blob: c0405999677adab6380335e56fb76e5114878b2e [file] [log] [blame]
Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001# SPDX-License-Identifier: GPL-2.0
Linus Torvalds1da177e2005-04-16 15:20:36 -07002config MIPS
3 bool
4 default y
Yury Norov942fa982018-05-16 11:18:49 +03005 select ARCH_32BIT_OFF_T if !64BIT
Paul Burtonea6a3732018-11-07 23:14:09 +00006 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
Alexander Lobakin34c01e42020-01-22 13:58:51 +03007 select ARCH_HAS_FORTIFY_SOURCE
8 select ARCH_HAS_KCOV
9 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
Matt Redfearn12597982017-05-15 10:46:35 +010010 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
Hassan Naveed1e359182018-11-19 16:49:37 -080011 select ARCH_HAS_UBSAN_SANITIZE_ALL
Matt Redfearn12597982017-05-15 10:46:35 +010012 select ARCH_SUPPORTS_UPROBES
Ralf Baechle1ee36302015-09-29 12:19:48 +020013 select ARCH_USE_BUILTIN_BSWAP
Matt Redfearn12597982017-05-15 10:46:35 +010014 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
Paul Burton25da4e92017-06-09 17:26:42 -070015 select ARCH_USE_QUEUED_RWLOCKS
Paul Burton0b17c962017-06-09 17:26:43 -070016 select ARCH_USE_QUEUED_SPINLOCKS
Alexandre Ghiti9035bd22019-09-23 15:39:18 -070017 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
Matt Redfearn12597982017-05-15 10:46:35 +010018 select ARCH_WANT_IPC_PARSE_VERSION
Shile Zhang10916702019-12-04 08:46:31 +080019 select BUILDTIME_TABLE_SORT
Matt Redfearn12597982017-05-15 10:46:35 +010020 select CLONE_BACKWARDS
Paul Burton57eeace2018-11-08 23:44:55 +000021 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
Matt Redfearn12597982017-05-15 10:46:35 +010022 select CPU_PM if CPU_IDLE
23 select GENERIC_ATOMIC64 if !64BIT
24 select GENERIC_CLOCKEVENTS
25 select GENERIC_CMOS_UPDATE
26 select GENERIC_CPU_AUTOPROBE
Vincenzo Frascino24640f22019-06-21 10:52:46 +010027 select GENERIC_GETTIMEOFDAY
Paul Burtonb962aeb2018-08-29 14:54:00 -070028 select GENERIC_IOMAP
Matt Redfearn12597982017-05-15 10:46:35 +010029 select GENERIC_IRQ_PROBE
30 select GENERIC_IRQ_SHOW
Christoph Hellwig6630a8e2018-11-15 20:05:37 +010031 select GENERIC_ISA_DMA if EISA
Antony Pavlov740129b2018-04-11 08:50:19 +010032 select GENERIC_LIB_ASHLDI3
33 select GENERIC_LIB_ASHRDI3
34 select GENERIC_LIB_CMPDI2
35 select GENERIC_LIB_LSHRDI3
36 select GENERIC_LIB_UCMPDI2
Matt Redfearn12597982017-05-15 10:46:35 +010037 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
38 select GENERIC_SMP_IDLE_THREAD
39 select GENERIC_TIME_VSYSCALL
Christoph Hellwig446f0622019-07-11 20:56:52 -070040 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
Matt Redfearn12597982017-05-15 10:46:35 +010041 select HANDLE_DOMAIN_IRQ
Paul Burton906d4412018-08-20 15:36:18 -070042 select HAVE_ARCH_COMPILER_H
Matt Redfearn12597982017-05-15 10:46:35 +010043 select HAVE_ARCH_JUMP_LABEL
Jason Wessel88547002008-07-29 15:58:53 -050044 select HAVE_ARCH_KGDB
Matt Redfearn109c32f2016-11-24 17:32:45 +000045 select HAVE_ARCH_MMAP_RND_BITS if MMU
46 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
Markos Chandras490b0042014-01-22 14:40:04 +000047 select HAVE_ARCH_SECCOMP_FILTER
Ralf Baechlec0ff3c52012-08-17 08:22:04 +020048 select HAVE_ARCH_TRACEHOOK
Daniel Silsby45e03e62019-07-15 17:40:01 -040049 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
Masahiro Yamada2ff2b7e2019-08-19 14:54:20 +090050 select HAVE_ASM_MODVERSIONS
Paul Burton36366e32019-12-05 10:23:18 -080051 select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS
Matt Redfearn12597982017-05-15 10:46:35 +010052 select HAVE_CONTEXT_TRACKING
Frederic Weisbecker490f5612020-01-27 16:41:52 +010053 select HAVE_TIF_NOHZ
Matt Redfearn12597982017-05-15 10:46:35 +010054 select HAVE_COPY_THREAD_TLS
Wu Zhangjin64575f92010-10-27 18:59:09 +080055 select HAVE_C_RECORDMCOUNT
Matt Redfearn12597982017-05-15 10:46:35 +010056 select HAVE_DEBUG_KMEMLEAK
57 select HAVE_DEBUG_STACKOVERFLOW
Matt Redfearn12597982017-05-15 10:46:35 +010058 select HAVE_DMA_CONTIGUOUS
59 select HAVE_DYNAMIC_FTRACE
Alexander Lobakin34c01e42020-01-22 13:58:51 +030060 select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
Matt Redfearn12597982017-05-15 10:46:35 +010061 select HAVE_EXIT_THREAD
Christoph Hellwig67a929e2019-07-11 20:57:14 -070062 select HAVE_FAST_GUP
Matt Redfearn12597982017-05-15 10:46:35 +010063 select HAVE_FTRACE_MCOUNT_RECORD
Wu Zhangjin29c5d342009-11-20 20:34:34 +080064 select HAVE_FUNCTION_GRAPH_TRACER
Matt Redfearn12597982017-05-15 10:46:35 +010065 select HAVE_FUNCTION_TRACER
Alexander Lobakin34c01e42020-01-22 13:58:51 +030066 select HAVE_GCC_PLUGINS
67 select HAVE_GENERIC_VDSO
Matt Redfearn12597982017-05-15 10:46:35 +010068 select HAVE_IDE
Hassan Naveedb3a428b2018-10-29 18:27:41 -070069 select HAVE_IOREMAP_PROT
Matt Redfearn12597982017-05-15 10:46:35 +010070 select HAVE_IRQ_EXIT_ON_IRQ_STACK
71 select HAVE_IRQ_TIME_ACCOUNTING
David Daneyc1bf2072010-08-03 11:22:20 -070072 select HAVE_KPROBES
73 select HAVE_KRETPROBES
Paul Burtonc0436b52018-11-21 21:56:36 +000074 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
Tejun Heo9d15ffc2011-12-08 10:22:09 -080075 select HAVE_MEMBLOCK_NODE_MAP
David Howells786d35d2012-09-28 14:31:03 +093076 select HAVE_MOD_ARCH_SPECIFIC
Petr Mladek42a0bb32016-05-20 17:00:33 -070077 select HAVE_NMI
Matt Redfearn12597982017-05-15 10:46:35 +010078 select HAVE_OPROFILE
79 select HAVE_PERF_EVENTS
Marcin Nowakowski08bccf42016-09-02 10:13:21 +020080 select HAVE_REGS_AND_STACK_ACCESS_API
Paul Burton9ea141a2018-06-14 10:13:53 -070081 select HAVE_RSEQ
Hassan Naveed16c0f032019-11-15 23:44:49 +000082 select HAVE_SPARSE_SYSCALL_NR
Masahiro Yamadad148eac2018-06-14 19:36:45 +090083 select HAVE_STACKPROTECTOR
Matt Redfearn12597982017-05-15 10:46:35 +010084 select HAVE_SYSCALL_TRACEPOINTS
Ben Hutchingsa3f14312017-10-04 03:46:14 +010085 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
Matt Redfearn12597982017-05-15 10:46:35 +010086 select IRQ_FORCED_THREADING
Christoph Hellwig6630a8e2018-11-15 20:05:37 +010087 select ISA if EISA
Matt Redfearn12597982017-05-15 10:46:35 +010088 select MODULES_USE_ELF_REL if MODULES
Alexander Lobakin34c01e42020-01-22 13:58:51 +030089 select MODULES_USE_ELF_RELA if MODULES && 64BIT
Matt Redfearn12597982017-05-15 10:46:35 +010090 select PERF_USE_VMALLOC
Arnd Bergmann05a0a342018-08-28 16:26:30 +020091 select RTC_LIB
Matt Redfearn12597982017-05-15 10:46:35 +010092 select SYSCTL_EXCEPTION_TRACE
93 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -070094
Christoph Hellwigd3991572020-04-16 17:00:07 +020095config MIPS_FIXUP_BIGPHYS_ADDR
96 bool
97
Linus Torvalds1da177e2005-04-16 15:20:36 -070098menu "Machine selection"
99
Ralf Baechle5e83d432005-10-29 19:32:41 +0100100choice
101 prompt "System type"
Matt Redfearnd41e6852016-12-14 15:09:42 +0000102 default MIPS_GENERIC
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103
Paul Burtoneed0eab2016-10-05 18:18:20 +0100104config MIPS_GENERIC
105 bool "Generic board-agnostic MIPS kernel"
106 select BOOT_RAW
107 select BUILTIN_DTB
108 select CEVT_R4K
109 select CLKSRC_MIPS_GIC
110 select COMMON_CLK
Paul Burtoneed0eab2016-10-05 18:18:20 +0100111 select CPU_MIPSR2_IRQ_EI
Alexander Lobakin34c01e42020-01-22 13:58:51 +0300112 select CPU_MIPSR2_IRQ_VI
Paul Burtoneed0eab2016-10-05 18:18:20 +0100113 select CSRC_R4K
114 select DMA_PERDEV_COHERENT
Christoph Hellwigeb01d422018-11-15 20:05:32 +0100115 select HAVE_PCI
Paul Burtoneed0eab2016-10-05 18:18:20 +0100116 select IRQ_MIPS_CPU
Paul Burton0211d492018-07-27 18:23:21 -0700117 select MIPS_AUTO_PFN_OFFSET
Paul Burtoneed0eab2016-10-05 18:18:20 +0100118 select MIPS_CPU_SCACHE
119 select MIPS_GIC
120 select MIPS_L1_CACHE_SHIFT_7
121 select NO_EXCEPT_FILL
122 select PCI_DRIVERS_GENERIC
Paul Burtoneed0eab2016-10-05 18:18:20 +0100123 select SMP_UP if SMP
Matt Redfearna3078e52017-01-23 14:08:13 +0000124 select SWAP_IO_SPACE
Paul Burtoneed0eab2016-10-05 18:18:20 +0100125 select SYS_HAS_CPU_MIPS32_R1
126 select SYS_HAS_CPU_MIPS32_R2
127 select SYS_HAS_CPU_MIPS32_R6
128 select SYS_HAS_CPU_MIPS64_R1
129 select SYS_HAS_CPU_MIPS64_R2
130 select SYS_HAS_CPU_MIPS64_R6
131 select SYS_SUPPORTS_32BIT_KERNEL
132 select SYS_SUPPORTS_64BIT_KERNEL
133 select SYS_SUPPORTS_BIG_ENDIAN
134 select SYS_SUPPORTS_HIGHMEM
135 select SYS_SUPPORTS_LITTLE_ENDIAN
136 select SYS_SUPPORTS_MICROMIPS
Paul Burtoneed0eab2016-10-05 18:18:20 +0100137 select SYS_SUPPORTS_MIPS16
Alexander Lobakin34c01e42020-01-22 13:58:51 +0300138 select SYS_SUPPORTS_MIPS_CPS
Paul Burtoneed0eab2016-10-05 18:18:20 +0100139 select SYS_SUPPORTS_MULTITHREADING
140 select SYS_SUPPORTS_RELOCATABLE
141 select SYS_SUPPORTS_SMARTMIPS
Alexander Lobakin34c01e42020-01-22 13:58:51 +0300142 select UHI_BOOT
Corentin Labbe2e6522c2018-01-17 19:56:38 +0100143 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
144 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
145 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
146 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
147 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
148 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
Paul Burtoneed0eab2016-10-05 18:18:20 +0100149 select USE_OF
150 help
151 Select this to build a kernel which aims to support multiple boards,
152 generally using a flattened device tree passed from the bootloader
153 using the boot protocol defined in the UHI (Unified Hosting
154 Interface) specification.
155
Manuel Lauss42a4f172010-07-15 21:45:04 +0200156config MIPS_ALCHEMY
Yoichi Yuasac3543e22007-05-11 20:44:30 +0900157 bool "Alchemy processor based machines"
Christoph Hellwigd4a451d2018-04-03 16:24:20 +0200158 select PHYS_ADDR_T_64BIT
Ralf Baechlef772cdb2012-11-30 17:27:27 +0100159 select CEVT_R4K
Steven J. Hilld7ea3352012-11-14 23:34:17 -0600160 select CSRC_R4K
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200161 select IRQ_MIPS_CPU
Manuel Lauss88e9a932014-02-20 14:59:23 +0100162 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
Christoph Hellwigd3991572020-04-16 17:00:07 +0200163 select MIPS_FIXUP_BIGPHYS_ADDR if PCI
Manuel Lauss42a4f172010-07-15 21:45:04 +0200164 select SYS_HAS_CPU_MIPS32_R1
165 select SYS_SUPPORTS_32BIT_KERNEL
166 select SYS_SUPPORTS_APM_EMULATION
Linus Walleijd30a2b42016-04-19 11:23:22 +0200167 select GPIOLIB
Wu Zhangjin1b93b3c2009-10-14 18:12:16 +0800168 select SYS_SUPPORTS_ZBOOT
Manuel Lauss47440222014-07-23 16:36:48 +0200169 select COMMON_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170
Florian Fainelli7ca5dc12009-06-24 11:12:57 +0200171config AR7
172 bool "Texas Instruments AR7"
173 select BOOT_ELF32
174 select DMA_NONCOHERENT
175 select CEVT_R4K
176 select CSRC_R4K
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200177 select IRQ_MIPS_CPU
Florian Fainelli7ca5dc12009-06-24 11:12:57 +0200178 select NO_EXCEPT_FILL
179 select SWAP_IO_SPACE
180 select SYS_HAS_CPU_MIPS32_R1
181 select SYS_HAS_EARLY_PRINTK
182 select SYS_SUPPORTS_32BIT_KERNEL
183 select SYS_SUPPORTS_LITTLE_ENDIAN
Ralf Baechle377cb1b2014-04-29 01:49:24 +0200184 select SYS_SUPPORTS_MIPS16
Wu Zhangjin1b93b3c2009-10-14 18:12:16 +0800185 select SYS_SUPPORTS_ZBOOT_UART16550
Linus Walleijd30a2b42016-04-19 11:23:22 +0200186 select GPIOLIB
Florian Fainelli7ca5dc12009-06-24 11:12:57 +0200187 select VLYNQ
Yoichi Yuasa8551fb62012-08-01 15:38:00 +0900188 select HAVE_CLK
Florian Fainelli7ca5dc12009-06-24 11:12:57 +0200189 help
190 Support for the Texas Instruments AR7 System-on-a-Chip
191 family: TNETD7100, 7200 and 7300.
