1
2config SUPERH
3 def_bool y
4 select ARCH_32BIT_OFF_T
5 select ARCH_ENABLE_MEMORY_HOTPLUG if SPARSEMEM && MMU
6 select ARCH_ENABLE_MEMORY_HOTREMOVE if SPARSEMEM && MMU
7 select ARCH_HAVE_CUSTOM_GPIO_H
8 select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A)
9 select ARCH_HAS_BINFMT_FLAT if !MMU
10 select ARCH_HAS_GIGANTIC_PAGE
11 select ARCH_HAS_GCOV_PROFILE_ALL
12 select ARCH_HAS_PTE_SPECIAL
13 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
14 select ARCH_HIBERNATION_POSSIBLE if MMU
15 select ARCH_MIGHT_HAVE_PC_PARPORT
16 select ARCH_WANT_IPC_PARSE_VERSION
17 select CPU_NO_EFFICIENT_FFS
18 select DMA_DECLARE_COHERENT
19 select GENERIC_ATOMIC64
20 select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST
21 select GENERIC_IDLE_POLL_SETUP
22 select GENERIC_IRQ_SHOW
23 select GENERIC_PCI_IOMAP if PCI
24 select GENERIC_SCHED_CLOCK
25 select GENERIC_STRNCPY_FROM_USER
26 select GENERIC_STRNLEN_USER
27 select GENERIC_SMP_IDLE_THREAD
28 select GUP_GET_PTE_LOW_HIGH if X2TLB
29 select HAVE_ARCH_AUDITSYSCALL
30 select HAVE_ARCH_KGDB
31 select HAVE_ARCH_SECCOMP_FILTER
32 select HAVE_ARCH_TRACEHOOK
33 select HAVE_DEBUG_BUGVERBOSE
34 select HAVE_DEBUG_KMEMLEAK
35 select HAVE_DYNAMIC_FTRACE
36 select HAVE_FAST_GUP if MMU
37 select HAVE_FUNCTION_GRAPH_TRACER
38 select HAVE_FUNCTION_TRACER
39 select HAVE_FUTEX_CMPXCHG if FUTEX
40 select HAVE_FTRACE_MCOUNT_RECORD
41 select HAVE_HW_BREAKPOINT
42 select HAVE_IOREMAP_PROT if MMU && !X2TLB
43 select HAVE_KERNEL_BZIP2
44 select HAVE_KERNEL_GZIP
45 select HAVE_KERNEL_LZMA
46 select HAVE_KERNEL_LZO
47 select HAVE_KERNEL_XZ
48 select HAVE_KPROBES
49 select HAVE_KRETPROBES
50 select HAVE_MIXED_BREAKPOINTS_REGS
51 select HAVE_MOD_ARCH_SPECIFIC if DWARF_UNWINDER
52 select HAVE_NMI
53 select HAVE_PATA_PLATFORM
54 select HAVE_PERF_EVENTS
55 select HAVE_REGS_AND_STACK_ACCESS_API
56 select HAVE_UID16
57 select HAVE_SOFTIRQ_ON_OWN_STACK if IRQSTACKS
58 select HAVE_STACKPROTECTOR
59 select HAVE_SYSCALL_TRACEPOINTS
60 select IRQ_FORCED_THREADING
61 select MAY_HAVE_SPARSE_IRQ
62 select MODULES_USE_ELF_RELA
63 select NEED_SG_DMA_LENGTH
64 select NO_DMA if !MMU && !DMA_COHERENT
65 select NO_GENERIC_PCI_IOPORT_MAP if PCI
66 select OLD_SIGACTION
67 select OLD_SIGSUSPEND
68 select PCI_DOMAINS if PCI
69 select PERF_EVENTS
70 select PERF_USE_VMALLOC
71 select RTC_LIB
72 select SET_FS
73 select SPARSE_IRQ
74 help
75 The SuperH is a RISC processor targeted for use in embedded systems
76 and consumer electronics; it was also used in the Sega Dreamcast
77 gaming console. The SuperH port has a home page at
78 <http://www.linux-sh.org/>.
