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