1 # SPDX-License-Identifier: GPL-2.0-only 1 # SPDX-License-Identifier: GPL-2.0-only
2 config 64BIT 2 config 64BIT
3 bool "64-bit kernel" if "$(ARCH)" = "s 3 bool "64-bit kernel" if "$(ARCH)" = "sparc"
4 default "$(ARCH)" = "sparc64" 4 default "$(ARCH)" = "sparc64"
5 help 5 help
6 SPARC is a family of RISC microproce 6 SPARC is a family of RISC microprocessors designed and marketed by
7 Sun Microsystems, incorporated. The 7 Sun Microsystems, incorporated. They are very widely found in Sun
8 workstations and clones. 8 workstations and clones.
9 9
10 Say yes to build a 64-bit kernel - f 10 Say yes to build a 64-bit kernel - formerly known as sparc64
11 Say no to build a 32-bit kernel - fo 11 Say no to build a 32-bit kernel - formerly known as sparc
12 12
13 config SPARC 13 config SPARC
14 bool 14 bool
15 default y 15 default y
16 select ARCH_HAS_CPU_CACHE_ALIASING <<
17 select ARCH_HAS_DMA_OPS <<
18 select ARCH_MIGHT_HAVE_PC_PARPORT if S 16 select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
19 select ARCH_MIGHT_HAVE_PC_SERIO 17 select ARCH_MIGHT_HAVE_PC_SERIO
20 select OF 18 select OF
21 select OF_PROMTREE 19 select OF_PROMTREE
22 select HAVE_ASM_MODVERSIONS 20 select HAVE_ASM_MODVERSIONS
>> 21 select HAVE_IDE
>> 22 select HAVE_OPROFILE
23 select HAVE_ARCH_KGDB if !SMP || SPARC 23 select HAVE_ARCH_KGDB if !SMP || SPARC64
24 select HAVE_ARCH_TRACEHOOK 24 select HAVE_ARCH_TRACEHOOK
25 select HAVE_ARCH_SECCOMP if SPARC64 <<
26 select HAVE_EXIT_THREAD 25 select HAVE_EXIT_THREAD
27 select HAVE_PCI 26 select HAVE_PCI
28 select SYSCTL_EXCEPTION_TRACE 27 select SYSCTL_EXCEPTION_TRACE
29 select RTC_CLASS 28 select RTC_CLASS
30 select RTC_DRV_M48T59 29 select RTC_DRV_M48T59
31 select RTC_SYSTOHC 30 select RTC_SYSTOHC
32 select HAVE_ARCH_JUMP_LABEL if SPARC64 31 select HAVE_ARCH_JUMP_LABEL if SPARC64
33 select GENERIC_IRQ_SHOW 32 select GENERIC_IRQ_SHOW
34 select ARCH_WANT_IPC_PARSE_VERSION 33 select ARCH_WANT_IPC_PARSE_VERSION
35 select GENERIC_PCI_IOMAP 34 select GENERIC_PCI_IOMAP
36 select HAS_IOPORT !! 35 select HAVE_NMI_WATCHDOG if SPARC64
37 select HAVE_HARDLOCKUP_DETECTOR_SPARC6 <<
38 select HAVE_CBPF_JIT if SPARC32 36 select HAVE_CBPF_JIT if SPARC32
39 select HAVE_EBPF_JIT if SPARC64 37 select HAVE_EBPF_JIT if SPARC64
40 select HAVE_DEBUG_BUGVERBOSE 38 select HAVE_DEBUG_BUGVERBOSE
41 select GENERIC_SMP_IDLE_THREAD 39 select GENERIC_SMP_IDLE_THREAD
>> 40 select GENERIC_CLOCKEVENTS
>> 41 select GENERIC_STRNCPY_FROM_USER
>> 42 select GENERIC_STRNLEN_USER
42 select MODULES_USE_ELF_RELA 43 select MODULES_USE_ELF_RELA
43 select PCI_SYSCALL if PCI 44 select PCI_SYSCALL if PCI
44 select PCI_MSI_ARCH_FALLBACKS if PCI_M <<
45 select ODD_RT_SIGACTION 45 select ODD_RT_SIGACTION
46 select OLD_SIGSUSPEND 46 select OLD_SIGSUSPEND
47 select CPU_NO_EFFICIENT_FFS 47 select CPU_NO_EFFICIENT_FFS
48 select LOCKDEP_SMALL if LOCKDEP 48 select LOCKDEP_SMALL if LOCKDEP