79
80config GENERIC_BUG
81 def_bool y
82 depends on BUG
83
84config GENERIC_HWEIGHT
85 def_bool y
86
87config GENERIC_CALIBRATE_DELAY
88 bool
89
90config GENERIC_LOCKBREAK
91 def_bool y
92 depends on SMP && PREEMPTION
93
94config ARCH_SUSPEND_POSSIBLE
95 def_bool n
96
97config ARCH_HIBERNATION_POSSIBLE
98 def_bool n
99
100config SYS_SUPPORTS_APM_EMULATION
101 bool
102 select ARCH_SUSPEND_POSSIBLE
103
104config SYS_SUPPORTS_SMP
105 bool
106
107config SYS_SUPPORTS_NUMA
108 bool
109
110config STACKTRACE_SUPPORT
111 def_bool y
112
113config LOCKDEP_SUPPORT
114 def_bool y
115
116config ARCH_HAS_ILOG2_U32
117 def_bool n
118
119config ARCH_HAS_ILOG2_U64
120 def_bool n
121
122config NO_IOPORT_MAP
123 def_bool !PCI
124 depends on !SH_SH4202_MICRODEV && !SH_SHMIN && !SH_HP6XX && \
125 !SH_SOLUTION_ENGINE
126
127config IO_TRAPPED
128 bool
129
130config SWAP_IO_SPACE
131 bool
132
133config DMA_COHERENT
134 bool
135
136config DMA_NONCOHERENT
137 def_bool !NO_DMA && !DMA_COHERENT
138 select ARCH_HAS_DMA_PREP_COHERENT
139 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
140 select DMA_DIRECT_REMAP
141
142config PGTABLE_LEVELS
143 default 3 if X2TLB
144 default 2
145
146menu "System type"
147
148
149
150
151config CPU_SH2
152 bool
153 select SH_INTC
154
155config CPU_SH2A
156 bool
157 select CPU_SH2
158 select UNCACHED_MAPPING
159
160config CPU_J2
161 bool
162 select CPU_SH2
163 select OF
164 select OF_EARLY_FLATTREE
165
166config CPU_SH3
167 bool
168 select CPU_HAS_INTEVT
169 select CPU_HAS_SR_RB
170 select SH_INTC
171 select SYS_SUPPORTS_SH_TMU
172
173config CPU_SH4
174 bool
175 select ARCH_SUPPORTS_HUGETLBFS if MMU
176 select CPU_HAS_INTEVT
177 select CPU_HAS_SR_RB
178 select CPU_HAS_FPU if !CPU_SH4AL_DSP
179 select SH_INTC
180 select SYS_SUPPORTS_SH_TMU
181
182config CPU_SH4A
183 bool
184 select CPU_SH4
185
186config CPU_SH4AL_DSP
187 bool
188 select CPU_SH4A
189 select CPU_HAS_DSP
190
191config CPU_SHX2
192 bool
193
194config CPU_SHX3
195 bool
196 select DMA_COHERENT
197 select SYS_SUPPORTS_SMP
198 select SYS_SUPPORTS_NUMA
199
200config ARCH_SHMOBILE
201 bool
202 select ARCH_SUSPEND_POSSIBLE
203 select PM
204
205config CPU_HAS_PMU
206 depends on CPU_SH4 || CPU_SH4A
207 default y
208 bool
209
210choice
211 prompt "Processor sub-type selection"
212
213
214
215
216
217
218
219config CPU_SUBTYPE_SH7619
220 bool "Support SH7619 processor"
221 select CPU_SH2
222 select SYS_SUPPORTS_SH_CMT
223
224config CPU_SUBTYPE_J2
225 bool "Support J2 processor"
226 select CPU_J2
227 select SYS_SUPPORTS_SMP
228 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
229
230
231
232config CPU_SUBTYPE_SH7201
233 bool "Support SH7201 processor"
234 select CPU_SH2A
235 select CPU_HAS_FPU
236 select SYS_SUPPORTS_SH_MTU2
237
238config CPU_SUBTYPE_SH7203
239 bool "Support SH7203 processor"
240 select CPU_SH2A
241 select CPU_HAS_FPU
242 select SYS_SUPPORTS_SH_CMT
243 select SYS_SUPPORTS_SH_MTU2
244 select PINCTRL
245
246config CPU_SUBTYPE_SH7206
247 bool "Support SH7206 processor"
248 select CPU_SH2A
249 select SYS_SUPPORTS_SH_CMT
250 select SYS_SUPPORTS_SH_MTU2
251
252config CPU_SUBTYPE_SH7263
253 bool "Support SH7263 processor"
254 select CPU_SH2A
255 select CPU_HAS_FPU
256 select SYS_SUPPORTS_SH_CMT
257 select SYS_SUPPORTS_SH_MTU2
258
259config CPU_SUBTYPE_SH7264
260 bool "Support SH7264 processor"
261 select CPU_SH2A
262 select CPU_HAS_FPU
263 select SYS_SUPPORTS_SH_CMT
264 select SYS_SUPPORTS_SH_MTU2
265 select PINCTRL
266
267config CPU_SUBTYPE_SH7269
268 bool "Support SH7269 processor"
269 select CPU_SH2A
270 select CPU_HAS_FPU
271 select SYS_SUPPORTS_SH_CMT
272 select SYS_SUPPORTS_SH_MTU2
273 select PINCTRL
274
275config CPU_SUBTYPE_MXG
276 bool "Support MX-G processor"