192
Sergey Ryazanov43cc7392014-10-29 03:18:38 +0400193config ATH25
194 bool "Atheros AR231x/AR531x SoC support"
195 select CEVT_R4K
196 select CSRC_R4K
197 select DMA_NONCOHERENT
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200198 select IRQ_MIPS_CPU
Sergey Ryazanov1753e742014-10-29 03:18:41 +0400199 select IRQ_DOMAIN
Sergey Ryazanov43cc7392014-10-29 03:18:38 +0400200 select SYS_HAS_CPU_MIPS32_R1
201 select SYS_SUPPORTS_BIG_ENDIAN
202 select SYS_SUPPORTS_32BIT_KERNEL
Sergey Ryazanov8aaa7272014-10-29 03:18:42 +0400203 select SYS_HAS_EARLY_PRINTK
Sergey Ryazanov43cc7392014-10-29 03:18:38 +0400204 help
205 Support for Atheros AR231x and Atheros AR531x based boards
206
Gabor Juhosd4a67d92011-01-04 21:28:14 +0100207config ATH79
208 bool "Atheros AR71XX/AR724X/AR913X based boards"
Alban Bedelff591a92015-08-03 19:23:52 +0200209 select ARCH_HAS_RESET_CONTROLLER
Gabor Juhosd4a67d92011-01-04 21:28:14 +0100210 select BOOT_RAW
211 select CEVT_R4K
212 select CSRC_R4K
213 select DMA_NONCOHERENT
Linus Walleijd30a2b42016-04-19 11:23:22 +0200214 select GPIOLIB
John Crispina08227a2018-07-20 13:58:20 +0200215 select PINCTRL
Gabor Juhos94638062012-08-04 18:01:26 +0200216 select HAVE_CLK
Alban Bedel411520a2015-04-19 14:30:04 +0200217 select COMMON_CLK
Gabor Juhos2c4f1ac2013-08-28 10:41:47 +0200218 select CLKDEV_LOOKUP
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200219 select IRQ_MIPS_CPU
Gabor Juhosd4a67d92011-01-04 21:28:14 +0100220 select SYS_HAS_CPU_MIPS32_R2
221 select SYS_HAS_EARLY_PRINTK
222 select SYS_SUPPORTS_32BIT_KERNEL
223 select SYS_SUPPORTS_BIG_ENDIAN
Ralf Baechle377cb1b2014-04-29 01:49:24 +0200224 select SYS_SUPPORTS_MIPS16
Alban Bedelb3f0a252016-01-26 09:38:29 +0100225 select SYS_SUPPORTS_ZBOOT_UART_PROM
Alban Bedel03c8c402015-05-31 01:52:25 +0200226 select USE_OF
Alban Bedel53d473f2018-03-24 23:47:22 +0100227 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
Gabor Juhosd4a67d92011-01-04 21:28:14 +0100228 help
229 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
230
Kevin Cernekee5f2d4452014-12-25 09:49:00 -0800231config BMIPS_GENERIC
232 bool "Broadcom Generic BMIPS kernel"
Christoph Hellwigd59098a2018-06-15 13:08:52 +0200233 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
234 select ARCH_HAS_PHYS_TO_DMA
Kevin Cernekeed666cd02014-10-20 21:28:05 -0700235 select BOOT_RAW
236 select NO_EXCEPT_FILL
237 select USE_OF
238 select CEVT_R4K
239 select CSRC_R4K
240 select SYNC_R4K
241 select COMMON_CLK
Simon Arlottc7c42ec2015-11-22 14:30:14 +0000242 select BCM6345_L1_IRQ
Kevin Cernekee60b858f2014-12-25 09:49:17 -0800243 select BCM7038_L1_IRQ
244 select BCM7120_L2_IRQ
245 select BRCMSTB_L2_IRQ
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200246 select IRQ_MIPS_CPU
Kevin Cernekee60b858f2014-12-25 09:49:17 -0800247 select DMA_NONCOHERENT
Kevin Cernekeed666cd02014-10-20 21:28:05 -0700248 select SYS_SUPPORTS_32BIT_KERNEL
Kevin Cernekee60b858f2014-12-25 09:49:17 -0800249 select SYS_SUPPORTS_LITTLE_ENDIAN
Kevin Cernekeed666cd02014-10-20 21:28:05 -0700250 select SYS_SUPPORTS_BIG_ENDIAN
251 select SYS_SUPPORTS_HIGHMEM
Kevin Cernekee60b858f2014-12-25 09:49:17 -0800252 select SYS_HAS_CPU_BMIPS32_3300
253 select SYS_HAS_CPU_BMIPS4350
254 select SYS_HAS_CPU_BMIPS4380
Kevin Cernekeed666cd02014-10-20 21:28:05 -0700255 select SYS_HAS_CPU_BMIPS5000
256 select SWAP_IO_SPACE
Kevin Cernekee60b858f2014-12-25 09:49:17 -0800257 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
258 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
259 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
260 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
Justin Chen4dc47042017-05-24 10:55:16 -0700261 select HARDIRQS_SW_RESEND
Kevin Cernekeed666cd02014-10-20 21:28:05 -0700262 help
Kevin Cernekee5f2d4452014-12-25 09:49:00 -0800263 Build a generic DT-based kernel image that boots on select
264 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
265 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
266 must be set appropriately for your board.
Kevin Cernekeed666cd02014-10-20 21:28:05 -0700267
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +0200268config BCM47XX
Florian Fainellic6193662010-03-25 11:42:41 +0100269 bool "Broadcom BCM47XX based boards"
Hauke Mehrtensfe08f8c2012-12-26 20:06:17 +0000270 select BOOT_RAW
Ralf Baechle42f77542007-10-18 17:48:11 +0100271 select CEVT_R4K
Ralf Baechle940f6b42007-11-24 22:33:28 +0000272 select CSRC_R4K
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +0200273 select DMA_NONCOHERENT
Christoph Hellwigeb01d422018-11-15 20:05:32 +0100274 select HAVE_PCI
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200275 select IRQ_MIPS_CPU
Markos Chandras314878d2013-07-23 15:40:37 +0100276 select SYS_HAS_CPU_MIPS32_R1
Hauke Mehrtensdd54ded2012-12-26 20:06:18 +0000277 select NO_EXCEPT_FILL
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +0200278 select SYS_SUPPORTS_32BIT_KERNEL
279 select SYS_SUPPORTS_LITTLE_ENDIAN
Ralf Baechle377cb1b2014-04-29 01:49:24 +0200280 select SYS_SUPPORTS_MIPS16
Aaro Koskinen65078312018-01-17 00:21:44 +0200281 select SYS_SUPPORTS_ZBOOT
Aurelien Jarno25e5fb92007-09-25 15:41:24 +0200282 select SYS_HAS_EARLY_PRINTK
Ralf Baechlee6086552014-03-26 21:40:25 +0100283 select USE_GENERIC_EARLY_PRINTK_8250
Rafał Miłeckic949c0b2014-06-17 16:36:50 +0200284 select GPIOLIB
285 select LEDS_GPIO_REGISTER
Rafał Miłeckif6e734a2015-06-10 23:05:08 +0200286 select BCM47XX_NVRAM
Rafał Miłecki2ab71a02016-01-25 09:50:29 +0100287 select BCM47XX_SPROM
Matt Redfearndfe00492017-11-14 17:16:27 +0000288 select BCM47XX_SSB if !BCM47XX_BCMA
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +0200289 help
Enrico Weigelt, metux IT consult371a4152019-03-11 16:54:27 +0100290 Support for BCM47XX based boards
Aurelien Jarno1c0c13e2007-09-25 15:40:12 +0200291
Maxime Bizone7300d02009-08-18 13:23:37 +0100292config BCM63XX
293 bool "Broadcom BCM63XX based boards"
Florian Fainelliae8de612013-06-18 16:55:39 +0000294 select BOOT_RAW
Maxime Bizone7300d02009-08-18 13:23:37 +0100295 select CEVT_R4K
296 select CSRC_R4K
Jonas Gorskifc264022014-07-08 16:26:13 +0200297 select SYNC_R4K
Maxime Bizone7300d02009-08-18 13:23:37 +0100298 select DMA_NONCOHERENT
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200299 select IRQ_MIPS_CPU
Maxime Bizone7300d02009-08-18 13:23:37 +0100300 select SYS_SUPPORTS_32BIT_KERNEL
301 select SYS_SUPPORTS_BIG_ENDIAN
302 select SYS_HAS_EARLY_PRINTK
303 select SWAP_IO_SPACE
Linus Walleijd30a2b42016-04-19 11:23:22 +0200304 select GPIOLIB
Yoichi Yuasa3e82eee2012-08-01 15:39:52 +0900305 select HAVE_CLK
Florian Fainelliaf2418b2014-01-14 09:54:40 -0800306 select MIPS_L1_CACHE_SHIFT_4
Jonas Gorskic5af3c22017-09-20 13:14:01 +0200307 select CLKDEV_LOOKUP
Maxime Bizone7300d02009-08-18 13:23:37 +0100308 help
Enrico Weigelt, metux IT consult371a4152019-03-11 16:54:27 +0100309 Support for BCM63XX based boards
Maxime Bizone7300d02009-08-18 13:23:37 +0100310
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311config MIPS_COBALT
Martin Michlmayr3fa986f2006-05-09 23:34:53 +0200312 bool "Cobalt Server"
Ralf Baechle42f77542007-10-18 17:48:11 +0100313 select CEVT_R4K
Ralf Baechle940f6b42007-11-24 22:33:28 +0000314 select CSRC_R4K
Yoichi Yuasa1097c6a2007-10-22 19:43:15 +0900315 select CEVT_GT641XX
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316 select DMA_NONCOHERENT
Christoph Hellwigeb01d422018-11-15 20:05:32 +0100317 select FORCE_PCI
Ralf Baechled865bea2007-10-11 23:46:10 +0100318 select I8253
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319 select I8259
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200320 select IRQ_MIPS_CPU
Yoichi Yuasad5ab1a62007-09-13 23:51:26 +0900321 select IRQ_GT641XX
Yoichi Yuasa252161e2007-03-14 21:51:26 +0900322 select PCI_GT64XXX_PCI0
Ralf Baechle7cf80532005-10-20 22:33:09 +0100323 select SYS_HAS_CPU_NEVADA
Yoichi Yuasa0a22e0d2007-03-02 12:42:33 +0900324 select SYS_HAS_EARLY_PRINTK
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -0700325 select SYS_SUPPORTS_32BIT_KERNEL
Florian Fainelli0e8774b2008-01-15 19:42:57 +0100326 select SYS_SUPPORTS_64BIT_KERNEL
Ralf Baechle5e83d432005-10-29 19:32:41 +0100327 select SYS_SUPPORTS_LITTLE_ENDIAN
Ralf Baechlee6086552014-03-26 21:40:25 +0100328 select USE_GENERIC_EARLY_PRINTK_8250
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329
330config MACH_DECSTATION
Martin Michlmayr3fa986f2006-05-09 23:34:53 +0200331 bool "DECstations"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332 select BOOT_ELF32
Yoichi Yuasa6457d9f2008-04-25 12:11:44 +0900333 select CEVT_DS1287
Maciej W. Rozycki81d10ba2014-04-06 21:46:05 +0100334 select CEVT_R4K if CPU_R4X00
Yoichi Yuasa42474172008-04-24 09:48:40 +0900335 select CSRC_IOASIC
Maciej W. Rozycki81d10ba2014-04-06 21:46:05 +0100336 select CSRC_R4K if CPU_R4X00
Maciej W. Rozycki20d60d92007-10-23 12:43:11 +0100337 select CPU_DADDI_WORKAROUNDS if 64BIT
338 select CPU_R4000_WORKAROUNDS if 64BIT
339 select CPU_R4400_WORKAROUNDS if 64BIT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340 select DMA_NONCOHERENT
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700341 select NO_IOPORT_MAP
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200342 select IRQ_MIPS_CPU
Ralf Baechle7cf80532005-10-20 22:33:09 +0100343 select SYS_HAS_CPU_R3000
344 select SYS_HAS_CPU_R4X00
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -0700345 select SYS_SUPPORTS_32BIT_KERNEL
Kees Cook7d607172013-01-16 18:53:19 -0800346 select SYS_SUPPORTS_64BIT_KERNEL
Ralf Baechle5e83d432005-10-29 19:32:41 +0100347 select SYS_SUPPORTS_LITTLE_ENDIAN
Atsushi Nemoto1723b4a2006-06-20 00:19:13 +0900348 select SYS_SUPPORTS_128HZ
349 select SYS_SUPPORTS_256HZ
350 select SYS_SUPPORTS_1024HZ
Florian Fainelli930beb52014-01-14 09:54:38 -0800351 select MIPS_L1_CACHE_SHIFT_4
Ralf Baechle5e83d432005-10-29 19:32:41 +0100352 help
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353 This enables support for DEC's MIPS based workstations. For details
354 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
355 DECstation porting pages on <http://decstation.unix-ag.org/>.
356
357 If you have one of the following DECstation Models you definitely
358 want to choose R4xx0 for the CPU Type:
359
Ralf Baechle93088162007-08-29 14:21:45 +0100360 DECstation 5000/50
361 DECstation 5000/150
362 DECstation 5000/260
363 DECsystem 5900/260
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364
365 otherwise choose R3000.