49 select NEED_DMA_MAP_STATE 49 select NEED_DMA_MAP_STATE
50 select NEED_SG_DMA_LENGTH 50 select NEED_SG_DMA_LENGTH
51 select TRACE_IRQFLAGS_SUPPORT <<
52 51
53 config SPARC32 52 config SPARC32
54 def_bool !64BIT 53 def_bool !64BIT
55 select ARCH_32BIT_OFF_T 54 select ARCH_32BIT_OFF_T
56 select ARCH_HAS_CPU_FINALIZE_INIT if ! 55 select ARCH_HAS_CPU_FINALIZE_INIT if !SMP
57 select ARCH_HAS_SYNC_DMA_FOR_CPU 56 select ARCH_HAS_SYNC_DMA_FOR_CPU
58 select CLZ_TAB <<
59 select DMA_DIRECT_REMAP <<
60 select GENERIC_ATOMIC64 57 select GENERIC_ATOMIC64
61 select GENERIC_LIB_CMPDI2 !! 58 select CLZ_TAB
62 select GENERIC_LIB_UCMPDI2 <<
63 select HAVE_UID16 59 select HAVE_UID16
64 select HAVE_PAGE_SIZE_4KB <<
65 select LOCK_MM_AND_FIND_VMA <<
66 select OLD_SIGACTION 60 select OLD_SIGACTION
67 select ZONE_DMA <<
68 61
69 config SPARC64 62 config SPARC64
70 def_bool 64BIT 63 def_bool 64BIT
71 select ALTERNATE_USER_ADDRESS_SPACE <<
72 select HAVE_FUNCTION_TRACER 64 select HAVE_FUNCTION_TRACER
73 select HAVE_FUNCTION_GRAPH_TRACER 65 select HAVE_FUNCTION_GRAPH_TRACER
74 select HAVE_KRETPROBES 66 select HAVE_KRETPROBES
75 select HAVE_KPROBES 67 select HAVE_KPROBES
76 select MMU_GATHER_RCU_TABLE_FREE if SM !! 68 select HAVE_RCU_TABLE_FREE if SMP
77 select MMU_GATHER_MERGE_VMAS !! 69 select HAVE_MEMBLOCK_NODE_MAP
78 select MMU_GATHER_NO_FLUSH_CACHE <<
79 select HAVE_ARCH_TRANSPARENT_HUGEPAGE 70 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
80 select HAVE_DYNAMIC_FTRACE 71 select HAVE_DYNAMIC_FTRACE
81 select HAVE_FTRACE_MCOUNT_RECORD 72 select HAVE_FTRACE_MCOUNT_RECORD
82 select HAVE_PAGE_SIZE_8KB <<
83 select HAVE_SYSCALL_TRACEPOINTS 73 select HAVE_SYSCALL_TRACEPOINTS
84 select HAVE_CONTEXT_TRACKING_USER !! 74 select HAVE_CONTEXT_TRACKING
85 select HAVE_TIF_NOHZ <<
86 select HAVE_DEBUG_KMEMLEAK 75 select HAVE_DEBUG_KMEMLEAK
87 select IOMMU_HELPER 76 select IOMMU_HELPER
88 select SPARSE_IRQ 77 select SPARSE_IRQ
89 select RTC_DRV_CMOS 78 select RTC_DRV_CMOS
90 select RTC_DRV_BQ4802 79 select RTC_DRV_BQ4802
91 select RTC_DRV_SUN4V 80 select RTC_DRV_SUN4V
92 select RTC_DRV_STARFIRE 81 select RTC_DRV_STARFIRE
93 select HAVE_PERF_EVENTS 82 select HAVE_PERF_EVENTS
94 select PERF_USE_VMALLOC 83 select PERF_USE_VMALLOC
>> 84 select IRQ_PREFLOW_FASTEOI
95 select ARCH_HAVE_NMI_SAFE_CMPXCHG 85 select ARCH_HAVE_NMI_SAFE_CMPXCHG
96 select HAVE_C_RECORDMCOUNT 86 select HAVE_C_RECORDMCOUNT
97 select HAVE_ARCH_AUDITSYSCALL 87 select HAVE_ARCH_AUDITSYSCALL
98 select ARCH_SUPPORTS_ATOMIC_RMW 88 select ARCH_SUPPORTS_ATOMIC_RMW
99 select ARCH_SUPPORTS_DEBUG_PAGEALLOC <<
100 select HAVE_NMI 89 select HAVE_NMI
101 select HAVE_REGS_AND_STACK_ACCESS_API 90 select HAVE_REGS_AND_STACK_ACCESS_API
102 select ARCH_USE_QUEUED_RWLOCKS 91 select ARCH_USE_QUEUED_RWLOCKS
103 select ARCH_USE_QUEUED_SPINLOCKS 92 select ARCH_USE_QUEUED_SPINLOCKS
