1# SPDX-License-Identifier: GPL-2.0
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_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A)
8	select ARCH_HAS_BINFMT_FLAT if !MMU
9	select ARCH_HAS_CPU_FINALIZE_INIT
10	select ARCH_HAS_CURRENT_STACK_POINTER
11	select ARCH_HAS_GIGANTIC_PAGE
12	select ARCH_HAS_GCOV_PROFILE_ALL
13	select ARCH_HAS_PTE_SPECIAL
14	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
15	select ARCH_HIBERNATION_POSSIBLE if MMU
16	select ARCH_MIGHT_HAVE_PC_PARPORT
17	select ARCH_WANT_IPC_PARSE_VERSION
18	select CPU_NO_EFFICIENT_FFS
19	select DMA_DECLARE_COHERENT
20	select GENERIC_ATOMIC64
21	select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST
22	select GENERIC_IDLE_POLL_SETUP
23	select GENERIC_IRQ_SHOW
24	select GENERIC_LIB_ASHLDI3
25	select GENERIC_LIB_ASHRDI3
26	select GENERIC_LIB_LSHRDI3
27	select GENERIC_PCI_IOMAP if PCI
28	select GENERIC_SCHED_CLOCK
29	select GENERIC_SMP_IDLE_THREAD
30	select GUP_GET_PXX_LOW_HIGH if X2TLB
31	select HAS_IOPORT if HAS_IOPORT_MAP
32	select GENERIC_IOREMAP if MMU
33	select HAVE_ARCH_AUDITSYSCALL
34	select HAVE_ARCH_KGDB
35	select HAVE_ARCH_SECCOMP_FILTER
36	select HAVE_ARCH_TRACEHOOK
37	select HAVE_DEBUG_BUGVERBOSE
38	select HAVE_DEBUG_KMEMLEAK
39	select HAVE_DYNAMIC_FTRACE
40	select HAVE_FAST_GUP if MMU
41	select HAVE_FUNCTION_GRAPH_TRACER
42	select HAVE_FUNCTION_TRACER
43	select HAVE_FTRACE_MCOUNT_RECORD
44	select HAVE_HW_BREAKPOINT
45	select HAVE_IOREMAP_PROT if MMU && !X2TLB
46	select HAVE_KERNEL_BZIP2
47	select HAVE_KERNEL_GZIP
48	select HAVE_KERNEL_LZMA
49	select HAVE_KERNEL_LZO
50	select HAVE_KERNEL_XZ
51	select HAVE_KPROBES
52	select HAVE_KRETPROBES
53	select HAVE_MIXED_BREAKPOINTS_REGS
54	select HAVE_MOD_ARCH_SPECIFIC if DWARF_UNWINDER
55	select HAVE_NMI
56	select HAVE_PATA_PLATFORM
57	select HAVE_PERF_EVENTS
58	select HAVE_REGS_AND_STACK_ACCESS_API
59	select HAVE_UID16
60	select HAVE_SOFTIRQ_ON_OWN_STACK if IRQSTACKS
61	select HAVE_STACKPROTECTOR
62	select HAVE_SYSCALL_TRACEPOINTS
63	select IRQ_FORCED_THREADING
64	select LOCK_MM_AND_FIND_VMA
65	select MODULES_USE_ELF_RELA
66	select NEED_SG_DMA_LENGTH
67	select NO_DMA if !MMU && !DMA_COHERENT
68	select NO_GENERIC_PCI_IOPORT_MAP if PCI
69	select OLD_SIGACTION
70	select OLD_SIGSUSPEND
71	select PCI_DOMAINS if PCI
72	select PERF_EVENTS
73	select PERF_USE_VMALLOC
74	select RTC_LIB
75	select SPARSE_IRQ
76	select TRACE_IRQFLAGS_SUPPORT
77	help
78	  The SuperH is a RISC processor targeted for use in embedded systems
79	  and consumer electronics; it was also used in the Sega Dreamcast
80	  gaming console.  The SuperH port has a home page at
81	  <http://www.linux-sh.org/>.