366
Ralf Baechle5e83d432005-10-29 19:32:41 +0100367config MACH_JAZZ
Martin Michlmayr3fa986f2006-05-09 23:34:53 +0200368 bool "Jazz family of machines"
Thomas Bogendoerfer39b2d752019-10-09 15:27:14 +0200369 select ARC_MEMORY
370 select ARC_PROMLIB
Ralf Baechlea211a0822018-02-05 15:37:43 +0100371 select ARCH_MIGHT_HAVE_PC_PARPORT
Ralf Baechle7a407aa2018-02-05 16:40:00 +0100372 select ARCH_MIGHT_HAVE_PC_SERIO
Ralf Baechle0e2794b2012-11-15 20:48:50 +0100373 select FW_ARC
374 select FW_ARC32
Ralf Baechle5e83d432005-10-29 19:32:41 +0100375 select ARCH_MAY_HAVE_PC_FDC
Ralf Baechle42f77542007-10-18 17:48:11 +0100376 select CEVT_R4K
Ralf Baechle940f6b42007-11-24 22:33:28 +0000377 select CSRC_R4K
Thomas Bogendoerfere2defae2007-12-02 13:00:32 +0100378 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
Ralf Baechle5e83d432005-10-29 19:32:41 +0100379 select GENERIC_ISA_DMA
Ralf Baechle8a118c32011-06-01 19:05:10 +0100380 select HAVE_PCSPKR_PLATFORM
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200381 select IRQ_MIPS_CPU
Ralf Baechled865bea2007-10-11 23:46:10 +0100382 select I8253
Ralf Baechle5e83d432005-10-29 19:32:41 +0100383 select I8259
384 select ISA
Ralf Baechle7cf80532005-10-20 22:33:09 +0100385 select SYS_HAS_CPU_R4X00
Ralf Baechle5e83d432005-10-29 19:32:41 +0100386 select SYS_SUPPORTS_32BIT_KERNEL
Kees Cook7d607172013-01-16 18:53:19 -0800387 select SYS_SUPPORTS_64BIT_KERNEL
Atsushi Nemoto1723b4a2006-06-20 00:19:13 +0900388 select SYS_SUPPORTS_100HZ
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389 help
Enrico Weigelt, metux IT consult371a4152019-03-11 16:54:27 +0100390 This a family of machines based on the MIPS R4030 chipset which was
391 used by several vendors to build RISC/os and Windows NT workstations.
392 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
393 Olivetti M700-10 workstations.
Ralf Baechle5e83d432005-10-29 19:32:41 +0100394
Paul Burtonde361e82015-05-24 16:11:13 +0100395config MACH_INGENIC
396 bool "Ingenic SoC based machines"
Lars-Peter Clausen5ebabe52010-06-19 04:08:19 +0000397 select SYS_SUPPORTS_32BIT_KERNEL
398 select SYS_SUPPORTS_LITTLE_ENDIAN
Lluís Batlle i Rossellf9c9aff2012-03-30 16:48:05 +0200399 select SYS_SUPPORTS_ZBOOT_UART16550
Daniel Silsbyb35d2652019-07-15 17:40:02 -0400400 select CPU_SUPPORTS_HUGEPAGES
Lars-Peter Clausen5ebabe52010-06-19 04:08:19 +0000401 select DMA_NONCOHERENT
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200402 select IRQ_MIPS_CPU
Paul Cercueil37b4c3c2017-05-12 18:52:58 +0200403 select PINCTRL
Linus Walleijd30a2b42016-04-19 11:23:22 +0200404 select GPIOLIB
Paul Burtonff1930c2015-05-24 16:11:36 +0100405 select COMMON_CLK
Lars-Peter Clausen83bc7692011-09-24 02:29:46 +0200406 select GENERIC_IRQ_CHIP
Paul Cercueil15205fc2019-02-21 19:43:10 -0300407 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
Paul Burtonffb1843d052015-05-24 16:11:15 +0100408 select USE_OF
Lars-Peter Clausen5ebabe52010-06-19 04:08:19 +0000409
John Crispin171bb2f2011-03-30 09:27:47 +0200410config LANTIQ
411 bool "Lantiq based platforms"
412 select DMA_NONCOHERENT
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200413 select IRQ_MIPS_CPU
John Crispin171bb2f2011-03-30 09:27:47 +0200414 select CEVT_R4K
415 select CSRC_R4K
416 select SYS_HAS_CPU_MIPS32_R1
417 select SYS_HAS_CPU_MIPS32_R2
418 select SYS_SUPPORTS_BIG_ENDIAN
419 select SYS_SUPPORTS_32BIT_KERNEL
Ralf Baechle377cb1b2014-04-29 01:49:24 +0200420 select SYS_SUPPORTS_MIPS16
John Crispin171bb2f2011-03-30 09:27:47 +0200421 select SYS_SUPPORTS_MULTITHREADING
James Hoganf35764e2018-01-15 20:54:35 +0000422 select SYS_SUPPORTS_VPE_LOADER
John Crispin171bb2f2011-03-30 09:27:47 +0200423 select SYS_HAS_EARLY_PRINTK
Linus Walleijd30a2b42016-04-19 11:23:22 +0200424 select GPIOLIB
John Crispin171bb2f2011-03-30 09:27:47 +0200425 select SWAP_IO_SPACE
426 select BOOT_RAW
John Crispin287e3f32012-04-17 15:53:19 +0200427 select CLKDEV_LOOKUP
John Crispina0392222012-04-13 20:56:13 +0200428 select USE_OF
John Crispin3f8c50c2012-08-28 12:44:59 +0200429 select PINCTRL
430 select PINCTRL_LANTIQ
John Crispinc5307812013-09-03 13:18:12 +0200431 select ARCH_HAS_RESET_CONTROLLER
432 select RESET_CONTROLLER
John Crispin171bb2f2011-03-30 09:27:47 +0200433
Huacai Chen30ad29b2015-04-21 10:00:35 +0800434config MACH_LOONGSON32
Huacai Chencaed1d12019-11-04 14:11:21 +0800435 bool "Loongson 32-bit family of machines"
Wu Zhangjinc7e8c662010-01-04 17:16:46 +0800436 select SYS_SUPPORTS_ZBOOT
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900437 help
Huacai Chen30ad29b2015-04-21 10:00:35 +0800438 This enables support for the Loongson-1 family of machines.
Wu Zhangjin85749d22009-07-02 23:26:45 +0800439
Huacai Chen30ad29b2015-04-21 10:00:35 +0800440 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
441 the Institute of Computing Technology (ICT), Chinese Academy of
442 Sciences (CAS).
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900443
Jiaxun Yang71e2f4d2019-10-20 22:43:14 +0800444config MACH_LOONGSON2EF
445 bool "Loongson-2E/F family of machines"
Kelvin Cheungca585cf2012-07-25 16:17:24 +0200446 select SYS_SUPPORTS_ZBOOT
447 help
Jiaxun Yang71e2f4d2019-10-20 22:43:14 +0800448 This enables the support of early Loongson-2E/F family of machines.
Kelvin Cheungca585cf2012-07-25 16:17:24 +0200449
Jiaxun Yang71e2f4d2019-10-20 22:43:14 +0800450config MACH_LOONGSON64
Huacai Chencaed1d12019-11-04 14:11:21 +0800451 bool "Loongson 64-bit family of machines"
Jiaxun Yang6fbde6b2019-10-20 23:01:36 +0800452 select ARCH_SPARSEMEM_ENABLE
453 select ARCH_MIGHT_HAVE_PC_PARPORT
454 select ARCH_MIGHT_HAVE_PC_SERIO
455 select GENERIC_ISA_DMA_SUPPORT_BROKEN
456 select BOOT_ELF32
457 select BOARD_SCACHE
458 select CSRC_R4K
459 select CEVT_R4K
460 select CPU_HAS_WB
461 select FORCE_PCI
462 select ISA
463 select I8259
464 select IRQ_MIPS_CPU
Tiezhu Yang5125bfe2020-03-31 15:00:06 +0800465 select NR_CPUS_DEFAULT_64
Jiaxun Yang6fbde6b2019-10-20 23:01:36 +0800466 select USE_GENERIC_EARLY_PRINTK_8250
Jiaxun Yang6423e592020-05-26 17:21:16 +0800467 select PCI_DRIVERS_GENERIC
Jiaxun Yang6fbde6b2019-10-20 23:01:36 +0800468 select SYS_HAS_CPU_LOONGSON64
469 select SYS_HAS_EARLY_PRINTK
470 select SYS_SUPPORTS_SMP
471 select SYS_SUPPORTS_HOTPLUG_CPU
472 select SYS_SUPPORTS_NUMA
473 select SYS_SUPPORTS_64BIT_KERNEL
474 select SYS_SUPPORTS_HIGHMEM
475 select SYS_SUPPORTS_LITTLE_ENDIAN
Jiaxun Yang71e2f4d2019-10-20 22:43:14 +0800476 select SYS_SUPPORTS_ZBOOT
Jiaxun Yang6fbde6b2019-10-20 23:01:36 +0800477 select ZONE_DMA32
478 select NUMA
Jiaxun Yang87fcfa72020-03-25 11:55:02 +0800479 select COMMON_CLK
480 select USE_OF
481 select BUILTIN_DTB
Jiaxun Yang71e2f4d2019-10-20 22:43:14 +0800482 help
Huacai Chencaed1d12019-11-04 14:11:21 +0800483 This enables the support of Loongson-2/3 family of machines.
484
485 Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
486 GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
487 and Loongson-2F which will be removed), developed by the Institute
488 of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
Kelvin Cheungca585cf2012-07-25 16:17:24 +0200489
Andrew Bresticker6a438302015-03-16 14:43:10 -0700490config MACH_PISTACHIO
491 bool "IMG Pistachio SoC based boards"
Andrew Bresticker6a438302015-03-16 14:43:10 -0700492 select BOOT_ELF32
493 select BOOT_RAW
494 select CEVT_R4K
495 select CLKSRC_MIPS_GIC
496 select COMMON_CLK
497 select CSRC_R4K
Zubair Lutfullah Kakakhel645c7822016-06-03 09:35:00 +0100498 select DMA_NONCOHERENT
