lo 468 This enables the support of early Loongson-2E/F family of machines.
469 469
470 config MACH_LOONGSON64 470 config MACH_LOONGSON64
471 bool "Loongson 64-bit family of machin 471 bool "Loongson 64-bit family of machines"
472 select ARCH_DMA_DEFAULT_COHERENT 472 select ARCH_DMA_DEFAULT_COHERENT
473 select ARCH_SPARSEMEM_ENABLE 473 select ARCH_SPARSEMEM_ENABLE
474 select ARCH_MIGHT_HAVE_PC_PARPORT 474 select ARCH_MIGHT_HAVE_PC_PARPORT
475 select ARCH_MIGHT_HAVE_PC_SERIO 475 select ARCH_MIGHT_HAVE_PC_SERIO
476 select GENERIC_ISA_DMA_SUPPORT_BROKEN 476 select GENERIC_ISA_DMA_SUPPORT_BROKEN
477 select BOOT_ELF32 477 select BOOT_ELF32
478 select BOARD_SCACHE 478 select BOARD_SCACHE
479 select CSRC_R4K 479 select CSRC_R4K
480 select CEVT_R4K 480 select CEVT_R4K
481 select SYNC_R4K 481 select SYNC_R4K
482 select FORCE_PCI 482 select FORCE_PCI
483 select ISA 483 select ISA
484 select I8259 484 select I8259
485 select IRQ_MIPS_CPU 485 select IRQ_MIPS_CPU
486 select NO_EXCEPT_FILL 486 select NO_EXCEPT_FILL
487 select NR_CPUS_DEFAULT_64 487 select NR_CPUS_DEFAULT_64
488 select USE_GENERIC_EARLY_PRINTK_8250 488 select USE_GENERIC_EARLY_PRINTK_8250
489 select PCI_DRIVERS_GENERIC 489 select PCI_DRIVERS_GENERIC
490 select SYS_HAS_CPU_LOONGSON64 490 select SYS_HAS_CPU_LOONGSON64
491 select SYS_HAS_EARLY_PRINTK 491 select SYS_HAS_EARLY_PRINTK
492 select SYS_SUPPORTS_SMP 492 select SYS_SUPPORTS_SMP
493 select SYS_SUPPORTS_HOTPLUG_CPU 493 select SYS_SUPPORTS_HOTPLUG_CPU
494 select SYS_SUPPORTS_NUMA 494 select SYS_SUPPORTS_NUMA
495 select SYS_SUPPORTS_64BIT_KERNEL 495 select SYS_SUPPORTS_64BIT_KERNEL
496 select SYS_SUPPORTS_HIGHMEM 496 select SYS_SUPPORTS_HIGHMEM
497 select SYS_SUPPORTS_LITTLE_ENDIAN 497 select SYS_SUPPORTS_LITTLE_ENDIAN
498 select SYS_SUPPORTS_ZBOOT 498 select SYS_SUPPORTS_ZBOOT
499 select SYS_SUPPORTS_RELOCATABLE 499 select SYS_SUPPORTS_RELOCATABLE
500 select ZONE_DMA32 500 select ZONE_DMA32
501 select COMMON_CLK 501 select COMMON_CLK
502 select USE_OF 502 select USE_OF
503 select BUILTIN_DTB 503 select BUILTIN_DTB
504 select PCI_HOST_GENERIC 504 select PCI_HOST_GENERIC
>> 505 select HAVE_ARCH_NODEDATA_EXTENSION if NUMA
505 help 506 help
506 This enables the support of Loongson 507 This enables the support of Loongson-2/3 family of machines.
507 508
508 Loongson-2 and Loongson-3 are 64-bit 509 Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
509 GS264/GS464/GS464E/GS464V microarchi 510 GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
510 and Loongson-2F which will be remove 511 and Loongson-2F which will be removed), developed by the Institute
511 of Computing Technology (ICT), Chine 512 of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
512 513
513 config MIPS_MALTA 514 config MIPS_MALTA
514 bool "MIPS Malta board" 515 bool "MIPS Malta board"
515 select ARCH_MAY_HAVE_PC_FDC 516 select ARCH_MAY_HAVE_PC_FDC
516 select ARCH_MIGHT_HAVE_PC_PARPORT 517 select ARCH_MIGHT_HAVE_PC_PARPORT
517 select ARCH_MIGHT_HAVE_PC_SERIO 518 select ARCH_MIGHT_HAVE_PC_SERIO
518 select BOOT_ELF32 519 select BOOT_ELF32
519 select BOOT_RAW 520 select BOOT_RAW
520 select BUILTIN_DTB 521 select BUILTIN_DTB
521 select CEVT_R4K 522 select CEVT_R4K
522 select CLKSRC_MIPS_GIC 523 select CLKSRC_MIPS_GIC
523 select COMMON_CLK 524 select COMMON_CLK
524 select CSRC_R4K 525 select CSRC_R4K
525 select DMA_NONCOHERENT 526 select DMA_NONCOHERENT
526 select GENERIC_ISA_DMA 527 select GENERIC_ISA_DMA
527 select HAVE_PCSPKR_PLATFORM 528 select HAVE_PCSPKR_PLATFORM
528 select HAVE_PCI 529 select HAVE_PCI
529 select I8253 530 select I8253
530 select I8259 531 select I8259
531 select IRQ_MIPS_CPU 532 select IRQ_MIPS_CPU
532 select MIPS_BONITO64 533 select MIPS_BONITO64
533 select MIPS_CPU_SCACHE 534 select MIPS_CPU_SCACHE
534 select MIPS_GIC 535 select MIPS_GIC
535 select MIPS_L1_CACHE_SHIFT_6 536 select MIPS_L1_CACHE_SHIFT_6
536 select MIPS_MSC 537 select MIPS_MSC
537 select PCI_GT64XXX_PCI0 538 select PCI_GT64XXX_PCI0
538 select SMP_UP if SMP 539 select SMP_UP if SMP
539 select SWAP_IO_SPACE 540 select SWAP_IO_SPACE
540 select SYS_HAS_CPU_MIPS32_R1 541 select SYS_HAS_CPU_MIPS32_R1
541 select SYS_HAS_CPU_MIPS32_R2 542 select SYS_HAS_CPU_MIPS32_R2
542 select SYS_HAS_CPU_MIPS32_R3_5 543 select SYS_HAS_CPU_MIPS32_R3_5
543 select SYS_HAS_CPU_MIPS32_R5 544 select SYS_HAS_CPU_MIPS32_R5
544 select SYS_HAS_CPU_MIPS32_R6 545 select SYS_HAS_CPU_MIPS32_R6
545 select SYS_HAS_CPU_MIPS64_R1 546 select SYS_HAS_CPU_MIPS64_R1
546 select SYS_HAS_CPU_MIPS64_R2 547 select SYS_HAS_CPU_MIPS64_R2
547 select SYS_HAS_CPU_MIPS64_R6 548 select SYS_HAS_CPU_MIPS64_R6
548 select SYS_HAS_CPU_NEVADA 549 select SYS_HAS_CPU_NEVADA
549 select SYS_HAS_CPU_RM7000 550 select SYS_HAS_CPU_RM7000
550 select SYS_SUPPORTS_32BIT_KERNEL 551 select SYS_SUPPORTS_32BIT_KERNEL
551 select SYS_SUPPORTS_64BIT_KERNEL 552 select SYS_SUPPORTS_64BIT_KERNEL
552 select SYS_SUPPORTS_BIG_ENDIAN 553 select SYS_SUPPORTS_BIG_ENDIAN
553 select SYS_SUPPORTS_HIGHMEM 554 select SYS_SUPPORTS_HIGHMEM
554 select SYS_SUPPORTS_LITTLE_ENDIAN 555 select SYS_SUPPORTS_LITTLE_ENDIAN
555 select SYS_SUPPORTS_MICROMIPS 556 select SYS_SUPPORTS_MICROMIPS
556 select SYS_SUPPORTS_MIPS16 557 select SYS_SUPPORTS_MIPS16
557 select SYS_SUPPORTS_MIPS_CPS 558 select SYS_SUPPORTS_MIPS_CPS
558 select SYS_SUPPORTS_MULTITHREADING 559 select SYS_SUPPORTS_MULTITHREADING
559 select SYS_SUPPORTS_RELOCATABLE 560 select SYS_SUPPORTS_RELOCATABLE
560 select SYS_SUPPORTS_SMARTMIPS 561 select SYS_SUPPORTS_SMARTMIPS
561 select SYS_SUPPORTS_VPE_LOADER 562 select SYS_SUPPORTS_VPE_LOADER
562 select SYS_SUPPORTS_ZBOOT 563 select SYS_SUPPORTS_ZBOOT
563 select USE_OF 564 select USE_OF
564 select WAR_ICACHE_REFILLS 565 select WAR_ICACHE_REFILLS
565 select ZONE_DMA32 if 64BIT 566 select ZONE_DMA32 if 64BIT
566 help 567 help
567 This enables support for the MIPS Te 568 This enables support for the MIPS Technologies Malta evaluation
568 board. 569 board.
569 570
570 config MACH_PIC32 571 config MACH_PIC32
571 bool "Microchip PIC32 Family" 572 bool "Microchip PIC32 Family"
572 help 573 help
573 This enables support for the Microch 574 This enables support for the Microchip PIC32 family of platforms.
574 575
575 Microchip PIC32 is a family of gener 576 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
576 microcontrollers. 577 microcontrollers.
577 578
578 config EYEQ 579 config EYEQ
579 bool "Mobileye EyeQ SoC" 580 bool "Mobileye EyeQ SoC"
580 select MACH_GENERIC_CORE 581 select MACH_GENERIC_CORE
581 select ARM_AMBA 582 select ARM_AMBA
582 select PHYSICAL_START_BOOL 583 select PHYSICAL_START_BOOL
583 select ARCH_SPARSEMEM_DEFAULT if 64BIT 584 select ARCH_SPARSEMEM_DEFAULT if 64BIT
584 select BOOT_RAW 585 select BOOT_RAW
585 select BUILTIN_DTB 586 select BUILTIN_DTB
586 select CEVT_R4K 587 select CEVT_R4K
587 select CLKSRC_MIPS_GIC 588 select CLKSRC_MIPS_GIC
588 select COMMON_CLK 589 select COMMON_CLK
589 select CPU_MIPSR2_IRQ_EI 590 select CPU_MIPSR2_IRQ_EI
590 select CPU_MIPSR2_IRQ_VI 591 select CPU_MIPSR2_IRQ_VI
591 select CSRC_R4K 592 select CSRC_R4K
592 select DMA_NONCOHERENT 593 select DMA_NONCOHERENT
593 select HAVE_PCI 594 select HAVE_PCI
594 select IRQ_MIPS_CPU 595 select IRQ_MIPS_CPU
595 select MIPS_AUTO_PFN_OFFSET 596 select MIPS_AUTO_PFN_OFFSET
596 select MIPS_CPU_SCACHE 597 select MIPS_CPU_SCACHE
597 select MIPS_GIC 598 select MIPS_GIC
598 select MIPS_L1_CACHE_SHIFT_7 599 select MIPS_L1_CACHE_SHIFT_7
599 select PCI_DRIVERS_GENERIC 600 select PCI_DRIVERS_GENERIC
600 select SMP_UP if SMP 601 select SMP_UP if SMP
601 select SWAP_IO_SPACE 602 select SWAP_IO_SPACE
602 select SYS_HAS_CPU_MIPS64_R6 603 select SYS_HAS_CPU_MIPS64_R6
603 select SYS_SUPPORTS_64BIT_KERNEL 604 select SYS_SUPPORTS_64BIT_KERNEL
604 select SYS_SUPPORTS_HIGHMEM 605 select SYS_SUPPORTS_HIGHMEM
605 select SYS_SUPPORTS_LITTLE_ENDIAN 606 select SYS_SUPPORTS_LITTLE_ENDIAN
606 select SYS_SUPPORTS_MIPS_CPS 607 select SYS_SUPPORTS_MIPS_CPS
607 select SYS_SUPPORTS_RELOCATABLE 608 select SYS_SUPPORTS_RELOCATABLE
608 select SYS_SUPPORTS_ZBOOT 609 select SYS_SUPPORTS_ZBOOT
609 select UHI_BOOT 610 select UHI_BOOT
610 select USB_EHCI_BIG_ENDIAN_DESC if CPU 611 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
611 select USB_EHCI_BIG_ENDIAN_MMIO if CPU 612 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
612 select USB_OHCI_BIG_ENDIAN_DESC if CPU 613 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
613 select USB_OHCI_BIG_ENDIAN_MMIO if CPU 614 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
614 select USB_UHCI_BIG_ENDIAN_DESC if CPU 615 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
615 select USB_UHCI_BIG_ENDIAN_MMIO if CPU 616 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
616 select USE_OF 617 select USE_OF
617 help 618 help
618 Select this to build a kernel suppor 619 Select this to build a kernel supporting EyeQ SoC from Mobileye.
619 620
620 bool 621 bool
621 622
622 config MACH_NINTENDO64 623 config MACH_NINTENDO64
623 bool "Nintendo 64 console" 624 bool "Nintendo 64 console"
624 select CEVT_R4K 625 select CEVT_R4K
625 select CSRC_R4K 626 select CSRC_R4K
626 select SYS_HAS_CPU_R4300 627 select SYS_HAS_CPU_R4300
627 select SYS_SUPPORTS_BIG_ENDIAN 628 select SYS_SUPPORTS_BIG_ENDIAN
628 select SYS_SUPPORTS_ZBOOT 629 select SYS_SUPPORTS_ZBOOT
629 select SYS_SUPPORTS_32BIT_KERNEL 630 select SYS_SUPPORTS_32BIT_KERNEL
630 select SYS_SUPPORTS_64BIT_KERNEL 631 select SYS_SUPPORTS_64BIT_KERNEL
631 select DMA_NONCOHERENT 632 select DMA_NONCOHERENT
632 select IRQ_MIPS_CPU 633 select IRQ_MIPS_CPU
633 634
634 config RALINK 635 config RALINK
635 bool "Ralink based machines" 636 bool "Ralink based machines"
636 select CEVT_R4K 637 select CEVT_R4K
637 select COMMON_CLK 638 select COMMON_CLK
638 select CSRC_R4K 639 select CSRC_R4K
639 select BOOT_RAW 640 select BOOT_RAW
640 select DMA_NONCOHERENT 641 select DMA_NONCOHERENT
641 select IRQ_MIPS_CPU 642 select IRQ_MIPS_CPU
642 select USE_OF 643 select USE_OF
643 select SYS_HAS_CPU_MIPS32_R2 644 select SYS_HAS_CPU_MIPS32_R2
644 select SYS_SUPPORTS_32BIT_KERNEL 645 select SYS_SUPPORTS_32BIT_KERNEL
645 select SYS_SUPPORTS_LITTLE_ENDIAN 646 select SYS_SUPPORTS_LITTLE_ENDIAN
646 select SYS_SUPPORTS_MIPS16 647 select SYS_SUPPORTS_MIPS16
647 select SYS_SUPPORTS_ZBOOT 648 select SYS_SUPPORTS_ZBOOT
648 select SYS_HAS_EARLY_PRINTK 649 select SYS_HAS_EARLY_PRINTK
649 select ARCH_HAS_RESET_CONTROLLER 650 select ARCH_HAS_RESET_CONTROLLER
650 select RESET_CONTROLLER 651 select RESET_CONTROLLER
651 652
652 config MACH_REALTEK_RTL 653 config MACH_REALTEK_RTL
653 bool "Realtek RTL838x/RTL839x based ma 654 bool "Realtek RTL838x/RTL839x based machines"
654 select MIPS_GENERIC 655 select MIPS_GENERIC
655 select MACH_GENERIC_CORE 656 select MACH_GENERIC_CORE
656 select DMA_NONCOHERENT 657 select DMA_NONCOHERENT
657 select IRQ_MIPS_CPU 658 select IRQ_MIPS_CPU
658 select CSRC_R4K 659 select CSRC_R4K
659 select CEVT_R4K 660 select CEVT_R4K
660 select SYS_HAS_CPU_MIPS32_R1 661 select SYS_HAS_CPU_MIPS32_R1
661 select SYS_HAS_CPU_MIPS32_R2 662 select SYS_HAS_CPU_MIPS32_R2
662 select SYS_SUPPORTS_BIG_ENDIAN 663 select SYS_SUPPORTS_BIG_ENDIAN
663 select SYS_SUPPORTS_32BIT_KERNEL 664 select SYS_SUPPORTS_32BIT_KERNEL
664 select SYS_SUPPORTS_MIPS16 665 select SYS_SUPPORTS_MIPS16
665 select SYS_SUPPORTS_MULTITHREADING 666 select SYS_SUPPORTS_MULTITHREADING
666 select SYS_SUPPORTS_VPE_LOADER 667 select SYS_SUPPORTS_VPE_LOADER
667 select BOOT_RAW 668 select BOOT_RAW
668 select PINCTRL 669 select PINCTRL
669 select USE_OF 670 select USE_OF
670 select REALTEK_OTTO_TIMER 671 select REALTEK_OTTO_TIMER
671 672
672 config SGI_IP22 673 config SGI_IP22
673 bool "SGI IP22 (Indy/Indigo2)" 674 bool "SGI IP22 (Indy/Indigo2)"
674 select ARC_MEMORY 675 select ARC_MEMORY
675 select ARC_PROMLIB 676 select ARC_PROMLIB
676 select FW_ARC 677 select FW_ARC
677 select FW_ARC32 678 select FW_ARC32
678 select ARCH_MIGHT_HAVE_PC_SERIO 679 select ARCH_MIGHT_HAVE_PC_SERIO
679 select BOOT_ELF32 680 select BOOT_ELF32
680 select CEVT_R4K 681 select CEVT_R4K
681 select CSRC_R4K 682 select CSRC_R4K
682 select DEFAULT_SGI_PARTITION 683 select DEFAULT_SGI_PARTITION
683 select DMA_NONCOHERENT 684 select DMA_NONCOHERENT
684 select HAVE_EISA 685 select HAVE_EISA
685 select I8253 686 select I8253
686 select I8259 687 select I8259
687 select IP22_CPU_SCACHE 688 select IP22_CPU_SCACHE
688 select IRQ_MIPS_CPU 689 select IRQ_MIPS_CPU
689 select GENERIC_ISA_DMA_SUPPORT_BROKEN 690 select GENERIC_ISA_DMA_SUPPORT_BROKEN
690 select SGI_HAS_I8042 691 select SGI_HAS_I8042
691 select SGI_HAS_INDYDOG 692 select SGI_HAS_INDYDOG
692 select SGI_HAS_HAL2 693 select SGI_HAS_HAL2
693 select SGI_HAS_SEEQ 694 select SGI_HAS_SEEQ
694 select SGI_HAS_WD93 695 select SGI_HAS_WD93
695 select SGI_HAS_ZILOG 696 select SGI_HAS_ZILOG
696 select SWAP_IO_SPACE 697 select SWAP_IO_SPACE
697 select SYS_HAS_CPU_R4X00 698 select SYS_HAS_CPU_R4X00
698 select SYS_HAS_CPU_R5000 699 select SYS_HAS_CPU_R5000
699 select SYS_HAS_EARLY_PRINTK 700 select SYS_HAS_EARLY_PRINTK
700 select SYS_SUPPORTS_32BIT_KERNEL 701 select SYS_SUPPORTS_32BIT_KERNEL
701 select SYS_SUPPORTS_64BIT_KERNEL 702 select SYS_SUPPORTS_64BIT_KERNEL
702 select SYS_SUPPORTS_BIG_ENDIAN 703 select SYS_SUPPORTS_BIG_ENDIAN
703 select WAR_R4600_V1_INDEX_ICACHEOP 704 select WAR_R4600_V1_INDEX_ICACHEOP
704 select WAR_R4600_V1_HIT_CACHEOP 705 select WAR_R4600_V1_HIT_CACHEOP
705 select WAR_R4600_V2_HIT_CACHEOP 706 select WAR_R4600_V2_HIT_CACHEOP
706 select MIPS_L1_CACHE_SHIFT_7 707 select MIPS_L1_CACHE_SHIFT_7
707 help 708 help
708 This are the SGI Indy, Challenge S a 709 This are the SGI Indy, Challenge S and Indigo2, as well as certain
709 OEM variants like the Tandem CMN B00 710 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
710 that runs on these, say Y here. 711 that runs on these, say Y here.
711 712
712 config SGI_IP27 713 config SGI_IP27
713 bool "SGI IP27 (Origin200/2000)" 714 bool "SGI IP27 (Origin200/2000)"
714 select ARCH_HAS_PHYS_TO_DMA 715 select ARCH_HAS_PHYS_TO_DMA
715 select ARCH_SPARSEMEM_ENABLE 716 select ARCH_SPARSEMEM_ENABLE
716 select FW_ARC 717 select FW_ARC
717 select FW_ARC64 718 select FW_ARC64
718 select ARC_CMDLINE_ONLY 719 select ARC_CMDLINE_ONLY
719 select BOOT_ELF64 720 select BOOT_ELF64
720 select DEFAULT_SGI_PARTITION 721 select DEFAULT_SGI_PARTITION
721 select FORCE_PCI 722 select FORCE_PCI
722 select SYS_HAS_EARLY_PRINTK 723 select SYS_HAS_EARLY_PRINTK
723 select HAVE_PCI 724 select HAVE_PCI
724 select IRQ_MIPS_CPU 725 select IRQ_MIPS_CPU
725 select IRQ_DOMAIN_HIERARCHY 726 select IRQ_DOMAIN_HIERARCHY
726 select NR_CPUS_DEFAULT_64 727 select NR_CPUS_DEFAULT_64
727 select PCI_DRIVERS_GENERIC 728 select PCI_DRIVERS_GENERIC
728 select PCI_XTALK_BRIDGE 729 select PCI_XTALK_BRIDGE
729 select SYS_HAS_CPU_R10000 730 select SYS_HAS_CPU_R10000
730 select SYS_SUPPORTS_64BIT_KERNEL 731 select SYS_SUPPORTS_64BIT_KERNEL
731 select SYS_SUPPORTS_BIG_ENDIAN 732 select SYS_SUPPORTS_BIG_ENDIAN
732 select SYS_SUPPORTS_NUMA 733 select SYS_SUPPORTS_NUMA
733 select SYS_SUPPORTS_SMP 734 select SYS_SUPPORTS_SMP
734 select WAR_R10000_LLSC 735 select WAR_R10000_LLSC
735 select MIPS_L1_CACHE_SHIFT_7 736 select MIPS_L1_CACHE_SHIFT_7
736 select NUMA 737 select NUMA
>> 738 select HAVE_ARCH_NODEDATA_EXTENSION
737 help 739 help
738 This are the SGI Origin 200, Origin 740 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
739 workstations. To compile a Linux ke 741 workstations. To compile a Linux kernel that runs on these, say Y
740 here. 742 here.