104 select GENERIC_TIME_VSYSCALL 93 select GENERIC_TIME_VSYSCALL
105 select ARCH_CLOCKSOURCE_DATA 94 select ARCH_CLOCKSOURCE_DATA
106 select ARCH_HAS_PTE_SPECIAL 95 select ARCH_HAS_PTE_SPECIAL
107 select PCI_DOMAINS if PCI 96 select PCI_DOMAINS if PCI
108 select ARCH_HAS_GIGANTIC_PAGE 97 select ARCH_HAS_GIGANTIC_PAGE
109 select HAVE_SOFTIRQ_ON_OWN_STACK !! 98
110 select HAVE_SETUP_PER_CPU_AREA !! 99 config ARCH_DEFCONFIG
111 select NEED_PER_CPU_EMBED_FIRST_CHUNK !! 100 string
112 select NEED_PER_CPU_PAGE_FIRST_CHUNK !! 101 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
>> 102 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
113 103
114 config ARCH_PROC_KCORE_TEXT 104 config ARCH_PROC_KCORE_TEXT
115 def_bool y 105 def_bool y
116 106
117 config CPU_BIG_ENDIAN 107 config CPU_BIG_ENDIAN
118 def_bool y 108 def_bool y
119 109
>> 110 config ARCH_ATU
>> 111 bool
>> 112 default y if SPARC64
>> 113
120 config STACKTRACE_SUPPORT 114 config STACKTRACE_SUPPORT
121 bool 115 bool
122 default y if SPARC64 116 default y if SPARC64
123 117
124 config LOCKDEP_SUPPORT 118 config LOCKDEP_SUPPORT
125 bool 119 bool
126 default y if SPARC64 120 default y if SPARC64
127 121
128 config ARCH_HIBERNATION_POSSIBLE 122 config ARCH_HIBERNATION_POSSIBLE
129 def_bool y if SPARC64 123 def_bool y if SPARC64
130 124
131 config AUDIT_ARCH 125 config AUDIT_ARCH
132 bool 126 bool
133 default y 127 default y
134 128
>> 129 config HAVE_SETUP_PER_CPU_AREA
>> 130 def_bool y if SPARC64
>> 131
>> 132 config NEED_PER_CPU_EMBED_FIRST_CHUNK
>> 133 def_bool y if SPARC64
>> 134
>> 135 config NEED_PER_CPU_PAGE_FIRST_CHUNK
>> 136 def_bool y if SPARC64
>> 137
135 config MMU 138 config MMU
136 bool 139 bool
137 default y 140 default y
138 141
139 config HIGHMEM 142 config HIGHMEM
140 bool 143 bool
141 default y if SPARC32 144 default y if SPARC32
142 select KMAP_LOCAL !! 145
>> 146 config ZONE_DMA
>> 147 bool
>> 148 default y if SPARC32
>> 149
>> 150 config GENERIC_ISA_DMA
>> 151 bool
>> 152 default y if SPARC32
>> 153
>> 154 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
>> 155 def_bool y if SPARC64
143 156
144 config PGTABLE_LEVELS 157 config PGTABLE_LEVELS
145 default 4 if 64BIT 158 default 4 if 64BIT
146 default 3 159 default 3
147 160
148 config ARCH_SUPPORTS_UPROBES 161 config ARCH_SUPPORTS_UPROBES
149 def_bool y if SPARC64 162 def_bool y if SPARC64
150 163
151 menu "Processor type and features" 164 menu "Processor type and features"
152 165
153 config SMP 166 config SMP
154 bool "Symmetric multi-processing suppo 167 bool "Symmetric multi-processing support"
155 help !! 168 ---help---
156 This enables support for systems wit 169 This enables support for systems with more than one CPU. If you have
157 a system with only one CPU, say N. I 170 a system with only one CPU, say N. If you have a system with more
158 than one CPU, say Y. 171 than one CPU, say Y.