Linus Walleijd30a2b42016-04-19 11:23:22 +0200499 select GPIOLIB
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200500 select IRQ_MIPS_CPU
Andrew Bresticker6a438302015-03-16 14:43:10 -0700501 select MFD_SYSCON
502 select MIPS_CPU_SCACHE
503 select MIPS_GIC
504 select PINCTRL
505 select REGULATOR
506 select SYS_HAS_CPU_MIPS32_R2
507 select SYS_SUPPORTS_32BIT_KERNEL
508 select SYS_SUPPORTS_LITTLE_ENDIAN
509 select SYS_SUPPORTS_MIPS_CPS
510 select SYS_SUPPORTS_MULTITHREADING
Matt Redfearn41cc07b2016-05-25 12:58:40 +0100511 select SYS_SUPPORTS_RELOCATABLE
Andrew Bresticker6a438302015-03-16 14:43:10 -0700512 select SYS_SUPPORTS_ZBOOT
Ezequiel Garcia018f62e2015-04-28 19:08:35 -0300513 select SYS_HAS_EARLY_PRINTK
514 select USE_GENERIC_EARLY_PRINTK_8250
Andrew Bresticker6a438302015-03-16 14:43:10 -0700515 select USE_OF
516 help
517 This enables support for the IMG Pistachio SoC platform.
518
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519config MIPS_MALTA
Martin Michlmayr3fa986f2006-05-09 23:34:53 +0200520 bool "MIPS Malta board"
Ralf Baechle61ed2422005-09-15 08:52:34 +0000521 select ARCH_MAY_HAVE_PC_FDC
Ralf Baechlea211a0822018-02-05 15:37:43 +0100522 select ARCH_MIGHT_HAVE_PC_PARPORT
Ralf Baechle7a407aa2018-02-05 16:40:00 +0100523 select ARCH_MIGHT_HAVE_PC_SERIO
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524 select BOOT_ELF32
Ralf Baechlefa71c962008-01-29 10:15:00 +0000525 select BOOT_RAW
Paul Burtone8823d22015-05-22 16:51:02 +0100526 select BUILTIN_DTB
Ralf Baechle42f77542007-10-18 17:48:11 +0100527 select CEVT_R4K
Andrew Brestickerfa5635a2014-10-20 12:03:58 -0700528 select CLKSRC_MIPS_GIC
Guenter Roeck42b002a2015-08-22 02:40:41 -0700529 select COMMON_CLK
Maksym Kokhan47bf2b02018-11-12 19:00:59 +0200530 select CSRC_R4K
Felix Fietkau885014b2013-09-27 14:41:44 +0200531 select DMA_MAYBE_COHERENT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700532 select GENERIC_ISA_DMA
Ralf Baechle8a118c32011-06-01 19:05:10 +0100533 select HAVE_PCSPKR_PLATFORM
Christoph Hellwigeb01d422018-11-15 20:05:32 +0100534 select HAVE_PCI
Ralf Baechled865bea2007-10-11 23:46:10 +0100535 select I8253
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536 select I8259
Maksym Kokhan47bf2b02018-11-12 19:00:59 +0200537 select IRQ_MIPS_CPU
Ralf Baechle5e83d432005-10-29 19:32:41 +0100538 select MIPS_BONITO64
Chris Dearman9318c512006-06-20 17:15:20 +0100539 select MIPS_CPU_SCACHE
Maksym Kokhan47bf2b02018-11-12 19:00:59 +0200540 select MIPS_GIC
Kevin Cernekeea7ef1ea2014-10-20 21:27:57 -0700541 select MIPS_L1_CACHE_SHIFT_6
Ralf Baechle5e83d432005-10-29 19:32:41 +0100542 select MIPS_MSC
Maksym Kokhan47bf2b02018-11-12 19:00:59 +0200543 select PCI_GT64XXX_PCI0
Paul Burtonecafe3e2015-09-22 11:58:43 -0700544 select SMP_UP if SMP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545 select SWAP_IO_SPACE
Ralf Baechle7cf80532005-10-20 22:33:09 +0100546 select SYS_HAS_CPU_MIPS32_R1
547 select SYS_HAS_CPU_MIPS32_R2
Markos Chandrasbfc3c5a2014-01-16 13:12:36 +0000548 select SYS_HAS_CPU_MIPS32_R3_5
Steven J. Hillc5b36782015-02-26 18:16:38 -0600549 select SYS_HAS_CPU_MIPS32_R5
Markos Chandras575509b2014-11-19 11:31:56 +0000550 select SYS_HAS_CPU_MIPS32_R6
Ralf Baechle7cf80532005-10-20 22:33:09 +0100551 select SYS_HAS_CPU_MIPS64_R1
Leonid Yegoshin5d9fbed2012-07-19 09:11:15 +0200552 select SYS_HAS_CPU_MIPS64_R2
Markos Chandras575509b2014-11-19 11:31:56 +0000553 select SYS_HAS_CPU_MIPS64_R6
Ralf Baechle7cf80532005-10-20 22:33:09 +0100554 select SYS_HAS_CPU_NEVADA
555 select SYS_HAS_CPU_RM7000
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -0700556 select SYS_SUPPORTS_32BIT_KERNEL
557 select SYS_SUPPORTS_64BIT_KERNEL
Ralf Baechle5e83d432005-10-29 19:32:41 +0100558 select SYS_SUPPORTS_BIG_ENDIAN
Steven J. Hillc5b36782015-02-26 18:16:38 -0600559 select SYS_SUPPORTS_HIGHMEM
Ralf Baechle5e83d432005-10-29 19:32:41 +0100560 select SYS_SUPPORTS_LITTLE_ENDIAN
Maciej W. Rozycki424ebcd2014-11-15 22:07:07 +0000561 select SYS_SUPPORTS_MICROMIPS
Maksym Kokhan47bf2b02018-11-12 19:00:59 +0200562 select SYS_SUPPORTS_MIPS16
Tim Anderson03650702009-06-17 16:22:53 -0700563 select SYS_SUPPORTS_MIPS_CMP
Paul Burtone56b6aa2014-01-15 10:31:56 +0000564 select SYS_SUPPORTS_MIPS_CPS
Ralf Baechlef41ae0b2006-06-05 17:24:46 +0100565 select SYS_SUPPORTS_MULTITHREADING
Maksym Kokhan47bf2b02018-11-12 19:00:59 +0200566 select SYS_SUPPORTS_RELOCATABLE
Franck Bui-Huu9693a852007-02-02 17:41:47 +0100567 select SYS_SUPPORTS_SMARTMIPS
James Hoganf35764e2018-01-15 20:54:35 +0000568 select SYS_SUPPORTS_VPE_LOADER
Wu Zhangjin1b93b3c2009-10-14 18:12:16 +0800569 select SYS_SUPPORTS_ZBOOT
Paul Burtone8823d22015-05-22 16:51:02 +0100570 select USE_OF
James Hoganabcc82b2015-04-27 15:07:19 +0100571 select ZONE_DMA32 if 64BIT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572 help
Maciej W. Rozyckif638d192005-02-02 22:23:46 +0000573 This enables support for the MIPS Technologies Malta evaluation
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574 board.
575
Joshua Henderson2572f002016-01-13 18:15:39 -0700576config MACH_PIC32
577 bool "Microchip PIC32 Family"
578 help
579 This enables support for the Microchip PIC32 family of platforms.
580
581 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
582 microcontrollers.
583
Ralf Baechle5e83d432005-10-29 19:32:41 +0100584config MACH_VR41XX
Yoichi Yuasa74142d62007-04-26 19:45:09 +0900585 bool "NEC VR4100 series based machines"
Ralf Baechle42f77542007-10-18 17:48:11 +0100586 select CEVT_R4K
Ralf Baechle940f6b42007-11-24 22:33:28 +0000587 select CSRC_R4K
Ralf Baechle7cf80532005-10-20 22:33:09 +0100588 select SYS_HAS_CPU_VR41XX
Ralf Baechle377cb1b2014-04-29 01:49:24 +0200589 select SYS_SUPPORTS_MIPS16
Linus Walleijd30a2b42016-04-19 11:23:22 +0200590 select GPIOLIB
Ralf Baechle5e83d432005-10-29 19:32:41 +0100591
Daniel Lairdedb63102008-06-16 15:49:21 +0100592config NXP_STB220
593 bool "NXP STB220 board"
594 select SOC_PNX833X
595 help
Enrico Weigelt, metux IT consult371a4152019-03-11 16:54:27 +0100596 Support for NXP Semiconductors STB220 Development Board.
Daniel Lairdedb63102008-06-16 15:49:21 +0100597
598config NXP_STB225
599 bool "NXP 225 board"
600 select SOC_PNX833X
601 select SOC_PNX8335
602 help
Enrico Weigelt, metux IT consult371a4152019-03-11 16:54:27 +0100603 Support for NXP Semiconductors STB225 Development Board.
Daniel Lairdedb63102008-06-16 15:49:21 +0100604
John Crispinae2b5bb2013-01-20 22:05:30 +0100605config RALINK
606 bool "Ralink based machines"
607 select CEVT_R4K
608 select CSRC_R4K
609 select BOOT_RAW
610 select DMA_NONCOHERENT
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200611 select IRQ_MIPS_CPU
John Crispinae2b5bb2013-01-20 22:05:30 +0100612 select USE_OF
613 select SYS_HAS_CPU_MIPS32_R1
614 select SYS_HAS_CPU_MIPS32_R2
615 select SYS_SUPPORTS_32BIT_KERNEL
616 select SYS_SUPPORTS_LITTLE_ENDIAN
Ralf Baechle377cb1b2014-04-29 01:49:24 +0200617 select SYS_SUPPORTS_MIPS16
John Crispinae2b5bb2013-01-20 22:05:30 +0100618 select SYS_HAS_EARLY_PRINTK
John Crispinae2b5bb2013-01-20 22:05:30 +0100619 select CLKDEV_LOOKUP
John Crispin2a153f12013-09-04 00:16:59 +0200620 select ARCH_HAS_RESET_CONTROLLER
621 select RESET_CONTROLLER
John Crispinae2b5bb2013-01-20 22:05:30 +0100622
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623config SGI_IP22
Martin Michlmayr3fa986f2006-05-09 23:34:53 +0200624 bool "SGI IP22 (Indy/Indigo2)"
Thomas Bogendoerferc0de00b2019-10-09 15:27:17 +0200625 select ARC_MEMORY
Thomas Bogendoerfer39b2d752019-10-09 15:27:14 +0200626 select ARC_PROMLIB
Ralf Baechle0e2794b2012-11-15 20:48:50 +0100627 select FW_ARC
628 select FW_ARC32
Ralf Baechle7a407aa2018-02-05 16:40:00 +0100629 select ARCH_MIGHT_HAVE_PC_SERIO
Linus Torvalds1da177e2005-04-16 15:20:36 -0700630 select BOOT_ELF32
Ralf Baechle42f77542007-10-18 17:48:11 +0100631 select CEVT_R4K
Ralf Baechle940f6b42007-11-24 22:33:28 +0000632 select CSRC_R4K
Thomas Bogendoerfere2defae2007-12-02 13:00:32 +0100633 select DEFAULT_SGI_PARTITION
Linus Torvalds1da177e2005-04-16 15:20:36 -0700634 select DMA_NONCOHERENT
Christoph Hellwig6630a8e2018-11-15 20:05:37 +0100635 select HAVE_EISA
Ralf Baechled865bea2007-10-11 23:46:10 +0100636 select I8253
Thomas Bogendoerfer68de4802007-11-23 20:34:16 +0100637 select I8259
Linus Torvalds1da177e2005-04-16 15:20:36 -0700638 select IP22_CPU_SCACHE
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200639 select IRQ_MIPS_CPU
Ralf Baechleaa414df2006-11-30 01:14:51 +0000640 select GENERIC_ISA_DMA_SUPPORT_BROKEN
Thomas Bogendoerfere2defae2007-12-02 13:00:32 +0100641 select SGI_HAS_I8042
642 select SGI_HAS_INDYDOG
Thomas Bogendoerfer36e5c212008-07-16 14:06:15 +0200643 select SGI_HAS_HAL2
Thomas Bogendoerfere2defae2007-12-02 13:00:32 +0100644 select SGI_HAS_SEEQ
645 select SGI_HAS_WD93
646 select SGI_HAS_ZILOG
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647 select SWAP_IO_SPACE
Ralf Baechle7cf80532005-10-20 22:33:09 +0100648 select SYS_HAS_CPU_R4X00
649 select SYS_HAS_CPU_R5000
Thomas Bogendoerferc0de00b2019-10-09 15:27:17 +0200650 select SYS_HAS_EARLY_PRINTK
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -0700651 select SYS_SUPPORTS_32BIT_KERNEL
652 select SYS_SUPPORTS_64BIT_KERNEL
Ralf Baechle5e83d432005-10-29 19:32:41 +0100653 select SYS_SUPPORTS_BIG_ENDIAN
Florian Fainelli930beb52014-01-14 09:54:38 -0800654 select MIPS_L1_CACHE_SHIFT_7
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655 help
656 This are the SGI Indy, Challenge S and Indigo2, as well as certain
657 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
658 that runs on these, say Y here.
659
660config SGI_IP27
Martin Michlmayr3fa986f2006-05-09 23:34:53 +0200661 bool "SGI IP27 (Origin200/2000)"
Christoph Hellwig54aed4d2018-06-15 13:08:44 +0200662 select ARCH_HAS_PHYS_TO_DMA
Mike Rapoport397dc002019-09-16 14:13:10 +0300663 select ARCH_SPARSEMEM_ENABLE
Ralf Baechle0e2794b2012-11-15 20:48:50 +0100664 select FW_ARC
665 select FW_ARC64
Thomas Bogendoerfere9422422019-10-22 18:13:15 +0200666 select ARC_CMDLINE_ONLY
Ralf Baechle5e83d432005-10-29 19:32:41 +0100667 select BOOT_ELF64
Thomas Bogendoerfere2defae2007-12-02 13:00:32 +0100668 select DEFAULT_SGI_PARTITION
Ralf Baechle36a88532007-03-01 11:56:43 +0000669 select SYS_HAS_EARLY_PRINTK
Christoph Hellwigeb01d422018-11-15 20:05:32 +0100670 select HAVE_PCI
Thomas Bogendoerfer69a07a42019-02-19 16:57:20 +0100671 select IRQ_MIPS_CPU
Thomas Bogendoerfere6308b62019-05-07 23:09:15 +0200672 select IRQ_DOMAIN_HIERARCHY
Ralf Baechle130e2fb2007-02-06 16:53:15 +0000673 select NR_CPUS_DEFAULT_64
Thomas Bogendoerfera57140e2019-05-07 23:09:13 +0200674 select PCI_DRIVERS_GENERIC
675 select PCI_XTALK_BRIDGE
Ralf Baechle7cf80532005-10-20 22:33:09 +0100676 select SYS_HAS_CPU_R10000
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -0700677 select SYS_SUPPORTS_64BIT_KERNEL
Ralf Baechle5e83d432005-10-29 19:32:41 +0100678 select SYS_SUPPORTS_BIG_ENDIAN
Ralf Baechled8cb4e12006-06-11 23:03:08 +0100679 select SYS_SUPPORTS_NUMA
Ralf Baechle1a5c5de2006-11-02 17:23:33 +0000680 select SYS_SUPPORTS_SMP
Florian Fainelli930beb52014-01-14 09:54:38 -0800681 select MIPS_L1_CACHE_SHIFT_7
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682 help
683 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
684 workstations. To compile a Linux kernel that runs on these, say Y
685 here.
686
Thomas Bogendoerfere2defae2007-12-02 13:00:32 +0100687config SGI_IP28
Kees Cook7d607172013-01-16 18:53:19 -0800688 bool "SGI IP28 (Indigo2 R10k)"
Thomas Bogendoerferc0de00b2019-10-09 15:27:17 +0200689 select ARC_MEMORY
Thomas Bogendoerfer39b2d752019-10-09 15:27:14 +0200690 select ARC_PROMLIB
Ralf Baechle0e2794b2012-11-15 20:48:50 +0100691 select FW_ARC
692 select FW_ARC64
Ralf Baechle7a407aa2018-02-05 16:40:00 +0100693 select ARCH_MIGHT_HAVE_PC_SERIO
Thomas Bogendoerfere2defae2007-12-02 13:00:32 +0100694 select BOOT_ELF64
695 select CEVT_R4K
696 select CSRC_R4K
697 select DEFAULT_SGI_PARTITION
698 select DMA_NONCOHERENT
699 select GENERIC_ISA_DMA_SUPPORT_BROKEN
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200700 select IRQ_MIPS_CPU
Christoph Hellwig6630a8e2018-11-15 20:05:37 +0100701 select HAVE_EISA
Thomas Bogendoerfere2defae2007-12-02 13:00:32 +0100702 select I8253
703 select I8259
Thomas Bogendoerfere2defae2007-12-02 13:00:32 +0100704 select SGI_HAS_I8042
705 select SGI_HAS_INDYDOG
Thomas Bogendoerfer5b438c42008-07-10 20:29:55 +0200706 select SGI_HAS_HAL2
Thomas Bogendoerfere2defae2007-12-02 13:00:32 +0100707 select SGI_HAS_SEEQ
708 select SGI_HAS_WD93
709 select SGI_HAS_ZILOG
710 select SWAP_IO_SPACE
711 select SYS_HAS_CPU_R10000
Thomas Bogendoerferc0de00b2019-10-09 15:27:17 +0200712 select SYS_HAS_EARLY_PRINTK
Thomas Bogendoerfere2defae2007-12-02 13:00:32 +0100713 select SYS_SUPPORTS_64BIT_KERNEL
714 select SYS_SUPPORTS_BIG_ENDIAN
Thomas Bogendoerferdc24d682014-08-19 22:00:07 +0200715 select MIPS_L1_CACHE_SHIFT_7
Enrico Weigelt, metux IT consult371a4152019-03-11 16:54:27 +0100716 help
717 This is the SGI Indigo2 with R10000 processor. To compile a Linux
718 kernel that runs on these, say Y here.