741 743
742 config SGI_IP28 744 config SGI_IP28
743 bool "SGI IP28 (Indigo2 R10k)" 745 bool "SGI IP28 (Indigo2 R10k)"
744 select ARC_MEMORY 746 select ARC_MEMORY
745 select ARC_PROMLIB 747 select ARC_PROMLIB
746 select FW_ARC 748 select FW_ARC
747 select FW_ARC64 749 select FW_ARC64
748 select ARCH_MIGHT_HAVE_PC_SERIO 750 select ARCH_MIGHT_HAVE_PC_SERIO
749 select BOOT_ELF64 751 select BOOT_ELF64
750 select CEVT_R4K 752 select CEVT_R4K
751 select CSRC_R4K 753 select CSRC_R4K
752 select DEFAULT_SGI_PARTITION 754 select DEFAULT_SGI_PARTITION
753 select DMA_NONCOHERENT 755 select DMA_NONCOHERENT
754 select GENERIC_ISA_DMA_SUPPORT_BROKEN 756 select GENERIC_ISA_DMA_SUPPORT_BROKEN
755 select IRQ_MIPS_CPU 757 select IRQ_MIPS_CPU
756 select HAVE_EISA 758 select HAVE_EISA
757 select I8253 759 select I8253
758 select I8259 760 select I8259
759 select SGI_HAS_I8042 761 select SGI_HAS_I8042
760 select SGI_HAS_INDYDOG 762 select SGI_HAS_INDYDOG
761 select SGI_HAS_HAL2 763 select SGI_HAS_HAL2
762 select SGI_HAS_SEEQ 764 select SGI_HAS_SEEQ
763 select SGI_HAS_WD93 765 select SGI_HAS_WD93
764 select SGI_HAS_ZILOG 766 select SGI_HAS_ZILOG
765 select SWAP_IO_SPACE 767 select SWAP_IO_SPACE
766 select SYS_HAS_CPU_R10000 768 select SYS_HAS_CPU_R10000
767 select SYS_HAS_EARLY_PRINTK 769 select SYS_HAS_EARLY_PRINTK
768 select SYS_SUPPORTS_64BIT_KERNEL 770 select SYS_SUPPORTS_64BIT_KERNEL
769 select SYS_SUPPORTS_BIG_ENDIAN 771 select SYS_SUPPORTS_BIG_ENDIAN
770 select WAR_R10000_LLSC 772 select WAR_R10000_LLSC
771 select MIPS_L1_CACHE_SHIFT_7 773 select MIPS_L1_CACHE_SHIFT_7
772 help 774 help
773 This is the SGI Indigo2 with R10000 775 This is the SGI Indigo2 with R10000 processor. To compile a Linux
774 kernel that runs on these, say Y her 776 kernel that runs on these, say Y here.
775 777
776 config SGI_IP30 778 config SGI_IP30
777 bool "SGI IP30 (Octane/Octane2)" 779 bool "SGI IP30 (Octane/Octane2)"
778 select ARCH_HAS_PHYS_TO_DMA 780 select ARCH_HAS_PHYS_TO_DMA
779 select FW_ARC 781 select FW_ARC
780 select FW_ARC64 782 select FW_ARC64
781 select BOOT_ELF64 783 select BOOT_ELF64
782 select CEVT_R4K 784 select CEVT_R4K
783 select CSRC_R4K 785 select CSRC_R4K
784 select FORCE_PCI 786 select FORCE_PCI
785 select SYNC_R4K if SMP 787 select SYNC_R4K if SMP
786 select ZONE_DMA32 788 select ZONE_DMA32
787 select HAVE_PCI 789 select HAVE_PCI
788 select IRQ_MIPS_CPU 790 select IRQ_MIPS_CPU
789 select IRQ_DOMAIN_HIERARCHY 791 select IRQ_DOMAIN_HIERARCHY
790 select PCI_DRIVERS_GENERIC 792 select PCI_DRIVERS_GENERIC
791 select PCI_XTALK_BRIDGE 793 select PCI_XTALK_BRIDGE
792 select SYS_HAS_EARLY_PRINTK 794 select SYS_HAS_EARLY_PRINTK
793 select SYS_HAS_CPU_R10000 795 select SYS_HAS_CPU_R10000
794 select SYS_SUPPORTS_64BIT_KERNEL 796 select SYS_SUPPORTS_64BIT_KERNEL
795 select SYS_SUPPORTS_BIG_ENDIAN 797 select SYS_SUPPORTS_BIG_ENDIAN
796 select SYS_SUPPORTS_SMP 798 select SYS_SUPPORTS_SMP
797 select WAR_R10000_LLSC 799 select WAR_R10000_LLSC
798 select MIPS_L1_CACHE_SHIFT_7 800 select MIPS_L1_CACHE_SHIFT_7
799 select ARC_MEMORY 801 select ARC_MEMORY
800 help 802 help
801 These are the SGI Octane and Octane2 803 These are the SGI Octane and Octane2 graphics workstations. To
802 compile a Linux kernel that runs on 804 compile a Linux kernel that runs on these, say Y here.
803 805
804 config SGI_IP32 806 config SGI_IP32
805 bool "SGI IP32 (O2)" 807 bool "SGI IP32 (O2)"
806 select ARC_MEMORY 808 select ARC_MEMORY
807 select ARC_PROMLIB 809 select ARC_PROMLIB
808 select ARCH_HAS_PHYS_TO_DMA 810 select ARCH_HAS_PHYS_TO_DMA
809 select FW_ARC 811 select FW_ARC
810 select FW_ARC32 812 select FW_ARC32
811 select BOOT_ELF32 813 select BOOT_ELF32
812 select CEVT_R4K 814 select CEVT_R4K
813 select CSRC_R4K 815 select CSRC_R4K
814 select DMA_NONCOHERENT 816 select DMA_NONCOHERENT
815 select HAVE_PCI 817 select HAVE_PCI
816 select IRQ_MIPS_CPU 818 select IRQ_MIPS_CPU
817 select R5000_CPU_SCACHE 819 select R5000_CPU_SCACHE
818 select RM7000_CPU_SCACHE 820 select RM7000_CPU_SCACHE
819 select SYS_HAS_CPU_R5000 821 select SYS_HAS_CPU_R5000
820 select SYS_HAS_CPU_R10000 if BROKEN 822 select SYS_HAS_CPU_R10000 if BROKEN
821 select SYS_HAS_CPU_RM7000 823 select SYS_HAS_CPU_RM7000
822 select SYS_HAS_CPU_NEVADA 824 select SYS_HAS_CPU_NEVADA
823 select SYS_SUPPORTS_64BIT_KERNEL 825 select SYS_SUPPORTS_64BIT_KERNEL
824 select SYS_SUPPORTS_BIG_ENDIAN 826 select SYS_SUPPORTS_BIG_ENDIAN
825 select WAR_ICACHE_REFILLS 827 select WAR_ICACHE_REFILLS
826 help 828 help
827 If you want this kernel to run on SG 829 If you want this kernel to run on SGI O2 workstation, say Y here.
828 830
829 config SIBYTE_CRHONE 831 config SIBYTE_CRHONE
830 bool "Sibyte BCM91125C-CRhone" 832 bool "Sibyte BCM91125C-CRhone"
831 select BOOT_ELF32 833 select BOOT_ELF32
832 select SIBYTE_BCM1125 834 select SIBYTE_BCM1125
833 select SWAP_IO_SPACE 835 select SWAP_IO_SPACE
834 select SYS_HAS_CPU_SB1 836 select SYS_HAS_CPU_SB1
835 select SYS_SUPPORTS_BIG_ENDIAN 837 select SYS_SUPPORTS_BIG_ENDIAN
836 select SYS_SUPPORTS_HIGHMEM 838 select SYS_SUPPORTS_HIGHMEM
837 select SYS_SUPPORTS_LITTLE_ENDIAN 839 select SYS_SUPPORTS_LITTLE_ENDIAN
838 840
839 config SIBYTE_RHONE 841 config SIBYTE_RHONE
840 bool "Sibyte BCM91125E-Rhone" 842 bool "Sibyte BCM91125E-Rhone"
841 select BOOT_ELF32 843 select BOOT_ELF32
842 select SIBYTE_SB1250 844 select SIBYTE_SB1250
843 select SWAP_IO_SPACE 845 select SWAP_IO_SPACE
844 select SYS_HAS_CPU_SB1 846 select SYS_HAS_CPU_SB1
845 select SYS_SUPPORTS_BIG_ENDIAN 847 select SYS_SUPPORTS_BIG_ENDIAN
846 select SYS_SUPPORTS_LITTLE_ENDIAN 848 select SYS_SUPPORTS_LITTLE_ENDIAN
847 849
848 config SIBYTE_SWARM 850 config SIBYTE_SWARM
849 bool "Sibyte BCM91250A-SWARM" 851 bool "Sibyte BCM91250A-SWARM"
850 select BOOT_ELF32 852 select BOOT_ELF32
851 select HAVE_PATA_PLATFORM 853 select HAVE_PATA_PLATFORM
852 select SIBYTE_SB1250 854 select SIBYTE_SB1250
853 select SWAP_IO_SPACE 855 select SWAP_IO_SPACE
854 select SYS_HAS_CPU_SB1 856 select SYS_HAS_CPU_SB1
855 select SYS_SUPPORTS_BIG_ENDIAN 857 select SYS_SUPPORTS_BIG_ENDIAN
856 select SYS_SUPPORTS_HIGHMEM 858 select SYS_SUPPORTS_HIGHMEM
857 select SYS_SUPPORTS_LITTLE_ENDIAN 859 select SYS_SUPPORTS_LITTLE_ENDIAN
858 select ZONE_DMA32 if 64BIT 860 select ZONE_DMA32 if 64BIT
859 select SWIOTLB if ARCH_DMA_ADDR_T_64BI 861 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
860 862
861 config SIBYTE_LITTLESUR 863 config SIBYTE_LITTLESUR
862 bool "Sibyte BCM91250C2-LittleSur" 864 bool "Sibyte BCM91250C2-LittleSur"
863 select BOOT_ELF32 865 select BOOT_ELF32
864 select HAVE_PATA_PLATFORM 866 select HAVE_PATA_PLATFORM
865 select SIBYTE_SB1250 867 select SIBYTE_SB1250
866 select SWAP_IO_SPACE 868 select SWAP_IO_SPACE
867 select SYS_HAS_CPU_SB1 869 select SYS_HAS_CPU_SB1
868 select SYS_SUPPORTS_BIG_ENDIAN 870 select SYS_SUPPORTS_BIG_ENDIAN
869 select SYS_SUPPORTS_HIGHMEM 871 select SYS_SUPPORTS_HIGHMEM
870 select SYS_SUPPORTS_LITTLE_ENDIAN 872 select SYS_SUPPORTS_LITTLE_ENDIAN
871 select ZONE_DMA32 if 64BIT 873 select ZONE_DMA32 if 64BIT
872 874
873 config SIBYTE_SENTOSA 875 config SIBYTE_SENTOSA
874 bool "Sibyte BCM91250E-Sentosa" 876 bool "Sibyte BCM91250E-Sentosa"
875 select BOOT_ELF32 877 select BOOT_ELF32
876 select SIBYTE_SB1250 878 select SIBYTE_SB1250
877 select SWAP_IO_SPACE 879 select SWAP_IO_SPACE
878 select SYS_HAS_CPU_SB1 880 select SYS_HAS_CPU_SB1
879 select SYS_SUPPORTS_BIG_ENDIAN 881 select SYS_SUPPORTS_BIG_ENDIAN
880 select SYS_SUPPORTS_LITTLE_ENDIAN 882 select SYS_SUPPORTS_LITTLE_ENDIAN
881 select SWIOTLB if ARCH_DMA_ADDR_T_64BI 883 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
882 884
883 config SIBYTE_BIGSUR 885 config SIBYTE_BIGSUR
884 bool "Sibyte BCM91480B-BigSur" 886 bool "Sibyte BCM91480B-BigSur"
885 select BOOT_ELF32 887 select BOOT_ELF32
886 select NR_CPUS_DEFAULT_4 888 select NR_CPUS_DEFAULT_4
887 select SIBYTE_BCM1x80 889 select SIBYTE_BCM1x80
888 select SWAP_IO_SPACE 890 select SWAP_IO_SPACE
889 select SYS_HAS_CPU_SB1 891 select SYS_HAS_CPU_SB1
890 select SYS_SUPPORTS_BIG_ENDIAN 892 select SYS_SUPPORTS_BIG_ENDIAN
891 select SYS_SUPPORTS_HIGHMEM 893 select SYS_SUPPORTS_HIGHMEM
892 select SYS_SUPPORTS_LITTLE_ENDIAN 894 select SYS_SUPPORTS_LITTLE_ENDIAN
893 select ZONE_DMA32 if 64BIT 895 select ZONE_DMA32 if 64BIT
894 select SWIOTLB if ARCH_DMA_ADDR_T_64BI 896 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
895 897
896 config SNI_RM 898 config SNI_RM
897 bool "SNI RM200/300/400" 899 bool "SNI RM200/300/400"
898 select ARC_MEMORY 900 select ARC_MEMORY
899 select ARC_PROMLIB 901 select ARC_PROMLIB
900 select FW_ARC if CPU_LITTLE_ENDIAN 902 select FW_ARC if CPU_LITTLE_ENDIAN
901 select FW_ARC32 if CPU_LITTLE_ENDIAN 903 select FW_ARC32 if CPU_LITTLE_ENDIAN
902 select FW_SNIPROM if CPU_BIG_ENDIAN 904 select FW_SNIPROM if CPU_BIG_ENDIAN
903 select ARCH_MAY_HAVE_PC_FDC 905 select ARCH_MAY_HAVE_PC_FDC
904 select ARCH_MIGHT_HAVE_PC_PARPORT 906 select ARCH_MIGHT_HAVE_PC_PARPORT
905 select ARCH_MIGHT_HAVE_PC_SERIO 907 select ARCH_MIGHT_HAVE_PC_SERIO
906 select BOOT_ELF32 908 select BOOT_ELF32
907 select CEVT_R4K 909 select CEVT_R4K
908 select CSRC_R4K 910 select CSRC_R4K
909 select DEFAULT_SGI_PARTITION if CPU_BI 911 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
910 select DMA_NONCOHERENT 912 select DMA_NONCOHERENT
911 select GENERIC_ISA_DMA 913 select GENERIC_ISA_DMA
912 select HAVE_EISA 914 select HAVE_EISA
913 select HAVE_PCSPKR_PLATFORM 915 select HAVE_PCSPKR_PLATFORM
914 select HAVE_PCI 916 select HAVE_PCI
915 select IRQ_MIPS_CPU 917 select IRQ_MIPS_CPU
916 select I8253 918 select I8253
917 select I8259 919 select I8259
918 select ISA 920 select ISA
919 select MIPS_L1_CACHE_SHIFT_6 921 select MIPS_L1_CACHE_SHIFT_6
920 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 922 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
921 select SYS_HAS_CPU_R4X00 923 select SYS_HAS_CPU_R4X00
922 select SYS_HAS_CPU_R5000 924 select SYS_HAS_CPU_R5000
923 select SYS_HAS_CPU_R10000 925 select SYS_HAS_CPU_R10000
924 select R5000_CPU_SCACHE 926 select R5000_CPU_SCACHE
925 select SYS_HAS_EARLY_PRINTK 927 select SYS_HAS_EARLY_PRINTK
926 select SYS_SUPPORTS_32BIT_KERNEL 928 select SYS_SUPPORTS_32BIT_KERNEL
927 select SYS_SUPPORTS_64BIT_KERNEL 929 select SYS_SUPPORTS_64BIT_KERNEL
928 select SYS_SUPPORTS_BIG_ENDIAN 930 select SYS_SUPPORTS_BIG_ENDIAN
929 select SYS_SUPPORTS_HIGHMEM 931 select SYS_SUPPORTS_HIGHMEM
930 select SYS_SUPPORTS_LITTLE_ENDIAN 932 select SYS_SUPPORTS_LITTLE_ENDIAN
931 select WAR_R4600_V2_HIT_CACHEOP 933 select WAR_R4600_V2_HIT_CACHEOP
932 help 934 help
933 The SNI RM200/300/400 are MIPS-based 935 The SNI RM200/300/400 are MIPS-based machines manufactured by
934 Siemens Nixdorf Informationssysteme 936 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
935 Technology and now in turn merged wi 937 Technology and now in turn merged with Fujitsu. Say Y here to
936 support this machine type. 938 support this machine type.
937 939
938 config MACH_TX49XX 940 config MACH_TX49XX
939 bool "Toshiba TX49 series based machin 941 bool "Toshiba TX49 series based machines"
940 select WAR_TX49XX_ICACHE_INDEX_INV 942 select WAR_TX49XX_ICACHE_INDEX_INV
941 943
942 config MIKROTIK_RB532 944 config MIKROTIK_RB532
943 bool "Mikrotik RB532 boards" 945 bool "Mikrotik RB532 boards"
944 select CEVT_R4K 946 select CEVT_R4K
945 select CSRC_R4K 947 select CSRC_R4K
946 select DMA_NONCOHERENT 948 select DMA_NONCOHERENT
947 select HAVE_PCI 949 select HAVE_PCI
948 select IRQ_MIPS_CPU 950 select IRQ_MIPS_CPU
949 select SYS_HAS_CPU_MIPS32_R1 951 select SYS_HAS_CPU_MIPS32_R1
950 select SYS_SUPPORTS_32BIT_KERNEL 952 select SYS_SUPPORTS_32BIT_KERNEL
951 select SYS_SUPPORTS_LITTLE_ENDIAN 953 select SYS_SUPPORTS_LITTLE_ENDIAN
952 select SWAP_IO_SPACE 954 select SWAP_IO_SPACE
953 select BOOT_RAW 955 select BOOT_RAW
954 select GPIOLIB 956 select GPIOLIB
955 select MIPS_L1_CACHE_SHIFT_4 957 select MIPS_L1_CACHE_SHIFT_4
956 help 958 help
957 Support the Mikrotik(tm) RouterBoard 959 Support the Mikrotik(tm) RouterBoard 532 series,
958 based on the IDT RC32434 SoC. 960 based on the IDT RC32434 SoC.
959 961
960 config CAVIUM_OCTEON_SOC 962 config CAVIUM_OCTEON_SOC
961 bool "Cavium Networks Octeon SoC based 963 bool "Cavium Networks Octeon SoC based boards"
962 select CEVT_R4K 964 select CEVT_R4K
963 select ARCH_HAS_PHYS_TO_DMA 965 select ARCH_HAS_PHYS_TO_DMA
964 select HAVE_RAPIDIO 966 select HAVE_RAPIDIO
965 select PHYS_ADDR_T_64BIT 967 select PHYS_ADDR_T_64BIT
966 select SYS_SUPPORTS_64BIT_KERNEL 968 select SYS_SUPPORTS_64BIT_KERNEL
967 select SYS_SUPPORTS_BIG_ENDIAN 969 select SYS_SUPPORTS_BIG_ENDIAN
968 select EDAC_SUPPORT 970 select EDAC_SUPPORT
969 select EDAC_ATOMIC_SCRUB 971 select EDAC_ATOMIC_SCRUB
970 select SYS_SUPPORTS_LITTLE_ENDIAN 972 select SYS_SUPPORTS_LITTLE_ENDIAN
971 select SYS_SUPPORTS_HOTPLUG_CPU if CPU 973 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
972 select SYS_HAS_EARLY_PRINTK 974 select SYS_HAS_EARLY_PRINTK
973 select SYS_HAS_CPU_CAVIUM_OCTEON 975 select SYS_HAS_CPU_CAVIUM_OCTEON
974 select HAVE_PCI 976 select HAVE_PCI
975 select HAVE_PLAT_DELAY 977 select HAVE_PLAT_DELAY
976 select HAVE_PLAT_FW_INIT_CMDLINE 978 select HAVE_PLAT_FW_INIT_CMDLINE
977 select HAVE_PLAT_MEMCPY 979 select HAVE_PLAT_MEMCPY
978 select ZONE_DMA32 980 select ZONE_DMA32
979 select GPIOLIB 981 select GPIOLIB
980 select USE_OF 982 select USE_OF
981 select ARCH_SPARSEMEM_ENABLE 983 select ARCH_SPARSEMEM_ENABLE
982 select SYS_SUPPORTS_SMP 984 select SYS_SUPPORTS_SMP
983 select NR_CPUS_DEFAULT_64 985 select NR_CPUS_DEFAULT_64
984 select MIPS_NR_CPU_NR_MAP_1024 986 select MIPS_NR_CPU_NR_MAP_1024
985 select BUILTIN_DTB 987 select BUILTIN_DTB
986 select MTD 988 select MTD
987 select MTD_COMPLEX_MAPPINGS 989 select MTD_COMPLEX_MAPPINGS
988 select SWIOTLB 990 select SWIOTLB
989 select SYS_SUPPORTS_RELOCATABLE 991 select SYS_SUPPORTS_RELOCATABLE
990 help 992 help
991 This option supports all of the Octe 993 This option supports all of the Octeon reference boards from Cavium
992 Networks. It builds a kernel that dy 994 Networks. It builds a kernel that dynamically determines the Octeon
993 CPU type and supports all known boar 995 CPU type and supports all known board reference implementations.
994 Some of the supported boards are: 996 Some of the supported boards are:
995 EBT3000 997 EBT3000
996 EBH3000 998 EBH3000
997 EBH3100 999 EBH3100
998 Thunder 1000 Thunder
999 Kodama 1001 Kodama
1000 Hikari 1002 Hikari
1001 Say Y here for most Octeon referenc 1003 Say Y here for most Octeon reference boards.
1002 1004
1003 endchoice 1005 endchoice
1004 1006
1005 config FIT_IMAGE_FDT_EPM5 1007 config FIT_IMAGE_FDT_EPM5
1006 bool "Include FDT for Mobileye EyeQ5 1008 bool "Include FDT for Mobileye EyeQ5 development platforms"
1007 depends on MACH_EYEQ5 1009 depends on MACH_EYEQ5
1008 default n 1010 default n
1009 help 1011 help
1010 Enable this to include the FDT for 1012 Enable this to include the FDT for the EyeQ5 development platforms
1011 from Mobileye in the FIT kernel ima 1013 from Mobileye in the FIT kernel image.
1012 This requires u-boot on the platfor 1014 This requires u-boot on the platform.
1013 1015
1014 source "arch/mips/alchemy/Kconfig" 1016 source "arch/mips/alchemy/Kconfig"
1015 source "arch/mips/ath25/Kconfig" 1017 source "arch/mips/ath25/Kconfig"
1016 source "arch/mips/ath79/Kconfig" 1018 source "arch/mips/ath79/Kconfig"
1017 source "arch/mips/bcm47xx/Kconfig" 1019 source "arch/mips/bcm47xx/Kconfig"
1018 source "arch/mips/bcm63xx/Kconfig" 1020 source "arch/mips/bcm63xx/Kconfig"
1019 source "arch/mips/bmips/Kconfig" 1021 source "arch/mips/bmips/Kconfig"
1020 source "arch/mips/generic/Kconfig" 1022 source "arch/mips/generic/Kconfig"
1021 source "arch/mips/ingenic/Kconfig" 1023 source "arch/mips/ingenic/Kconfig"
1022 source "arch/mips/jazz/Kconfig" 1024 source "arch/mips/jazz/Kconfig"
1023 source "arch/mips/lantiq/Kconfig" 1025 source "arch/mips/lantiq/Kconfig"
1024 source "arch/mips/mobileye/Kconfig" 1026 source "arch/mips/mobileye/Kconfig"
1025 source "arch/mips/pic32/Kconfig" 1027 source "arch/mips/pic32/Kconfig"
1026 source "arch/mips/ralink/Kconfig" 1028 source "arch/mips/ralink/Kconfig"
1027 source "arch/mips/sgi-ip27/Kconfig" 1029 source "arch/mips/sgi-ip27/Kconfig"
1028 source "arch/mips/sibyte/Kconfig" 1030 source "arch/mips/sibyte/Kconfig"
1029 source "arch/mips/txx9/Kconfig" 1031 source "arch/mips/txx9/Kconfig"
1030 source "arch/mips/cavium-octeon/Kconfig" 1032 source "arch/mips/cavium-octeon/Kconfig"
1031 source "arch/mips/loongson2ef/Kconfig" 1033 source "arch/mips/loongson2ef/Kconfig"
1032 source "arch/mips/loongson32/Kconfig" 1034 source "arch/mips/loongson32/Kconfig"
1033 source "arch/mips/loongson64/Kconfig" 1035 source "arch/mips/loongson64/Kconfig"
1034 1036
1035 endmenu 1037 endmenu
1036 1038
1037 config GENERIC_HWEIGHT 1039 config GENERIC_HWEIGHT
1038 bool 1040 bool
1039 default y 1041 default y
1040 1042
1041 config GENERIC_CALIBRATE_DELAY 1043 config GENERIC_CALIBRATE_DELAY
1042 bool 1044 bool
1043 default y 1045 default y
1044 1046
1045 config SCHED_OMIT_FRAME_POINTER 1047 config SCHED_OMIT_FRAME_POINTER
1046 bool 1048 bool
1047 default y 1049 default y
1048 1050
1049 # 1051 #
1050 # Select some configuration options automatic 1052 # Select some configuration options automatically based on user selections.