159 172
160 If you say N here, the kernel will r 173 If you say N here, the kernel will run on uni- and multiprocessor
161 machines, but will use only one CPU 174 machines, but will use only one CPU of a multiprocessor machine. If
162 you say Y here, the kernel will run 175 you say Y here, the kernel will run on many, but not all,
163 uniprocessor machines. On a uniproce 176 uniprocessor machines. On a uniprocessor machine, the kernel
164 will run faster if you say N here. 177 will run faster if you say N here.
165 178
166 People using multiprocessor machines 179 People using multiprocessor machines who say Y here should also say
167 Y to "Enhanced Real Time Clock Suppo 180 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
168 Management" code will be disabled if 181 Management" code will be disabled if you say Y here.
169 182
170 See also <file:Documentation/admin-g 183 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
171 available at <https://www.tldp.org/d !! 184 available at <http://www.tldp.org/docs.html#howto>.
172 185
173 If you don't know what to do here, s 186 If you don't know what to do here, say N.
174 187
175 config NR_CPUS 188 config NR_CPUS
176 int "Maximum number of CPUs" 189 int "Maximum number of CPUs"
177 depends on SMP 190 depends on SMP
178 range 2 32 if SPARC32 191 range 2 32 if SPARC32
179 range 2 4096 if SPARC64 192 range 2 4096 if SPARC64
180 default 32 if SPARC32 193 default 32 if SPARC32
181 default 4096 if SPARC64 194 default 4096 if SPARC64
182 195
183 source "kernel/Kconfig.hz" 196 source "kernel/Kconfig.hz"
184 197
185 config GENERIC_HWEIGHT 198 config GENERIC_HWEIGHT
186 bool 199 bool
187 default y 200 default y
188 201
189 config GENERIC_CALIBRATE_DELAY 202 config GENERIC_CALIBRATE_DELAY
190 bool 203 bool
191 default y 204 default y
192 205
193 config ARCH_MAY_HAVE_PC_FDC 206 config ARCH_MAY_HAVE_PC_FDC
194 bool 207 bool
195 default y 208 default y
196 209
197 config EMULATED_CMPXCHG 210 config EMULATED_CMPXCHG
198 bool 211 bool
199 default y if SPARC32 212 default y if SPARC32
200 help 213 help
201 Sparc32 does not have a CAS instruct 214 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
202 is emulated, and therefore it is not 215 is emulated, and therefore it is not completely atomic.
203 216
204 # Makefile helpers 217 # Makefile helpers
205 config SPARC32_SMP 218 config SPARC32_SMP
206 bool 219 bool
207 default y 220 default y
208 depends on SPARC32 && SMP 221 depends on SPARC32 && SMP
209 222
210 config SPARC64_SMP 223 config SPARC64_SMP
211 bool 224 bool
212 default y 225 default y
213 depends on SPARC64 && SMP 226 depends on SPARC64 && SMP
214 227
215 config EARLYFB 228 config EARLYFB
216 bool "Support for early boot text cons 229 bool "Support for early boot text console"
217 default y 230 default y
218 depends on SPARC64 231 depends on SPARC64
219 select FONT_SUN8x16 <<
220 select FONT_SUPPORT <<
221 help 232 help
222 Say Y here to enable a faster early 233 Say Y here to enable a faster early framebuffer boot console.
223 234
>> 235 config SECCOMP
>> 236 bool "Enable seccomp to safely compute untrusted bytecode"
>> 237 depends on SPARC64 && PROC_FS
>> 238 default y
>> 239 help
>> 240 This kernel feature is useful for number crunching applications
>> 241 that may need to compute untrusted bytecode during their
>> 242 execution. By using pipes or other transports made available to
>> 243 the process as file descriptors supporting the read/write
>> 244 syscalls, it's possible to isolate those applications in
>> 245 their own address space using seccomp. Once seccomp is
>> 246 enabled via /proc/<pid>/seccomp, it cannot be disabled
>> 247 and the task is only allowed to execute a few safe syscalls
>> 248 defined by each seccomp mode.
>> 249
>> 250 If unsure, say Y. Only embedded should say N here.