Thomas Bogendoerfere2defae2007-12-02 13:00:32 +0100719
Thomas Bogendoerfer75055762019-10-24 12:18:29 +0200720config SGI_IP30
721 bool "SGI IP30 (Octane/Octane2)"
722 select ARCH_HAS_PHYS_TO_DMA
723 select FW_ARC
724 select FW_ARC64
725 select BOOT_ELF64
726 select CEVT_R4K
727 select CSRC_R4K
728 select SYNC_R4K if SMP
729 select ZONE_DMA32
730 select HAVE_PCI
731 select IRQ_MIPS_CPU
732 select IRQ_DOMAIN_HIERARCHY
733 select NR_CPUS_DEFAULT_2
734 select PCI_DRIVERS_GENERIC
735 select PCI_XTALK_BRIDGE
736 select SYS_HAS_EARLY_PRINTK
737 select SYS_HAS_CPU_R10000
738 select SYS_SUPPORTS_64BIT_KERNEL
739 select SYS_SUPPORTS_BIG_ENDIAN
740 select SYS_SUPPORTS_SMP
741 select MIPS_L1_CACHE_SHIFT_7
742 select ARC_MEMORY
743 help
744 These are the SGI Octane and Octane2 graphics workstations. To
745 compile a Linux kernel that runs on these, say Y here.
746
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747config SGI_IP32
Ralf Baechlecfd2afc2007-07-10 17:33:00 +0100748 bool "SGI IP32 (O2)"
Thomas Bogendoerfer39b2d752019-10-09 15:27:14 +0200749 select ARC_MEMORY
750 select ARC_PROMLIB
Christoph Hellwig03df8222018-06-15 13:08:48 +0200751 select ARCH_HAS_PHYS_TO_DMA
Ralf Baechle0e2794b2012-11-15 20:48:50 +0100752 select FW_ARC
753 select FW_ARC32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700754 select BOOT_ELF32
Ralf Baechle42f77542007-10-18 17:48:11 +0100755 select CEVT_R4K
Ralf Baechle940f6b42007-11-24 22:33:28 +0000756 select CSRC_R4K
Linus Torvalds1da177e2005-04-16 15:20:36 -0700757 select DMA_NONCOHERENT
Christoph Hellwigeb01d422018-11-15 20:05:32 +0100758 select HAVE_PCI
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200759 select IRQ_MIPS_CPU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760 select R5000_CPU_SCACHE
761 select RM7000_CPU_SCACHE
Ralf Baechle7cf80532005-10-20 22:33:09 +0100762 select SYS_HAS_CPU_R5000
763 select SYS_HAS_CPU_R10000 if BROKEN
764 select SYS_HAS_CPU_RM7000
Ralf Baechledd2f18f2006-01-19 14:55:42 +0000765 select SYS_HAS_CPU_NEVADA
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -0700766 select SYS_SUPPORTS_64BIT_KERNEL
Ralf Baechle5e83d432005-10-29 19:32:41 +0100767 select SYS_SUPPORTS_BIG_ENDIAN
Linus Torvalds1da177e2005-04-16 15:20:36 -0700768 help
769 If you want this kernel to run on SGI O2 workstation, say Y here.
770
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900771config SIBYTE_CRHINE
772 bool "Sibyte BCM91120C-CRhine"
Ralf Baechle5e83d432005-10-29 19:32:41 +0100773 select BOOT_ELF32
Ralf Baechle5e83d432005-10-29 19:32:41 +0100774 select SIBYTE_BCM1120
775 select SWAP_IO_SPACE
Ralf Baechle7cf80532005-10-20 22:33:09 +0100776 select SYS_HAS_CPU_SB1
Ralf Baechle5e83d432005-10-29 19:32:41 +0100777 select SYS_SUPPORTS_BIG_ENDIAN
778 select SYS_SUPPORTS_LITTLE_ENDIAN
779
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900780config SIBYTE_CARMEL
781 bool "Sibyte BCM91120x-Carmel"
Ralf Baechle5e83d432005-10-29 19:32:41 +0100782 select BOOT_ELF32
Ralf Baechle5e83d432005-10-29 19:32:41 +0100783 select SIBYTE_BCM1120
784 select SWAP_IO_SPACE
Ralf Baechle7cf80532005-10-20 22:33:09 +0100785 select SYS_HAS_CPU_SB1
Ralf Baechle5e83d432005-10-29 19:32:41 +0100786 select SYS_SUPPORTS_BIG_ENDIAN
787 select SYS_SUPPORTS_LITTLE_ENDIAN
788
789config SIBYTE_CRHONE
Martin Michlmayr3fa986f2006-05-09 23:34:53 +0200790 bool "Sibyte BCM91125C-CRhone"
Ralf Baechle5e83d432005-10-29 19:32:41 +0100791 select BOOT_ELF32
Ralf Baechle5e83d432005-10-29 19:32:41 +0100792 select SIBYTE_BCM1125
793 select SWAP_IO_SPACE
Ralf Baechle7cf80532005-10-20 22:33:09 +0100794 select SYS_HAS_CPU_SB1
Ralf Baechle5e83d432005-10-29 19:32:41 +0100795 select SYS_SUPPORTS_BIG_ENDIAN
796 select SYS_SUPPORTS_HIGHMEM
797 select SYS_SUPPORTS_LITTLE_ENDIAN
798
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900799config SIBYTE_RHONE
800 bool "Sibyte BCM91125E-Rhone"
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900801 select BOOT_ELF32
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900802 select SIBYTE_BCM1125H
803 select SWAP_IO_SPACE
804 select SYS_HAS_CPU_SB1
805 select SYS_SUPPORTS_BIG_ENDIAN
806 select SYS_SUPPORTS_LITTLE_ENDIAN
807
808config SIBYTE_SWARM
809 bool "Sibyte BCM91250A-SWARM"
810 select BOOT_ELF32
Sebastian Andrzej Siewiorfcf3ca42010-04-18 15:26:36 +0200811 select HAVE_PATA_PLATFORM
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900812 select SIBYTE_SB1250
813 select SWAP_IO_SPACE
814 select SYS_HAS_CPU_SB1
815 select SYS_SUPPORTS_BIG_ENDIAN
816 select SYS_SUPPORTS_HIGHMEM
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900817 select SYS_SUPPORTS_LITTLE_ENDIAN
Ralf Baechlecce335a2007-11-03 02:05:43 +0000818 select ZONE_DMA32 if 64BIT
Maciej W. Rozyckie4849af2018-11-13 22:42:44 +0000819 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900820
821config SIBYTE_LITTLESUR
822 bool "Sibyte BCM91250C2-LittleSur"
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900823 select BOOT_ELF32
Sebastian Andrzej Siewiorfcf3ca42010-04-18 15:26:36 +0200824 select HAVE_PATA_PLATFORM
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900825 select SIBYTE_SB1250
826 select SWAP_IO_SPACE
827 select SYS_HAS_CPU_SB1
828 select SYS_SUPPORTS_BIG_ENDIAN
829 select SYS_SUPPORTS_HIGHMEM
830 select SYS_SUPPORTS_LITTLE_ENDIAN
Maciej W. Rozycki756d6d82018-11-13 22:42:37 +0000831 select ZONE_DMA32 if 64BIT
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900832
833config SIBYTE_SENTOSA
834 bool "Sibyte BCM91250E-Sentosa"
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900835 select BOOT_ELF32
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900836 select SIBYTE_SB1250
837 select SWAP_IO_SPACE
838 select SYS_HAS_CPU_SB1
839 select SYS_SUPPORTS_BIG_ENDIAN
840 select SYS_SUPPORTS_LITTLE_ENDIAN
Maciej W. Rozyckie4849af2018-11-13 22:42:44 +0000841 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900842
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900843config SIBYTE_BIGSUR
844 bool "Sibyte BCM91480B-BigSur"
845 select BOOT_ELF32
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900846 select NR_CPUS_DEFAULT_4
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900847 select SIBYTE_BCM1x80
848 select SWAP_IO_SPACE
849 select SYS_HAS_CPU_SB1
850 select SYS_SUPPORTS_BIG_ENDIAN
Ralf Baechle651194f2007-11-01 21:55:39 +0000851 select SYS_SUPPORTS_HIGHMEM
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900852 select SYS_SUPPORTS_LITTLE_ENDIAN
Ralf Baechlecce335a2007-11-03 02:05:43 +0000853 select ZONE_DMA32 if 64BIT
Maciej W. Rozyckie4849af2018-11-13 22:42:44 +0000854 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
Yoichi Yuasaade299d2007-07-27 15:25:43 +0900855
Thomas Bogendoerfer14b36af2006-12-05 17:05:44 +0100856config SNI_RM
857 bool "SNI RM200/300/400"
Thomas Bogendoerfer39b2d752019-10-09 15:27:14 +0200858 select ARC_MEMORY
859 select ARC_PROMLIB
Ralf Baechle0e2794b2012-11-15 20:48:50 +0100860 select FW_ARC if CPU_LITTLE_ENDIAN
861 select FW_ARC32 if CPU_LITTLE_ENDIAN
Paul Bolleaaa9fad2013-03-25 09:39:54 +0000862 select FW_SNIPROM if CPU_BIG_ENDIAN
Ralf Baechle5e83d432005-10-29 19:32:41 +0100863 select ARCH_MAY_HAVE_PC_FDC
Ralf Baechlea211a0822018-02-05 15:37:43 +0100864 select ARCH_MIGHT_HAVE_PC_PARPORT
Ralf Baechle7a407aa2018-02-05 16:40:00 +0100865 select ARCH_MIGHT_HAVE_PC_SERIO
Ralf Baechle5e83d432005-10-29 19:32:41 +0100866 select BOOT_ELF32
Ralf Baechle42f77542007-10-18 17:48:11 +0100867 select CEVT_R4K
Ralf Baechle940f6b42007-11-24 22:33:28 +0000868 select CSRC_R4K
Thomas Bogendoerfere2defae2007-12-02 13:00:32 +0100869 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
Ralf Baechle5e83d432005-10-29 19:32:41 +0100870 select DMA_NONCOHERENT
871 select GENERIC_ISA_DMA
Christoph Hellwig6630a8e2018-11-15 20:05:37 +0100872 select HAVE_EISA
Ralf Baechle8a118c32011-06-01 19:05:10 +0100873 select HAVE_PCSPKR_PLATFORM
Christoph Hellwigeb01d422018-11-15 20:05:32 +0100874 select HAVE_PCI
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200875 select IRQ_MIPS_CPU
Ralf Baechled865bea2007-10-11 23:46:10 +0100876 select I8253
Ralf Baechle5e83d432005-10-29 19:32:41 +0100877 select I8259
878 select ISA
Thomas Bogendoerfer4a0312f2006-06-13 13:59:01 +0200879 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
Ralf Baechle7cf80532005-10-20 22:33:09 +0100880 select SYS_HAS_CPU_R4X00
Thomas Bogendoerfer4a0312f2006-06-13 13:59:01 +0200881 select SYS_HAS_CPU_R5000
Thomas Bogendoerferc066a322006-12-28 18:22:32 +0100882 select SYS_HAS_CPU_R10000
Thomas Bogendoerfer4a0312f2006-06-13 13:59:01 +0200883 select R5000_CPU_SCACHE
Ralf Baechle36a88532007-03-01 11:56:43 +0000884 select SYS_HAS_EARLY_PRINTK
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -0700885 select SYS_SUPPORTS_32BIT_KERNEL
Kees Cook7d607172013-01-16 18:53:19 -0800886 select SYS_SUPPORTS_64BIT_KERNEL
Thomas Bogendoerfer4a0312f2006-06-13 13:59:01 +0200887 select SYS_SUPPORTS_BIG_ENDIAN
Ralf Baechle5e83d432005-10-29 19:32:41 +0100888 select SYS_SUPPORTS_HIGHMEM
889 select SYS_SUPPORTS_LITTLE_ENDIAN
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890 help
Thomas Bogendoerfer14b36af2006-12-05 17:05:44 +0100891 The SNI RM200/300/400 are MIPS-based machines manufactured by
892 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
Ralf Baechle5e83d432005-10-29 19:32:41 +0100893 Technology and now in turn merged with Fujitsu. Say Y here to
894 support this machine type.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700895
Atsushi Nemotoedcaf1a2008-07-11 23:27:54 +0900896config MACH_TX39XX
897 bool "Toshiba TX39 series based machines"
Ralf Baechle5e83d432005-10-29 19:32:41 +0100898
Atsushi Nemotoedcaf1a2008-07-11 23:27:54 +0900899config MACH_TX49XX
900 bool "Toshiba TX49 series based machines"
Ralf Baechle23fbee92005-07-25 22:45:45 +0000901
Ralf Baechle73b43902008-07-16 16:12:25 +0100902config MIKROTIK_RB532
903 bool "Mikrotik RB532 boards"
904 select CEVT_R4K
905 select CSRC_R4K
906 select DMA_NONCOHERENT
Christoph Hellwigeb01d422018-11-15 20:05:32 +0100907 select HAVE_PCI
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200908 select IRQ_MIPS_CPU
Ralf Baechle73b43902008-07-16 16:12:25 +0100909 select SYS_HAS_CPU_MIPS32_R1
910 select SYS_SUPPORTS_32BIT_KERNEL
911 select SYS_SUPPORTS_LITTLE_ENDIAN
912 select SWAP_IO_SPACE
913 select BOOT_RAW
Linus Walleijd30a2b42016-04-19 11:23:22 +0200914 select GPIOLIB
Florian Fainelli930beb52014-01-14 09:54:38 -0800915 select MIPS_L1_CACHE_SHIFT_4
Ralf Baechle73b43902008-07-16 16:12:25 +0100916 help
917 Support the Mikrotik(tm) RouterBoard 532 series,
918 based on the IDT RC32434 SoC.