1051 # 1053 #
1052 config FW_ARC 1054 config FW_ARC
1053 bool 1055 bool
1054 1056
1055 config ARCH_MAY_HAVE_PC_FDC 1057 config ARCH_MAY_HAVE_PC_FDC
1056 bool 1058 bool
1057 1059
1058 config BOOT_RAW 1060 config BOOT_RAW
1059 bool 1061 bool
1060 1062
1061 config CEVT_BCM1480 1063 config CEVT_BCM1480
1062 bool 1064 bool
1063 1065
1064 config CEVT_DS1287 1066 config CEVT_DS1287
1065 bool 1067 bool
1066 1068
1067 config CEVT_GT641XX 1069 config CEVT_GT641XX
1068 bool 1070 bool
1069 1071
1070 config CEVT_R4K 1072 config CEVT_R4K
1071 bool 1073 bool
1072 1074
1073 config CEVT_SB1250 1075 config CEVT_SB1250
1074 bool 1076 bool
1075 1077
1076 config CEVT_TXX9 1078 config CEVT_TXX9
1077 bool 1079 bool
1078 1080
1079 config CSRC_BCM1480 1081 config CSRC_BCM1480
1080 bool 1082 bool
1081 1083
1082 config CSRC_IOASIC 1084 config CSRC_IOASIC
1083 bool 1085 bool
1084 1086
1085 config CSRC_R4K 1087 config CSRC_R4K
1086 select CLOCKSOURCE_WATCHDOG if CPU_FR 1088 select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1087 select HAVE_UNSTABLE_SCHED_CLOCK if S 1089 select HAVE_UNSTABLE_SCHED_CLOCK if SMP && 64BIT
1088 bool 1090 bool
1089 1091
1090 config CSRC_SB1250 1092 config CSRC_SB1250
1091 bool 1093 bool
1092 1094
1093 config MIPS_CLOCK_VSYSCALL 1095 config MIPS_CLOCK_VSYSCALL
1094 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1096 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1095 1097
1096 config GPIO_TXX9 1098 config GPIO_TXX9
1097 select GPIOLIB 1099 select GPIOLIB
1098 bool 1100 bool
1099 1101
1100 config FW_CFE 1102 config FW_CFE
1101 bool 1103 bool
1102 1104
1103 config ARCH_SUPPORTS_UPROBES 1105 config ARCH_SUPPORTS_UPROBES
1104 def_bool y 1106 def_bool y
1105 1107
1106 config DMA_NONCOHERENT 1108 config DMA_NONCOHERENT
1107 bool 1109 bool
1108 # 1110 #
1109 # MIPS allows mixing "slightly differ 1111 # MIPS allows mixing "slightly different" Cacheability and Coherency
1110 # Attribute bits. It is believed tha 1112 # Attribute bits. It is believed that the uncached access through
1111 # KSEG1 and the implementation specif 1113 # KSEG1 and the implementation specific "uncached accelerated" used
1112 # by pgprot_writcombine can be mixed, 1114 # by pgprot_writcombine can be mixed, and the latter sometimes provides
1113 # significant advantages. 1115 # significant advantages.
1114 # 1116 #
1115 select ARCH_HAS_SETUP_DMA_OPS 1117 select ARCH_HAS_SETUP_DMA_OPS
1116 select ARCH_HAS_DMA_WRITE_COMBINE 1118 select ARCH_HAS_DMA_WRITE_COMBINE
1117 select ARCH_HAS_DMA_PREP_COHERENT 1119 select ARCH_HAS_DMA_PREP_COHERENT
1118 select ARCH_HAS_SYNC_DMA_FOR_CPU 1120 select ARCH_HAS_SYNC_DMA_FOR_CPU
1119 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1121 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1120 select ARCH_HAS_DMA_SET_UNCACHED 1122 select ARCH_HAS_DMA_SET_UNCACHED
1121 select DMA_NONCOHERENT_MMAP 1123 select DMA_NONCOHERENT_MMAP
1122 select NEED_DMA_MAP_STATE 1124 select NEED_DMA_MAP_STATE
1123 1125
1124 config SYS_HAS_EARLY_PRINTK 1126 config SYS_HAS_EARLY_PRINTK
1125 bool 1127 bool
1126 1128
1127 config SYS_SUPPORTS_HOTPLUG_CPU 1129 config SYS_SUPPORTS_HOTPLUG_CPU
1128 bool 1130 bool
1129 1131
1130 config MIPS_BONITO64 1132 config MIPS_BONITO64
1131 bool 1133 bool
1132 1134
1133 config MIPS_MSC 1135 config MIPS_MSC
1134 bool 1136 bool
1135 1137
1136 config SYNC_R4K 1138 config SYNC_R4K
1137 bool 1139 bool
1138 1140
1139 config NO_IOPORT_MAP 1141 config NO_IOPORT_MAP
1140 def_bool n 1142 def_bool n
1141 1143
1142 config GENERIC_CSUM 1144 config GENERIC_CSUM
1143 def_bool CPU_NO_LOAD_STORE_LR 1145 def_bool CPU_NO_LOAD_STORE_LR
1144 1146
1145 config GENERIC_ISA_DMA 1147 config GENERIC_ISA_DMA
1146 bool 1148 bool
1147 select ZONE_DMA if GENERIC_ISA_DMA_SU 1149 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1148 select ISA_DMA_API 1150 select ISA_DMA_API
1149 1151
1150 config GENERIC_ISA_DMA_SUPPORT_BROKEN 1152 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1151 bool 1153 bool
1152 select GENERIC_ISA_DMA 1154 select GENERIC_ISA_DMA
1153 1155
1154 config HAVE_PLAT_DELAY 1156 config HAVE_PLAT_DELAY
1155 bool 1157 bool
1156 1158
1157 config HAVE_PLAT_FW_INIT_CMDLINE 1159 config HAVE_PLAT_FW_INIT_CMDLINE
1158 bool 1160 bool
1159 1161
1160 config HAVE_PLAT_MEMCPY 1162 config HAVE_PLAT_MEMCPY
1161 bool 1163 bool
1162 1164
1163 config ISA_DMA_API 1165 config ISA_DMA_API
1164 bool 1166 bool
1165 1167
1166 config SYS_SUPPORTS_RELOCATABLE 1168 config SYS_SUPPORTS_RELOCATABLE
1167 bool 1169 bool
1168 help 1170 help
1169 Selected if the platform supports r 1171 Selected if the platform supports relocating the kernel.
1170 The platform must provide plat_get_ 1172 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1171 to allow access to command line and 1173 to allow access to command line and entropy sources.
1172 1174
1173 # 1175 #
1174 # Endianness selection. Sufficiently obscure 1176 # Endianness selection. Sufficiently obscure so many users don't know what to
1175 # answer,so we try hard to limit the availabl 1177 # answer,so we try hard to limit the available choices. Also the use of a
1176 # choice statement should be more obvious to 1178 # choice statement should be more obvious to the user.
1177 # 1179 #
1178 choice 1180 choice
1179 prompt "Endianness selection" 1181 prompt "Endianness selection"
1180 help 1182 help
1181 Some MIPS machines can be configure 1183 Some MIPS machines can be configured for either little or big endian
1182 byte order. These modes require dif 1184 byte order. These modes require different kernels and a different
1183 Linux distribution. In general the 1185 Linux distribution. In general there is one preferred byteorder for a
1184 particular system but some systems 1186 particular system but some systems are just as commonly used in the
1185 one or the other endianness. 1187 one or the other endianness.
1186 1188
1187 config CPU_BIG_ENDIAN 1189 config CPU_BIG_ENDIAN
1188 bool "Big endian" 1190 bool "Big endian"
1189 depends on SYS_SUPPORTS_BIG_ENDIAN 1191 depends on SYS_SUPPORTS_BIG_ENDIAN
1190 1192
1191 config CPU_LITTLE_ENDIAN 1193 config CPU_LITTLE_ENDIAN
1192 bool "Little endian" 1194 bool "Little endian"
1193 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1195 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1194 1196
1195 endchoice 1197 endchoice
1196 1198
1197 config EXPORT_UASM 1199 config EXPORT_UASM
1198 bool 1200 bool
1199 1201
1200 config SYS_SUPPORTS_APM_EMULATION 1202 config SYS_SUPPORTS_APM_EMULATION
1201 bool 1203 bool
1202 1204
1203 config SYS_SUPPORTS_BIG_ENDIAN 1205 config SYS_SUPPORTS_BIG_ENDIAN
1204 bool 1206 bool
1205 1207
1206 config SYS_SUPPORTS_LITTLE_ENDIAN 1208 config SYS_SUPPORTS_LITTLE_ENDIAN
1207 bool 1209 bool
1208 1210
1209 config MIPS_HUGE_TLB_SUPPORT 1211 config MIPS_HUGE_TLB_SUPPORT
1210 def_bool HUGETLB_PAGE || TRANSPARENT_ 1212 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1211 1213
1212 config IRQ_TXX9 1214 config IRQ_TXX9
1213 bool 1215 bool
1214 1216
1215 config IRQ_GT641XX 1217 config IRQ_GT641XX
1216 bool 1218 bool
1217 1219
1218 config PCI_GT64XXX_PCI0 1220 config PCI_GT64XXX_PCI0
1219 bool 1221 bool
1220 1222
1221 config PCI_XTALK_BRIDGE 1223 config PCI_XTALK_BRIDGE
1222 bool 1224 bool
1223 1225
1224 config NO_EXCEPT_FILL 1226 config NO_EXCEPT_FILL
1225 bool 1227 bool
1226 1228
1227 config MIPS_SPRAM 1229 config MIPS_SPRAM
1228 bool 1230 bool
1229 1231
1230 config SWAP_IO_SPACE 1232 config SWAP_IO_SPACE
1231 bool 1233 bool
1232 1234
1233 config SGI_HAS_INDYDOG 1235 config SGI_HAS_INDYDOG
1234 bool 1236 bool
1235 1237
1236 config SGI_HAS_HAL2 1238 config SGI_HAS_HAL2
1237 bool 1239 bool
1238 1240
1239 config SGI_HAS_SEEQ 1241 config SGI_HAS_SEEQ
1240 bool 1242 bool
1241 1243
1242 config SGI_HAS_WD93 1244 config SGI_HAS_WD93
1243 bool 1245 bool
1244 1246
1245 config SGI_HAS_ZILOG 1247 config SGI_HAS_ZILOG
1246 bool 1248 bool
1247 1249
1248 config SGI_HAS_I8042 1250 config SGI_HAS_I8042
1249 bool 1251 bool
1250 1252
1251 config DEFAULT_SGI_PARTITION 1253 config DEFAULT_SGI_PARTITION
1252 bool 1254 bool
1253 1255
1254 config FW_ARC32 1256 config FW_ARC32
1255 bool 1257 bool
1256 1258
1257 config FW_SNIPROM 1259 config FW_SNIPROM
1258 bool 1260 bool
1259 1261
1260 config BOOT_ELF32 1262 config BOOT_ELF32
1261 bool 1263 bool
1262 1264
1263 config MIPS_L1_CACHE_SHIFT_4 1265 config MIPS_L1_CACHE_SHIFT_4
1264 bool 1266 bool
1265 1267
1266 config MIPS_L1_CACHE_SHIFT_5 1268 config MIPS_L1_CACHE_SHIFT_5
1267 bool 1269 bool
1268 1270
1269 config MIPS_L1_CACHE_SHIFT_6 1271 config MIPS_L1_CACHE_SHIFT_6
1270 bool 1272 bool
1271 1273
1272 config MIPS_L1_CACHE_SHIFT_7 1274 config MIPS_L1_CACHE_SHIFT_7
1273 bool 1275 bool
1274 1276
1275 config MIPS_L1_CACHE_SHIFT 1277 config MIPS_L1_CACHE_SHIFT
1276 int 1278 int
1277 default "7" if MIPS_L1_CACHE_SHIFT_7 1279 default "7" if MIPS_L1_CACHE_SHIFT_7
1278 default "6" if MIPS_L1_CACHE_SHIFT_6 1280 default "6" if MIPS_L1_CACHE_SHIFT_6
1279 default "5" if MIPS_L1_CACHE_SHIFT_5 1281 default "5" if MIPS_L1_CACHE_SHIFT_5
1280 default "4" if MIPS_L1_CACHE_SHIFT_4 1282 default "4" if MIPS_L1_CACHE_SHIFT_4
1281 default "5" 1283 default "5"
1282 1284
1283 config ARC_CMDLINE_ONLY 1285 config ARC_CMDLINE_ONLY
1284 bool 1286 bool
1285 1287
1286 config ARC_CONSOLE 1288 config ARC_CONSOLE
1287 bool "ARC console support" 1289 bool "ARC console support"
1288 depends on SGI_IP22 || SGI_IP28 || (S 1290 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1289 1291
1290 config ARC_MEMORY 1292 config ARC_MEMORY
1291 bool 1293 bool
1292 1294
1293 config ARC_PROMLIB 1295 config ARC_PROMLIB
1294 bool 1296 bool
1295 1297
1296 config FW_ARC64 1298 config FW_ARC64
1297 bool 1299 bool
1298 1300
1299 config BOOT_ELF64 1301 config BOOT_ELF64
1300 bool 1302 bool
1301 1303
1302 menu "CPU selection" 1304 menu "CPU selection"
1303 1305
1304 choice 1306 choice
1305 prompt "CPU type" 1307 prompt "CPU type"
1306 default CPU_R4X00 1308 default CPU_R4X00
1307 1309
1308 config CPU_LOONGSON64 1310 config CPU_LOONGSON64
1309 bool "Loongson 64-bit CPU" 1311 bool "Loongson 64-bit CPU"
1310 depends on SYS_HAS_CPU_LOONGSON64 1312 depends on SYS_HAS_CPU_LOONGSON64
1311 select ARCH_HAS_PHYS_TO_DMA 1313 select ARCH_HAS_PHYS_TO_DMA
1312 select CPU_MIPSR2 1314 select CPU_MIPSR2
1313 select CPU_HAS_PREFETCH 1315 select CPU_HAS_PREFETCH
1314 select CPU_SUPPORTS_64BIT_KERNEL 1316 select CPU_SUPPORTS_64BIT_KERNEL
1315 select CPU_SUPPORTS_HIGHMEM 1317 select CPU_SUPPORTS_HIGHMEM
1316 select CPU_SUPPORTS_HUGEPAGES 1318 select CPU_SUPPORTS_HUGEPAGES
1317 select CPU_SUPPORTS_MSA 1319 select CPU_SUPPORTS_MSA
1318 select CPU_SUPPORTS_VZ 1320 select CPU_SUPPORTS_VZ
1319 select CPU_DIEI_BROKEN if !LOONGSON3_ 1321 select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1320 select CPU_MIPSR2_IRQ_VI 1322 select CPU_MIPSR2_IRQ_VI
1321 select DMA_NONCOHERENT 1323 select DMA_NONCOHERENT
1322 select WEAK_ORDERING 1324 select WEAK_ORDERING
1323 select WEAK_REORDERING_BEYOND_LLSC 1325 select WEAK_REORDERING_BEYOND_LLSC
1324 select MIPS_ASID_BITS_VARIABLE 1326 select MIPS_ASID_BITS_VARIABLE
1325 select MIPS_PGD_C0_CONTEXT 1327 select MIPS_PGD_C0_CONTEXT
1326 select MIPS_L1_CACHE_SHIFT_6 1328 select MIPS_L1_CACHE_SHIFT_6
1327 select MIPS_FP_SUPPORT 1329 select MIPS_FP_SUPPORT
1328 select GPIOLIB 1330 select GPIOLIB
1329 select SWIOTLB 1331 select SWIOTLB
1330 help 1332 help
1331 The Loongson GSx64(GS264/GS464/GS46 1333 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1332 cores implements the MIPS64R2 instr 1334 cores implements the MIPS64R2 instruction set with many extensions,
1333 including most 64-bit Loongson-2 (2 1335 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1334 3B1000, 3B1500, 3A2000, 3A3000 and 1336 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1335 Loongson-2E/2F is not covered here 1337 Loongson-2E/2F is not covered here and will be removed in future.
1336 1338
1337 config CPU_LOONGSON2E 1339 config CPU_LOONGSON2E
1338 bool "Loongson 2E" 1340 bool "Loongson 2E"
1339 depends on SYS_HAS_CPU_LOONGSON2E 1341 depends on SYS_HAS_CPU_LOONGSON2E
1340 select CPU_LOONGSON2EF 1342 select CPU_LOONGSON2EF
1341 help 1343 help
1342 The Loongson 2E processor implement 1344 The Loongson 2E processor implements the MIPS III instruction set
1343 with many extensions. 1345 with many extensions.
1344 1346
1345 It has an internal FPGA northbridge 1347 It has an internal FPGA northbridge, which is compatible to
1346 bonito64. 1348 bonito64.
1347 1349
1348 config CPU_LOONGSON2F 1350 config CPU_LOONGSON2F
1349 bool "Loongson 2F" 1351 bool "Loongson 2F"
1350 depends on SYS_HAS_CPU_LOONGSON2F 1352 depends on SYS_HAS_CPU_LOONGSON2F
1351 select CPU_LOONGSON2EF 1353 select CPU_LOONGSON2EF
1352 help 1354 help
1353 The Loongson 2F processor implement 1355 The Loongson 2F processor implements the MIPS III instruction set
1354 with many extensions. 1356 with many extensions.
1355 1357
1356 Loongson2F have built-in DDR2 and P 1358 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1357 have a similar programming interfac 1359 have a similar programming interface with FPGA northbridge used in
1358 Loongson2E. 1360 Loongson2E.
1359 1361
1360 config CPU_LOONGSON1B 1362 config CPU_LOONGSON1B
1361 bool "Loongson 1B" 1363 bool "Loongson 1B"
1362 depends on SYS_HAS_CPU_LOONGSON1B 1364 depends on SYS_HAS_CPU_LOONGSON1B
1363 select CPU_LOONGSON32 1365 select CPU_LOONGSON32
1364 select LEDS_GPIO_REGISTER 1366 select LEDS_GPIO_REGISTER
1365 help 1367 help
1366 The Loongson 1B is a 32-bit SoC, wh 1368 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1367 Release 1 instruction set and part 1369 Release 1 instruction set and part of the MIPS32 Release 2
1368 instruction set. 1370 instruction set.
1369 1371
1370 config CPU_LOONGSON1C 1372 config CPU_LOONGSON1C
1371 bool "Loongson 1C" 1373 bool "Loongson 1C"
1372 depends on SYS_HAS_CPU_LOONGSON1C 1374 depends on SYS_HAS_CPU_LOONGSON1C
1373 select CPU_LOONGSON32 1375 select CPU_LOONGSON32
1374 select LEDS_GPIO_REGISTER 1376 select LEDS_GPIO_REGISTER
1375 help 1377 help
1376 The Loongson 1C is a 32-bit SoC, wh 1378 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1377 Release 1 instruction set and part 1379 Release 1 instruction set and part of the MIPS32 Release 2
1378 instruction set. 1380 instruction set.
1379 1381
1380 config CPU_MIPS32_R1 1382 config CPU_MIPS32_R1
1381 bool "MIPS32 Release 1" 1383 bool "MIPS32 Release 1"
1382 depends on SYS_HAS_CPU_MIPS32_R1 1384 depends on SYS_HAS_CPU_MIPS32_R1
1383 select CPU_HAS_PREFETCH 1385 select CPU_HAS_PREFETCH
1384 select CPU_SUPPORTS_32BIT_KERNEL 1386 select CPU_SUPPORTS_32BIT_KERNEL
1385 select CPU_SUPPORTS_HIGHMEM 1387 select CPU_SUPPORTS_HIGHMEM
1386 help 1388 help
1387 Choose this option to build a kerne 1389 Choose this option to build a kernel for release 1 or later of the
1388 MIPS32 architecture. Most modern e 1390 MIPS32 architecture. Most modern embedded systems with a 32-bit
1389 MIPS processor are based on a MIPS3 1391 MIPS processor are based on a MIPS32 processor. If you know the
1390 specific type of processor in your 1392 specific type of processor in your system, choose those that one
1391 otherwise CPU_MIPS32_R1 is a safe b 1393 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1392 Release 2 of the MIPS32 architectur 1394 Release 2 of the MIPS32 architecture is available since several
1393 years so chances are you even have 1395 years so chances are you even have a MIPS32 Release 2 processor
1394 in which case you should choose CPU 1396 in which case you should choose CPU_MIPS32_R2 instead for better
1395 performance. 1397 performance.