277 select CPU_SH2A
278 select SYS_SUPPORTS_SH_MTU2
279 help
280 Select MX-G if running on an R8A03022BG part.
281
282
283
284config CPU_SUBTYPE_SH7705
285 bool "Support SH7705 processor"
286 select CPU_SH3
287
288config CPU_SUBTYPE_SH7706
289 bool "Support SH7706 processor"
290 select CPU_SH3
291 help
292 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
293
294config CPU_SUBTYPE_SH7707
295 bool "Support SH7707 processor"
296 select CPU_SH3
297 help
298 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
299
300config CPU_SUBTYPE_SH7708
301 bool "Support SH7708 processor"
302 select CPU_SH3
303 help
304 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
305 if you have a 100 Mhz SH-3 HD6417708R CPU.
306
307config CPU_SUBTYPE_SH7709
308 bool "Support SH7709 processor"
309 select CPU_SH3
310 help
311 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
312
313config CPU_SUBTYPE_SH7710
314 bool "Support SH7710 processor"
315 select CPU_SH3
316 select CPU_HAS_DSP
317 help
318 Select SH7710 if you have a SH3-DSP SH7710 CPU.
319
320config CPU_SUBTYPE_SH7712
321 bool "Support SH7712 processor"
322 select CPU_SH3
323 select CPU_HAS_DSP
324 help
325 Select SH7712 if you have a SH3-DSP SH7712 CPU.
326
327config CPU_SUBTYPE_SH7720
328 bool "Support SH7720 processor"
329 select CPU_SH3
330 select CPU_HAS_DSP
331 select SYS_SUPPORTS_SH_CMT
332 select USB_OHCI_SH if USB_OHCI_HCD
333 select PINCTRL
334 help
335 Select SH7720 if you have a SH3-DSP SH7720 CPU.
336
337config CPU_SUBTYPE_SH7721
338 bool "Support SH7721 processor"
339 select CPU_SH3
340 select CPU_HAS_DSP
341 select SYS_SUPPORTS_SH_CMT
342 select USB_OHCI_SH if USB_OHCI_HCD
343 help
344 Select SH7721 if you have a SH3-DSP SH7721 CPU.
345
346
347
348config CPU_SUBTYPE_SH7750
349 bool "Support SH7750 processor"
350 select CPU_SH4
351 help
352 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
353
354config CPU_SUBTYPE_SH7091
355 bool "Support SH7091 processor"
356 select CPU_SH4
357 help
358 Select SH7091 if you have an SH-4 based Sega device (such as
359 the Dreamcast, Naomi, and Naomi 2).
360
361config CPU_SUBTYPE_SH7750R
362 bool "Support SH7750R processor"
363 select CPU_SH4
364
365config CPU_SUBTYPE_SH7750S
366 bool "Support SH7750S processor"
367 select CPU_SH4
368
369config CPU_SUBTYPE_SH7751
370 bool "Support SH7751 processor"
371 select CPU_SH4
372 help
373 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
374 or if you have a HD6417751R CPU.
375
376config CPU_SUBTYPE_SH7751R
377 bool "Support SH7751R processor"
378 select CPU_SH4
379
380config CPU_SUBTYPE_SH7760
381 bool "Support SH7760 processor"
382 select CPU_SH4
383
384config CPU_SUBTYPE_SH4_202
385 bool "Support SH4-202 processor"
386 select CPU_SH4
387
388
389
390config CPU_SUBTYPE_SH7723
391 bool "Support SH7723 processor"