82
83config GENERIC_BUG
84	def_bool y
85	depends on BUG
86
87config GENERIC_HWEIGHT
88	def_bool y
89
90config GENERIC_CALIBRATE_DELAY
91	bool
92
93config GENERIC_LOCKBREAK
94	def_bool y
95	depends on SMP && PREEMPTION
96
97config ARCH_SUSPEND_POSSIBLE
98	def_bool n
99
100config ARCH_HIBERNATION_POSSIBLE
101	def_bool n
102
103config SYS_SUPPORTS_APM_EMULATION
104	bool
105	select ARCH_SUSPEND_POSSIBLE
106
107config SYS_SUPPORTS_SMP
108	bool
109
110config SYS_SUPPORTS_NUMA
111	bool
112
113config STACKTRACE_SUPPORT
114	def_bool y
115
116config LOCKDEP_SUPPORT
117	def_bool y
118
119config ARCH_HAS_ILOG2_U32
120	def_bool n
121
122config ARCH_HAS_ILOG2_U64
123	def_bool n
124
125config NO_IOPORT_MAP
126	def_bool !PCI
127	depends on !SH_SH4202_MICRODEV && !SH_SHMIN && !SH_HP6XX && \
128		   !SH_SOLUTION_ENGINE
129
130config IO_TRAPPED
131	bool
132
133config SWAP_IO_SPACE
134	bool
135
136config DMA_COHERENT
137	bool
138
139config DMA_NONCOHERENT
140	def_bool !NO_DMA && !DMA_COHERENT
141	select ARCH_HAS_DMA_PREP_COHERENT
142	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
143	select DMA_DIRECT_REMAP
144
145config PGTABLE_LEVELS
146	default 3 if X2TLB
147	default 2
148
149menu "System type"
150
151#
152# Processor families
153#
154config CPU_SH2
155	bool
156	select SH_INTC
157
158config CPU_SH2A
159	bool
160	select CPU_SH2
161	select UNCACHED_MAPPING
162
163config CPU_J2
164	bool
165	select CPU_SH2
166	select OF
167	select OF_EARLY_FLATTREE
168
169config CPU_SH3
170	bool
171	select CPU_HAS_INTEVT
172	select CPU_HAS_SR_RB
173	select SH_INTC
174	select SYS_SUPPORTS_SH_TMU
175
176config CPU_SH4
177	bool
178	select ARCH_SUPPORTS_HUGETLBFS if MMU
179	select CPU_HAS_INTEVT
180	select CPU_HAS_SR_RB
181	select CPU_HAS_FPU if !CPU_SH4AL_DSP
182	select SH_INTC
183	select SYS_SUPPORTS_SH_TMU
184
185config CPU_SH4A
186	bool
187	select CPU_SH4
188
189config CPU_SH4AL_DSP
190	bool
191	select CPU_SH4A
192	select CPU_HAS_DSP
193
194config CPU_SHX2
195	bool
196
197config CPU_SHX3
198	bool
199	select DMA_COHERENT
200	select SYS_SUPPORTS_SMP
201	select SYS_SUPPORTS_NUMA
202
203config ARCH_SHMOBILE
204	bool
205	select ARCH_SUSPEND_POSSIBLE
206	select PM
207
208config CPU_HAS_PMU
209       depends on CPU_SH4 || CPU_SH4A
210       default y
211       bool
212
213choice
214	prompt "Processor sub-type selection"
215
216#
217# Processor subtypes
218#
219
220# SH-2 Processor Support
221
222config CPU_SUBTYPE_SH7619
223	bool "Support SH7619 processor"
224	select CPU_SH2
225	select SYS_SUPPORTS_SH_CMT
226
227config CPU_SUBTYPE_J2
228	bool "Support J2 processor"
229	select CPU_J2
230	select SYS_SUPPORTS_SMP
231	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
232
233# SH-2A Processor Support
234
235config CPU_SUBTYPE_SH7201
236	bool "Support SH7201 processor"
237	select CPU_SH2A
238	select CPU_HAS_FPU
239	select SYS_SUPPORTS_SH_MTU2
240
241config CPU_SUBTYPE_SH7203
242	bool "Support SH7203 processor"
243	select CPU_SH2A
244	select CPU_HAS_FPU
245	select SYS_SUPPORTS_SH_CMT
246	select SYS_SUPPORTS_SH_MTU2
247	select PINCTRL
248
249config CPU_SUBTYPE_SH7206
250	bool "Support SH7206 processor"
251	select CPU_SH2A
252	select SYS_SUPPORTS_SH_CMT
253	select SYS_SUPPORTS_SH_MTU2
254
255config CPU_SUBTYPE_SH7263
256	bool "Support SH7263 processor"
257	select CPU_SH2A
258	select CPU_HAS_FPU
259	select SYS_SUPPORTS_SH_CMT
260	select SYS_SUPPORTS_SH_MTU2
261
262config CPU_SUBTYPE_SH7264
263	bool "Support SH7264 processor"
264	select CPU_SH2A
265	select CPU_HAS_FPU
266	select SYS_SUPPORTS_SH_CMT
267	select SYS_SUPPORTS_SH_MTU2
268	select PINCTRL
269
270config CPU_SUBTYPE_SH7269
271	bool "Support SH7269 processor"
272	select CPU_SH2A
273	select CPU_HAS_FPU
274	select SYS_SUPPORTS_SH_CMT
275	select SYS_SUPPORTS_SH_MTU2
276	select PINCTRL
277
278config CPU_SUBTYPE_MXG
279	bool "Support MX-G processor"