1396 1398
1397 config CPU_MIPS32_R2 1399 config CPU_MIPS32_R2
1398 bool "MIPS32 Release 2" 1400 bool "MIPS32 Release 2"
1399 depends on SYS_HAS_CPU_MIPS32_R2 1401 depends on SYS_HAS_CPU_MIPS32_R2
1400 select CPU_HAS_PREFETCH 1402 select CPU_HAS_PREFETCH
1401 select CPU_SUPPORTS_32BIT_KERNEL 1403 select CPU_SUPPORTS_32BIT_KERNEL
1402 select CPU_SUPPORTS_HIGHMEM 1404 select CPU_SUPPORTS_HIGHMEM
1403 select CPU_SUPPORTS_MSA 1405 select CPU_SUPPORTS_MSA
1404 help 1406 help
1405 Choose this option to build a kerne 1407 Choose this option to build a kernel for release 2 or later of the
1406 MIPS32 architecture. Most modern e 1408 MIPS32 architecture. Most modern embedded systems with a 32-bit
1407 MIPS processor are based on a MIPS3 1409 MIPS processor are based on a MIPS32 processor. If you know the
1408 specific type of processor in your 1410 specific type of processor in your system, choose those that one
1409 otherwise CPU_MIPS32_R1 is a safe b 1411 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1410 1412
1411 config CPU_MIPS32_R5 1413 config CPU_MIPS32_R5
1412 bool "MIPS32 Release 5" 1414 bool "MIPS32 Release 5"
1413 depends on SYS_HAS_CPU_MIPS32_R5 1415 depends on SYS_HAS_CPU_MIPS32_R5
1414 select CPU_HAS_PREFETCH 1416 select CPU_HAS_PREFETCH
1415 select CPU_SUPPORTS_32BIT_KERNEL 1417 select CPU_SUPPORTS_32BIT_KERNEL
1416 select CPU_SUPPORTS_HIGHMEM 1418 select CPU_SUPPORTS_HIGHMEM
1417 select CPU_SUPPORTS_MSA 1419 select CPU_SUPPORTS_MSA
1418 select CPU_SUPPORTS_VZ 1420 select CPU_SUPPORTS_VZ
1419 select MIPS_O32_FP64_SUPPORT 1421 select MIPS_O32_FP64_SUPPORT
1420 help 1422 help
1421 Choose this option to build a kerne 1423 Choose this option to build a kernel for release 5 or later of the
1422 MIPS32 architecture. New MIPS proc 1424 MIPS32 architecture. New MIPS processors, starting with the Warrior
1423 family, are based on a MIPS32r5 pro 1425 family, are based on a MIPS32r5 processor. If you own an older
1424 processor, you probably need to sel 1426 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1425 1427
1426 config CPU_MIPS32_R6 1428 config CPU_MIPS32_R6
1427 bool "MIPS32 Release 6" 1429 bool "MIPS32 Release 6"
1428 depends on SYS_HAS_CPU_MIPS32_R6 1430 depends on SYS_HAS_CPU_MIPS32_R6
1429 select CPU_HAS_PREFETCH 1431 select CPU_HAS_PREFETCH
1430 select CPU_NO_LOAD_STORE_LR 1432 select CPU_NO_LOAD_STORE_LR
1431 select CPU_SUPPORTS_32BIT_KERNEL 1433 select CPU_SUPPORTS_32BIT_KERNEL
1432 select CPU_SUPPORTS_HIGHMEM 1434 select CPU_SUPPORTS_HIGHMEM
1433 select CPU_SUPPORTS_MSA 1435 select CPU_SUPPORTS_MSA
1434 select CPU_SUPPORTS_VZ 1436 select CPU_SUPPORTS_VZ
1435 select MIPS_O32_FP64_SUPPORT 1437 select MIPS_O32_FP64_SUPPORT
1436 help 1438 help
1437 Choose this option to build a kerne 1439 Choose this option to build a kernel for release 6 or later of the
1438 MIPS32 architecture. New MIPS proc 1440 MIPS32 architecture. New MIPS processors, starting with the Warrior
1439 family, are based on a MIPS32r6 pro 1441 family, are based on a MIPS32r6 processor. If you own an older
1440 processor, you probably need to sel 1442 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1441 1443
1442 config CPU_MIPS64_R1 1444 config CPU_MIPS64_R1
1443 bool "MIPS64 Release 1" 1445 bool "MIPS64 Release 1"
1444 depends on SYS_HAS_CPU_MIPS64_R1 1446 depends on SYS_HAS_CPU_MIPS64_R1
1445 select CPU_HAS_PREFETCH 1447 select CPU_HAS_PREFETCH
1446 select CPU_SUPPORTS_32BIT_KERNEL 1448 select CPU_SUPPORTS_32BIT_KERNEL
1447 select CPU_SUPPORTS_64BIT_KERNEL 1449 select CPU_SUPPORTS_64BIT_KERNEL
1448 select CPU_SUPPORTS_HIGHMEM 1450 select CPU_SUPPORTS_HIGHMEM
1449 select CPU_SUPPORTS_HUGEPAGES 1451 select CPU_SUPPORTS_HUGEPAGES
1450 help 1452 help
1451 Choose this option to build a kerne 1453 Choose this option to build a kernel for release 1 or later of the
1452 MIPS64 architecture. Many modern e 1454 MIPS64 architecture. Many modern embedded systems with a 64-bit
1453 MIPS processor are based on a MIPS6 1455 MIPS processor are based on a MIPS64 processor. If you know the
1454 specific type of processor in your 1456 specific type of processor in your system, choose those that one
1455 otherwise CPU_MIPS64_R1 is a safe b 1457 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1456 Release 2 of the MIPS64 architectur 1458 Release 2 of the MIPS64 architecture is available since several
1457 years so chances are you even have 1459 years so chances are you even have a MIPS64 Release 2 processor
1458 in which case you should choose CPU 1460 in which case you should choose CPU_MIPS64_R2 instead for better
1459 performance. 1461 performance.
1460 1462
1461 config CPU_MIPS64_R2 1463 config CPU_MIPS64_R2
1462 bool "MIPS64 Release 2" 1464 bool "MIPS64 Release 2"
1463 depends on SYS_HAS_CPU_MIPS64_R2 1465 depends on SYS_HAS_CPU_MIPS64_R2
1464 select CPU_HAS_PREFETCH 1466 select CPU_HAS_PREFETCH
1465 select CPU_SUPPORTS_32BIT_KERNEL 1467 select CPU_SUPPORTS_32BIT_KERNEL
1466 select CPU_SUPPORTS_64BIT_KERNEL 1468 select CPU_SUPPORTS_64BIT_KERNEL
1467 select CPU_SUPPORTS_HIGHMEM 1469 select CPU_SUPPORTS_HIGHMEM
1468 select CPU_SUPPORTS_HUGEPAGES 1470 select CPU_SUPPORTS_HUGEPAGES
1469 select CPU_SUPPORTS_MSA 1471 select CPU_SUPPORTS_MSA
1470 help 1472 help
1471 Choose this option to build a kerne 1473 Choose this option to build a kernel for release 2 or later of the
1472 MIPS64 architecture. Many modern e 1474 MIPS64 architecture. Many modern embedded systems with a 64-bit
1473 MIPS processor are based on a MIPS6 1475 MIPS processor are based on a MIPS64 processor. If you know the
1474 specific type of processor in your 1476 specific type of processor in your system, choose those that one
1475 otherwise CPU_MIPS64_R1 is a safe b 1477 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1476 1478
1477 config CPU_MIPS64_R5 1479 config CPU_MIPS64_R5
1478 bool "MIPS64 Release 5" 1480 bool "MIPS64 Release 5"
1479 depends on SYS_HAS_CPU_MIPS64_R5 1481 depends on SYS_HAS_CPU_MIPS64_R5
1480 select CPU_HAS_PREFETCH 1482 select CPU_HAS_PREFETCH
1481 select CPU_SUPPORTS_32BIT_KERNEL 1483 select CPU_SUPPORTS_32BIT_KERNEL
1482 select CPU_SUPPORTS_64BIT_KERNEL 1484 select CPU_SUPPORTS_64BIT_KERNEL
1483 select CPU_SUPPORTS_HIGHMEM 1485 select CPU_SUPPORTS_HIGHMEM
1484 select CPU_SUPPORTS_HUGEPAGES 1486 select CPU_SUPPORTS_HUGEPAGES
1485 select CPU_SUPPORTS_MSA 1487 select CPU_SUPPORTS_MSA
1486 select MIPS_O32_FP64_SUPPORT if 32BIT 1488 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1487 select CPU_SUPPORTS_VZ 1489 select CPU_SUPPORTS_VZ
1488 help 1490 help
1489 Choose this option to build a kerne 1491 Choose this option to build a kernel for release 5 or later of the
1490 MIPS64 architecture. This is a int 1492 MIPS64 architecture. This is a intermediate MIPS architecture
1491 release partly implementing release 1493 release partly implementing release 6 features. Though there is no
1492 any hardware known to be based on t 1494 any hardware known to be based on this release.
1493 1495
1494 config CPU_MIPS64_R6 1496 config CPU_MIPS64_R6
1495 bool "MIPS64 Release 6" 1497 bool "MIPS64 Release 6"
1496 depends on SYS_HAS_CPU_MIPS64_R6 1498 depends on SYS_HAS_CPU_MIPS64_R6
1497 select CPU_HAS_PREFETCH 1499 select CPU_HAS_PREFETCH
1498 select CPU_NO_LOAD_STORE_LR 1500 select CPU_NO_LOAD_STORE_LR
1499 select CPU_SUPPORTS_32BIT_KERNEL 1501 select CPU_SUPPORTS_32BIT_KERNEL
1500 select CPU_SUPPORTS_64BIT_KERNEL 1502 select CPU_SUPPORTS_64BIT_KERNEL
1501 select CPU_SUPPORTS_HIGHMEM 1503 select CPU_SUPPORTS_HIGHMEM
1502 select CPU_SUPPORTS_HUGEPAGES 1504 select CPU_SUPPORTS_HUGEPAGES
1503 select CPU_SUPPORTS_MSA 1505 select CPU_SUPPORTS_MSA
1504 select MIPS_O32_FP64_SUPPORT if 32BIT 1506 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1505 select CPU_SUPPORTS_VZ 1507 select CPU_SUPPORTS_VZ
1506 help 1508 help
1507 Choose this option to build a kerne 1509 Choose this option to build a kernel for release 6 or later of the
1508 MIPS64 architecture. New MIPS proc 1510 MIPS64 architecture. New MIPS processors, starting with the Warrior
1509 family, are based on a MIPS64r6 pro 1511 family, are based on a MIPS64r6 processor. If you own an older
1510 processor, you probably need to sel 1512 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1511 1513
1512 config CPU_P5600 1514 config CPU_P5600
1513 bool "MIPS Warrior P5600" 1515 bool "MIPS Warrior P5600"
1514 depends on SYS_HAS_CPU_P5600 1516 depends on SYS_HAS_CPU_P5600
1515 select CPU_HAS_PREFETCH 1517 select CPU_HAS_PREFETCH
1516 select CPU_SUPPORTS_32BIT_KERNEL 1518 select CPU_SUPPORTS_32BIT_KERNEL
1517 select CPU_SUPPORTS_HIGHMEM 1519 select CPU_SUPPORTS_HIGHMEM
1518 select CPU_SUPPORTS_MSA 1520 select CPU_SUPPORTS_MSA
1519 select CPU_SUPPORTS_CPUFREQ 1521 select CPU_SUPPORTS_CPUFREQ
1520 select CPU_SUPPORTS_VZ 1522 select CPU_SUPPORTS_VZ
1521 select CPU_MIPSR2_IRQ_VI 1523 select CPU_MIPSR2_IRQ_VI
1522 select CPU_MIPSR2_IRQ_EI 1524 select CPU_MIPSR2_IRQ_EI
1523 select MIPS_O32_FP64_SUPPORT 1525 select MIPS_O32_FP64_SUPPORT
1524 help 1526 help
1525 Choose this option to build a kerne 1527 Choose this option to build a kernel for MIPS Warrior P5600 CPU.
1526 It's based on MIPS32r5 ISA with XPA 1528 It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
1527 MMU with two-levels TLB, UCA, MSA, 1529 MMU with two-levels TLB, UCA, MSA, MDU core level features and system
1528 level features like up to six P5600 1530 level features like up to six P5600 calculation cores, CM2 with L2
1529 cache, IOCU/IOMMU (though might be 1531 cache, IOCU/IOMMU (though might be unused depending on the system-
1530 specific IP core configuration), GI 1532 specific IP core configuration), GIC, CPC, virtualisation module,
1531 eJTAG and PDtrace. 1533 eJTAG and PDtrace.
1532 1534
1533 config CPU_R3000 1535 config CPU_R3000
1534 bool "R3000" 1536 bool "R3000"
1535 depends on SYS_HAS_CPU_R3000 1537 depends on SYS_HAS_CPU_R3000
1536 select CPU_HAS_WB 1538 select CPU_HAS_WB
1537 select CPU_R3K_TLB 1539 select CPU_R3K_TLB
1538 select CPU_SUPPORTS_32BIT_KERNEL 1540 select CPU_SUPPORTS_32BIT_KERNEL
1539 select CPU_SUPPORTS_HIGHMEM 1541 select CPU_SUPPORTS_HIGHMEM
1540 help 1542 help
1541 Please make sure to pick the right 1543 Please make sure to pick the right CPU type. Linux/MIPS is not
1542 designed to be generic, i.e. Kernel 1544 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1543 *not* work on R4000 machines and vi 1545 *not* work on R4000 machines and vice versa. However, since most
1544 of the supported machines have an R 1546 of the supported machines have an R4000 (or similar) CPU, R4x00
1545 might be a safe bet. If the result 1547 might be a safe bet. If the resulting kernel does not work,
1546 try to recompile with R3000. 1548 try to recompile with R3000.
1547 1549
1548 config CPU_R4300 1550 config CPU_R4300
1549 bool "R4300" 1551 bool "R4300"
1550 depends on SYS_HAS_CPU_R4300 1552 depends on SYS_HAS_CPU_R4300
1551 select CPU_SUPPORTS_32BIT_KERNEL 1553 select CPU_SUPPORTS_32BIT_KERNEL
1552 select CPU_SUPPORTS_64BIT_KERNEL 1554 select CPU_SUPPORTS_64BIT_KERNEL
1553 help 1555 help
1554 MIPS Technologies R4300-series proc 1556 MIPS Technologies R4300-series processors.
1555 1557
1556 config CPU_R4X00 1558 config CPU_R4X00
1557 bool "R4x00" 1559 bool "R4x00"
1558 depends on SYS_HAS_CPU_R4X00 1560 depends on SYS_HAS_CPU_R4X00
1559 select CPU_SUPPORTS_32BIT_KERNEL 1561 select CPU_SUPPORTS_32BIT_KERNEL
1560 select CPU_SUPPORTS_64BIT_KERNEL 1562 select CPU_SUPPORTS_64BIT_KERNEL
1561 select CPU_SUPPORTS_HUGEPAGES 1563 select CPU_SUPPORTS_HUGEPAGES
1562 help 1564 help
1563 MIPS Technologies R4000-series proc 1565 MIPS Technologies R4000-series processors other than 4300, including
1564 the R4000, R4400, R4600, and 4700. 1566 the R4000, R4400, R4600, and 4700.
1565 1567
1566 config CPU_TX49XX 1568 config CPU_TX49XX
1567 bool "R49XX" 1569 bool "R49XX"
1568 depends on SYS_HAS_CPU_TX49XX 1570 depends on SYS_HAS_CPU_TX49XX
1569 select CPU_HAS_PREFETCH 1571 select CPU_HAS_PREFETCH
1570 select CPU_SUPPORTS_32BIT_KERNEL 1572 select CPU_SUPPORTS_32BIT_KERNEL
1571 select CPU_SUPPORTS_64BIT_KERNEL 1573 select CPU_SUPPORTS_64BIT_KERNEL
1572 select CPU_SUPPORTS_HUGEPAGES 1574 select CPU_SUPPORTS_HUGEPAGES
1573 1575
1574 config CPU_R5000 1576 config CPU_R5000
1575 bool "R5000" 1577 bool "R5000"
1576 depends on SYS_HAS_CPU_R5000 1578 depends on SYS_HAS_CPU_R5000
1577 select CPU_SUPPORTS_32BIT_KERNEL 1579 select CPU_SUPPORTS_32BIT_KERNEL
1578 select CPU_SUPPORTS_64BIT_KERNEL 1580 select CPU_SUPPORTS_64BIT_KERNEL
1579 select CPU_SUPPORTS_HUGEPAGES 1581 select CPU_SUPPORTS_HUGEPAGES
1580 help 1582 help
1581 MIPS Technologies R5000-series proc 1583 MIPS Technologies R5000-series processors other than the Nevada.
1582 1584
1583 config CPU_R5500 1585 config CPU_R5500
1584 bool "R5500" 1586 bool "R5500"
1585 depends on SYS_HAS_CPU_R5500 1587 depends on SYS_HAS_CPU_R5500
1586 select CPU_SUPPORTS_32BIT_KERNEL 1588 select CPU_SUPPORTS_32BIT_KERNEL
1587 select CPU_SUPPORTS_64BIT_KERNEL 1589 select CPU_SUPPORTS_64BIT_KERNEL
1588 select CPU_SUPPORTS_HUGEPAGES 1590 select CPU_SUPPORTS_HUGEPAGES
1589 help 1591 help
1590 NEC VR5500 and VR5500A series proce 1592 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1591 instruction set. 1593 instruction set.
1592 1594
1593 config CPU_NEVADA 1595 config CPU_NEVADA
1594 bool "RM52xx" 1596 bool "RM52xx"
1595 depends on SYS_HAS_CPU_NEVADA 1597 depends on SYS_HAS_CPU_NEVADA
1596 select CPU_SUPPORTS_32BIT_KERNEL 1598 select CPU_SUPPORTS_32BIT_KERNEL
1597 select CPU_SUPPORTS_64BIT_KERNEL 1599 select CPU_SUPPORTS_64BIT_KERNEL
1598 select CPU_SUPPORTS_HUGEPAGES 1600 select CPU_SUPPORTS_HUGEPAGES
1599 help 1601 help
1600 QED / PMC-Sierra RM52xx-series ("Ne 1602 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1601 1603
1602 config CPU_R10000 1604 config CPU_R10000
1603 bool "R10000" 1605 bool "R10000"
1604 depends on SYS_HAS_CPU_R10000 1606 depends on SYS_HAS_CPU_R10000
1605 select CPU_HAS_PREFETCH 1607 select CPU_HAS_PREFETCH
1606 select CPU_SUPPORTS_32BIT_KERNEL 1608 select CPU_SUPPORTS_32BIT_KERNEL
1607 select CPU_SUPPORTS_64BIT_KERNEL 1609 select CPU_SUPPORTS_64BIT_KERNEL
1608 select CPU_SUPPORTS_HIGHMEM 1610 select CPU_SUPPORTS_HIGHMEM
1609 select CPU_SUPPORTS_HUGEPAGES 1611 select CPU_SUPPORTS_HUGEPAGES
1610 help 1612 help
1611 MIPS Technologies R10000-series pro 1613 MIPS Technologies R10000-series processors.
1612 1614
1613 config CPU_RM7000 1615 config CPU_RM7000
1614 bool "RM7000" 1616 bool "RM7000"
1615 depends on SYS_HAS_CPU_RM7000 1617 depends on SYS_HAS_CPU_RM7000
1616 select CPU_HAS_PREFETCH 1618 select CPU_HAS_PREFETCH
1617 select CPU_SUPPORTS_32BIT_KERNEL 1619 select CPU_SUPPORTS_32BIT_KERNEL
1618 select CPU_SUPPORTS_64BIT_KERNEL 1620 select CPU_SUPPORTS_64BIT_KERNEL
1619 select CPU_SUPPORTS_HIGHMEM 1621 select CPU_SUPPORTS_HIGHMEM
1620 select CPU_SUPPORTS_HUGEPAGES 1622 select CPU_SUPPORTS_HUGEPAGES
1621 1623
1622 config CPU_SB1 1624 config CPU_SB1
1623 bool "SB1" 1625 bool "SB1"
1624 depends on SYS_HAS_CPU_SB1 1626 depends on SYS_HAS_CPU_SB1
1625 select CPU_SUPPORTS_32BIT_KERNEL 1627 select CPU_SUPPORTS_32BIT_KERNEL
1626 select CPU_SUPPORTS_64BIT_KERNEL 1628 select CPU_SUPPORTS_64BIT_KERNEL
1627 select CPU_SUPPORTS_HIGHMEM 1629 select CPU_SUPPORTS_HIGHMEM
1628 select CPU_SUPPORTS_HUGEPAGES 1630 select CPU_SUPPORTS_HUGEPAGES
1629 select WEAK_ORDERING 1631 select WEAK_ORDERING
1630 1632
1631 config CPU_CAVIUM_OCTEON 1633 config CPU_CAVIUM_OCTEON
1632 bool "Cavium Octeon processor" 1634 bool "Cavium Octeon processor"
1633 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1635 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1634 select CPU_HAS_PREFETCH 1636 select CPU_HAS_PREFETCH
1635 select CPU_SUPPORTS_64BIT_KERNEL 1637 select CPU_SUPPORTS_64BIT_KERNEL
1636 select HAVE_PAGE_SIZE_8KB if !MIPS_VA 1638 select HAVE_PAGE_SIZE_8KB if !MIPS_VA_BITS_48
1637 select HAVE_PAGE_SIZE_32KB if !MIPS_V 1639 select HAVE_PAGE_SIZE_32KB if !MIPS_VA_BITS_48
1638 select WEAK_ORDERING 1640 select WEAK_ORDERING
1639 select CPU_SUPPORTS_HIGHMEM 1641 select CPU_SUPPORTS_HIGHMEM
1640 select CPU_SUPPORTS_HUGEPAGES 1642 select CPU_SUPPORTS_HUGEPAGES
1641 select USB_EHCI_BIG_ENDIAN_MMIO if CP 1643 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1642 select USB_OHCI_BIG_ENDIAN_MMIO if CP 1644 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1643 select MIPS_L1_CACHE_SHIFT_7 1645 select MIPS_L1_CACHE_SHIFT_7
1644 select CPU_SUPPORTS_VZ 1646 select CPU_SUPPORTS_VZ
1645 help 1647 help
1646 The Cavium Octeon processor is a hi 1648 The Cavium Octeon processor is a highly integrated chip containing
1647 many ethernet hardware widgets for 1649 many ethernet hardware widgets for networking tasks. The processor
1648 can have up to 16 Mips64v2 cores an 1650 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1649 Full details can be found at http:/ 1651 Full details can be found at http://www.caviumnetworks.com.
1650 1652
1651 config CPU_BMIPS 1653 config CPU_BMIPS
1652 bool "Broadcom BMIPS" 1654 bool "Broadcom BMIPS"
1653 depends on SYS_HAS_CPU_BMIPS 1655 depends on SYS_HAS_CPU_BMIPS
1654 select CPU_MIPS32 1656 select CPU_MIPS32
1655 select CPU_BMIPS32_3300 if SYS_HAS_CP 1657 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1656 select CPU_BMIPS4350 if SYS_HAS_CPU_B 1658 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1657 select CPU_BMIPS4380 if SYS_HAS_CPU_B 1659 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1658 select CPU_BMIPS5000 if SYS_HAS_CPU_B 1660 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1659 select CPU_SUPPORTS_32BIT_KERNEL 1661 select CPU_SUPPORTS_32BIT_KERNEL
1660 select DMA_NONCOHERENT 1662 select DMA_NONCOHERENT
1661 select IRQ_MIPS_CPU 1663 select IRQ_MIPS_CPU
1662 select SWAP_IO_SPACE 1664 select SWAP_IO_SPACE
1663 select WEAK_ORDERING 1665 select WEAK_ORDERING
1664 select CPU_SUPPORTS_HIGHMEM 1666 select CPU_SUPPORTS_HIGHMEM
1665 select CPU_HAS_PREFETCH 1667 select CPU_HAS_PREFETCH
1666 select CPU_SUPPORTS_CPUFREQ 1668 select CPU_SUPPORTS_CPUFREQ
1667 select MIPS_EXTERNAL_TIMER 1669 select MIPS_EXTERNAL_TIMER
1668 select GENERIC_IRQ_MIGRATION if HOTPL 1670 select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
1669 help 1671 help
1670 Support for BMIPS32/3300/4350/4380 1672 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1671 1673
1672 endchoice 1674 endchoice
1673 1675
1674 config LOONGSON3_ENHANCEMENT 1676 config LOONGSON3_ENHANCEMENT
1675 bool "New Loongson-3 CPU Enhancements 1677 bool "New Loongson-3 CPU Enhancements"
1676 default n 1678 default n
1677 depends on CPU_LOONGSON64 1679 depends on CPU_LOONGSON64
1678 help 1680 help
1679 New Loongson-3 cores (since Loongso 1681 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1680 R1, Loongson-3B R1 and Loongson-3B 1682 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1681 FTLB, L1-VCache, EI/DI/Wait/Prefetc 1683 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1682 Local register, Read-Inhibit/Execut 1684 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1683 Fast TLB refill support, etc. 1685 Fast TLB refill support, etc.