>> 251
224 config HOTPLUG_CPU 252 config HOTPLUG_CPU
225 bool "Support for hot-pluggable CPUs" 253 bool "Support for hot-pluggable CPUs"
226 depends on SPARC64 && SMP 254 depends on SPARC64 && SMP
227 help 255 help
228 Say Y here to experiment with turnin 256 Say Y here to experiment with turning CPUs off and on. CPUs
229 can be controlled through /sys/devic 257 can be controlled through /sys/devices/system/cpu/cpu#.
230 Say N if you want to disable CPU hot 258 Say N if you want to disable CPU hotplug.
231 259
232 if SPARC64 260 if SPARC64
233 source "drivers/cpufreq/Kconfig" 261 source "drivers/cpufreq/Kconfig"
234 endif 262 endif
235 263
236 config US3_MC 264 config US3_MC
237 tristate "UltraSPARC-III Memory Contro 265 tristate "UltraSPARC-III Memory Controller driver"
238 depends on SPARC64 266 depends on SPARC64
239 default y 267 default y
240 help 268 help
241 This adds a driver for the UltraSPAR 269 This adds a driver for the UltraSPARC-III memory controller.
242 Loading this driver allows exact mne 270 Loading this driver allows exact mnemonic strings to be
243 printed in the event of a memory err 271 printed in the event of a memory error, so that the faulty DIMM
244 on the motherboard can be matched to 272 on the motherboard can be matched to the error.
245 273
246 If in doubt, say Y, as this informat 274 If in doubt, say Y, as this information can be very useful.
247 275
248 # Global things across all Sun machines. 276 # Global things across all Sun machines.
249 config GENERIC_LOCKBREAK 277 config GENERIC_LOCKBREAK
250 bool 278 bool
251 default y 279 default y
252 depends on SPARC64 && SMP && PREEMPTIO !! 280 depends on SPARC64 && SMP && PREEMPT
253 281
254 config NUMA 282 config NUMA
255 bool "NUMA support" 283 bool "NUMA support"
256 depends on SPARC64 && SMP 284 depends on SPARC64 && SMP
257 285
258 config NODES_SHIFT 286 config NODES_SHIFT
259 int "Maximum NUMA Nodes (as a power of 287 int "Maximum NUMA Nodes (as a power of 2)"
260 range 4 5 if SPARC64 288 range 4 5 if SPARC64
261 default "5" 289 default "5"
262 depends on NUMA !! 290 depends on NEED_MULTIPLE_NODES
263 help 291 help
264 Specify the maximum number of NUMA N 292 Specify the maximum number of NUMA Nodes available on the target
265 system. Increases memory reserved t 293 system. Increases memory reserved to accommodate various tables.
266 294
>> 295 # Some NUMA nodes have memory ranges that span
>> 296 # other nodes. Even though a pfn is valid and
>> 297 # between a node's start and end pfns, it may not
>> 298 # reside on that node. See memmap_init_zone()
>> 299 # for details.
>> 300 config NODES_SPAN_OTHER_NODES
>> 301 def_bool y
>> 302 depends on NEED_MULTIPLE_NODES
>> 303
267 config ARCH_SPARSEMEM_ENABLE 304 config ARCH_SPARSEMEM_ENABLE
268 def_bool y if SPARC64 305 def_bool y if SPARC64
269 select SPARSEMEM_VMEMMAP_ENABLE 306 select SPARSEMEM_VMEMMAP_ENABLE
270 307
271 config ARCH_SPARSEMEM_DEFAULT 308 config ARCH_SPARSEMEM_DEFAULT
272 def_bool y if SPARC64 309 def_bool y if SPARC64
273 310
274 config ARCH_FORCE_MAX_ORDER !! 311 config FORCE_MAX_ZONEORDER
275 int "Order of maximal physically conti !! 312 int "Maximum zone order"
276 default "12" !! 313 default "13"
277 help !! 314 help
278 The kernel page allocator limits the !! 315 The kernel memory allocator divides physically contiguous memory
279 contiguous allocations. The limit is !! 316 blocks into "zones", where each zone is a power of two number of
280 defines the maximal power of two of !! 317 pages. This option selects the largest power of two that the kernel
281 allocated as a single contiguous blo !! 318 keeps in the memory allocator. If you need to allocate very large
282 overriding the default setting when !! 319 blocks of physically contiguous memory, then you may need to
283 large blocks of physically contiguou !! 320 increase this value.