280	select CPU_SH2A
281	select SYS_SUPPORTS_SH_MTU2
282	help
283	  Select MX-G if running on an R8A03022BG part.
284
285# SH-3 Processor Support
286
287config CPU_SUBTYPE_SH7705
288	bool "Support SH7705 processor"
289	select CPU_SH3
290
291config CPU_SUBTYPE_SH7706
292	bool "Support SH7706 processor"
293	select CPU_SH3
294	help
295	  Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
296
297config CPU_SUBTYPE_SH7707
298	bool "Support SH7707 processor"
299	select CPU_SH3
300	help
301	  Select SH7707 if you have a  60 Mhz SH-3 HD6417707 CPU.
302
303config CPU_SUBTYPE_SH7708
304	bool "Support SH7708 processor"
305	select CPU_SH3
306	help
307	  Select SH7708 if you have a  60 Mhz SH-3 HD6417708S or
308	  if you have a 100 Mhz SH-3 HD6417708R CPU.
309
310config CPU_SUBTYPE_SH7709
311	bool "Support SH7709 processor"
312	select CPU_SH3
313	help
314	  Select SH7709 if you have a  80 Mhz SH-3 HD6417709 CPU.
315
316config CPU_SUBTYPE_SH7710
317	bool "Support SH7710 processor"
318	select CPU_SH3
319	select CPU_HAS_DSP
320	help
321	  Select SH7710 if you have a SH3-DSP SH7710 CPU.
322
323config CPU_SUBTYPE_SH7712
324	bool "Support SH7712 processor"
325	select CPU_SH3
326	select CPU_HAS_DSP
327	help
328	  Select SH7712 if you have a SH3-DSP SH7712 CPU.
329
330config CPU_SUBTYPE_SH7720
331	bool "Support SH7720 processor"
332	select CPU_SH3
333	select CPU_HAS_DSP
334	select SYS_SUPPORTS_SH_CMT
335	select USB_OHCI_SH if USB_OHCI_HCD
336	select PINCTRL
337	help
338	  Select SH7720 if you have a SH3-DSP SH7720 CPU.
339
340config CPU_SUBTYPE_SH7721
341	bool "Support SH7721 processor"
342	select CPU_SH3
343	select CPU_HAS_DSP
344	select SYS_SUPPORTS_SH_CMT
345	select USB_OHCI_SH if USB_OHCI_HCD
346	help
347	  Select SH7721 if you have a SH3-DSP SH7721 CPU.
348
349# SH-4 Processor Support
350
351config CPU_SUBTYPE_SH7750
352	bool "Support SH7750 processor"
353	select CPU_SH4
354	help
355	  Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
356
357config CPU_SUBTYPE_SH7091
358	bool "Support SH7091 processor"
359	select CPU_SH4
360	help
361	  Select SH7091 if you have an SH-4 based Sega device (such as
362	  the Dreamcast, Naomi, and Naomi 2).
363
364config CPU_SUBTYPE_SH7750R
365	bool "Support SH7750R processor"
366	select CPU_SH4
367
368config CPU_SUBTYPE_SH7750S
369	bool "Support SH7750S processor"
370	select CPU_SH4
371
372config CPU_SUBTYPE_SH7751
373	bool "Support SH7751 processor"
374	select CPU_SH4
375	help
376	  Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
377	  or if you have a HD6417751R CPU.