1684 1686
1685 This option enable those enhancemen 1687 This option enable those enhancements which are not probed at run
1686 time. If you want a generic kernel 1688 time. If you want a generic kernel to run on all Loongson 3 machines,
1687 please say 'N' here. If you want a 1689 please say 'N' here. If you want a high-performance kernel to run on
1688 new Loongson-3 machines only, pleas 1690 new Loongson-3 machines only, please say 'Y' here.
1689 1691
1690 config CPU_LOONGSON3_WORKAROUNDS 1692 config CPU_LOONGSON3_WORKAROUNDS
1691 bool "Loongson-3 LLSC Workarounds" 1693 bool "Loongson-3 LLSC Workarounds"
1692 default y if SMP 1694 default y if SMP
1693 depends on CPU_LOONGSON64 1695 depends on CPU_LOONGSON64
1694 help 1696 help
1695 Loongson-3 processors have the llsc 1697 Loongson-3 processors have the llsc issues which require workarounds.
1696 Without workarounds the system may 1698 Without workarounds the system may hang unexpectedly.
1697 1699
1698 Say Y, unless you know what you are 1700 Say Y, unless you know what you are doing.
1699 1701
1700 config CPU_LOONGSON3_CPUCFG_EMULATION 1702 config CPU_LOONGSON3_CPUCFG_EMULATION
1701 bool "Emulate the CPUCFG instruction 1703 bool "Emulate the CPUCFG instruction on older Loongson cores"
1702 default y 1704 default y
1703 depends on CPU_LOONGSON64 1705 depends on CPU_LOONGSON64
1704 help 1706 help
1705 Loongson-3A R4 and newer have the C 1707 Loongson-3A R4 and newer have the CPUCFG instruction available for
1706 userland to query CPU capabilities, 1708 userland to query CPU capabilities, much like CPUID on x86. This
1707 option provides emulation of the in 1709 option provides emulation of the instruction on older Loongson
1708 cores, back to Loongson-3A1000. 1710 cores, back to Loongson-3A1000.
1709 1711
1710 If unsure, please say Y. 1712 If unsure, please say Y.
1711 1713
1712 config CPU_MIPS32_3_5_FEATURES 1714 config CPU_MIPS32_3_5_FEATURES
1713 bool "MIPS32 Release 3.5 Features" 1715 bool "MIPS32 Release 3.5 Features"
1714 depends on SYS_HAS_CPU_MIPS32_R3_5 1716 depends on SYS_HAS_CPU_MIPS32_R3_5
1715 depends on CPU_MIPS32_R2 || CPU_MIPS3 1717 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
1716 CPU_P5600 1718 CPU_P5600
1717 help 1719 help
1718 Choose this option to build a kerne 1720 Choose this option to build a kernel for release 2 or later of the
1719 MIPS32 architecture including featu 1721 MIPS32 architecture including features from the 3.5 release such as
1720 support for Enhanced Virtual Addres 1722 support for Enhanced Virtual Addressing (EVA).
1721 1723
1722 config CPU_MIPS32_3_5_EVA 1724 config CPU_MIPS32_3_5_EVA
1723 bool "Enhanced Virtual Addressing (EV 1725 bool "Enhanced Virtual Addressing (EVA)"
1724 depends on CPU_MIPS32_3_5_FEATURES 1726 depends on CPU_MIPS32_3_5_FEATURES
1725 select EVA 1727 select EVA
1726 default y 1728 default y
1727 help 1729 help
1728 Choose this option if you want to e 1730 Choose this option if you want to enable the Enhanced Virtual
1729 Addressing (EVA) on your MIPS32 cor 1731 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1730 One of its primary benefits is an i 1732 One of its primary benefits is an increase in the maximum size
1731 of lowmem (up to 3GB). If unsure, s 1733 of lowmem (up to 3GB). If unsure, say 'N' here.
1732 1734
1733 config CPU_MIPS32_R5_FEATURES 1735 config CPU_MIPS32_R5_FEATURES
1734 bool "MIPS32 Release 5 Features" 1736 bool "MIPS32 Release 5 Features"
1735 depends on SYS_HAS_CPU_MIPS32_R5 1737 depends on SYS_HAS_CPU_MIPS32_R5
1736 depends on CPU_MIPS32_R2 || CPU_MIPS3 1738 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
1737 help 1739 help
1738 Choose this option to build a kerne 1740 Choose this option to build a kernel for release 2 or later of the
1739 MIPS32 architecture including featu 1741 MIPS32 architecture including features from release 5 such as
1740 support for Extended Physical Addre 1742 support for Extended Physical Addressing (XPA).
1741 1743
1742 config CPU_MIPS32_R5_XPA 1744 config CPU_MIPS32_R5_XPA
1743 bool "Extended Physical Addressing (X 1745 bool "Extended Physical Addressing (XPA)"
1744 depends on CPU_MIPS32_R5_FEATURES 1746 depends on CPU_MIPS32_R5_FEATURES
1745 depends on !EVA 1747 depends on !EVA
1746 depends on !PAGE_SIZE_4KB 1748 depends on !PAGE_SIZE_4KB
1747 depends on SYS_SUPPORTS_HIGHMEM 1749 depends on SYS_SUPPORTS_HIGHMEM
1748 select XPA 1750 select XPA
1749 select HIGHMEM 1751 select HIGHMEM
1750 select PHYS_ADDR_T_64BIT 1752 select PHYS_ADDR_T_64BIT
1751 default n 1753 default n
1752 help 1754 help
1753 Choose this option if you want to e 1755 Choose this option if you want to enable the Extended Physical
1754 Addressing (XPA) on your MIPS32 cor 1756 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1755 benefit is to increase physical add 1757 benefit is to increase physical addressing equal to or greater
1756 than 40 bits. Note that this has th 1758 than 40 bits. Note that this has the side effect of turning on
1757 64-bit addressing which in turn mak 1759 64-bit addressing which in turn makes the PTEs 64-bit in size.
1758 If unsure, say 'N' here. 1760 If unsure, say 'N' here.
1759 1761
1760 if CPU_LOONGSON2F 1762 if CPU_LOONGSON2F
1761 config CPU_NOP_WORKAROUNDS 1763 config CPU_NOP_WORKAROUNDS
1762 bool 1764 bool
1763 1765
1764 config CPU_JUMP_WORKAROUNDS 1766 config CPU_JUMP_WORKAROUNDS
1765 bool 1767 bool
1766 1768
1767 config CPU_LOONGSON2F_WORKAROUNDS 1769 config CPU_LOONGSON2F_WORKAROUNDS
1768 bool "Loongson 2F Workarounds" 1770 bool "Loongson 2F Workarounds"
1769 default y 1771 default y
1770 select CPU_NOP_WORKAROUNDS 1772 select CPU_NOP_WORKAROUNDS
1771 select CPU_JUMP_WORKAROUNDS 1773 select CPU_JUMP_WORKAROUNDS
1772 help 1774 help
1773 Loongson 2F01 / 2F02 processors hav 1775 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1774 require workarounds. Without worka 1776 require workarounds. Without workarounds the system may hang
1775 unexpectedly. For more information 1777 unexpectedly. For more information please refer to the gas
1776 -mfix-loongson2f-nop and -mfix-loon 1778 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1777 1779
1778 Loongson 2F03 and later have fixed 1780 Loongson 2F03 and later have fixed these issues and no workarounds
1779 are needed. The workarounds have n 1781 are needed. The workarounds have no significant side effect on them
1780 but may decrease the performance of 1782 but may decrease the performance of the system so this option should
1781 be disabled unless the kernel is in 1783 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1782 systems. 1784 systems.
1783 1785
1784 If unsure, please say Y. 1786 If unsure, please say Y.
1785 endif # CPU_LOONGSON2F 1787 endif # CPU_LOONGSON2F
1786 1788
1787 config SYS_SUPPORTS_ZBOOT 1789 config SYS_SUPPORTS_ZBOOT
1788 bool 1790 bool
1789 select HAVE_KERNEL_GZIP 1791 select HAVE_KERNEL_GZIP
1790 select HAVE_KERNEL_BZIP2 1792 select HAVE_KERNEL_BZIP2
1791 select HAVE_KERNEL_LZ4 1793 select HAVE_KERNEL_LZ4
1792 select HAVE_KERNEL_LZMA 1794 select HAVE_KERNEL_LZMA
1793 select HAVE_KERNEL_LZO 1795 select HAVE_KERNEL_LZO
1794 select HAVE_KERNEL_XZ 1796 select HAVE_KERNEL_XZ
1795 select HAVE_KERNEL_ZSTD 1797 select HAVE_KERNEL_ZSTD
1796 1798
1797 config SYS_SUPPORTS_ZBOOT_UART16550 1799 config SYS_SUPPORTS_ZBOOT_UART16550
1798 bool 1800 bool
1799 select SYS_SUPPORTS_ZBOOT 1801 select SYS_SUPPORTS_ZBOOT
1800 1802
1801 config SYS_SUPPORTS_ZBOOT_UART_PROM 1803 config SYS_SUPPORTS_ZBOOT_UART_PROM
1802 bool 1804 bool
1803 select SYS_SUPPORTS_ZBOOT 1805 select SYS_SUPPORTS_ZBOOT
1804 1806
1805 config CPU_LOONGSON2EF 1807 config CPU_LOONGSON2EF
1806 bool 1808 bool
1807 select CPU_SUPPORTS_32BIT_KERNEL 1809 select CPU_SUPPORTS_32BIT_KERNEL
1808 select CPU_SUPPORTS_64BIT_KERNEL 1810 select CPU_SUPPORTS_64BIT_KERNEL
1809 select CPU_SUPPORTS_HIGHMEM 1811 select CPU_SUPPORTS_HIGHMEM
1810 select CPU_SUPPORTS_HUGEPAGES 1812 select CPU_SUPPORTS_HUGEPAGES
1811 1813
1812 config CPU_LOONGSON32 1814 config CPU_LOONGSON32
1813 bool 1815 bool
1814 select CPU_MIPS32 1816 select CPU_MIPS32
1815 select CPU_MIPSR2 1817 select CPU_MIPSR2
1816 select CPU_HAS_PREFETCH 1818 select CPU_HAS_PREFETCH
1817 select CPU_SUPPORTS_32BIT_KERNEL 1819 select CPU_SUPPORTS_32BIT_KERNEL
1818 select CPU_SUPPORTS_HIGHMEM 1820 select CPU_SUPPORTS_HIGHMEM
1819 select CPU_SUPPORTS_CPUFREQ 1821 select CPU_SUPPORTS_CPUFREQ
1820 1822
1821 config CPU_BMIPS32_3300 1823 config CPU_BMIPS32_3300
1822 select SMP_UP if SMP 1824 select SMP_UP if SMP
1823 bool 1825 bool
1824 1826
1825 config CPU_BMIPS4350 1827 config CPU_BMIPS4350
1826 bool 1828 bool
1827 select SYS_SUPPORTS_SMP 1829 select SYS_SUPPORTS_SMP
1828 select SYS_SUPPORTS_HOTPLUG_CPU 1830 select SYS_SUPPORTS_HOTPLUG_CPU
1829 1831
1830 config CPU_BMIPS4380 1832 config CPU_BMIPS4380
1831 bool 1833 bool
1832 select MIPS_L1_CACHE_SHIFT_6 1834 select MIPS_L1_CACHE_SHIFT_6
1833 select SYS_SUPPORTS_SMP 1835 select SYS_SUPPORTS_SMP
1834 select SYS_SUPPORTS_HOTPLUG_CPU 1836 select SYS_SUPPORTS_HOTPLUG_CPU
1835 select CPU_HAS_RIXI 1837 select CPU_HAS_RIXI
1836 1838
1837 config CPU_BMIPS5000 1839 config CPU_BMIPS5000
1838 bool 1840 bool
1839 select MIPS_CPU_SCACHE 1841 select MIPS_CPU_SCACHE
1840 select MIPS_L1_CACHE_SHIFT_7 1842 select MIPS_L1_CACHE_SHIFT_7
1841 select SYS_SUPPORTS_SMP 1843 select SYS_SUPPORTS_SMP
1842 select SYS_SUPPORTS_HOTPLUG_CPU 1844 select SYS_SUPPORTS_HOTPLUG_CPU
1843 select CPU_HAS_RIXI 1845 select CPU_HAS_RIXI
1844 1846
1845 config SYS_HAS_CPU_LOONGSON64 1847 config SYS_HAS_CPU_LOONGSON64
1846 bool 1848 bool
1847 select CPU_SUPPORTS_CPUFREQ 1849 select CPU_SUPPORTS_CPUFREQ
1848 select CPU_HAS_RIXI 1850 select CPU_HAS_RIXI
1849 1851
1850 config SYS_HAS_CPU_LOONGSON2E 1852 config SYS_HAS_CPU_LOONGSON2E
1851 bool 1853 bool
1852 1854
1853 config SYS_HAS_CPU_LOONGSON2F 1855 config SYS_HAS_CPU_LOONGSON2F
1854 bool 1856 bool
1855 select CPU_SUPPORTS_CPUFREQ 1857 select CPU_SUPPORTS_CPUFREQ
1856 select CPU_SUPPORTS_ADDRWINCFG if 64B 1858 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1857 1859
1858 config SYS_HAS_CPU_LOONGSON1B 1860 config SYS_HAS_CPU_LOONGSON1B
1859 bool 1861 bool
1860 1862
1861 config SYS_HAS_CPU_LOONGSON1C 1863 config SYS_HAS_CPU_LOONGSON1C
1862 bool 1864 bool
1863 1865
1864 config SYS_HAS_CPU_MIPS32_R1 1866 config SYS_HAS_CPU_MIPS32_R1
1865 bool 1867 bool
1866 1868
1867 config SYS_HAS_CPU_MIPS32_R2 1869 config SYS_HAS_CPU_MIPS32_R2
1868 bool 1870 bool
1869 1871
1870 config SYS_HAS_CPU_MIPS32_R3_5 1872 config SYS_HAS_CPU_MIPS32_R3_5
1871 bool 1873 bool
1872 1874
1873 config SYS_HAS_CPU_MIPS32_R5 1875 config SYS_HAS_CPU_MIPS32_R5
1874 bool 1876 bool
1875 1877
1876 config SYS_HAS_CPU_MIPS32_R6 1878 config SYS_HAS_CPU_MIPS32_R6
1877 bool 1879 bool
1878 1880
1879 config SYS_HAS_CPU_MIPS64_R1 1881 config SYS_HAS_CPU_MIPS64_R1
1880 bool 1882 bool
1881 1883
1882 config SYS_HAS_CPU_MIPS64_R2 1884 config SYS_HAS_CPU_MIPS64_R2
1883 bool 1885 bool
1884 1886
1885 config SYS_HAS_CPU_MIPS64_R5 1887 config SYS_HAS_CPU_MIPS64_R5
1886 bool 1888 bool
1887 1889
1888 config SYS_HAS_CPU_MIPS64_R6 1890 config SYS_HAS_CPU_MIPS64_R6
1889 bool 1891 bool
1890 1892
1891 config SYS_HAS_CPU_P5600 1893 config SYS_HAS_CPU_P5600
1892 bool 1894 bool
1893 1895
1894 config SYS_HAS_CPU_R3000 1896 config SYS_HAS_CPU_R3000
1895 bool 1897 bool
1896 1898
1897 config SYS_HAS_CPU_R4300 1899 config SYS_HAS_CPU_R4300
1898 bool 1900 bool
1899 1901
1900 config SYS_HAS_CPU_R4X00 1902 config SYS_HAS_CPU_R4X00
1901 bool 1903 bool
1902 1904
1903 config SYS_HAS_CPU_TX49XX 1905 config SYS_HAS_CPU_TX49XX
1904 bool 1906 bool
1905 1907
1906 config SYS_HAS_CPU_R5000 1908 config SYS_HAS_CPU_R5000
1907 bool 1909 bool
1908 1910
1909 config SYS_HAS_CPU_R5500 1911 config SYS_HAS_CPU_R5500
1910 bool 1912 bool
1911 1913
1912 config SYS_HAS_CPU_NEVADA 1914 config SYS_HAS_CPU_NEVADA
1913 bool 1915 bool
1914 1916
1915 config SYS_HAS_CPU_R10000 1917 config SYS_HAS_CPU_R10000
1916 bool 1918 bool
1917 1919
1918 config SYS_HAS_CPU_RM7000 1920 config SYS_HAS_CPU_RM7000
1919 bool 1921 bool
1920 1922
1921 config SYS_HAS_CPU_SB1 1923 config SYS_HAS_CPU_SB1
1922 bool 1924 bool
1923 1925
1924 config SYS_HAS_CPU_CAVIUM_OCTEON 1926 config SYS_HAS_CPU_CAVIUM_OCTEON
1925 bool 1927 bool
1926 1928
1927 config SYS_HAS_CPU_BMIPS 1929 config SYS_HAS_CPU_BMIPS
1928 bool 1930 bool
1929 1931
1930 config SYS_HAS_CPU_BMIPS32_3300 1932 config SYS_HAS_CPU_BMIPS32_3300
1931 bool 1933 bool
1932 select SYS_HAS_CPU_BMIPS 1934 select SYS_HAS_CPU_BMIPS
1933 1935
1934 config SYS_HAS_CPU_BMIPS4350 1936 config SYS_HAS_CPU_BMIPS4350
1935 bool 1937 bool
1936 select SYS_HAS_CPU_BMIPS 1938 select SYS_HAS_CPU_BMIPS
1937 1939
1938 config SYS_HAS_CPU_BMIPS4380 1940 config SYS_HAS_CPU_BMIPS4380
1939 bool 1941 bool
1940 select SYS_HAS_CPU_BMIPS 1942 select SYS_HAS_CPU_BMIPS
1941 1943
1942 config SYS_HAS_CPU_BMIPS5000 1944 config SYS_HAS_CPU_BMIPS5000
1943 bool 1945 bool
1944 select SYS_HAS_CPU_BMIPS 1946 select SYS_HAS_CPU_BMIPS
1945 1947
1946 # 1948 #
1947 # CPU may reorder R->R, R->W, W->R, W->W 1949 # CPU may reorder R->R, R->W, W->R, W->W
1948 # Reordering beyond LL and SC is handled in W 1950 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1949 # 1951 #
1950 config WEAK_ORDERING 1952 config WEAK_ORDERING
1951 bool 1953 bool
1952 1954
1953 # 1955 #
1954 # CPU may reorder reads and writes beyond LL/ 1956 # CPU may reorder reads and writes beyond LL/SC
1955 # CPU may reorder R->LL, R->LL, W->LL, W->LL, 1957 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1956 # 1958 #
1957 config WEAK_REORDERING_BEYOND_LLSC 1959 config WEAK_REORDERING_BEYOND_LLSC
1958 bool 1960 bool
1959 endmenu 1961 endmenu
1960 1962
1961 # 1963 #
1962 # These two indicate any level of the MIPS32 1964 # These two indicate any level of the MIPS32 and MIPS64 architecture
1963 # 1965 #
1964 config CPU_MIPS32 1966 config CPU_MIPS32
1965 bool 1967 bool
1966 default y if CPU_MIPS32_R1 || CPU_MIP 1968 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
1967 CPU_MIPS32_R6 || CPU_P56 1969 CPU_MIPS32_R6 || CPU_P5600
1968 1970
1969 config CPU_MIPS64 1971 config CPU_MIPS64
1970 bool 1972 bool
1971 default y if CPU_MIPS64_R1 || CPU_MIP 1973 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
1972 CPU_MIPS64_R6 || CPU_LOO 1974 CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON
1973 1975
1974 # 1976 #
1975 # These indicate the revision of the architec 1977 # These indicate the revision of the architecture
1976 # 1978 #
1977 config CPU_MIPSR1 1979 config CPU_MIPSR1
1978 bool 1980 bool
1979 default y if CPU_MIPS32_R1 || CPU_MIP 1981 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1980 1982
1981 config CPU_MIPSR2 1983 config CPU_MIPSR2
1982 bool 1984 bool
1983 default y if CPU_MIPS32_R2 || CPU_MIP 1985 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1984 select CPU_HAS_RIXI 1986 select CPU_HAS_RIXI
1985 select CPU_HAS_DIEI if !CPU_DIEI_BROK 1987 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
1986 select MIPS_SPRAM 1988 select MIPS_SPRAM
1987 1989
1988 config CPU_MIPSR5 1990 config CPU_MIPSR5
1989 bool 1991 bool
1990 default y if CPU_MIPS32_R5 || CPU_MIP 1992 default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
1991 select CPU_HAS_RIXI 1993 select CPU_HAS_RIXI
1992 select CPU_HAS_DIEI if !CPU_DIEI_BROK 1994 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
1993 select MIPS_SPRAM 1995 select MIPS_SPRAM
1994 1996
1995 config CPU_MIPSR6 1997 config CPU_MIPSR6
1996 bool 1998 bool
1997 default y if CPU_MIPS32_R6 || CPU_MIP 1999 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1998 select CPU_HAS_RIXI 2000 select CPU_HAS_RIXI
1999 select CPU_HAS_DIEI if !CPU_DIEI_BROK 2001 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2000 select HAVE_ARCH_BITREVERSE 2002 select HAVE_ARCH_BITREVERSE
2001 select MIPS_ASID_BITS_VARIABLE 2003 select MIPS_ASID_BITS_VARIABLE
2002 select MIPS_CRC_SUPPORT 2004 select MIPS_CRC_SUPPORT
2003 select MIPS_SPRAM 2005 select MIPS_SPRAM
2004 2006
2005 config TARGET_ISA_REV 2007 config TARGET_ISA_REV
2006 int 2008 int
2007 default 1 if CPU_MIPSR1 2009 default 1 if CPU_MIPSR1
2008 default 2 if CPU_MIPSR2 2010 default 2 if CPU_MIPSR2
2009 default 5 if CPU_MIPSR5 2011 default 5 if CPU_MIPSR5
2010 default 6 if CPU_MIPSR6 2012 default 6 if CPU_MIPSR6
2011 default 0 2013 default 0
2012 help 2014 help
2013 Reflects the ISA revision being tar 2015 Reflects the ISA revision being targeted by the kernel build. This
2014 is effectively the Kconfig equivale 2016 is effectively the Kconfig equivalent of MIPS_ISA_REV.
2015 2017
2016 config EVA 2018 config EVA
2017 bool 2019 bool
2018 2020
2019 config XPA 2021 config XPA
2020 bool 2022 bool
2021 2023
2022 config SYS_SUPPORTS_32BIT_KERNEL 2024 config SYS_SUPPORTS_32BIT_KERNEL
2023 bool 2025 bool
2024 config SYS_SUPPORTS_64BIT_KERNEL 2026 config SYS_SUPPORTS_64BIT_KERNEL
2025 bool 2027 bool
2026 config CPU_SUPPORTS_32BIT_KERNEL 2028 config CPU_SUPPORTS_32BIT_KERNEL
2027 bool 2029 bool
2028 config CPU_SUPPORTS_64BIT_KERNEL 2030 config CPU_SUPPORTS_64BIT_KERNEL
2029 bool 2031 bool
2030 config CPU_SUPPORTS_CPUFREQ 2032 config CPU_SUPPORTS_CPUFREQ
2031 bool 2033 bool
2032 config CPU_SUPPORTS_ADDRWINCFG 2034 config CPU_SUPPORTS_ADDRWINCFG
2033 bool 2035 bool
2034 config CPU_SUPPORTS_HUGEPAGES 2036 config CPU_SUPPORTS_HUGEPAGES
2035 bool 2037 bool
2036 depends on !(32BIT && (PHYS_ADDR_T_64 2038 depends on !(32BIT && (PHYS_ADDR_T_64BIT || EVA))
2037 config CPU_SUPPORTS_VZ 2039 config CPU_SUPPORTS_VZ
2038 bool 2040 bool
2039 config MIPS_PGD_C0_CONTEXT 2041 config MIPS_PGD_C0_CONTEXT
2040 bool 2042 bool
2041 depends on 64BIT 2043 depends on 64BIT
2042 default y if (CPU_MIPSR2 || CPU_MIPSR 2044 default y if (CPU_MIPSR2 || CPU_MIPSR6)
2043 2045
2044 # 2046 #
2045 # Set to y for ptrace access to watch registe 2047 # Set to y for ptrace access to watch registers.