284 321
285 Don't change if unsure. !! 322 This config option is actually maximum order plus one. For example,
>> 323 a value of 13 means that the largest free memory block is 2^12 pages.
286 324
287 if SPARC64 || COMPILE_TEST 325 if SPARC64 || COMPILE_TEST
288 source "kernel/power/Kconfig" 326 source "kernel/power/Kconfig"
289 endif 327 endif
290 328
291 config SCHED_SMT 329 config SCHED_SMT
292 bool "SMT (Hyperthreading) scheduler s 330 bool "SMT (Hyperthreading) scheduler support"
293 depends on SPARC64 && SMP 331 depends on SPARC64 && SMP
294 default y 332 default y
295 help 333 help
296 SMT scheduler support improves the C 334 SMT scheduler support improves the CPU scheduler's decision making
297 when dealing with SPARC cpus at a co 335 when dealing with SPARC cpus at a cost of slightly increased overhead
298 in some places. If unsure say N here 336 in some places. If unsure say N here.
299 337
300 config SCHED_MC 338 config SCHED_MC
301 bool "Multi-core scheduler support" 339 bool "Multi-core scheduler support"
302 depends on SPARC64 && SMP 340 depends on SPARC64 && SMP
303 default y 341 default y
304 help 342 help
305 Multi-core scheduler support improve 343 Multi-core scheduler support improves the CPU scheduler's decision
306 making when dealing with multi-core 344 making when dealing with multi-core CPU chips at a cost of slightly
307 increased overhead in some places. I 345 increased overhead in some places. If unsure say N here.
308 346
309 config CMDLINE_BOOL 347 config CMDLINE_BOOL
310 bool "Default bootloader kernel argume 348 bool "Default bootloader kernel arguments"
311 depends on SPARC64 349 depends on SPARC64
312 350
313 config CMDLINE 351 config CMDLINE
314 string "Initial kernel command string" 352 string "Initial kernel command string"
315 depends on CMDLINE_BOOL 353 depends on CMDLINE_BOOL
316 default "console=ttyS0,9600 root=/dev/ 354 default "console=ttyS0,9600 root=/dev/sda1"
317 help 355 help
318 Say Y here if you want to be able to 356 Say Y here if you want to be able to pass default arguments to
319 the kernel. This will be overridden 357 the kernel. This will be overridden by the bootloader, if you
320 use one (such as SILO). This is most 358 use one (such as SILO). This is most useful if you want to boot
321 a kernel from TFTP, and want default 359 a kernel from TFTP, and want default options to be available
322 with having them passed on the comma 360 with having them passed on the command line.
323 361
324 NOTE: This option WILL override the 362 NOTE: This option WILL override the PROM bootargs setting!
325 363
326 config SUN_PM 364 config SUN_PM
327 bool 365 bool
328 default y if SPARC32 366 default y if SPARC32
329 help 367 help
330 Enable power management and CPU stan 368 Enable power management and CPU standby features on supported
331 SPARC platforms. 369 SPARC platforms.
332 370
333 config SPARC_LED 371 config SPARC_LED
334 tristate "Sun4m LED driver" 372 tristate "Sun4m LED driver"
335 depends on SPARC32 373 depends on SPARC32
336 help 374 help
337 This driver toggles the front-panel 375 This driver toggles the front-panel LED on sun4m systems
338 in a user-specifiable manner. Its s 376 in a user-specifiable manner. Its state can be probed
339 by reading /proc/led and its blinkin 377 by reading /proc/led and its blinking mode can be changed
340 via writes to /proc/led 378 via writes to /proc/led
341 379
342 config SERIAL_CONSOLE 380 config SERIAL_CONSOLE
343 bool 381 bool
344 depends on SPARC32 382 depends on SPARC32
345 default y 383 default y
346 help !! 384 ---help---
347 If you say Y here, it will be possib 385 If you say Y here, it will be possible to use a serial port as the
348 system console (the system console i 386 system console (the system console is the device which receives all
349 kernel messages and warnings and whi 387 kernel messages and warnings and which allows logins in single user
350 mode). This could be useful if some 388 mode). This could be useful if some terminal or printer is connected
351 to that serial port. 389 to that serial port.