392 select CPU_SH4A
393 select CPU_SHX2
394 select ARCH_SHMOBILE
395 select ARCH_SPARSEMEM_ENABLE
396 select SYS_SUPPORTS_SH_CMT
397 select PINCTRL
398 help
399 Select SH7723 if you have an SH-MobileR2 CPU.
400
401config CPU_SUBTYPE_SH7724
402 bool "Support SH7724 processor"
403 select CPU_SH4A
404 select CPU_SHX2
405 select ARCH_SHMOBILE
406 select ARCH_SPARSEMEM_ENABLE
407 select SYS_SUPPORTS_SH_CMT
408 select PINCTRL
409 help
410 Select SH7724 if you have an SH-MobileR2R CPU.
411
412config CPU_SUBTYPE_SH7734
413 bool "Support SH7734 processor"
414 select CPU_SH4A
415 select CPU_SHX2
416 select PINCTRL
417 help
418 Select SH7734 if you have a SH4A SH7734 CPU.
419
420config CPU_SUBTYPE_SH7757
421 bool "Support SH7757 processor"
422 select CPU_SH4A
423 select CPU_SHX2
424 select PINCTRL
425 help
426 Select SH7757 if you have a SH4A SH7757 CPU.
427
428config CPU_SUBTYPE_SH7763
429 bool "Support SH7763 processor"
430 select CPU_SH4A
431 select USB_OHCI_SH if USB_OHCI_HCD
432 help
433 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
434
435config CPU_SUBTYPE_SH7770
436 bool "Support SH7770 processor"
437 select CPU_SH4A
438
439config CPU_SUBTYPE_SH7780
440 bool "Support SH7780 processor"
441 select CPU_SH4A
442
443config CPU_SUBTYPE_SH7785
444 bool "Support SH7785 processor"
445 select CPU_SH4A
446 select CPU_SHX2
447 select ARCH_SPARSEMEM_ENABLE
448 select SYS_SUPPORTS_NUMA
449 select PINCTRL
450
451config CPU_SUBTYPE_SH7786
452 bool "Support SH7786 processor"
453 select CPU_SH4A
454 select CPU_SHX3
455 select CPU_HAS_PTEAEX
456 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
457 select USB_OHCI_SH if USB_OHCI_HCD
458 select USB_EHCI_SH if USB_EHCI_HCD
459 select PINCTRL
460
461config CPU_SUBTYPE_SHX3
462 bool "Support SH-X3 processor"
463 select CPU_SH4A
464 select CPU_SHX3
465 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
466 select GPIOLIB
467 select PINCTRL
468
469
470
471config CPU_SUBTYPE_SH7343
472 bool "Support SH7343 processor"
473 select CPU_SH4AL_DSP
474 select ARCH_SHMOBILE
475 select SYS_SUPPORTS_SH_CMT
476
477config CPU_SUBTYPE_SH7722
478 bool "Support SH7722 processor"
479 select CPU_SH4AL_DSP
480 select CPU_SHX2
481 select ARCH_SHMOBILE
482 select ARCH_SPARSEMEM_ENABLE
483 select SYS_SUPPORTS_NUMA
484 select SYS_SUPPORTS_SH_CMT
485 select PINCTRL
486
487config CPU_SUBTYPE_SH7366
488 bool "Support SH7366 processor"
489 select CPU_SH4AL_DSP
490 select CPU_SHX2
491 select ARCH_SHMOBILE
492 select ARCH_SPARSEMEM_ENABLE
493 select SYS_SUPPORTS_NUMA
494 select SYS_SUPPORTS_SH_CMT
495
496endchoice
497
498source "arch/sh/mm/Kconfig"
499
500source "arch/sh/Kconfig.cpu"
501
502source "arch/sh/boards/Kconfig"
503
504menu "Timer and clock configuration"
505
506config SH_PCLK_FREQ
507 int "Peripheral clock frequency (in Hz)"
508 depends on SH_CLK_CPG_LEGACY
509 default "31250000" if CPU_SUBTYPE_SH7619
510 default "33333333" if CPU_SUBTYPE_SH7770 || \
511 CPU_SUBTYPE_SH7760 || \
512 CPU_SUBTYPE_SH7705 || \
513 CPU_SUBTYPE_SH7203 || \
514 CPU_SUBTYPE_SH7206 || \
515 CPU_SUBTYPE_SH7263 || \
516 CPU_SUBTYPE_MXG
517 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
518 default "66000000" if CPU_SUBTYPE_SH4_202
519 default "50000000"
520 help
521 This option is used to specify the peripheral clock frequency.
522 This is necessary for determining the reference clock value on
523 platforms lacking an RTC.