919
David Daney9ddebc42013-05-22 15:10:46 +0000920config CAVIUM_OCTEON_SOC
921 bool "Cavium Networks Octeon SoC based boards"
David Daneya86c7f72008-12-11 15:33:38 -0800922 select CEVT_R4K
Christoph Hellwigea8c64a2018-01-10 16:21:13 +0100923 select ARCH_HAS_PHYS_TO_DMA
Christoph Hellwig1753d502018-11-15 20:05:36 +0100924 select HAVE_RAPIDIO
Christoph Hellwigd4a451d2018-04-03 16:24:20 +0200925 select PHYS_ADDR_T_64BIT
David Daneya86c7f72008-12-11 15:33:38 -0800926 select SYS_SUPPORTS_64BIT_KERNEL
927 select SYS_SUPPORTS_BIG_ENDIAN
Ralf Baechlef65aad42012-10-17 00:39:09 +0200928 select EDAC_SUPPORT
Borislav Petkovb01aec92015-05-21 19:59:31 +0200929 select EDAC_ATOMIC_SCRUB
David Daney73569d82015-03-20 19:11:58 +0300930 select SYS_SUPPORTS_LITTLE_ENDIAN
931 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
David Daneya86c7f72008-12-11 15:33:38 -0800932 select SYS_HAS_EARLY_PRINTK
David Daney5e683382009-02-02 11:30:59 -0800933 select SYS_HAS_CPU_CAVIUM_OCTEON
Christoph Hellwigeb01d422018-11-15 20:05:32 +0100934 select HAVE_PCI
Masahiro Yamada78bdbba2020-03-25 16:45:29 +0900935 select HAVE_PLAT_DELAY
936 select HAVE_PLAT_FW_INIT_CMDLINE
937 select HAVE_PLAT_MEMCPY
David Daneyf00e0012010-10-01 13:27:30 -0700938 select ZONE_DMA32
David Daney465aaed2011-08-20 08:44:00 -0700939 select HOLES_IN_ZONE
Linus Walleijd30a2b42016-04-19 11:23:22 +0200940 select GPIOLIB
David Daney6e511162014-05-28 23:52:05 +0200941 select USE_OF
942 select ARCH_SPARSEMEM_ENABLE
943 select SYS_SUPPORTS_SMP
David Daney7820b842017-09-28 12:34:04 -0500944 select NR_CPUS_DEFAULT_64
945 select MIPS_NR_CPU_NR_MAP_1024
Andrew Brestickere3264792014-08-21 13:04:22 -0700946 select BUILTIN_DTB
David Daney8c1e6b12015-03-05 17:31:30 +0300947 select MTD_COMPLEX_MAPPINGS
Christoph Hellwig09230cb2018-04-24 09:00:54 +0200948 select SWIOTLB
Steven J. Hill3ff72be2016-12-13 14:25:37 -0600949 select SYS_SUPPORTS_RELOCATABLE
David Daneya86c7f72008-12-11 15:33:38 -0800950 help
951 This option supports all of the Octeon reference boards from Cavium
952 Networks. It builds a kernel that dynamically determines the Octeon
953 CPU type and supports all known board reference implementations.
954 Some of the supported boards are:
955 EBT3000
956 EBH3000
957 EBH3100
958 Thunder
959 Kodama
960 Hikari
961 Say Y here for most Octeon reference boards.
962
Jayachandran C7f058e82011-05-07 01:36:57 +0530963config NLM_XLR_BOARD
964 bool "Netlogic XLR/XLS based systems"
Jayachandran C7f058e82011-05-07 01:36:57 +0530965 select BOOT_ELF32
966 select NLM_COMMON
Jayachandran C7f058e82011-05-07 01:36:57 +0530967 select SYS_HAS_CPU_XLR
968 select SYS_SUPPORTS_SMP
Christoph Hellwigeb01d422018-11-15 20:05:32 +0100969 select HAVE_PCI
Jayachandran C7f058e82011-05-07 01:36:57 +0530970 select SWAP_IO_SPACE
971 select SYS_SUPPORTS_32BIT_KERNEL
972 select SYS_SUPPORTS_64BIT_KERNEL
Christoph Hellwigd4a451d2018-04-03 16:24:20 +0200973 select PHYS_ADDR_T_64BIT
Jayachandran C7f058e82011-05-07 01:36:57 +0530974 select SYS_SUPPORTS_BIG_ENDIAN
975 select SYS_SUPPORTS_HIGHMEM
Jayachandran C7f058e82011-05-07 01:36:57 +0530976 select NR_CPUS_DEFAULT_32
977 select CEVT_R4K
978 select CSRC_R4K
Ralf Baechle67e38cf2015-05-26 18:20:06 +0200979 select IRQ_MIPS_CPU
Jayachandran Cb97215f2012-10-31 12:01:33 +0000980 select ZONE_DMA32 if 64BIT
Jayachandran C7f058e82011-05-07 01:36:57 +0530981 select SYNC_R4K
982 select SYS_HAS_EARLY_PRINTK
Jayachandran C8f0b0432013-06-10 06:33:26 +0000983 select SYS_SUPPORTS_ZBOOT
984 select SYS_SUPPORTS_ZBOOT_UART16550
Jayachandran C7f058e82011-05-07 01:36:57 +0530985 help
986 Support for systems based on Netlogic XLR and XLS processors.
987 Say Y here if you have a XLR or XLS based board.
988
Jayachandran C1c773ea2011-11-16 00:21:28 +0000989config NLM_XLP_BOARD
990 bool "Netlogic XLP based systems"
Jayachandran C1c773ea2011-11-16 00:21:28 +0000991 select BOOT_ELF32
992 select NLM_COMMON
993 select SYS_HAS_CPU_XLP
994 select SYS_SUPPORTS_SMP
Christoph Hellwigeb01d422018-11-15 20:05:32 +0100995 select HAVE_PCI
Jayachandran C1c773ea2011-11-16 00:21:28 +0000996 select SYS_SUPPORTS_32BIT_KERNEL
997 select SYS_SUPPORTS_64BIT_KERNEL
Christoph Hellwigd4a451d2018-04-03 16:24:20 +0200998 select PHYS_ADDR_T_64BIT
Linus Walleijd30a2b42016-04-19 11:23:22 +0200999 select GPIOLIB
Jayachandran C1c773ea2011-11-16 00:21:28 +00001000 select SYS_SUPPORTS_BIG_ENDIAN
1001 select SYS_SUPPORTS_LITTLE_ENDIAN
1002 select SYS_SUPPORTS_HIGHMEM
Jayachandran C1c773ea2011-11-16 00:21:28 +00001003 select NR_CPUS_DEFAULT_32
1004 select CEVT_R4K
1005 select CSRC_R4K
Ralf Baechle67e38cf2015-05-26 18:20:06 +02001006 select IRQ_MIPS_CPU
Jayachandran Cb97215f2012-10-31 12:01:33 +00001007 select ZONE_DMA32 if 64BIT
Jayachandran C1c773ea2011-11-16 00:21:28 +00001008 select SYNC_R4K
1009 select SYS_HAS_EARLY_PRINTK
Jayachandran C2f6528e2012-07-13 21:53:22 +05301010 select USE_OF
Jayachandran C8f0b0432013-06-10 06:33:26 +00001011 select SYS_SUPPORTS_ZBOOT
1012 select SYS_SUPPORTS_ZBOOT_UART16550
Jayachandran C1c773ea2011-11-16 00:21:28 +00001013 help
1014 This board is based on Netlogic XLP Processor.
1015 Say Y here if you have a XLP based board.
1016
David Daney9bc463b2014-05-28 23:52:15 +02001017config MIPS_PARAVIRT
1018 bool "Para-Virtualized guest system"
1019 select CEVT_R4K
1020 select CSRC_R4K
David Daney9bc463b2014-05-28 23:52:15 +02001021 select SYS_SUPPORTS_64BIT_KERNEL
1022 select SYS_SUPPORTS_32BIT_KERNEL
1023 select SYS_SUPPORTS_BIG_ENDIAN
1024 select SYS_SUPPORTS_SMP
1025 select NR_CPUS_DEFAULT_4
1026 select SYS_HAS_EARLY_PRINTK
1027 select SYS_HAS_CPU_MIPS32_R2
1028 select SYS_HAS_CPU_MIPS64_R2
1029 select SYS_HAS_CPU_CAVIUM_OCTEON
Christoph Hellwigeb01d422018-11-15 20:05:32 +01001030 select HAVE_PCI
David Daney9bc463b2014-05-28 23:52:15 +02001031 select SWAP_IO_SPACE
1032 help
1033 This option supports guest running under ????
1034
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035endchoice
1036
Ralf Baechlee8c7c482008-09-16 19:12:16 +02001037source "arch/mips/alchemy/Kconfig"
Sergey Ryazanov3b12308f2014-10-29 03:18:39 +04001038source "arch/mips/ath25/Kconfig"
Gabor Juhosd4a67d92011-01-04 21:28:14 +01001039source "arch/mips/ath79/Kconfig"
Hauke Mehrtensa656ffc2011-07-23 01:20:13 +02001040source "arch/mips/bcm47xx/Kconfig"
Maxime Bizone7300d02009-08-18 13:23:37 +01001041source "arch/mips/bcm63xx/Kconfig"
Kevin Cernekee8945e372014-12-25 09:49:20 -08001042source "arch/mips/bmips/Kconfig"
Paul Burtoneed0eab2016-10-05 18:18:20 +01001043source "arch/mips/generic/Kconfig"
Ralf Baechle5e83d432005-10-29 19:32:41 +01001044source "arch/mips/jazz/Kconfig"
Lars-Peter Clausen5ebabe52010-06-19 04:08:19 +00001045source "arch/mips/jz4740/Kconfig"
John Crispin8ec6d932011-03-30 09:27:48 +02001046source "arch/mips/lantiq/Kconfig"
Joshua Henderson2572f002016-01-13 18:15:39 -07001047source "arch/mips/pic32/Kconfig"
Ezequiel Garciaaf0cfb22015-08-06 12:22:43 +01001048source "arch/mips/pistachio/Kconfig"
John Crispinae2b5bb2013-01-20 22:05:30 +01001049source "arch/mips/ralink/Kconfig"
Ralf Baechle29c48692005-02-07 01:27:14 +00001050source "arch/mips/sgi-ip27/Kconfig"
Ralf Baechle38b18f722005-02-03 14:28:23 +00001051source "arch/mips/sibyte/Kconfig"
Atsushi Nemoto22b1d702008-07-11 00:31:36 +09001052source "arch/mips/txx9/Kconfig"
Ralf Baechle5e83d432005-10-29 19:32:41 +01001053source "arch/mips/vr41xx/Kconfig"
David Daneya86c7f72008-12-11 15:33:38 -08001054source "arch/mips/cavium-octeon/Kconfig"
Jiaxun Yang71e2f4d2019-10-20 22:43:14 +08001055source "arch/mips/loongson2ef/Kconfig"
Huacai Chen30ad29b2015-04-21 10:00:35 +08001056source "arch/mips/loongson32/Kconfig"
1057source "arch/mips/loongson64/Kconfig"
Jayachandran C7f058e82011-05-07 01:36:57 +05301058source "arch/mips/netlogic/Kconfig"
David Daneyae6e7e62014-05-28 23:52:14 +02001059source "arch/mips/paravirt/Kconfig"
Ralf Baechle38b18f722005-02-03 14:28:23 +00001060
Ralf Baechle5e83d432005-10-29 19:32:41 +01001061endmenu
1062
Akinobu Mita3c9ee7e2006-03-26 01:39:30 -08001063config GENERIC_HWEIGHT
1064 bool
1065 default y
1066
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067config GENERIC_CALIBRATE_DELAY
1068 bool
1069 default y
1070
Ingo Molnarae1e9132008-11-11 09:05:16 +01001071config SCHED_OMIT_FRAME_POINTER
Atsushi Nemoto1cc89032006-04-04 13:11:45 +09001072 bool
1073 default y
1074
Linus Torvalds1da177e2005-04-16 15:20:36 -07001075#
1076# Select some configuration options automatically based on user selections.