2046 # 2048 #
2047 config HARDWARE_WATCHPOINTS 2049 config HARDWARE_WATCHPOINTS
2048 bool 2050 bool
2049 default y if CPU_MIPSR1 || CPU_MIPSR2 2051 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2050 2052
2051 menu "Kernel type" 2053 menu "Kernel type"
2052 2054
2053 choice 2055 choice
2054 prompt "Kernel code model" 2056 prompt "Kernel code model"
2055 help 2057 help
2056 You should only select this option 2058 You should only select this option if you have a workload that
2057 actually benefits from 64-bit proce 2059 actually benefits from 64-bit processing or if your machine has
2058 large memory. You will only be pre 2060 large memory. You will only be presented a single option in this
2059 menu if your system does not suppor 2061 menu if your system does not support both 32-bit and 64-bit kernels.
2060 2062
2061 config 32BIT 2063 config 32BIT
2062 bool "32-bit kernel" 2064 bool "32-bit kernel"
2063 depends on CPU_SUPPORTS_32BIT_KERNEL 2065 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2064 select TRAD_SIGNALS 2066 select TRAD_SIGNALS
2065 help 2067 help
2066 Select this option if you want to b 2068 Select this option if you want to build a 32-bit kernel.
2067 2069
2068 config 64BIT 2070 config 64BIT
2069 bool "64-bit kernel" 2071 bool "64-bit kernel"
2070 depends on CPU_SUPPORTS_64BIT_KERNEL 2072 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2071 help 2073 help
2072 Select this option if you want to b 2074 Select this option if you want to build a 64-bit kernel.
2073 2075
2074 endchoice 2076 endchoice
2075 2077
2076 config MIPS_VA_BITS_48 2078 config MIPS_VA_BITS_48
2077 bool "48 bits virtual memory" 2079 bool "48 bits virtual memory"
2078 depends on 64BIT 2080 depends on 64BIT
2079 help 2081 help
2080 Support a maximum at least 48 bits 2082 Support a maximum at least 48 bits of application virtual
2081 memory. Default is 40 bits or less 2083 memory. Default is 40 bits or less, depending on the CPU.
2082 For page sizes 16k and above, this 2084 For page sizes 16k and above, this option results in a small
2083 memory overhead for page tables. F 2085 memory overhead for page tables. For 4k page size, a fourth
2084 level of page tables is added which 2086 level of page tables is added which imposes both a memory
2085 overhead as well as slower TLB faul 2087 overhead as well as slower TLB fault handling.
2086 2088
2087 If unsure, say N. 2089 If unsure, say N.
2088 2090
2089 config ZBOOT_LOAD_ADDRESS 2091 config ZBOOT_LOAD_ADDRESS
2090 hex "Compressed kernel load address" 2092 hex "Compressed kernel load address"
2091 default 0xffffffff80400000 if BCM47XX 2093 default 0xffffffff80400000 if BCM47XX
2092 default 0x0 2094 default 0x0
2093 depends on SYS_SUPPORTS_ZBOOT 2095 depends on SYS_SUPPORTS_ZBOOT
2094 help 2096 help
2095 The address to load compressed kern 2097 The address to load compressed kernel, aka vmlinuz.
2096 2098
2097 This is only used if non-zero. 2099 This is only used if non-zero.
2098 2100
2099 config ARCH_FORCE_MAX_ORDER 2101 config ARCH_FORCE_MAX_ORDER
2100 int "Maximum zone order" 2102 int "Maximum zone order"
2101 default "13" if MIPS_HUGE_TLB_SUPPORT 2103 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2102 default "12" if MIPS_HUGE_TLB_SUPPORT 2104 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2103 default "11" if MIPS_HUGE_TLB_SUPPORT 2105 default "11" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2104 default "10" 2106 default "10"
2105 help 2107 help
2106 The kernel memory allocator divides 2108 The kernel memory allocator divides physically contiguous memory
2107 blocks into "zones", where each zon 2109 blocks into "zones", where each zone is a power of two number of
2108 pages. This option selects the lar 2110 pages. This option selects the largest power of two that the kernel
2109 keeps in the memory allocator. If 2111 keeps in the memory allocator. If you need to allocate very large
2110 blocks of physically contiguous mem 2112 blocks of physically contiguous memory, then you may need to
2111 increase this value. 2113 increase this value.
2112 2114
2113 The page size is not necessarily 4K 2115 The page size is not necessarily 4KB. Keep this in mind
2114 when choosing a value for this opti 2116 when choosing a value for this option.
2115 2117
2116 config BOARD_SCACHE 2118 config BOARD_SCACHE
2117 bool 2119 bool
2118 2120
2119 config IP22_CPU_SCACHE 2121 config IP22_CPU_SCACHE
2120 bool 2122 bool
2121 select BOARD_SCACHE 2123 select BOARD_SCACHE
2122 2124
2123 # 2125 #
2124 # Support for a MIPS32 / MIPS64 style S-cache 2126 # Support for a MIPS32 / MIPS64 style S-caches
2125 # 2127 #
2126 config MIPS_CPU_SCACHE 2128 config MIPS_CPU_SCACHE
2127 bool 2129 bool
2128 select BOARD_SCACHE 2130 select BOARD_SCACHE
2129 2131
2130 config R5000_CPU_SCACHE 2132 config R5000_CPU_SCACHE
2131 bool 2133 bool
2132 select BOARD_SCACHE 2134 select BOARD_SCACHE
2133 2135
2134 config RM7000_CPU_SCACHE 2136 config RM7000_CPU_SCACHE
2135 bool 2137 bool
2136 select BOARD_SCACHE 2138 select BOARD_SCACHE
2137 2139
2138 config SIBYTE_DMA_PAGEOPS 2140 config SIBYTE_DMA_PAGEOPS
2139 bool "Use DMA to clear/copy pages" 2141 bool "Use DMA to clear/copy pages"
2140 depends on CPU_SB1 2142 depends on CPU_SB1
2141 help 2143 help
2142 Instead of using the CPU to zero an 2144 Instead of using the CPU to zero and copy pages, use a Data Mover
2143 channel. These DMA channels are ot 2145 channel. These DMA channels are otherwise unused by the standard
2144 SiByte Linux port. Seems to give a 2146 SiByte Linux port. Seems to give a small performance benefit.
2145 2147
2146 config CPU_HAS_PREFETCH 2148 config CPU_HAS_PREFETCH
2147 bool 2149 bool
2148 2150
2149 config CPU_GENERIC_DUMP_TLB 2151 config CPU_GENERIC_DUMP_TLB
2150 bool 2152 bool
2151 default y if !CPU_R3000 2153 default y if !CPU_R3000
2152 2154
2153 config MIPS_FP_SUPPORT 2155 config MIPS_FP_SUPPORT
2154 bool "Floating Point support" if EXPE 2156 bool "Floating Point support" if EXPERT
2155 default y 2157 default y
2156 help 2158 help
2157 Select y to include support for flo 2159 Select y to include support for floating point in the kernel
2158 including initialization of FPU har 2160 including initialization of FPU hardware, FP context save & restore
2159 and emulation of an FPU where neces 2161 and emulation of an FPU where necessary. Without this support any
2160 userland program attempting to use 2162 userland program attempting to use floating point instructions will
2161 receive a SIGILL. 2163 receive a SIGILL.
2162 2164
2163 If you know that your userland will 2165 If you know that your userland will not attempt to use floating point
2164 instructions then you can say n her 2166 instructions then you can say n here to shrink the kernel a little.
2165 2167
2166 If unsure, say y. 2168 If unsure, say y.
2167 2169
2168 config CPU_R2300_FPU 2170 config CPU_R2300_FPU
2169 bool 2171 bool
2170 depends on MIPS_FP_SUPPORT 2172 depends on MIPS_FP_SUPPORT
2171 default y if CPU_R3000 2173 default y if CPU_R3000
2172 2174
2173 config CPU_R3K_TLB 2175 config CPU_R3K_TLB
2174 bool 2176 bool
2175 2177
2176 config CPU_R4K_FPU 2178 config CPU_R4K_FPU
2177 bool 2179 bool
2178 depends on MIPS_FP_SUPPORT 2180 depends on MIPS_FP_SUPPORT
2179 default y if !CPU_R2300_FPU 2181 default y if !CPU_R2300_FPU
2180 2182
2181 config CPU_R4K_CACHE_TLB 2183 config CPU_R4K_CACHE_TLB
2182 bool 2184 bool
2183 default y if !(CPU_R3K_TLB || CPU_SB1 2185 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2184 2186
2185 config MIPS_MT_SMP 2187 config MIPS_MT_SMP
2186 bool "MIPS MT SMP support (1 TC on ea 2188 bool "MIPS MT SMP support (1 TC on each available VPE)"
2187 default y 2189 default y
2188 depends on TARGET_ISA_REV > 0 && TARG 2190 depends on TARGET_ISA_REV > 0 && TARGET_ISA_REV < 6
2189 depends on SYS_SUPPORTS_MULTITHREADIN 2191 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MICROMIPS
2190 select CPU_MIPSR2_IRQ_VI 2192 select CPU_MIPSR2_IRQ_VI
2191 select CPU_MIPSR2_IRQ_EI 2193 select CPU_MIPSR2_IRQ_EI
2192 select SYNC_R4K 2194 select SYNC_R4K
2193 select MIPS_MT 2195 select MIPS_MT
2194 select SMP 2196 select SMP
2195 select SMP_UP 2197 select SMP_UP
2196 select SYS_SUPPORTS_SMP 2198 select SYS_SUPPORTS_SMP
2197 select SYS_SUPPORTS_SCHED_SMT 2199 select SYS_SUPPORTS_SCHED_SMT
2198 select MIPS_PERF_SHARED_TC_COUNTERS 2200 select MIPS_PERF_SHARED_TC_COUNTERS
2199 help 2201 help
2200 This is a kernel model which is kno 2202 This is a kernel model which is known as SMVP. This is supported
2201 on cores with the MT ASE and uses t 2203 on cores with the MT ASE and uses the available VPEs to implement
2202 virtual processors which supports S 2204 virtual processors which supports SMP. This is equivalent to the
2203 Intel Hyperthreading feature. For f 2205 Intel Hyperthreading feature. For further information go to
2204 <http://www.imgtec.com/mips/mips-mu 2206 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2205 2207
2206 config MIPS_MT 2208 config MIPS_MT
2207 bool 2209 bool
2208 2210
2209 config SCHED_SMT 2211 config SCHED_SMT
2210 bool "SMT (multithreading) scheduler 2212 bool "SMT (multithreading) scheduler support"
2211 depends on SYS_SUPPORTS_SCHED_SMT 2213 depends on SYS_SUPPORTS_SCHED_SMT
2212 default n 2214 default n
2213 help 2215 help
2214 SMT scheduler support improves the 2216 SMT scheduler support improves the CPU scheduler's decision making
2215 when dealing with MIPS MT enabled c 2217 when dealing with MIPS MT enabled cores at a cost of slightly
2216 increased overhead in some places. 2218 increased overhead in some places. If unsure say N here.
2217 2219
2218 config SYS_SUPPORTS_SCHED_SMT 2220 config SYS_SUPPORTS_SCHED_SMT
2219 bool 2221 bool
2220 2222
2221 config SYS_SUPPORTS_MULTITHREADING 2223 config SYS_SUPPORTS_MULTITHREADING
2222 bool 2224 bool
2223 2225
2224 config MIPS_MT_FPAFF 2226 config MIPS_MT_FPAFF
2225 bool "Dynamic FPU affinity for FP-int 2227 bool "Dynamic FPU affinity for FP-intensive threads"
2226 default y 2228 default y
2227 depends on MIPS_MT_SMP 2229 depends on MIPS_MT_SMP
2228 2230
2229 config MIPSR2_TO_R6_EMULATOR 2231 config MIPSR2_TO_R6_EMULATOR
2230 bool "MIPS R2-to-R6 emulator" 2232 bool "MIPS R2-to-R6 emulator"
2231 depends on CPU_MIPSR6 2233 depends on CPU_MIPSR6
2232 depends on MIPS_FP_SUPPORT 2234 depends on MIPS_FP_SUPPORT
2233 default y 2235 default y
2234 help 2236 help
2235 Choose this option if you want to r 2237 Choose this option if you want to run non-R6 MIPS userland code.
2236 Even if you say 'Y' here, the emula 2238 Even if you say 'Y' here, the emulator will still be disabled by
2237 default. You can enable it using th 2239 default. You can enable it using the 'mipsr2emu' kernel option.
2238 The only reason this is a build-tim 2240 The only reason this is a build-time option is to save ~14K from the
2239 final kernel image. 2241 final kernel image.
2240 2242
2241 config SYS_SUPPORTS_VPE_LOADER 2243 config SYS_SUPPORTS_VPE_LOADER
2242 bool 2244 bool
2243 depends on SYS_SUPPORTS_MULTITHREADIN 2245 depends on SYS_SUPPORTS_MULTITHREADING
2244 help 2246 help
2245 Indicates that the platform support 2247 Indicates that the platform supports the VPE loader, and provides
2246 physical_memsize. 2248 physical_memsize.
2247 2249
2248 config MIPS_VPE_LOADER 2250 config MIPS_VPE_LOADER
2249 bool "VPE loader support." 2251 bool "VPE loader support."
2250 depends on SYS_SUPPORTS_VPE_LOADER && 2252 depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2251 select CPU_MIPSR2_IRQ_VI 2253 select CPU_MIPSR2_IRQ_VI
2252 select CPU_MIPSR2_IRQ_EI 2254 select CPU_MIPSR2_IRQ_EI
2253 select MIPS_MT 2255 select MIPS_MT
2254 help 2256 help
2255 Includes a loader for loading an el 2257 Includes a loader for loading an elf relocatable object
2256 onto another VPE and running it. 2258 onto another VPE and running it.
2257 2259
2258 config MIPS_VPE_LOADER_MT 2260 config MIPS_VPE_LOADER_MT
2259 bool 2261 bool
2260 default "y" 2262 default "y"
2261 depends on MIPS_VPE_LOADER 2263 depends on MIPS_VPE_LOADER
2262 2264
2263 config MIPS_VPE_LOADER_TOM 2265 config MIPS_VPE_LOADER_TOM
2264 bool "Load VPE program into memory hi 2266 bool "Load VPE program into memory hidden from linux"
2265 depends on MIPS_VPE_LOADER 2267 depends on MIPS_VPE_LOADER
2266 default y 2268 default y
2267 help 2269 help
2268 The loader can use memory that is p 2270 The loader can use memory that is present but has been hidden from
2269 Linux using the kernel command line 2271 Linux using the kernel command line option "mem=xxMB". It's up to
2270 you to ensure the amount you put in 2272 you to ensure the amount you put in the option and the space your
2271 program requires is less or equal t 2273 program requires is less or equal to the amount physically present.
2272 2274
2273 config MIPS_VPE_APSP_API 2275 config MIPS_VPE_APSP_API
2274 bool "Enable support for AP/SP API (R 2276 bool "Enable support for AP/SP API (RTLX)"
2275 depends on MIPS_VPE_LOADER 2277 depends on MIPS_VPE_LOADER
2276 2278
2277 config MIPS_VPE_APSP_API_MT 2279 config MIPS_VPE_APSP_API_MT
2278 bool 2280 bool
2279 default "y" 2281 default "y"
2280 depends on MIPS_VPE_APSP_API 2282 depends on MIPS_VPE_APSP_API
2281 2283
2282 config MIPS_CPS 2284 config MIPS_CPS
2283 bool "MIPS Coherent Processing System 2285 bool "MIPS Coherent Processing System support"
2284 depends on SYS_SUPPORTS_MIPS_CPS 2286 depends on SYS_SUPPORTS_MIPS_CPS
2285 select MIPS_CM 2287 select MIPS_CM
2286 select MIPS_CPS_PM if HOTPLUG_CPU 2288 select MIPS_CPS_PM if HOTPLUG_CPU
2287 select SMP 2289 select SMP
2288 select HOTPLUG_CORE_SYNC_DEAD if HOTP 2290 select HOTPLUG_CORE_SYNC_DEAD if HOTPLUG_CPU
2289 select SYNC_R4K if (CEVT_R4K || CSRC_ 2291 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2290 select SYS_SUPPORTS_HOTPLUG_CPU 2292 select SYS_SUPPORTS_HOTPLUG_CPU
2291 select SYS_SUPPORTS_SCHED_SMT if CPU_ 2293 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2292 select SYS_SUPPORTS_SMP 2294 select SYS_SUPPORTS_SMP
2293 select WEAK_ORDERING 2295 select WEAK_ORDERING
2294 select GENERIC_IRQ_MIGRATION if HOTPL 2296 select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
2295 help 2297 help
2296 Select this if you wish to run an S 2298 Select this if you wish to run an SMP kernel across multiple cores
2297 within a MIPS Coherent Processing S 2299 within a MIPS Coherent Processing System. When this option is
2298 enabled the kernel will probe for o 2300 enabled the kernel will probe for other cores and boot them with
2299 no external assistance. It is safe 2301 no external assistance. It is safe to enable this when hardware
2300 support is unavailable. 2302 support is unavailable.
2301 2303
2302 config MIPS_CPS_PM 2304 config MIPS_CPS_PM
2303 depends on MIPS_CPS 2305 depends on MIPS_CPS
2304 bool 2306 bool
2305 2307
2306 config MIPS_CM 2308 config MIPS_CM
2307 bool 2309 bool
2308 select MIPS_CPC 2310 select MIPS_CPC
2309 2311
2310 config MIPS_CPC 2312 config MIPS_CPC
2311 bool 2313 bool
2312 2314
2313 config SB1_PASS_2_WORKAROUNDS 2315 config SB1_PASS_2_WORKAROUNDS
2314 bool 2316 bool
2315 depends on CPU_SB1 && (CPU_SB1_PASS_2 2317 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2316 default y 2318 default y
2317 2319
2318 config SB1_PASS_2_1_WORKAROUNDS 2320 config SB1_PASS_2_1_WORKAROUNDS
2319 bool 2321 bool
2320 depends on CPU_SB1 && CPU_SB1_PASS_2 2322 depends on CPU_SB1 && CPU_SB1_PASS_2
2321 default y 2323 default y
2322 2324
2323 choice 2325 choice
2324 prompt "SmartMIPS or microMIPS ASE su 2326 prompt "SmartMIPS or microMIPS ASE support"
2325 2327
2326 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2328 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2327 bool "None" 2329 bool "None"
2328 help 2330 help
2329 Select this if you want neither mic 2331 Select this if you want neither microMIPS nor SmartMIPS support
2330 2332
2331 config CPU_HAS_SMARTMIPS 2333 config CPU_HAS_SMARTMIPS
2332 depends on SYS_SUPPORTS_SMARTMIPS 2334 depends on SYS_SUPPORTS_SMARTMIPS
2333 bool "SmartMIPS" 2335 bool "SmartMIPS"
2334 help 2336 help
2335 SmartMIPS is a extension of the MIP 2337 SmartMIPS is a extension of the MIPS32 architecture aimed at
2336 increased security at both hardware 2338 increased security at both hardware and software level for
2337 smartcards. Enabling this option w 2339 smartcards. Enabling this option will allow proper use of the
2338 SmartMIPS instructions by Linux app 2340 SmartMIPS instructions by Linux applications. However a kernel with
2339 this option will not work on a MIPS 2341 this option will not work on a MIPS core without SmartMIPS core. If
2340 you don't know you probably don't h 2342 you don't know you probably don't have SmartMIPS and should say N
2341 here. 2343 here.
2342 2344
2343 config CPU_MICROMIPS 2345 config CPU_MICROMIPS
2344 depends on 32BIT && SYS_SUPPORTS_MICR 2346 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2345 bool "microMIPS" 2347 bool "microMIPS"
2346 help 2348 help
2347 When this option is enabled the ker 2349 When this option is enabled the kernel will be built using the
2348 microMIPS ISA 2350 microMIPS ISA
2349 2351
2350 endchoice 2352 endchoice
2351 2353
2352 config CPU_HAS_MSA 2354 config CPU_HAS_MSA
2353 bool "Support for the MIPS SIMD Archi 2355 bool "Support for the MIPS SIMD Architecture"
2354 depends on CPU_SUPPORTS_MSA 2356 depends on CPU_SUPPORTS_MSA
2355 depends on MIPS_FP_SUPPORT 2357 depends on MIPS_FP_SUPPORT
2356 depends on 64BIT || MIPS_O32_FP64_SUP 2358 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2357 help 2359 help
2358 MIPS SIMD Architecture (MSA) introd 2360 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2359 and a set of SIMD instructions to o 2361 and a set of SIMD instructions to operate on them. When this option
2360 is enabled the kernel will support 2362 is enabled the kernel will support allocating & switching MSA
2361 vector register contexts. If you kn 2363 vector register contexts. If you know that your kernel will only be
2362 running on CPUs which do not suppor 2364 running on CPUs which do not support MSA or that your userland will
2363 not be making use of it then you ma 2365 not be making use of it then you may wish to say N here to reduce
2364 the size & complexity of your kerne 2366 the size & complexity of your kernel.
2365 2367
2366 If unsure, say Y. 2368 If unsure, say Y.
2367 2369
2368 config CPU_HAS_WB 2370 config CPU_HAS_WB
2369 bool 2371 bool
2370 2372
2371 config XKS01 2373 config XKS01
2372 bool 2374 bool
2373 2375
2374 config CPU_HAS_DIEI 2376 config CPU_HAS_DIEI
2375 depends on !CPU_DIEI_BROKEN 2377 depends on !CPU_DIEI_BROKEN
2376 bool 2378 bool
2377 2379
2378 config CPU_DIEI_BROKEN 2380 config CPU_DIEI_BROKEN
2379 bool 2381 bool
2380 2382
2381 config CPU_HAS_RIXI 2383 config CPU_HAS_RIXI
2382 bool 2384 bool
2383 2385
2384 config CPU_NO_LOAD_STORE_LR 2386 config CPU_NO_LOAD_STORE_LR
2385 bool 2387 bool
2386 help 2388 help
2387 CPU lacks support for unaligned loa 2389 CPU lacks support for unaligned load and store instructions:
2388 LWL, LWR, SWL, SWR (Load/store word 2390 LWL, LWR, SWL, SWR (Load/store word left/right).
2389 LDL, LDR, SDL, SDR (Load/store doub 2391 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2390 systems). 2392 systems).