378
379config CPU_SUBTYPE_SH7751R
380	bool "Support SH7751R processor"
381	select CPU_SH4
382
383config CPU_SUBTYPE_SH7760
384	bool "Support SH7760 processor"
385	select CPU_SH4
386
387config CPU_SUBTYPE_SH4_202
388	bool "Support SH4-202 processor"
389	select CPU_SH4
390
391# SH-4A Processor Support
392
393config CPU_SUBTYPE_SH7723
394	bool "Support SH7723 processor"
395	select CPU_SH4A
396	select CPU_SHX2
397	select ARCH_SHMOBILE
398	select ARCH_SPARSEMEM_ENABLE
399	select SYS_SUPPORTS_SH_CMT
400	select PINCTRL
401	help
402	  Select SH7723 if you have an SH-MobileR2 CPU.
403
404config CPU_SUBTYPE_SH7724
405	bool "Support SH7724 processor"
406	select CPU_SH4A
407	select CPU_SHX2
408	select ARCH_SHMOBILE
409	select ARCH_SPARSEMEM_ENABLE
410	select SYS_SUPPORTS_SH_CMT
411	select PINCTRL
412	help
413	  Select SH7724 if you have an SH-MobileR2R CPU.
414
415config CPU_SUBTYPE_SH7734
416	bool "Support SH7734 processor"
417	select CPU_SH4A
418	select CPU_SHX2
419	select PINCTRL
420	help
421	  Select SH7734 if you have a SH4A SH7734 CPU.
422
423config CPU_SUBTYPE_SH7757
424	bool "Support SH7757 processor"
425	select CPU_SH4A
426	select CPU_SHX2
427	select PINCTRL
428	help
429	  Select SH7757 if you have a SH4A SH7757 CPU.
430
431config CPU_SUBTYPE_SH7763
432	bool "Support SH7763 processor"
433	select CPU_SH4A
434	select USB_OHCI_SH if USB_OHCI_HCD
435	help
436	  Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
437
438config CPU_SUBTYPE_SH7770
439	bool "Support SH7770 processor"
440	select CPU_SH4A
441
442config CPU_SUBTYPE_SH7780
443	bool "Support SH7780 processor"
444	select CPU_SH4A
445
446config CPU_SUBTYPE_SH7785
447	bool "Support SH7785 processor"
448	select CPU_SH4A
449	select CPU_SHX2
450	select ARCH_SPARSEMEM_ENABLE
451	select SYS_SUPPORTS_NUMA
452	select PINCTRL
453
454config CPU_SUBTYPE_SH7786
455	bool "Support SH7786 processor"
456	select CPU_SH4A
457	select CPU_SHX3
458	select CPU_HAS_PTEAEX
459	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
460	select USB_OHCI_SH if USB_OHCI_HCD
461	select USB_EHCI_SH if USB_EHCI_HCD
462	select PINCTRL
463
464config CPU_SUBTYPE_SHX3
465	bool "Support SH-X3 processor"
466	select CPU_SH4A
467	select CPU_SHX3
468	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
469	select GPIOLIB
470	select PINCTRL
471
472# SH4AL-DSP Processor Support
473
474config CPU_SUBTYPE_SH7343
475	bool "Support SH7343 processor"
476	select CPU_SH4AL_DSP
477	select ARCH_SHMOBILE
478	select SYS_SUPPORTS_SH_CMT
479
480config CPU_SUBTYPE_SH7722
481	bool "Support SH7722 processor"
482	select CPU_SH4AL_DSP
483	select CPU_SHX2
484	select ARCH_SHMOBILE
485	select ARCH_SPARSEMEM_ENABLE
486	select SYS_SUPPORTS_NUMA
487	select SYS_SUPPORTS_SH_CMT
488	select PINCTRL
489
490config CPU_SUBTYPE_SH7366
491	bool "Support SH7366 processor"
492	select CPU_SH4AL_DSP
493	select CPU_SHX2
494	select ARCH_SHMOBILE
495	select ARCH_SPARSEMEM_ENABLE
496	select SYS_SUPPORTS_NUMA
497	select SYS_SUPPORTS_SH_CMT
498
499endchoice
500
501source "arch/sh/mm/Kconfig"
502
503source "arch/sh/Kconfig.cpu"
504
505source "arch/sh/boards/Kconfig"
506
507menu "Timer and clock configuration"
508
509config SH_PCLK_FREQ
510	int "Peripheral clock frequency (in Hz)"
511	depends on SH_CLK_CPG_LEGACY
512	default "31250000" if CPU_SUBTYPE_SH7619
513	default "33333333" if CPU_SUBTYPE_SH7770 || \
514			      CPU_SUBTYPE_SH7760 || \
515			      CPU_SUBTYPE_SH7705 || \
516			      CPU_SUBTYPE_SH7203 || \
517			      CPU_SUBTYPE_SH7206 || \
518			      CPU_SUBTYPE_SH7263 || \
519			      CPU_SUBTYPE_MXG
520	default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
521	default "66000000" if CPU_SUBTYPE_SH4_202
522	default "50000000"