524
525config SH_CLK_CPG
526 def_bool y
527
528config SH_CLK_CPG_LEGACY
529 depends on SH_CLK_CPG
530 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
531 !CPU_SHX3 && !CPU_SUBTYPE_SH7757 && \
532 !CPU_SUBTYPE_SH7734 && !CPU_SUBTYPE_SH7264 && \
533 !CPU_SUBTYPE_SH7269
534
535endmenu
536
537menu "CPU Frequency scaling"
538source "drivers/cpufreq/Kconfig"
539endmenu
540
541source "arch/sh/drivers/Kconfig"
542
543endmenu
544
545menu "Kernel features"
546
547source "kernel/Kconfig.hz"
548
549config KEXEC
550 bool "kexec system call (EXPERIMENTAL)"
551 depends on MMU
552 select KEXEC_CORE
553 help
554 kexec is a system call that implements the ability to shutdown your
555 current kernel, and to start another kernel. It is like a reboot
556 but it is independent of the system firmware. And like a reboot
557 you can start any kernel with it, not just Linux.
558
559 The name comes from the similarity to the exec system call.
560
561 It is an ongoing process to be certain the hardware in a machine
562 is properly shutdown, so do not be surprised if this code does not
563 initially work for you. As of this writing the exact hardware
564 interface is strongly in flux, so no good recommendation can be
565 made.
566
567config CRASH_DUMP
568 bool "kernel crash dumps (EXPERIMENTAL)"
569 depends on BROKEN_ON_SMP
570 help
571 Generate crash dump after being started by kexec.
572 This should be normally only set in special crash dump kernels
573 which are loaded in the main kernel with kexec-tools into
574 a specially reserved region and then later executed after
575 a crash by kdump/kexec. The crash dump kernel must be compiled
576 to a memory address not used by the main kernel using
577 PHYSICAL_START.
578
579 For more details see Documentation/admin-guide/kdump/kdump.rst
580
581config KEXEC_JUMP
582 bool "kexec jump (EXPERIMENTAL)"
583 depends on KEXEC && HIBERNATION
584 help
585 Jump between original kernel and kexeced kernel and invoke
586 code via KEXEC
587
588config PHYSICAL_START
589 hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP)
590 default MEMORY_START
591 help
592 This gives the physical address where the kernel is loaded
593 and is ordinarily the same as MEMORY_START.
594
595 Different values are primarily used in the case of kexec on panic
596 where the fail safe kernel needs to run at a different address
597 than the panic-ed kernel.
598
599config SMP
600 bool "Symmetric multi-processing support"
601 depends on SYS_SUPPORTS_SMP
602 help
603 This enables support for systems with more than one CPU. If you have
604 a system with only one CPU, say N. If you have a system with more
605 than one CPU, say Y.
606
607 If you say N here, the kernel will run on uni- and multiprocessor
608 machines, but will use only one CPU of a multiprocessor machine. If
609 you say Y here, the kernel will run on many, but not all,
610 uniprocessor machines. On a uniprocessor machine, the kernel
611 will run faster if you say N here.
612
613 People using multiprocessor machines who say Y here should also say
614 Y to "Enhanced Real Time Clock Support", below.
615
616 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
617 available at <https://www.tldp.org/docs.html#howto>.
618
619 If you don't know what to do here, say N.
620
621config NR_CPUS
622 int "Maximum number of CPUs (2-32)"
623 range 2 32
624 depends on SMP
625 default "4" if CPU_SUBTYPE_SHX3
626 default "2"
627 help
628 This allows you to specify the maximum number of CPUs which this
629 kernel will support. The maximum supported value is 32 and the
630 minimum value which makes sense is 2.
631
632 This is purely to save memory - each supported CPU adds
633 approximately eight kilobytes to the kernel image.
634
635config HOTPLUG_CPU
636 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
637 depends on SMP
638 help
639 Say Y here to experiment with turning CPUs off and on. CPUs
640 can be controlled through /sys/devices/system/cpu.
641
642config GUSA
643 def_bool y
644 depends on !SMP
645 help
646 This enables support for gUSA (general UserSpace Atomicity).
647 This is the default implementation for both UP and non-ll/sc
648 CPUs, and is used by the libc, amongst others.
649
650 For additional information, design information can be found
651 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
652
653 This should only be disabled for special cases where alternate
654 atomicity implementations exist.