352 390
353 Even if you say Y here, the currentl 391 Even if you say Y here, the currently visible virtual console
354 (/dev/tty0) will still be used as th 392 (/dev/tty0) will still be used as the system console by default, but
355 you can alter that using a kernel co 393 you can alter that using a kernel command line option such as
356 "console=ttyS1". (Try "man bootparam 394 "console=ttyS1". (Try "man bootparam" or see the documentation of
357 your boot loader (silo) about how to 395 your boot loader (silo) about how to pass options to the kernel at
358 boot time.) 396 boot time.)
359 397
360 If you don't have a graphics card in 398 If you don't have a graphics card installed and you say Y here, the
361 kernel will automatically use the fi 399 kernel will automatically use the first serial line, /dev/ttyS0, as
362 system console. 400 system console.
363 401
364 If unsure, say N. 402 If unsure, say N.
365 403
366 config SPARC_LEON 404 config SPARC_LEON
367 bool "Sparc Leon processor family" 405 bool "Sparc Leon processor family"
368 depends on SPARC32 406 depends on SPARC32
369 select USB_EHCI_BIG_ENDIAN_MMIO 407 select USB_EHCI_BIG_ENDIAN_MMIO
370 select USB_EHCI_BIG_ENDIAN_DESC 408 select USB_EHCI_BIG_ENDIAN_DESC
371 select USB_UHCI_BIG_ENDIAN_MMIO 409 select USB_UHCI_BIG_ENDIAN_MMIO
372 select USB_UHCI_BIG_ENDIAN_DESC 410 select USB_UHCI_BIG_ENDIAN_DESC
373 help !! 411 ---help---
374 If you say Y here if you are running 412 If you say Y here if you are running on a SPARC-LEON processor.
375 The LEON processor is a synthesizabl 413 The LEON processor is a synthesizable VHDL model of the
376 SPARC-v8 standard. LEON is part of 414 SPARC-v8 standard. LEON is part of the GRLIB collection of
377 IP cores that are distributed under 415 IP cores that are distributed under GPL. GRLIB can be downloaded
378 from www.gaisler.com. You can downlo 416 from www.gaisler.com. You can download a sparc-linux cross-compilation
379 toolchain at www.gaisler.com. 417 toolchain at www.gaisler.com.
380 418
381 if SPARC_LEON 419 if SPARC_LEON
382 menu "U-Boot options" 420 menu "U-Boot options"
383 421
384 config UBOOT_LOAD_ADDR 422 config UBOOT_LOAD_ADDR
385 hex "uImage Load Address" 423 hex "uImage Load Address"
386 default 0x40004000 424 default 0x40004000
387 help !! 425 ---help---
388 U-Boot kernel load address, the addre 426 U-Boot kernel load address, the address in physical address space
389 where u-boot will place the Linux ker 427 where u-boot will place the Linux kernel before booting it.
390 This address is normally the base add 428 This address is normally the base address of main memory + 0x4000.
391 429
392 config UBOOT_FLASH_ADDR 430 config UBOOT_FLASH_ADDR
393 hex "uImage.o Load Address" 431 hex "uImage.o Load Address"
394 default 0x00080000 432 default 0x00080000
395 help !! 433 ---help---
396 Optional setting only affecting the u 434 Optional setting only affecting the uImage.o ELF-image used to
397 download the uImage file to the targe 435 download the uImage file to the target using a ELF-loader other than
398 U-Boot. It may for example be used to 436 U-Boot. It may for example be used to download an uImage to FLASH with
399 the GRMON utility before even startin 437 the GRMON utility before even starting u-boot.
400 438
401 config UBOOT_ENTRY_ADDR 439 config UBOOT_ENTRY_ADDR
402 hex "uImage Entry Address" 440 hex "uImage Entry Address"
403 default 0xf0004000 441 default 0xf0004000
404 help !! 442 ---help---
405 Do not change this unless you know wh 443 Do not change this unless you know what you're doing. This is
406 hardcoded by the SPARC32 and LEON por 444 hardcoded by the SPARC32 and LEON port.
407 445
408 This is the virtual address u-boot ju 446 This is the virtual address u-boot jumps to when booting the Linux
409 Kernel. 447 Kernel.
410 448
411 endmenu 449 endmenu
412 endif 450 endif
413 451
414 endmenu 452 endmenu
415 453
416 menu "Bus options (PCI etc.)" 454 menu "Bus options (PCI etc.)"