523	help
524	  This option is used to specify the peripheral clock frequency.
525	  This is necessary for determining the reference clock value on
526	  platforms lacking an RTC.
527
528config SH_CLK_CPG
529	def_bool y
530
531config SH_CLK_CPG_LEGACY
532	depends on SH_CLK_CPG
533	def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
534		      !CPU_SHX3 && !CPU_SUBTYPE_SH7757 && \
535		      !CPU_SUBTYPE_SH7734 && !CPU_SUBTYPE_SH7264 && \
536		      !CPU_SUBTYPE_SH7269
537
538endmenu
539
540menu "CPU Frequency scaling"
541source "drivers/cpufreq/Kconfig"
542endmenu
543
544source "arch/sh/drivers/Kconfig"
545
546endmenu
547
548menu "Kernel features"
549
550source "kernel/Kconfig.hz"
551
552config ARCH_SUPPORTS_KEXEC
553	def_bool MMU
554
555config ARCH_SUPPORTS_CRASH_DUMP
556	def_bool BROKEN_ON_SMP
557
558config ARCH_SUPPORTS_KEXEC_JUMP
559	def_bool y
560
561config PHYSICAL_START
562	hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP)
563	default MEMORY_START
564	help
565	  This gives the physical address where the kernel is loaded
566	  and is ordinarily the same as MEMORY_START.
567
568	  Different values are primarily used in the case of kexec on panic
569	  where the fail safe kernel needs to run at a different address
570	  than the panic-ed kernel.
571
572config SMP
573	bool "Symmetric multi-processing support"
574	depends on SYS_SUPPORTS_SMP
575	help
576	  This enables support for systems with more than one CPU. If you have
577	  a system with only one CPU, say N. If you have a system with more
578	  than one CPU, say Y.
579
580	  If you say N here, the kernel will run on uni- and multiprocessor
581	  machines, but will use only one CPU of a multiprocessor machine. If
582	  you say Y here, the kernel will run on many, but not all,
583	  uniprocessor machines. On a uniprocessor machine, the kernel
584	  will run faster if you say N here.
585
586	  People using multiprocessor machines who say Y here should also say
587	  Y to "Enhanced Real Time Clock Support", below.
588
589	  See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
590	  available at <https://www.tldp.org/docs.html#howto>.
591
592	  If you don't know what to do here, say N.
593
594config NR_CPUS
595	int "Maximum number of CPUs (2-32)"
596	range 2 32
597	depends on SMP
598	default "4" if CPU_SUBTYPE_SHX3
599	default "2"
600	help
601	  This allows you to specify the maximum number of CPUs which this
602	  kernel will support.  The maximum supported value is 32 and the
603	  minimum value which makes sense is 2.
604
605	  This is purely to save memory - each supported CPU adds
606	  approximately eight kilobytes to the kernel image.
607
608config HOTPLUG_CPU
609	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
610	depends on SMP
611	help
612	  Say Y here to experiment with turning CPUs off and on.  CPUs
613	  can be controlled through /sys/devices/system/cpu.
614
615config GUSA
616	def_bool y
617	depends on !SMP
618	help
619	  This enables support for gUSA (general UserSpace Atomicity).
620	  This is the default implementation for both UP and non-ll/sc
621	  CPUs, and is used by the libc, amongst others.
622
623	  For additional information, design information can be found
624	  in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
625
626	  This should only be disabled for special cases where alternate
627	  atomicity implementations exist.
628
629config GUSA_RB
630	bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
631	depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
632	help
633	  Enabling this option will allow the kernel to implement some
634	  atomic operations using a software implementation of load-locked/
635	  store-conditional (LLSC). On machines which do not have hardware
636	  LLSC, this should be more efficient than the other alternative of
637	  disabling interrupts around the atomic sequence.