655
656config GUSA_RB
657 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
658 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
659 help
660 Enabling this option will allow the kernel to implement some
661 atomic operations using a software implementation of load-locked/
662 store-conditional (LLSC). On machines which do not have hardware
663 LLSC, this should be more efficient than the other alternative of
664 disabling interrupts around the atomic sequence.
665
666config HW_PERF_EVENTS
667 bool "Enable hardware performance counter support for perf events"
668 depends on PERF_EVENTS && CPU_HAS_PMU
669 default y
670 help
671 Enable hardware performance counter support for perf events. If
672 disabled, perf events will use software events only.
673
674source "drivers/sh/Kconfig"
675
676endmenu
677
678menu "Boot options"
679
680config USE_BUILTIN_DTB
681 bool "Use builtin DTB"
682 default n
683 depends on SH_DEVICE_TREE
684 help
685 Link a device tree blob for particular hardware into the kernel,
686 suppressing use of the DTB pointer provided by the bootloader.
687 This option should only be used with legacy bootloaders that are
688 not capable of providing a DTB to the kernel, or for experimental
689 hardware without stable device tree bindings.
690
691config BUILTIN_DTB_SOURCE
692 string "Source file for builtin DTB"
693 default ""
694 depends on USE_BUILTIN_DTB
695 help
696 Base name (without suffix, relative to arch/sh/boot/dts) for the
697 a DTS file that will be used to produce the DTB linked into the
698 kernel.
699
700config ZERO_PAGE_OFFSET
701 hex
702 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
703 SH_7751_SOLUTION_ENGINE
704 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
705 default "0x00002000" if PAGE_SIZE_8KB
706 default "0x00001000"
707 help
708 This sets the default offset of zero page.
709
710config BOOT_LINK_OFFSET
711 hex
712 default "0x00210000" if SH_SHMIN
713 default "0x00810000" if SH_7780_SOLUTION_ENGINE
714 default "0x009e0000" if SH_TITAN
715 default "0x01800000" if SH_SDK7780
716 default "0x02000000" if SH_EDOSK7760
717 default "0x00800000"
718 help
719 This option allows you to set the link address offset of the zImage.
720 This can be useful if you are on a board which has a small amount of
721 memory.
722
723config ENTRY_OFFSET
724 hex
725 default "0x00001000" if PAGE_SIZE_4KB
726 default "0x00002000" if PAGE_SIZE_8KB
727 default "0x00004000" if PAGE_SIZE_16KB
728 default "0x00010000" if PAGE_SIZE_64KB
729 default "0x00000000"
730
731config ROMIMAGE_MMCIF
732 bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
733 depends on CPU_SUBTYPE_SH7724
734 help
735 Say Y here to include experimental MMCIF loading code in
736 romImage. With this enabled it is possible to write the romImage
737 kernel image to an MMC card and boot the kernel straight from
738 the reset vector. At reset the processor Mask ROM will load the
739 first part of the romImage which in turn loads the rest the kernel
740 image to RAM using the MMCIF hardware block.
741
742choice
743 prompt "Kernel command line"
744 optional
745 default CMDLINE_OVERWRITE
746 help
747 Setting this option allows the kernel command line arguments
748 to be set.
749
750config CMDLINE_OVERWRITE
751 bool "Overwrite bootloader kernel arguments"
752 help
753 Given string will overwrite any arguments passed in by
754 a bootloader.
755
756config CMDLINE_EXTEND
757 bool "Extend bootloader kernel arguments"
758 help
759 Given string will be concatenated with arguments passed in
760 by a bootloader.
761
762endchoice
763
764config CMDLINE
765 string "Kernel command line arguments string"
766 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
767 default "console=ttySC1,115200"
768
769endmenu
770
771menu "Bus options"
772
773config SUPERHYWAY
774 tristate "SuperHyway Bus support"
775 depends on CPU_SUBTYPE_SH4_202
776
777config MAPLE
778 bool "Maple Bus support"
779 depends on SH_DREAMCAST
780 help
781 The Maple Bus is SEGA's serial communication bus for peripherals
782 on the Dreamcast. Without this bus support you won't be able to
783 get your Dreamcast keyboard etc to work, so most users
784 probably want to say 'Y' here, unless you are only using the
785 Dreamcast with a serial line terminal or a remote network
786 connection.
787
788endmenu
789
790menu "Power management options (EXPERIMENTAL)"
791
792source "kernel/power/Kconfig"
793
794source "drivers/cpuidle/Kconfig"
795
796endmenu
797