417 config SBUS 455 config SBUS
418 bool 456 bool
419 default y 457 default y
420 458
421 config SBUSCHAR 459 config SBUSCHAR
422 bool 460 bool
423 default y 461 default y
424 462
425 config SUN_LDOMS 463 config SUN_LDOMS
426 bool "Sun Logical Domains support" 464 bool "Sun Logical Domains support"
427 depends on SPARC64 465 depends on SPARC64
428 help 466 help
429 Say Y here is you want to support vi 467 Say Y here is you want to support virtual devices via
430 Logical Domains. 468 Logical Domains.
431 469
432 config PCIC_PCI 470 config PCIC_PCI
433 bool 471 bool
434 depends on PCI && SPARC32 && !SPARC_LE 472 depends on PCI && SPARC32 && !SPARC_LEON
435 default y 473 default y
436 474
437 config LEON_PCI 475 config LEON_PCI
438 bool 476 bool
439 depends on PCI && SPARC_LEON 477 depends on PCI && SPARC_LEON
440 default y 478 default y
441 479
442 config SPARC_GRPCI1 480 config SPARC_GRPCI1
443 bool "GRPCI Host Bridge Support" 481 bool "GRPCI Host Bridge Support"
444 depends on LEON_PCI 482 depends on LEON_PCI
445 default y 483 default y
446 help 484 help
447 Say Y here to include the GRPCI Host 485 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
448 PCI host controller is typically fou 486 PCI host controller is typically found in GRLIB SPARC32/LEON
449 systems. The driver has one property 487 systems. The driver has one property (all_pci_errors) controlled
450 from the bootloader that makes the G 488 from the bootloader that makes the GRPCI to generate interrupts
451 on detected PCI Parity and System er 489 on detected PCI Parity and System errors.
452 490
453 config SPARC_GRPCI2 491 config SPARC_GRPCI2
454 bool "GRPCI2 Host Bridge Support" 492 bool "GRPCI2 Host Bridge Support"
455 depends on LEON_PCI 493 depends on LEON_PCI
456 default y 494 default y
457 help 495 help
458 Say Y here to include the GRPCI2 Hos 496 Say Y here to include the GRPCI2 Host Bridge Driver.
459 497
460 config SUN_OPENPROMFS 498 config SUN_OPENPROMFS
461 tristate "Openprom tree appears in /pr 499 tristate "Openprom tree appears in /proc/openprom"
462 help 500 help
463 If you say Y, the OpenPROM device tr 501 If you say Y, the OpenPROM device tree will be available as a
464 virtual file system, which you can m 502 virtual file system, which you can mount to /proc/openprom by "mount
465 -t openpromfs none /proc/openprom". 503 -t openpromfs none /proc/openprom".
466 504
467 To compile the /proc/openprom suppor 505 To compile the /proc/openprom support as a module, choose M here: the
468 module will be called openpromfs. 506 module will be called openpromfs.
469 507
470 Only choose N if you know in advance 508 Only choose N if you know in advance that you will not need to modify
471 OpenPROM settings on the running sys 509 OpenPROM settings on the running system.
472 510
473 # Makefile helpers 511 # Makefile helpers
474 config SPARC64_PCI 512 config SPARC64_PCI
475 bool 513 bool
476 default y 514 default y
477 depends on SPARC64 && PCI 515 depends on SPARC64 && PCI
478 516
479 config SPARC64_PCI_MSI 517 config SPARC64_PCI_MSI
480 bool 518 bool
481 default y 519 default y
482 depends on SPARC64_PCI && PCI_MSI 520 depends on SPARC64_PCI && PCI_MSI
483 521
484 endmenu 522 endmenu
485 523
486 config COMPAT 524 config COMPAT
487 bool 525 bool
488 depends on SPARC64 526 depends on SPARC64
489 default y 527 default y
>> 528 select COMPAT_BINFMT_ELF if BINFMT_ELF
490 select HAVE_UID16 529 select HAVE_UID16
491 select ARCH_WANT_OLD_COMPAT_IPC 530 select ARCH_WANT_OLD_COMPAT_IPC
492 select COMPAT_OLD_SIGACTION 531 select COMPAT_OLD_SIGACTION
>> 532
>> 533 config SYSVIPC_COMPAT
>> 534 bool
>> 535 depends on COMPAT && SYSVIPC
>> 536 default y
493 537
494 source "drivers/sbus/char/Kconfig" 538 source "drivers/sbus/char/Kconfig"
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