638
639config HW_PERF_EVENTS
640	bool "Enable hardware performance counter support for perf events"
641	depends on PERF_EVENTS && CPU_HAS_PMU
642	default y
643	help
644	  Enable hardware performance counter support for perf events. If
645	  disabled, perf events will use software events only.
646
647source "drivers/sh/Kconfig"
648
649endmenu
650
651menu "Boot options"
652
653config USE_BUILTIN_DTB
654	bool "Use builtin DTB"
655	default n
656	depends on SH_DEVICE_TREE
657	help
658	  Link a device tree blob for particular hardware into the kernel,
659	  suppressing use of the DTB pointer provided by the bootloader.
660	  This option should only be used with legacy bootloaders that are
661	  not capable of providing a DTB to the kernel, or for experimental
662	  hardware without stable device tree bindings.
663
664config BUILTIN_DTB_SOURCE
665	string "Source file for builtin DTB"
666	default ""
667	depends on USE_BUILTIN_DTB
668	help
669	  Base name (without suffix, relative to arch/sh/boot/dts) for the
670	  a DTS file that will be used to produce the DTB linked into the
671	  kernel.
672
673config ZERO_PAGE_OFFSET
674	hex
675	default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
676				SH_7751_SOLUTION_ENGINE
677	default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
678	default "0x00002000" if PAGE_SIZE_8KB
679	default "0x00001000"
680	help
681	  This sets the default offset of zero page.
682
683config BOOT_LINK_OFFSET
684	hex
685	default "0x00210000" if SH_SHMIN
686	default "0x00810000" if SH_7780_SOLUTION_ENGINE
687	default "0x009e0000" if SH_TITAN
688	default "0x01800000" if SH_SDK7780
689	default "0x02000000" if SH_EDOSK7760
690	default "0x00800000"
691	help
692	  This option allows you to set the link address offset of the zImage.
693	  This can be useful if you are on a board which has a small amount of
694	  memory.
695
696config ENTRY_OFFSET
697	hex
698	default "0x00001000" if PAGE_SIZE_4KB
699	default "0x00002000" if PAGE_SIZE_8KB
700	default "0x00004000" if PAGE_SIZE_16KB
701	default "0x00010000" if PAGE_SIZE_64KB
702	default "0x00000000"
703
704config ROMIMAGE_MMCIF
705	bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
706	depends on CPU_SUBTYPE_SH7724
707	help
708	  Say Y here to include experimental MMCIF loading code in
709	  romImage. With this enabled it is possible to write the romImage
710	  kernel image to an MMC card and boot the kernel straight from
711	  the reset vector. At reset the processor Mask ROM will load the
712	  first part of the romImage which in turn loads the rest the kernel
713	  image to RAM using the MMCIF hardware block.
714
715choice
716	prompt "Kernel command line"
717	optional
718	default CMDLINE_OVERWRITE
719	help
720	  Setting this option allows the kernel command line arguments
721	  to be set.
722
723config CMDLINE_OVERWRITE
724	bool "Overwrite bootloader kernel arguments"
725	help
726	  Given string will overwrite any arguments passed in by
727	  a bootloader.
728
729config CMDLINE_EXTEND
730	bool "Extend bootloader kernel arguments"
731	help
732	  Given string will be concatenated with arguments passed in
733	  by a bootloader.
734
735endchoice
736
737config CMDLINE
738	string "Kernel command line arguments string"
739	depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
740	default "console=ttySC1,115200"
741
742endmenu
743
744menu "Bus options"
745
746config SUPERHYWAY
747	tristate "SuperHyway Bus support"
748	depends on CPU_SUBTYPE_SH4_202
749
750config MAPLE
751	bool "Maple Bus support"
752	depends on SH_DREAMCAST
753	help
754	 The Maple Bus is SEGA's serial communication bus for peripherals
755	 on the Dreamcast. Without this bus support you won't be able to
756	 get your Dreamcast keyboard etc to work, so most users
757	 probably want to say 'Y' here, unless you are only using the
758	 Dreamcast with a serial line terminal or a remote network
759	 connection.
760
761endmenu
762
763menu "Power management options (EXPERIMENTAL)"
764
765source "kernel/power/Kconfig"
766
767source "drivers/cpuidle/Kconfig"
768
769endmenu
770