2391 2393
2392 # 2394 #
2393 # Vectored interrupt mode is an R2 feature 2395 # Vectored interrupt mode is an R2 feature
2394 # 2396 #
2395 config CPU_MIPSR2_IRQ_VI 2397 config CPU_MIPSR2_IRQ_VI
2396 bool 2398 bool
2397 2399
2398 # 2400 #
2399 # Extended interrupt mode is an R2 feature 2401 # Extended interrupt mode is an R2 feature
2400 # 2402 #
2401 config CPU_MIPSR2_IRQ_EI 2403 config CPU_MIPSR2_IRQ_EI
2402 bool 2404 bool
2403 2405
2404 config CPU_HAS_SYNC 2406 config CPU_HAS_SYNC
2405 bool 2407 bool
2406 depends on !CPU_R3000 2408 depends on !CPU_R3000
2407 default y 2409 default y
2408 2410
2409 # 2411 #
2410 # CPU non-features 2412 # CPU non-features
2411 # 2413 #
2412 2414
2413 # Work around the "daddi" and "daddiu" CPU er 2415 # Work around the "daddi" and "daddiu" CPU errata:
2414 # 2416 #
2415 # - The `daddi' instruction fails to trap on 2417 # - The `daddi' instruction fails to trap on overflow.
2416 # "MIPS R4000PC/SC Errata, Processor Revisi 2418 # "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
2417 # erratum #23 2419 # erratum #23
2418 # 2420 #
2419 # - The `daddiu' instruction can produce an i 2421 # - The `daddiu' instruction can produce an incorrect result.
2420 # "MIPS R4000PC/SC Errata, Processor Revisi 2422 # "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
2421 # erratum #41 2423 # erratum #41
2422 # "MIPS R4000MC Errata, Processor Revision 2424 # "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum
2423 # #15 2425 # #15
2424 # "MIPS R4400PC/SC Errata, Processor Revisi 2426 # "MIPS R4400PC/SC Errata, Processor Revision 1.0", erratum #7
2425 # "MIPS R4400MC Errata, Processor Revision 2427 # "MIPS R4400MC Errata, Processor Revision 1.0", erratum #5
2426 config CPU_DADDI_WORKAROUNDS 2428 config CPU_DADDI_WORKAROUNDS
2427 bool 2429 bool
2428 2430
2429 # Work around certain R4000 CPU errata (as im 2431 # Work around certain R4000 CPU errata (as implemented by GCC):
2430 # 2432 #
2431 # - A double-word or a variable shift may giv 2433 # - A double-word or a variable shift may give an incorrect result
2432 # if executed immediately after starting an 2434 # if executed immediately after starting an integer division:
2433 # "MIPS R4000PC/SC Errata, Processor Revisi 2435 # "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
2434 # erratum #28 2436 # erratum #28
2435 # "MIPS R4000MC Errata, Processor Revision 2437 # "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum
2436 # #19 2438 # #19
2437 # 2439 #
2438 # - A double-word or a variable shift may giv 2440 # - A double-word or a variable shift may give an incorrect result
2439 # if executed while an integer multiplicati 2441 # if executed while an integer multiplication is in progress:
2440 # "MIPS R4000PC/SC Errata, Processor Revisi 2442 # "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
2441 # errata #16 & #28 2443 # errata #16 & #28
2442 # 2444 #
2443 # - An integer division may give an incorrect 2445 # - An integer division may give an incorrect result if started in
2444 # a delay slot of a taken branch or a jump: 2446 # a delay slot of a taken branch or a jump:
2445 # "MIPS R4000PC/SC Errata, Processor Revisi 2447 # "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
2446 # erratum #52 2448 # erratum #52
2447 config CPU_R4000_WORKAROUNDS 2449 config CPU_R4000_WORKAROUNDS
2448 bool 2450 bool
2449 select CPU_R4400_WORKAROUNDS 2451 select CPU_R4400_WORKAROUNDS
2450 2452
2451 # Work around certain R4400 CPU errata (as im 2453 # Work around certain R4400 CPU errata (as implemented by GCC):
2452 # 2454 #
2453 # - A double-word or a variable shift may giv 2455 # - A double-word or a variable shift may give an incorrect result
2454 # if executed immediately after starting an 2456 # if executed immediately after starting an integer division:
2455 # "MIPS R4400MC Errata, Processor Revision 2457 # "MIPS R4400MC Errata, Processor Revision 1.0", erratum #10
2456 # "MIPS R4400MC Errata, Processor Revision 2458 # "MIPS R4400MC Errata, Processor Revision 2.0 & 3.0", erratum #4
2457 config CPU_R4400_WORKAROUNDS 2459 config CPU_R4400_WORKAROUNDS
2458 bool 2460 bool
2459 2461
2460 config CPU_R4X00_BUGS64 2462 config CPU_R4X00_BUGS64
2461 bool 2463 bool
2462 default y if SYS_HAS_CPU_R4X00 && 64B 2464 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2463 2465
2464 config MIPS_ASID_SHIFT 2466 config MIPS_ASID_SHIFT
2465 int 2467 int
2466 default 6 if CPU_R3000 2468 default 6 if CPU_R3000
2467 default 0 2469 default 0
2468 2470
2469 config MIPS_ASID_BITS 2471 config MIPS_ASID_BITS
2470 int 2472 int
2471 default 0 if MIPS_ASID_BITS_VARIABLE 2473 default 0 if MIPS_ASID_BITS_VARIABLE
2472 default 6 if CPU_R3000 2474 default 6 if CPU_R3000
2473 default 8 2475 default 8
2474 2476
2475 config MIPS_ASID_BITS_VARIABLE 2477 config MIPS_ASID_BITS_VARIABLE
2476 bool 2478 bool
2477 2479
2478 config MIPS_CRC_SUPPORT 2480 config MIPS_CRC_SUPPORT
2479 bool 2481 bool
2480 2482
2481 # R4600 erratum. Due to the lack of errata i 2483 # R4600 erratum. Due to the lack of errata information the exact
2482 # technical details aren't known. I've exper 2484 # technical details aren't known. I've experimentally found that disabling
2483 # interrupts during indexed I-cache flushes s 2485 # interrupts during indexed I-cache flushes seems to be sufficient to deal
2484 # with the issue. 2486 # with the issue.
2485 config WAR_R4600_V1_INDEX_ICACHEOP 2487 config WAR_R4600_V1_INDEX_ICACHEOP
2486 bool 2488 bool
2487 2489
2488 # Pleasures of the R4600 V1.x. Cite from the 2490 # Pleasures of the R4600 V1.x. Cite from the IDT R4600 V1.7 errata:
2489 # 2491 #
2490 # 18. The CACHE instructions Hit_Writeback_I 2492 # 18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D,
2491 # Hit_Invalidate_D and Create_Dirty_Excl 2493 # Hit_Invalidate_D and Create_Dirty_Excl_D should only be
2492 # executed if there is no other dcache a 2494 # executed if there is no other dcache activity. If the dcache is
2493 # accessed for another instruction immed 2495 # accessed for another instruction immediately preceding when these
2494 # cache instructions are executing, it i 2496 # cache instructions are executing, it is possible that the dcache
2495 # tag match outputs used by these cache 2497 # tag match outputs used by these cache instructions will be
2496 # incorrect. These cache instructions sh 2498 # incorrect. These cache instructions should be preceded by at least
2497 # four instructions that are not any kin 2499 # four instructions that are not any kind of load or store
2498 # instruction. 2500 # instruction.
2499 # 2501 #
2500 # This is not allowed: lw 2502 # This is not allowed: lw
2501 # nop 2503 # nop
2502 # nop 2504 # nop
2503 # nop 2505 # nop
2504 # cache Hi 2506 # cache Hit_Writeback_Invalidate_D
2505 # 2507 #
2506 # This is allowed: lw 2508 # This is allowed: lw
2507 # nop 2509 # nop
2508 # nop 2510 # nop
2509 # nop 2511 # nop
2510 # nop 2512 # nop
2511 # cache Hi 2513 # cache Hit_Writeback_Invalidate_D
2512 config WAR_R4600_V1_HIT_CACHEOP 2514 config WAR_R4600_V1_HIT_CACHEOP
2513 bool 2515 bool
2514 2516
2515 # Writeback and invalidate the primary cache 2517 # Writeback and invalidate the primary cache dcache before DMA.
2516 # 2518 #
2517 # R4600 v2.0 bug: "The CACHE instructions Hit 2519 # R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D,
2518 # Hit_Writeback_D, Hit_Invalidate_D and Creat 2520 # Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only
2519 # operate correctly if the internal data cach 2521 # operate correctly if the internal data cache refill buffer is empty. These
2520 # CACHE instructions should be separated from 2522 # CACHE instructions should be separated from any potential data cache miss
2521 # by a load instruction to an uncached addres 2523 # by a load instruction to an uncached address to empty the response buffer."
2522 # (Revision 2.0 device errata from IDT availa 2524 # (Revision 2.0 device errata from IDT available on https://www.idt.com/
2523 # in .pdf format.) 2525 # in .pdf format.)
2524 config WAR_R4600_V2_HIT_CACHEOP 2526 config WAR_R4600_V2_HIT_CACHEOP
2525 bool 2527 bool
2526 2528
2527 # From TX49/H2 manual: "If the instruction (i 2529 # From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for
2528 # the line which this instruction itself exis 2530 # the line which this instruction itself exists, the following
2529 # operation is not guaranteed." 2531 # operation is not guaranteed."
2530 # 2532 #
2531 # Workaround: do two phase flushing for Index 2533 # Workaround: do two phase flushing for Index_Invalidate_I
2532 config WAR_TX49XX_ICACHE_INDEX_INV 2534 config WAR_TX49XX_ICACHE_INDEX_INV
2533 bool 2535 bool
2534 2536
2535 # The RM7000 processors and the E9000 cores h 2537 # The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra
2536 # opposes it being called that) where invalid 2538 # opposes it being called that) where invalid instructions in the same
2537 # I-cache line worth of instructions being fe 2539 # I-cache line worth of instructions being fetched may case spurious
2538 # exceptions. 2540 # exceptions.
2539 config WAR_ICACHE_REFILLS 2541 config WAR_ICACHE_REFILLS
2540 bool 2542 bool
2541 2543
2542 # On the R10000 up to version 2.6 (not sure a 2544 # On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that
2543 # may cause ll / sc and lld / scd sequences t 2545 # may cause ll / sc and lld / scd sequences to execute non-atomically.
2544 config WAR_R10000_LLSC 2546 config WAR_R10000_LLSC
2545 bool 2547 bool
2546 2548
2547 # 34K core erratum: "Problems Executing the T 2549 # 34K core erratum: "Problems Executing the TLBR Instruction"
2548 config WAR_MIPS34K_MISSED_ITLB 2550 config WAR_MIPS34K_MISSED_ITLB
2549 bool 2551 bool
2550 2552
2551 # 2553 #
2552 # - Highmem only makes sense for the 32-bit k 2554 # - Highmem only makes sense for the 32-bit kernel.
2553 # - The current highmem code will only work p 2555 # - The current highmem code will only work properly on physically indexed
2554 # caches such as R3000, SB1, R7000 or those 2556 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2555 # indexed such as R4000/R4400 SC and MC ver 2557 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2556 # moment we protect the user and offer the 2558 # moment we protect the user and offer the highmem option only on machines
2557 # where it's known to be safe. This will n 2559 # where it's known to be safe. This will not offer highmem on a few systems
2558 # such as MIPS32 and MIPS64 CPUs which may 2560 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2559 # indexed CPUs but we're playing safe. 2561 # indexed CPUs but we're playing safe.
2560 # - We use SYS_SUPPORTS_HIGHMEM to offer high 2562 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2561 # know they might have memory configuration 2563 # know they might have memory configurations that could make use of highmem
2562 # support. 2564 # support.
2563 # 2565 #
2564 config HIGHMEM 2566 config HIGHMEM
2565 bool "High Memory Support" 2567 bool "High Memory Support"
2566 depends on 32BIT && CPU_SUPPORTS_HIGH 2568 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2567 select KMAP_LOCAL 2569 select KMAP_LOCAL
2568 2570
2569 config CPU_SUPPORTS_HIGHMEM 2571 config CPU_SUPPORTS_HIGHMEM
2570 bool 2572 bool
2571 2573
2572 config SYS_SUPPORTS_HIGHMEM 2574 config SYS_SUPPORTS_HIGHMEM
2573 bool 2575 bool
2574 2576
2575 config SYS_SUPPORTS_SMARTMIPS 2577 config SYS_SUPPORTS_SMARTMIPS
2576 bool 2578 bool
2577 2579
2578 config SYS_SUPPORTS_MICROMIPS 2580 config SYS_SUPPORTS_MICROMIPS
2579 bool 2581 bool
2580 2582
2581 config SYS_SUPPORTS_MIPS16 2583 config SYS_SUPPORTS_MIPS16
2582 bool 2584 bool
2583 help 2585 help
2584 This option must be set if a kernel 2586 This option must be set if a kernel might be executed on a MIPS16-
2585 enabled CPU even if MIPS16 is not a 2587 enabled CPU even if MIPS16 is not actually being used. In other
2586 words, it makes the kernel MIPS16-t 2588 words, it makes the kernel MIPS16-tolerant.
2587 2589
2588 config CPU_SUPPORTS_MSA 2590 config CPU_SUPPORTS_MSA
2589 bool 2591 bool
2590 2592
2591 config ARCH_FLATMEM_ENABLE 2593 config ARCH_FLATMEM_ENABLE
2592 def_bool y 2594 def_bool y
2593 depends on !NUMA && !CPU_LOONGSON2EF 2595 depends on !NUMA && !CPU_LOONGSON2EF
2594 2596
2595 config ARCH_SPARSEMEM_ENABLE 2597 config ARCH_SPARSEMEM_ENABLE
2596 bool 2598 bool
2597 2599
2598 config NUMA 2600 config NUMA
2599 bool "NUMA Support" 2601 bool "NUMA Support"
2600 depends on SYS_SUPPORTS_NUMA 2602 depends on SYS_SUPPORTS_NUMA
2601 select SMP 2603 select SMP
2602 select HAVE_SETUP_PER_CPU_AREA 2604 select HAVE_SETUP_PER_CPU_AREA
2603 select NEED_PER_CPU_EMBED_FIRST_CHUNK 2605 select NEED_PER_CPU_EMBED_FIRST_CHUNK
2604 help 2606 help
2605 Say Y to compile the kernel to supp 2607 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2606 Access). This option improves perf 2608 Access). This option improves performance on systems with more
2607 than two nodes; on two node systems 2609 than two nodes; on two node systems it is generally better to
2608 leave it disabled; on single node s 2610 leave it disabled; on single node systems leave this option
2609 disabled. 2611 disabled.
2610 2612
2611 config SYS_SUPPORTS_NUMA 2613 config SYS_SUPPORTS_NUMA
>> 2614 bool
>> 2615
>> 2616 config HAVE_ARCH_NODEDATA_EXTENSION
2612 bool 2617 bool
2613 2618
2614 config RELOCATABLE 2619 config RELOCATABLE
2615 bool "Relocatable kernel" 2620 bool "Relocatable kernel"
2616 depends on SYS_SUPPORTS_RELOCATABLE 2621 depends on SYS_SUPPORTS_RELOCATABLE
2617 depends on CPU_MIPS32_R2 || CPU_MIPS6 2622 depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
2618 CPU_MIPS32_R5 || CPU_MIPS6 2623 CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
2619 CPU_MIPS32_R6 || CPU_MIPS6 2624 CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
2620 CPU_P5600 || CAVIUM_OCTEON 2625 CPU_P5600 || CAVIUM_OCTEON_SOC || \
2621 CPU_LOONGSON64 2626 CPU_LOONGSON64
2622 help 2627 help
2623 This builds a kernel image that ret 2628 This builds a kernel image that retains relocation information
2624 so it can be loaded someplace besid 2629 so it can be loaded someplace besides the default 1MB.
2625 The relocations make the kernel bin 2630 The relocations make the kernel binary about 15% larger,
2626 but are discarded at runtime 2631 but are discarded at runtime
2627 2632
2628 config RELOCATION_TABLE_SIZE 2633 config RELOCATION_TABLE_SIZE
2629 hex "Relocation table size" 2634 hex "Relocation table size"
2630 depends on RELOCATABLE 2635 depends on RELOCATABLE
2631 range 0x0 0x01000000 2636 range 0x0 0x01000000
2632 default "0x00200000" if CPU_LOONGSON6 2637 default "0x00200000" if CPU_LOONGSON64
2633 default "0x00100000" 2638 default "0x00100000"
2634 help 2639 help
2635 A table of relocation data will be 2640 A table of relocation data will be appended to the kernel binary
2636 and parsed at boot to fix up the re 2641 and parsed at boot to fix up the relocated kernel.
2637 2642
2638 This option allows the amount of sp 2643 This option allows the amount of space reserved for the table to be
2639 adjusted, although the default of 1 2644 adjusted, although the default of 1Mb should be ok in most cases.
2640 2645
2641 The build will fail and a valid siz 2646 The build will fail and a valid size suggested if this is too small.
2642 2647
2643 If unsure, leave at the default val 2648 If unsure, leave at the default value.
2644 2649
2645 config RANDOMIZE_BASE 2650 config RANDOMIZE_BASE
2646 bool "Randomize the address of the ke 2651 bool "Randomize the address of the kernel image"
2647 depends on RELOCATABLE 2652 depends on RELOCATABLE
2648 help 2653 help
2649 Randomizes the physical and virtual 2654 Randomizes the physical and virtual address at which the
2650 kernel image is loaded, as a securi 2655 kernel image is loaded, as a security feature that
2651 deters exploit attempts relying on 2656 deters exploit attempts relying on knowledge of the location
2652 of kernel internals. 2657 of kernel internals.
2653 2658
2654 Entropy is generated using any copr 2659 Entropy is generated using any coprocessor 0 registers available.
2655 2660
2656 The kernel will be offset by up to 2661 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2657 2662
2658 If unsure, say N. 2663 If unsure, say N.
2659 2664
2660 config RANDOMIZE_BASE_MAX_OFFSET 2665 config RANDOMIZE_BASE_MAX_OFFSET
2661 hex "Maximum kASLR offset" if EXPERT 2666 hex "Maximum kASLR offset" if EXPERT
2662 depends on RANDOMIZE_BASE 2667 depends on RANDOMIZE_BASE
2663 range 0x0 0x40000000 if EVA || 64BIT 2668 range 0x0 0x40000000 if EVA || 64BIT
2664 range 0x0 0x08000000 2669 range 0x0 0x08000000
2665 default "0x01000000" 2670 default "0x01000000"
2666 help 2671 help
2667 When kASLR is active, this provides 2672 When kASLR is active, this provides the maximum offset that will
2668 be applied to the kernel image. It 2673 be applied to the kernel image. It should be set according to the
2669 amount of physical RAM available in 2674 amount of physical RAM available in the target system minus
2670 PHYSICAL_START and must be a power 2675 PHYSICAL_START and must be a power of 2.
2671 2676
2672 This is limited by the size of KSEG 2677 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2673 EVA or 64-bit. The default is 16Mb. 2678 EVA or 64-bit. The default is 16Mb.
2674 2679
2675 config NODES_SHIFT 2680 config NODES_SHIFT
2676 int 2681 int
2677 default "6" 2682 default "6"
2678 depends on NUMA 2683 depends on NUMA
2679 2684
2680 config HW_PERF_EVENTS 2685 config HW_PERF_EVENTS
2681 bool "Enable hardware performance cou 2686 bool "Enable hardware performance counter support for perf events"
2682 depends on PERF_EVENTS && (CPU_MIPS32 2687 depends on PERF_EVENTS && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_LOONGSON64)
2683 default y 2688 default y
2684 help 2689 help
2685 Enable hardware performance counter 2690 Enable hardware performance counter support for perf events. If
2686 disabled, perf events will use soft 2691 disabled, perf events will use software events only.
2687 2692
2688 config DMI 2693 config DMI
2689 bool "Enable DMI scanning" 2694 bool "Enable DMI scanning"
2690 depends on MACH_LOONGSON64 2695 depends on MACH_LOONGSON64
2691 select DMI_SCAN_MACHINE_NON_EFI_FALLB 2696 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2692 default y 2697 default y
2693 help 2698 help
2694 Enabled scanning of DMI to identify 2699 Enabled scanning of DMI to identify machine quirks. Say Y
2695 here unless you have verified that 2700 here unless you have verified that your setup is not
2696 affected by entries in the DMI blac 2701 affected by entries in the DMI blacklist. Required by PNP
2697 BIOS code. 2702 BIOS code.
2698 2703
2699 config SMP 2704 config SMP
2700 bool "Multi-Processing support" 2705 bool "Multi-Processing support"
2701 depends on SYS_SUPPORTS_SMP 2706 depends on SYS_SUPPORTS_SMP
2702 help 2707 help
2703 This enables support for systems wi 2708 This enables support for systems with more than one CPU. If you have
2704 a system with only one CPU, say N. 2709 a system with only one CPU, say N. If you have a system with more
2705 than one CPU, say Y. 2710 than one CPU, say Y.
2706 2711
2707 If you say N here, the kernel will 2712 If you say N here, the kernel will run on uni- and multiprocessor
2708 machines, but will use only one CPU 2713 machines, but will use only one CPU of a multiprocessor machine. If
2709 you say Y here, the kernel will run 2714 you say Y here, the kernel will run on many, but not all,
2710 uniprocessor machines. On a uniproc 2715 uniprocessor machines. On a uniprocessor machine, the kernel
2711 will run faster if you say N here. 2716 will run faster if you say N here.
2712 2717
2713 People using multiprocessor machine 2718 People using multiprocessor machines who say Y here should also say
2714 Y to "Enhanced Real Time Clock Supp 2719 Y to "Enhanced Real Time Clock Support", below.
2715 2720
2716 See also the SMP-HOWTO available at 2721 See also the SMP-HOWTO available at
2717 <https://www.tldp.org/docs.html#how 2722 <https://www.tldp.org/docs.html#howto>.
2718 2723
2719 If you don't know what to do here, 2724 If you don't know what to do here, say N.
2720 2725
2721 config HOTPLUG_CPU 2726 config HOTPLUG_CPU
2722 bool "Support for hot-pluggable CPUs" 2727 bool "Support for hot-pluggable CPUs"
2723 depends on SMP && SYS_SUPPORTS_HOTPLU 2728 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2724 help 2729 help
2725 Say Y here to allow turning CPUs of 2730 Say Y here to allow turning CPUs off and on. CPUs can be
2726 controlled through /sys/devices/sys 2731 controlled through /sys/devices/system/cpu.
2727 (Note: power management support wil 2732 (Note: power management support will enable this option
2728 automatically on SMP systems. ) 2733 automatically on SMP systems. )
2729 Say N if you want to disable CPU ho 2734 Say N if you want to disable CPU hotplug.
2730 2735
2731 config SMP_UP 2736 config SMP_UP
2732 bool 2737 bool
2733 2738
2734 config SYS_SUPPORTS_MIPS_CPS 2739 config SYS_SUPPORTS_MIPS_CPS
2735 bool 2740 bool
2736 2741
2737 config SYS_SUPPORTS_SMP 2742 config SYS_SUPPORTS_SMP
2738 bool 2743 bool
2739 2744
2740 config NR_CPUS_DEFAULT_4 2745 config NR_CPUS_DEFAULT_4
2741 bool 2746 bool
2742 2747
2743 config NR_CPUS_DEFAULT_8 2748 config NR_CPUS_DEFAULT_8
2744 bool 2749 bool
2745 2750
2746 config NR_CPUS_DEFAULT_16 2751 config NR_CPUS_DEFAULT_16
2747 bool 2752 bool
2748 2753
2749 config NR_CPUS_DEFAULT_32 2754 config NR_CPUS_DEFAULT_32
2750 bool 2755 bool
2751 2756
2752 config NR_CPUS_DEFAULT_64 2757 config NR_CPUS_DEFAULT_64
2753 bool 2758 bool
2754 2759
2755 config NR_CPUS 2760 config NR_CPUS
2756 int "Maximum number of CPUs (2-256)" 2761 int "Maximum number of CPUs (2-256)"
2757 range 2 256 2762 range 2 256
2758 depends on SMP 2763 depends on SMP
2759 default "4" if NR_CPUS_DEFAULT_4 2764 default "4" if NR_CPUS_DEFAULT_4
2760 default "8" if NR_CPUS_DEFAULT_8 2765 default "8" if NR_CPUS_DEFAULT_8
2761 default "16" if NR_CPUS_DEFAULT_16 2766 default "16" if NR_CPUS_DEFAULT_16
2762 default "32" if NR_CPUS_DEFAULT_32 2767 default "32" if NR_CPUS_DEFAULT_32
2763 default "64" if NR_CPUS_DEFAULT_64 2768 default "64" if NR_CPUS_DEFAULT_64
2764 help 2769 help
2765 This allows you to specify the maxi 2770 This allows you to specify the maximum number of CPUs which this
2766 kernel will support. The maximum s 2771 kernel will support. The maximum supported value is 32 for 32-bit
2767 kernel and 64 for 64-bit kernels; t 2772 kernel and 64 for 64-bit kernels; the minimum value which makes
2768 sense is 1 for Qemu (useful only fo 2773 sense is 1 for Qemu (useful only for kernel debugging purposes)
2769 and 2 for all others. 2774 and 2 for all others.