1077#
Ralf Baechle0e2794b2012-11-15 20:48:50 +01001078config FW_ARC
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080
Ralf Baechle61ed2422005-09-15 08:52:34 +00001081config ARCH_MAY_HAVE_PC_FDC
1082 bool
1083
Marc St-Jean9267a302007-06-14 15:55:31 -06001084config BOOT_RAW
1085 bool
1086
Ralf Baechle217dd112007-11-01 01:57:55 +00001087config CEVT_BCM1480
1088 bool
1089
Yoichi Yuasa6457d9f2008-04-25 12:11:44 +09001090config CEVT_DS1287
1091 bool
1092
Yoichi Yuasa1097c6a2007-10-22 19:43:15 +09001093config CEVT_GT641XX
1094 bool
1095
Ralf Baechle42f77542007-10-18 17:48:11 +01001096config CEVT_R4K
1097 bool
1098
Ralf Baechle217dd112007-11-01 01:57:55 +00001099config CEVT_SB1250
1100 bool
1101
Atsushi Nemoto229f7732007-10-25 01:34:09 +09001102config CEVT_TXX9
1103 bool
1104
Ralf Baechle217dd112007-11-01 01:57:55 +00001105config CSRC_BCM1480
1106 bool
1107
Yoichi Yuasa42474172008-04-24 09:48:40 +09001108config CSRC_IOASIC
1109 bool
1110
Ralf Baechle940f6b42007-11-24 22:33:28 +00001111config CSRC_R4K
Serge Semin38586422020-05-21 17:07:23 +03001112 select CLOCKSOURCE_WATCHDOG if CPU_FREQ
Ralf Baechle940f6b42007-11-24 22:33:28 +00001113 bool
1114
Ralf Baechle217dd112007-11-01 01:57:55 +00001115config CSRC_SB1250
1116 bool
1117
Alex Smitha7f4df42015-10-21 09:57:44 +01001118config MIPS_CLOCK_VSYSCALL
1119 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1120
Atsushi Nemotoa9aec7f2008-04-05 00:55:41 +09001121config GPIO_TXX9
Linus Walleijd30a2b42016-04-19 11:23:22 +02001122 select GPIOLIB
Atsushi Nemotoa9aec7f2008-04-05 00:55:41 +09001123 bool
1124
Ralf Baechle0e2794b2012-11-15 20:48:50 +01001125config FW_CFE
Aurelien Jarnodf78b5c2007-09-05 08:58:26 +02001126 bool
1127
Ralf Baechle40e084a2015-07-29 22:44:53 +02001128config ARCH_SUPPORTS_UPROBES
1129 bool
1130
Felix Fietkau885014b2013-09-27 14:41:44 +02001131config DMA_MAYBE_COHERENT
Christoph Hellwigf3ecc0f2018-08-19 14:53:20 +02001132 select ARCH_HAS_DMA_COHERENCE_H
Felix Fietkau885014b2013-09-27 14:41:44 +02001133 select DMA_NONCOHERENT
1134 bool
1135
Paul Burton20d33062016-10-05 18:18:16 +01001136config DMA_PERDEV_COHERENT
1137 bool
Christoph Hellwig347cb6a2019-01-07 13:36:20 -05001138 select ARCH_HAS_SETUP_DMA_OPS
Christoph Hellwig5748e1b2018-08-16 16:47:53 +03001139 select DMA_NONCOHERENT
Paul Burton20d33062016-10-05 18:18:16 +01001140
Ralf Baechle4ce588c2005-09-03 15:56:19 -07001141config DMA_NONCOHERENT
1142 bool
Christoph Hellwigdb914272019-08-26 09:22:13 +02001143 #
1144 # MIPS allows mixing "slightly different" Cacheability and Coherency
1145 # Attribute bits. It is believed that the uncached access through
1146 # KSEG1 and the implementation specific "uncached accelerated" used
1147 # by pgprot_writcombine can be mixed, and the latter sometimes provides
1148 # significant advantages.
1149 #
Christoph Hellwig419e2f12019-08-26 09:03:44 +02001150 select ARCH_HAS_DMA_WRITE_COMBINE
Christoph Hellwigfa7e2242020-02-21 15:55:43 -08001151 select ARCH_HAS_DMA_PREP_COHERENT
Christoph Hellwigf8c55dc2018-06-15 13:08:46 +02001152 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
Christoph Hellwigfa7e2242020-02-21 15:55:43 -08001153 select ARCH_HAS_DMA_SET_UNCACHED
Christoph Hellwig34dc0ea2019-10-29 11:01:37 +01001154 select DMA_NONCOHERENT_MMAP
Christoph Hellwigf8c55dc2018-06-15 13:08:46 +02001155 select DMA_NONCOHERENT_CACHE_SYNC
Christoph Hellwig34dc0ea2019-10-29 11:01:37 +01001156 select NEED_DMA_MAP_STATE
Ralf Baechle4ce588c2005-09-03 15:56:19 -07001157
Ralf Baechle36a88532007-03-01 11:56:43 +00001158config SYS_HAS_EARLY_PRINTK
Linus Torvalds1da177e2005-04-16 15:20:36 -07001159 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001160
Ralf Baechle1b2bc752009-06-23 10:00:31 +01001161config SYS_SUPPORTS_HOTPLUG_CPU
Ralf Baechledbb74542007-08-07 14:52:17 +01001162 bool
Ralf Baechledbb74542007-08-07 14:52:17 +01001163
Linus Torvalds1da177e2005-04-16 15:20:36 -07001164config MIPS_BONITO64
1165 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001166
1167config MIPS_MSC
1168 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001169
Ralf Baechle39b8d522008-04-28 17:14:26 +01001170config SYNC_R4K
1171 bool
1172
Gabor Juhos487d70d2010-11-23 16:06:25 +01001173config MIPS_MACHINE
1174 def_bool n
1175
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -07001176config NO_IOPORT_MAP
Maciej W. Rozyckid388d682007-05-29 15:08:07 +01001177 def_bool n
1178
Markos Chandras4e0748f2014-11-13 11:25:27 +00001179config GENERIC_CSUM
Alexander Lobakin18d84e2e2020-01-22 13:58:50 +03001180 def_bool CPU_NO_LOAD_STORE_LR
Markos Chandras4e0748f2014-11-13 11:25:27 +00001181
Ralf Baechle8313da32007-08-24 16:48:30 +01001182config GENERIC_ISA_DMA
1183 bool
1184 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
Namhyung Kima35bee82010-10-18 12:55:21 +09001185 select ISA_DMA_API
Ralf Baechle8313da32007-08-24 16:48:30 +01001186
Ralf Baechleaa414df2006-11-30 01:14:51 +00001187config GENERIC_ISA_DMA_SUPPORT_BROKEN
1188 bool
Ralf Baechle8313da32007-08-24 16:48:30 +01001189 select GENERIC_ISA_DMA
Ralf Baechleaa414df2006-11-30 01:14:51 +00001190
Masahiro Yamada78bdbba2020-03-25 16:45:29 +09001191config HAVE_PLAT_DELAY
1192 bool
1193
1194config HAVE_PLAT_FW_INIT_CMDLINE
1195 bool
1196
1197config HAVE_PLAT_MEMCPY
1198 bool
1199
Namhyung Kima35bee82010-10-18 12:55:21 +09001200config ISA_DMA_API
1201 bool
1202
David Daney465aaed2011-08-20 08:44:00 -07001203config HOLES_IN_ZONE
1204 bool
1205
Matt Redfearn8c530ea2016-03-31 10:05:39 +01001206config SYS_SUPPORTS_RELOCATABLE
1207 bool
1208 help
Enrico Weigelt, metux IT consult371a4152019-03-11 16:54:27 +01001209 Selected if the platform supports relocating the kernel.
1210 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1211 to allow access to command line and entropy sources.
Matt Redfearn8c530ea2016-03-31 10:05:39 +01001212
David Daneyf381bf62017-06-13 15:28:46 -07001213config MIPS_CBPF_JIT
1214 def_bool y
1215 depends on BPF_JIT && HAVE_CBPF_JIT
1216
1217config MIPS_EBPF_JIT
1218 def_bool y
1219 depends on BPF_JIT && HAVE_EBPF_JIT
1220
1221
Ralf Baechle5e83d432005-10-29 19:32:41 +01001222#
Masanari Iida6b2aac42012-04-14 00:14:11 +09001223# Endianness selection. Sufficiently obscure so many users don't know what to
Ralf Baechle5e83d432005-10-29 19:32:41 +01001224# answer,so we try hard to limit the available choices. Also the use of a
1225# choice statement should be more obvious to the user.
1226#
1227choice
Masanari Iida6b2aac42012-04-14 00:14:11 +09001228 prompt "Endianness selection"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001229 help
1230 Some MIPS machines can be configured for either little or big endian
Ralf Baechle5e83d432005-10-29 19:32:41 +01001231 byte order. These modes require different kernels and a different
Matt LaPlante3cb2fcc2006-11-30 05:22:59 +01001232 Linux distribution. In general there is one preferred byteorder for a
Ralf Baechle5e83d432005-10-29 19:32:41 +01001233 particular system but some systems are just as commonly used in the
David Sterba3dde6ad2007-05-09 07:12:20 +02001234 one or the other endianness.
Ralf Baechle5e83d432005-10-29 19:32:41 +01001235
1236config CPU_BIG_ENDIAN
1237 bool "Big endian"
1238 depends on SYS_SUPPORTS_BIG_ENDIAN
1239
1240config CPU_LITTLE_ENDIAN
1241 bool "Little endian"
1242 depends on SYS_SUPPORTS_LITTLE_ENDIAN
Ralf Baechle5e83d432005-10-29 19:32:41 +01001243
1244endchoice
1245
David Daney22b07632010-07-23 18:41:43 -07001246config EXPORT_UASM
1247 bool
1248
Ralf Baechle21162452007-02-09 17:08:58 +00001249config SYS_SUPPORTS_APM_EMULATION
1250 bool
1251
Ralf Baechle5e83d432005-10-29 19:32:41 +01001252config SYS_SUPPORTS_BIG_ENDIAN
1253 bool
1254
1255config SYS_SUPPORTS_LITTLE_ENDIAN
1256 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001257
David Daney9cffd1542009-05-27 17:47:46 -07001258config SYS_SUPPORTS_HUGETLBFS
1259 bool
Daniel Silsby45e03e62019-07-15 17:40:01 -04001260 depends on CPU_SUPPORTS_HUGEPAGES
David Daney9cffd1542009-05-27 17:47:46 -07001261 default y
1262
David Daneyaa1762f2012-10-17 00:48:10 +02001263config MIPS_HUGE_TLB_SUPPORT
1264 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1265
Linus Torvalds1da177e2005-04-16 15:20:36 -07001266config IRQ_CPU_RM7K
1267 bool
1268
Marc St-Jean9267a302007-06-14 15:55:31 -06001269config IRQ_MSP_SLP
1270 bool
1271
1272config IRQ_MSP_CIC
1273 bool
1274
Atsushi Nemoto8420fd02007-08-02 23:35:53 +09001275config IRQ_TXX9
1276 bool
1277
Yoichi Yuasad5ab1a62007-09-13 23:51:26 +09001278config IRQ_GT641XX
1279 bool
1280
Yoichi Yuasa252161e2007-03-14 21:51:26 +09001281config PCI_GT64XXX_PCI0
Linus Torvalds1da177e2005-04-16 15:20:36 -07001282 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001283
Thomas Bogendoerfera57140e2019-05-07 23:09:13 +02001284config PCI_XTALK_BRIDGE
1285 bool
1286
Marc St-Jean9267a302007-06-14 15:55:31 -06001287config NO_EXCEPT_FILL
1288 bool
1289
Daniel Lairdedb63102008-06-16 15:49:21 +01001290config SOC_PNX833X
1291 bool
1292 select CEVT_R4K
1293 select CSRC_R4K
Ralf Baechle67e38cf2015-05-26 18:20:06 +02001294 select IRQ_MIPS_CPU
Daniel Lairdedb63102008-06-16 15:49:21 +01001295 select DMA_NONCOHERENT
1296 select SYS_HAS_CPU_MIPS32_R2
1297 select SYS_SUPPORTS_32BIT_KERNEL
1298 select SYS_SUPPORTS_LITTLE_ENDIAN
1299 select SYS_SUPPORTS_BIG_ENDIAN
Ralf Baechle377cb1b2014-04-29 01:49:24 +02001300 select SYS_SUPPORTS_MIPS16
Daniel Lairdedb63102008-06-16 15:49:21 +01001301 select CPU_MIPSR2_IRQ_VI
1302
1303config SOC_PNX8335
1304 bool
1305 select SOC_PNX833X
1306
Markos Chandrasa7e07b12014-11-13 13:32:03 +00001307config MIPS_SPRAM
1308 bool
1309
Linus Torvalds1da177e2005-04-16 15:20:36 -07001310config SWAP_IO_SPACE
1311 bool
1312
Thomas Bogendoerfere2defae2007-12-02 13:00:32 +01001313config SGI_HAS_INDYDOG
1314 bool
1315
Thomas Bogendoerfer5b438c42008-07-10 20:29:55 +02001316config SGI_HAS_HAL2
1317 bool
1318
Thomas Bogendoerfere2defae2007-12-02 13:00:32 +01001319config SGI_HAS_SEEQ
1320 bool
1321
1322config SGI_HAS_WD93
1323 bool
1324
1325config SGI_HAS_ZILOG
1326 bool
1327
1328config SGI_HAS_I8042
1329 bool
1330
1331config DEFAULT_SGI_PARTITION
1332 bool
1333
Ralf Baechle0e2794b2012-11-15 20:48:50 +01001334config FW_ARC32
Ralf Baechle5e83d432005-10-29 19:32:41 +01001335 bool
1336
Paul Bolleaaa9fad2013-03-25 09:39:54 +00001337config FW_SNIPROM
Thomas Bogendoerfer231a35d2008-01-04 23:31:07 +01001338 bool
1339
Linus Torvalds1da177e2005-04-16 15:20:36 -07001340config BOOT_ELF32
1341 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001342
Florian Fainelli930beb52014-01-14 09:54:38 -08001343config MIPS_L1_CACHE_SHIFT_4
1344 bool
1345
1346config MIPS_L1_CACHE_SHIFT_5
1347 bool
1348
1349config MIPS_L1_CACHE_SHIFT_6
1350 bool
1351
1352config MIPS_L1_CACHE_SHIFT_7
1353 bool
1354
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355config MIPS_L1_CACHE_SHIFT
1356 int
Florian Fainellia4c02012014-01-14 09:54:39 -08001357 default "7" if MIPS_L1_CACHE_SHIFT_7
Kevin Cernekee5432eeb2014-12-25 09:49:09 -08001358 default "6" if MIPS_L1_CACHE_SHIFT_6
1359 default "5" if MIPS_L1_CACHE_SHIFT_5
1360 default "4" if MIPS_L1_CACHE_SHIFT_4
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361 default "5"
1362
Thomas Bogendoerfere9422422019-10-22 18:13:15 +02001363config ARC_CMDLINE_ONLY
1364 bool
1365
Linus Torvalds1da177e2005-04-16 15:20:36 -07001366config ARC_CONSOLE
1367 bool "ARC console support"
Thomas Bogendoerfere2defae2007-12-02 13:00:32 +01001368 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001369
1370config ARC_MEMORY
1371 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001372
1373config ARC_PROMLIB
1374 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001375
Ralf Baechle0e2794b2012-11-15 20:48:50 +01001376config FW_ARC64
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378
1379config BOOT_ELF64
1380 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382menu "CPU selection"
1383
1384choice
1385 prompt "CPU type"
1386 default CPU_R4X00
1387
Jiaxun Yang268a2d62019-10-20 22:43:13 +08001388config CPU_LOONGSON64
Huacai Chencaed1d12019-11-04 14:11:21 +08001389 bool "Loongson 64-bit CPU"
Jiaxun Yang268a2d62019-10-20 22:43:13 +08001390 depends on SYS_HAS_CPU_LOONGSON64
Christoph Hellwigd3bc81b2018-06-15 13:08:41 +02001391 select ARCH_HAS_PHYS_TO_DMA
Jiaxun Yang51522212020-01-13 18:15:00 +08001392 select CPU_MIPSR2
1393 select CPU_HAS_PREFETCH
Huacai Chen0e476d92014-03-21 18:44:07 +08001394 select CPU_SUPPORTS_64BIT_KERNEL
1395 select CPU_SUPPORTS_HIGHMEM
1396 select CPU_SUPPORTS_HUGEPAGES
Huacai Chen75074452019-09-21 21:50:27 +08001397 select CPU_SUPPORTS_MSA
Jiaxun Yang51522212020-01-13 18:15:00 +08001398 select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1399 select CPU_MIPSR2_IRQ_VI
Huacai Chen0e476d92014-03-21 18:44:07 +08001400 select WEAK_ORDERING
1401 select WEAK_REORDERING_BEYOND_LLSC
Huacai Chen75074452019-09-21 21:50:27 +08001402 select MIPS_ASID_BITS_VARIABLE
Huacai Chenb2edcfc2016-03-03 09:45:09 +08001403 select MIPS_PGD_C0_CONTEXT
Huacai Chen17c99d92017-03-16 21:00:28 +08001404 select MIPS_L1_CACHE_SHIFT_6
Linus Walleijd30a2b42016-04-19 11:23:22 +02001405 select GPIOLIB
Christoph Hellwig09230cb2018-04-24 09:00:54 +02001406 select SWIOTLB
Huacai Chen0e476d92014-03-21 18:44:07 +08001407 help
Huacai Chencaed1d12019-11-04 14:11:21 +08001408 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1409 cores implements the MIPS64R2 instruction set with many extensions,
1410 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1411 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1412 Loongson-2E/2F is not covered here and will be removed in future.