2770 2775
2771 This is purely to save memory - eac 2776 This is purely to save memory - each supported CPU adds
2772 approximately eight kilobytes to th 2777 approximately eight kilobytes to the kernel image. For best
2773 performance should round up your nu 2778 performance should round up your number of processors to the next
2774 power of two. 2779 power of two.
2775 2780
2776 config MIPS_PERF_SHARED_TC_COUNTERS 2781 config MIPS_PERF_SHARED_TC_COUNTERS
2777 bool 2782 bool
2778 2783
2779 config MIPS_NR_CPU_NR_MAP_1024 2784 config MIPS_NR_CPU_NR_MAP_1024
2780 bool 2785 bool
2781 2786
2782 config MIPS_NR_CPU_NR_MAP 2787 config MIPS_NR_CPU_NR_MAP
2783 int 2788 int
2784 depends on SMP 2789 depends on SMP
2785 default 1024 if MIPS_NR_CPU_NR_MAP_10 2790 default 1024 if MIPS_NR_CPU_NR_MAP_1024
2786 default NR_CPUS if !MIPS_NR_CPU_NR_MA 2791 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2787 2792
2788 # 2793 #
2789 # Timer Interrupt Frequency Configuration 2794 # Timer Interrupt Frequency Configuration
2790 # 2795 #
2791 2796
2792 choice 2797 choice
2793 prompt "Timer frequency" 2798 prompt "Timer frequency"
2794 default HZ_250 2799 default HZ_250
2795 help 2800 help
2796 Allows the configuration of the tim 2801 Allows the configuration of the timer frequency.
2797 2802
2798 config HZ_24 2803 config HZ_24
2799 bool "24 HZ" if SYS_SUPPORTS_ 2804 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2800 2805
2801 config HZ_48 2806 config HZ_48
2802 bool "48 HZ" if SYS_SUPPORTS_ 2807 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2803 2808
2804 config HZ_100 2809 config HZ_100
2805 bool "100 HZ" if SYS_SUPPORTS 2810 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2806 2811
2807 config HZ_128 2812 config HZ_128
2808 bool "128 HZ" if SYS_SUPPORTS 2813 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2809 2814
2810 config HZ_250 2815 config HZ_250
2811 bool "250 HZ" if SYS_SUPPORTS 2816 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2812 2817
2813 config HZ_256 2818 config HZ_256
2814 bool "256 HZ" if SYS_SUPPORTS 2819 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2815 2820
2816 config HZ_1000 2821 config HZ_1000
2817 bool "1000 HZ" if SYS_SUPPORT 2822 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2818 2823
2819 config HZ_1024 2824 config HZ_1024
2820 bool "1024 HZ" if SYS_SUPPORT 2825 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2821 2826
2822 endchoice 2827 endchoice
2823 2828
2824 config SYS_SUPPORTS_24HZ 2829 config SYS_SUPPORTS_24HZ
2825 bool 2830 bool
2826 2831
2827 config SYS_SUPPORTS_48HZ 2832 config SYS_SUPPORTS_48HZ
2828 bool 2833 bool
2829 2834
2830 config SYS_SUPPORTS_100HZ 2835 config SYS_SUPPORTS_100HZ
2831 bool 2836 bool
2832 2837
2833 config SYS_SUPPORTS_128HZ 2838 config SYS_SUPPORTS_128HZ
2834 bool 2839 bool
2835 2840
2836 config SYS_SUPPORTS_250HZ 2841 config SYS_SUPPORTS_250HZ
2837 bool 2842 bool
2838 2843
2839 config SYS_SUPPORTS_256HZ 2844 config SYS_SUPPORTS_256HZ
2840 bool 2845 bool
2841 2846
2842 config SYS_SUPPORTS_1000HZ 2847 config SYS_SUPPORTS_1000HZ
2843 bool 2848 bool
2844 2849
2845 config SYS_SUPPORTS_1024HZ 2850 config SYS_SUPPORTS_1024HZ
2846 bool 2851 bool
2847 2852
2848 config SYS_SUPPORTS_ARBIT_HZ 2853 config SYS_SUPPORTS_ARBIT_HZ
2849 bool 2854 bool
2850 default y if !SYS_SUPPORTS_24HZ && \ 2855 default y if !SYS_SUPPORTS_24HZ && \
2851 !SYS_SUPPORTS_48HZ && \ 2856 !SYS_SUPPORTS_48HZ && \
2852 !SYS_SUPPORTS_100HZ && \ 2857 !SYS_SUPPORTS_100HZ && \
2853 !SYS_SUPPORTS_128HZ && \ 2858 !SYS_SUPPORTS_128HZ && \
2854 !SYS_SUPPORTS_250HZ && \ 2859 !SYS_SUPPORTS_250HZ && \
2855 !SYS_SUPPORTS_256HZ && \ 2860 !SYS_SUPPORTS_256HZ && \
2856 !SYS_SUPPORTS_1000HZ && 2861 !SYS_SUPPORTS_1000HZ && \
2857 !SYS_SUPPORTS_1024HZ 2862 !SYS_SUPPORTS_1024HZ
2858 2863
2859 config HZ 2864 config HZ
2860 int 2865 int
2861 default 24 if HZ_24 2866 default 24 if HZ_24
2862 default 48 if HZ_48 2867 default 48 if HZ_48
2863 default 100 if HZ_100 2868 default 100 if HZ_100
2864 default 128 if HZ_128 2869 default 128 if HZ_128
2865 default 250 if HZ_250 2870 default 250 if HZ_250
2866 default 256 if HZ_256 2871 default 256 if HZ_256
2867 default 1000 if HZ_1000 2872 default 1000 if HZ_1000
2868 default 1024 if HZ_1024 2873 default 1024 if HZ_1024
2869 2874
2870 config SCHED_HRTICK 2875 config SCHED_HRTICK
2871 def_bool HIGH_RES_TIMERS 2876 def_bool HIGH_RES_TIMERS
2872 2877
2873 config ARCH_SUPPORTS_KEXEC 2878 config ARCH_SUPPORTS_KEXEC
2874 def_bool y 2879 def_bool y
2875 2880
2876 config ARCH_SUPPORTS_CRASH_DUMP 2881 config ARCH_SUPPORTS_CRASH_DUMP
2877 def_bool y 2882 def_bool y
2878 2883
2879 config PHYSICAL_START 2884 config PHYSICAL_START
2880 hex "Physical address where the kerne 2885 hex "Physical address where the kernel is loaded"
2881 default "0xffffffff84000000" 2886 default "0xffffffff84000000"
2882 depends on CRASH_DUMP 2887 depends on CRASH_DUMP
2883 help 2888 help
2884 This gives the CKSEG0 or KSEG0 addr 2889 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2885 If you plan to use kernel for captu 2890 If you plan to use kernel for capturing the crash dump change
2886 this value to start of the reserved 2891 this value to start of the reserved region (the "X" value as
2887 specified in the "crashkernel=YM@XM 2892 specified in the "crashkernel=YM@XM" command line boot parameter
2888 passed to the panic-ed kernel). 2893 passed to the panic-ed kernel).
2889 2894
2890 config MIPS_O32_FP64_SUPPORT 2895 config MIPS_O32_FP64_SUPPORT
2891 bool "Support for O32 binaries using 2896 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2892 depends on 32BIT || MIPS32_O32 2897 depends on 32BIT || MIPS32_O32
2893 help 2898 help
2894 When this is enabled, the kernel wi 2899 When this is enabled, the kernel will support use of 64-bit floating
2895 point registers with binaries using 2900 point registers with binaries using the O32 ABI along with the
2896 EF_MIPS_FP64 ELF header flag (typic 2901 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2897 32-bit MIPS systems this support is 2902 32-bit MIPS systems this support is at the cost of increasing the
2898 size and complexity of the compiled 2903 size and complexity of the compiled FPU emulator. Thus if you are
2899 running a MIPS32 system and know th 2904 running a MIPS32 system and know that none of your userland binaries
2900 will require 64-bit floating point, 2905 will require 64-bit floating point, you may wish to reduce the size
2901 of your kernel & potentially improv 2906 of your kernel & potentially improve FP emulation performance by
2902 saying N here. 2907 saying N here.
2903 2908
2904 Although binutils currently support 2909 Although binutils currently supports use of this flag the details
2905 concerning its effect upon the O32 2910 concerning its effect upon the O32 ABI in userland are still being
2906 worked on. In order to avoid userla 2911 worked on. In order to avoid userland becoming dependent upon current
2907 behaviour before the details have b 2912 behaviour before the details have been finalised, this option should
2908 be considered experimental and only 2913 be considered experimental and only enabled by those working upon
2909 said details. 2914 said details.
2910 2915
2911 If unsure, say N. 2916 If unsure, say N.
2912 2917
2913 config USE_OF 2918 config USE_OF
2914 bool 2919 bool
2915 select OF 2920 select OF
2916 select OF_EARLY_FLATTREE 2921 select OF_EARLY_FLATTREE
2917 select IRQ_DOMAIN 2922 select IRQ_DOMAIN
2918 2923
2919 config UHI_BOOT 2924 config UHI_BOOT
2920 bool 2925 bool
2921 2926
2922 config BUILTIN_DTB 2927 config BUILTIN_DTB
2923 bool 2928 bool
2924 2929
2925 choice 2930 choice
2926 prompt "Kernel appended dtb support" 2931 prompt "Kernel appended dtb support"
2927 depends on USE_OF 2932 depends on USE_OF
2928 default MIPS_NO_APPENDED_DTB 2933 default MIPS_NO_APPENDED_DTB
2929 2934
2930 config MIPS_NO_APPENDED_DTB 2935 config MIPS_NO_APPENDED_DTB
2931 bool "None" 2936 bool "None"
2932 help 2937 help
2933 Do not enable appended dtb 2938 Do not enable appended dtb support.
2934 2939
2935 config MIPS_ELF_APPENDED_DTB 2940 config MIPS_ELF_APPENDED_DTB
2936 bool "vmlinux" 2941 bool "vmlinux"
2937 help 2942 help
2938 With this option, the boot 2943 With this option, the boot code will look for a device tree binary
2939 DTB) included in the vmlinu 2944 DTB) included in the vmlinux ELF section .appended_dtb. By default
2940 it is empty and the DTB can 2945 it is empty and the DTB can be appended using binutils command
2941 objcopy: 2946 objcopy:
2942 2947
2943 objcopy --update-section 2948 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2944 2949
2945 This is meant as a backward 2950 This is meant as a backward compatibility convenience for those
2946 systems with a bootloader t 2951 systems with a bootloader that can't be upgraded to accommodate
2947 the documented boot protoco 2952 the documented boot protocol using a device tree.
2948 2953
2949 config MIPS_RAW_APPENDED_DTB 2954 config MIPS_RAW_APPENDED_DTB
2950 bool "vmlinux.bin or vmlinuz. 2955 bool "vmlinux.bin or vmlinuz.bin"
2951 help 2956 help
2952 With this option, the boot 2957 With this option, the boot code will look for a device tree binary
2953 DTB) appended to raw vmlinu 2958 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
2954 (e.g. cat vmlinux.bin <file 2959 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2955 2960
2956 This is meant as a backward 2961 This is meant as a backward compatibility convenience for those
2957 systems with a bootloader t 2962 systems with a bootloader that can't be upgraded to accommodate
2958 the documented boot protoco 2963 the documented boot protocol using a device tree.
2959 2964
2960 Beware that there is very l 2965 Beware that there is very little in terms of protection against
2961 this option being confused 2966 this option being confused by leftover garbage in memory that might
2962 look like a DTB header afte 2967 look like a DTB header after a reboot if no actual DTB is appended
2963 to vmlinux.bin. Do not lea 2968 to vmlinux.bin. Do not leave this option active in a production kernel
2964 if you don't intend to alwa 2969 if you don't intend to always append a DTB.
2965 endchoice 2970 endchoice
2966 2971
2967 choice 2972 choice
2968 prompt "Kernel command line type" 2973 prompt "Kernel command line type"
2969 depends on !CMDLINE_OVERRIDE 2974 depends on !CMDLINE_OVERRIDE
2970 default MIPS_CMDLINE_FROM_DTB if USE_ 2975 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2971 !MAC 2976 !MACH_LOONGSON64 && !MIPS_MALTA && \
2972 !CAV 2977 !CAVIUM_OCTEON_SOC
2973 default MIPS_CMDLINE_FROM_BOOTLOADER 2978 default MIPS_CMDLINE_FROM_BOOTLOADER
2974 2979
2975 config MIPS_CMDLINE_FROM_DTB 2980 config MIPS_CMDLINE_FROM_DTB
2976 depends on USE_OF 2981 depends on USE_OF
2977 bool "Dtb kernel arguments if 2982 bool "Dtb kernel arguments if available"
2978 2983
2979 config MIPS_CMDLINE_DTB_EXTEND 2984 config MIPS_CMDLINE_DTB_EXTEND
2980 depends on USE_OF 2985 depends on USE_OF
2981 bool "Extend dtb kernel argum 2986 bool "Extend dtb kernel arguments with bootloader arguments"
2982 2987
2983 config MIPS_CMDLINE_FROM_BOOTLOADER 2988 config MIPS_CMDLINE_FROM_BOOTLOADER
2984 bool "Bootloader kernel argum 2989 bool "Bootloader kernel arguments if available"
2985 2990
2986 config MIPS_CMDLINE_BUILTIN_EXTEND 2991 config MIPS_CMDLINE_BUILTIN_EXTEND
2987 depends on CMDLINE_BOOL 2992 depends on CMDLINE_BOOL
2988 bool "Extend builtin kernel a 2993 bool "Extend builtin kernel arguments with bootloader arguments"
2989 endchoice 2994 endchoice
2990 2995
2991 endmenu 2996 endmenu
2992 2997
2993 config LOCKDEP_SUPPORT 2998 config LOCKDEP_SUPPORT
2994 bool 2999 bool
2995 default y 3000 default y
2996 3001
2997 config STACKTRACE_SUPPORT 3002 config STACKTRACE_SUPPORT
2998 bool 3003 bool
2999 default y 3004 default y
3000 3005
3001 config PGTABLE_LEVELS 3006 config PGTABLE_LEVELS
3002 int 3007 int
3003 default 4 if PAGE_SIZE_4KB && MIPS_VA 3008 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3004 default 3 if 64BIT && (!PAGE_SIZE_64K 3009 default 3 if 64BIT && (!PAGE_SIZE_64KB || MIPS_VA_BITS_48)
3005 default 2 3010 default 2
3006 3011
3007 config MIPS_AUTO_PFN_OFFSET 3012 config MIPS_AUTO_PFN_OFFSET
3008 bool 3013 bool
3009 3014
3010 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC 3015 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3011 3016
3012 config PCI_DRIVERS_GENERIC 3017 config PCI_DRIVERS_GENERIC
3013 select PCI_DOMAINS_GENERIC if PCI 3018 select PCI_DOMAINS_GENERIC if PCI
3014 bool 3019 bool
3015 3020
3016 config PCI_DRIVERS_LEGACY 3021 config PCI_DRIVERS_LEGACY
3017 def_bool !PCI_DRIVERS_GENERIC 3022 def_bool !PCI_DRIVERS_GENERIC
3018 select NO_GENERIC_PCI_IOPORT_MAP 3023 select NO_GENERIC_PCI_IOPORT_MAP
3019 select PCI_DOMAINS if PCI 3024 select PCI_DOMAINS if PCI
3020 3025
3021 # 3026 #
3022 # ISA support is now enabled via select. Too 3027 # ISA support is now enabled via select. Too many systems still have the one
3023 # or other ISA chip on the board that users d 3028 # or other ISA chip on the board that users don't know about so don't expect
3024 # users to choose the right thing ... 3029 # users to choose the right thing ...
3025 # 3030 #
3026 config ISA 3031 config ISA
3027 bool 3032 bool
3028 3033
3029 config TC 3034 config TC
3030 bool "TURBOchannel support" 3035 bool "TURBOchannel support"
3031 depends on MACH_DECSTATION 3036 depends on MACH_DECSTATION
3032 help 3037 help
3033 TURBOchannel is a DEC (now Compaq ( 3038 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3034 processors. TURBOchannel programmi 3039 processors. TURBOchannel programming specifications are available
3035 at: 3040 at:
3036 <ftp://ftp.hp.com/pub/alphaserver/a 3041 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3037 and: 3042 and:
3038 <http://www.computer-refuge.org/cla 3043 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3039 Linux driver support status is docu 3044 Linux driver support status is documented at:
3040 <http://www.linux-mips.org/wiki/DEC 3045 <http://www.linux-mips.org/wiki/DECstation>
3041 3046
3042 config MMU 3047 config MMU
3043 bool 3048 bool
3044 default y 3049 default y
3045 3050
3046 config ARCH_MMAP_RND_BITS_MIN 3051 config ARCH_MMAP_RND_BITS_MIN
3047 default 12 if 64BIT 3052 default 12 if 64BIT
3048 default 8 3053 default 8
3049 3054
3050 config ARCH_MMAP_RND_BITS_MAX 3055 config ARCH_MMAP_RND_BITS_MAX
3051 default 18 if 64BIT 3056 default 18 if 64BIT
3052 default 15 3057 default 15
3053 3058
3054 config ARCH_MMAP_RND_COMPAT_BITS_MIN 3059 config ARCH_MMAP_RND_COMPAT_BITS_MIN
3055 default 8 3060 default 8
3056 3061
3057 config ARCH_MMAP_RND_COMPAT_BITS_MAX 3062 config ARCH_MMAP_RND_COMPAT_BITS_MAX
3058 default 15 3063 default 15
3059 3064
3060 config I8253 3065 config I8253
3061 bool 3066 bool
3062 select CLKSRC_I8253 3067 select CLKSRC_I8253
3063 select CLKEVT_I8253 3068 select CLKEVT_I8253
3064 select MIPS_EXTERNAL_TIMER 3069 select MIPS_EXTERNAL_TIMER
3065 endmenu 3070 endmenu
3066 3071
3067 config TRAD_SIGNALS 3072 config TRAD_SIGNALS
3068 bool 3073 bool
3069 3074
3070 config MIPS32_COMPAT 3075 config MIPS32_COMPAT
3071 bool 3076 bool
3072 3077
3073 config COMPAT 3078 config COMPAT
3074 bool 3079 bool
3075 3080
3076 config MIPS32_O32 3081 config MIPS32_O32
3077 bool "Kernel support for o32 binaries 3082 bool "Kernel support for o32 binaries"
3078 depends on 64BIT 3083 depends on 64BIT
3079 select ARCH_WANT_OLD_COMPAT_IPC 3084 select ARCH_WANT_OLD_COMPAT_IPC
3080 select COMPAT 3085 select COMPAT
3081 select MIPS32_COMPAT 3086 select MIPS32_COMPAT
3082 help 3087 help
3083 Select this option if you want to r 3088 Select this option if you want to run o32 binaries. These are pure
3084 32-bit binaries as used by the 32-b 3089 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3085 existing binaries are in this forma 3090 existing binaries are in this format.
3086 3091
3087 If unsure, say Y. 3092 If unsure, say Y.
3088 3093
3089 config MIPS32_N32 3094 config MIPS32_N32
3090 bool "Kernel support for n32 binaries 3095 bool "Kernel support for n32 binaries"
3091 depends on 64BIT 3096 depends on 64BIT
3092 select ARCH_WANT_COMPAT_IPC_PARSE_VER 3097 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3093 select COMPAT 3098 select COMPAT
3094 select MIPS32_COMPAT 3099 select MIPS32_COMPAT
3095 help 3100 help
3096 Select this option if you want to r 3101 Select this option if you want to run n32 binaries. These are
3097 64-bit binaries using 32-bit quanti 3102 64-bit binaries using 32-bit quantities for addressing and certain
3098 data that would normally be 64-bit. 3103 data that would normally be 64-bit. They are used in special
3099 cases. 3104 cases.
3100 3105
3101 If unsure, say N. 3106 If unsure, say N.
3102 3107
3103 config CC_HAS_MNO_BRANCH_LIKELY 3108 config CC_HAS_MNO_BRANCH_LIKELY
3104 def_bool y 3109 def_bool y
3105 depends on $(cc-option,-mno-branch-li 3110 depends on $(cc-option,-mno-branch-likely)
3106 3111
3107 # https://github.com/llvm/llvm-project/issues 3112 # https://github.com/llvm/llvm-project/issues/61045
3108 config CC_HAS_BROKEN_INLINE_COMPAT_BRANCH 3113 config CC_HAS_BROKEN_INLINE_COMPAT_BRANCH
3109 def_bool y if CC_IS_CLANG 3114 def_bool y if CC_IS_CLANG
3110 3115
3111 menu "Power management options" 3116 menu "Power management options"
3112 3117
3113 config ARCH_HIBERNATION_POSSIBLE 3118 config ARCH_HIBERNATION_POSSIBLE
3114 def_bool y 3119 def_bool y
3115 depends on SYS_SUPPORTS_HOTPLUG_CPU | 3120 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3116 3121
3117 config ARCH_SUSPEND_POSSIBLE 3122 config ARCH_SUSPEND_POSSIBLE
3118 def_bool y 3123 def_bool y
3119 depends on SYS_SUPPORTS_HOTPLUG_CPU | 3124 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3120 3125
3121 source "kernel/power/Kconfig" 3126 source "kernel/power/Kconfig"
3122 3127
3123 endmenu 3128 endmenu
3124 3129
3125 config MIPS_EXTERNAL_TIMER 3130 config MIPS_EXTERNAL_TIMER
3126 bool 3131 bool
3127 3132
3128 menu "CPU Power Management" 3133 menu "CPU Power Management"
3129 3134
3130 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIME 3135 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3131 source "drivers/cpufreq/Kconfig" 3136 source "drivers/cpufreq/Kconfig"
3132 endif # CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL 3137 endif # CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3133 3138
3134 source "drivers/cpuidle/Kconfig" 3139 source "drivers/cpuidle/Kconfig"
3135 3140
3136 endmenu 3141 endmenu
3137 3142
3138 source "arch/mips/kvm/Kconfig" 3143 source "arch/mips/kvm/Kconfig"
3139 3144
3140 source "arch/mips/vdso/Kconfig" 3145 source "arch/mips/vdso/Kconfig"
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