Huacai Chen0e476d92014-03-21 18:44:07 +08001413
Huacai Chencaed1d12019-11-04 14:11:21 +08001414config LOONGSON3_ENHANCEMENT
1415 bool "New Loongson-3 CPU Enhancements"
Huacai Chen1e820da32016-03-03 09:45:13 +08001416 default n
Jiaxun Yang268a2d62019-10-20 22:43:13 +08001417 depends on CPU_LOONGSON64
Huacai Chen1e820da32016-03-03 09:45:13 +08001418 help
Huacai Chencaed1d12019-11-04 14:11:21 +08001419 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
Huacai Chen1e820da32016-03-03 09:45:13 +08001420 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
Jiaxun Yang268a2d62019-10-20 22:43:13 +08001421 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
Huacai Chen1e820da32016-03-03 09:45:13 +08001422 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1423 Fast TLB refill support, etc.
1424
1425 This option enable those enhancements which are not probed at run
1426 time. If you want a generic kernel to run on all Loongson 3 machines,
1427 please say 'N' here. If you want a high-performance kernel to run on
Huacai Chencaed1d12019-11-04 14:11:21 +08001428 new Loongson-3 machines only, please say 'Y' here.
Huacai Chen1e820da32016-03-03 09:45:13 +08001429
Huacai Chene02e07e2019-01-15 16:04:54 +08001430config CPU_LOONGSON3_WORKAROUNDS
Huacai Chencaed1d12019-11-04 14:11:21 +08001431 bool "Old Loongson-3 LLSC Workarounds"
Huacai Chene02e07e2019-01-15 16:04:54 +08001432 default y if SMP
Jiaxun Yang268a2d62019-10-20 22:43:13 +08001433 depends on CPU_LOONGSON64
Huacai Chene02e07e2019-01-15 16:04:54 +08001434 help
Huacai Chencaed1d12019-11-04 14:11:21 +08001435 Loongson-3 processors have the llsc issues which require workarounds.
Huacai Chene02e07e2019-01-15 16:04:54 +08001436 Without workarounds the system may hang unexpectedly.
1437
Huacai Chencaed1d12019-11-04 14:11:21 +08001438 Newer Loongson-3 will fix these issues and no workarounds are needed.
Huacai Chene02e07e2019-01-15 16:04:54 +08001439 The workarounds have no significant side effect on them but may
1440 decrease the performance of the system so this option should be
1441 disabled unless the kernel is intended to be run on old systems.
1442
1443 If unsure, please say Y.
1444
WANG Xueruiec7a9312020-05-23 21:37:01 +08001445config CPU_LOONGSON3_CPUCFG_EMULATION
1446 bool "Emulate the CPUCFG instruction on older Loongson cores"
1447 default y
1448 depends on CPU_LOONGSON64
1449 help
1450 Loongson-3A R4 and newer have the CPUCFG instruction available for
1451 userland to query CPU capabilities, much like CPUID on x86. This
1452 option provides emulation of the instruction on older Loongson
1453 cores, back to Loongson-3A1000.
1454
1455 If unsure, please say Y.
1456
Wu Zhangjin3702bba2009-07-02 23:27:41 +08001457config CPU_LOONGSON2E
1458 bool "Loongson 2E"
1459 depends on SYS_HAS_CPU_LOONGSON2E
Jiaxun Yang268a2d62019-10-20 22:43:13 +08001460 select CPU_LOONGSON2EF
Fuxin Zhang2a21c732007-06-06 14:52:43 +08001461 help
1462 The Loongson 2E processor implements the MIPS III instruction set
1463 with many extensions.
1464
Lucas De Marchi25985ed2011-03-30 22:57:33 -03001465 It has an internal FPGA northbridge, which is compatible to
Wu Zhangjin6f7a2512009-11-06 18:45:05 +08001466 bonito64.
1467
1468config CPU_LOONGSON2F
1469 bool "Loongson 2F"
1470 depends on SYS_HAS_CPU_LOONGSON2F
Jiaxun Yang268a2d62019-10-20 22:43:13 +08001471 select CPU_LOONGSON2EF
Linus Walleijd30a2b42016-04-19 11:23:22 +02001472 select GPIOLIB
Wu Zhangjin6f7a2512009-11-06 18:45:05 +08001473 help
1474 The Loongson 2F processor implements the MIPS III instruction set
1475 with many extensions.
1476
1477 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1478 have a similar programming interface with FPGA northbridge used in
1479 Loongson2E.
1480
Kelvin Cheungca585cf2012-07-25 16:17:24 +02001481config CPU_LOONGSON1B
1482 bool "Loongson 1B"
1483 depends on SYS_HAS_CPU_LOONGSON1B
Huacai Chenb2afb642019-11-04 14:11:20 +08001484 select CPU_LOONGSON32
Kelvin Cheung9ec88b62016-04-06 20:34:54 +08001485 select LEDS_GPIO_REGISTER
Kelvin Cheungca585cf2012-07-25 16:17:24 +02001486 help
1487 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
谢致邦 (XIE Zhibang)968dc5a02017-06-01 18:41:34 +08001488 Release 1 instruction set and part of the MIPS32 Release 2
1489 instruction set.
Kelvin Cheungca585cf2012-07-25 16:17:24 +02001490
Yang Ling12e32802016-05-19 12:29:30 +08001491config CPU_LOONGSON1C
1492 bool "Loongson 1C"
1493 depends on SYS_HAS_CPU_LOONGSON1C
Huacai Chenb2afb642019-11-04 14:11:20 +08001494 select CPU_LOONGSON32
Yang Ling12e32802016-05-19 12:29:30 +08001495 select LEDS_GPIO_REGISTER
1496 help
1497 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
谢致邦 (XIE Zhibang)968dc5a02017-06-01 18:41:34 +08001498 Release 1 instruction set and part of the MIPS32 Release 2
1499 instruction set.
Yang Ling12e32802016-05-19 12:29:30 +08001500
Ralf Baechle6e760c82005-07-06 12:08:11 +00001501config CPU_MIPS32_R1
1502 bool "MIPS32 Release 1"
Ralf Baechle7cf80532005-10-20 22:33:09 +01001503 depends on SYS_HAS_CPU_MIPS32_R1
Ralf Baechle6e760c82005-07-06 12:08:11 +00001504 select CPU_HAS_PREFETCH
Ralf Baechle797798c2005-08-10 15:17:11 +00001505 select CPU_SUPPORTS_32BIT_KERNEL
Ralf Baechleec28f302006-03-05 00:45:33 +00001506 select CPU_SUPPORTS_HIGHMEM
Ralf Baechle6e760c82005-07-06 12:08:11 +00001507 help
Ralf Baechle5e83d432005-10-29 19:32:41 +01001508 Choose this option to build a kernel for release 1 or later of the
Ralf Baechle1e5f1ca2005-07-12 14:51:22 +00001509 MIPS32 architecture. Most modern embedded systems with a 32-bit
1510 MIPS processor are based on a MIPS32 processor. If you know the
1511 specific type of processor in your system, choose those that one
1512 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1513 Release 2 of the MIPS32 architecture is available since several
1514 years so chances are you even have a MIPS32 Release 2 processor
1515 in which case you should choose CPU_MIPS32_R2 instead for better
1516 performance.
1517
1518config CPU_MIPS32_R2
1519 bool "MIPS32 Release 2"
Ralf Baechle7cf80532005-10-20 22:33:09 +01001520 depends on SYS_HAS_CPU_MIPS32_R2
Ralf Baechle1e5f1ca2005-07-12 14:51:22 +00001521 select CPU_HAS_PREFETCH
Ralf Baechle797798c2005-08-10 15:17:11 +00001522 select CPU_SUPPORTS_32BIT_KERNEL
Ralf Baechleec28f302006-03-05 00:45:33 +00001523 select CPU_SUPPORTS_HIGHMEM
Paul Burtona5e9a692014-01-27 15:23:10 +00001524 select CPU_SUPPORTS_MSA
Sanjay Lal2235a542012-11-21 18:33:59 -08001525 select HAVE_KVM
Ralf Baechle1e5f1ca2005-07-12 14:51:22 +00001526 help
Ralf Baechle5e83d432005-10-29 19:32:41 +01001527 Choose this option to build a kernel for release 2 or later of the
Ralf Baechle6e760c82005-07-06 12:08:11 +00001528 MIPS32 architecture. Most modern embedded systems with a 32-bit
1529 MIPS processor are based on a MIPS32 processor. If you know the
1530 specific type of processor in your system, choose those that one
1531 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001532
Serge Seminab7c01f2020-05-21 17:07:14 +03001533config CPU_MIPS32_R5
1534 bool "MIPS32 Release 5"
1535 depends on SYS_HAS_CPU_MIPS32_R5
1536 select CPU_HAS_PREFETCH
1537 select CPU_SUPPORTS_32BIT_KERNEL
1538 select CPU_SUPPORTS_HIGHMEM
1539 select CPU_SUPPORTS_MSA
1540 select HAVE_KVM
1541 select MIPS_O32_FP64_SUPPORT
1542 help
1543 Choose this option to build a kernel for release 5 or later of the
1544 MIPS32 architecture. New MIPS processors, starting with the Warrior
1545 family, are based on a MIPS32r5 processor. If you own an older
1546 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1547
Leonid Yegoshin7fd08ca2014-10-27 10:34:11 +00001548config CPU_MIPS32_R6
Markos Chandras674d10e2015-07-16 13:24:46 +01001549 bool "MIPS32 Release 6"
Leonid Yegoshin7fd08ca2014-10-27 10:34:11 +00001550 depends on SYS_HAS_CPU_MIPS32_R6
1551 select CPU_HAS_PREFETCH
Alexander Lobakin18d84e2e2020-01-22 13:58:50 +03001552 select CPU_NO_LOAD_STORE_LR
Leonid Yegoshin7fd08ca2014-10-27 10:34:11 +00001553 select CPU_SUPPORTS_32BIT_KERNEL
1554 select CPU_SUPPORTS_HIGHMEM
1555 select CPU_SUPPORTS_MSA
1556 select HAVE_KVM
1557 select MIPS_O32_FP64_SUPPORT
1558 help
1559 Choose this option to build a kernel for release 6 or later of the
1560 MIPS32 architecture. New MIPS processors, starting with the Warrior
1561 family, are based on a MIPS32r6 processor. If you own an older
1562 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1563
Ralf Baechle6e760c82005-07-06 12:08:11 +00001564config CPU_MIPS64_R1
1565 bool "MIPS64 Release 1"
Ralf Baechle7cf80532005-10-20 22:33:09 +01001566 depends on SYS_HAS_CPU_MIPS64_R1
Ralf Baechle797798c2005-08-10 15:17:11 +00001567 select CPU_HAS_PREFETCH
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -07001568 select CPU_SUPPORTS_32BIT_KERNEL
1569 select CPU_SUPPORTS_64BIT_KERNEL
Ralf Baechleec28f302006-03-05 00:45:33 +00001570 select CPU_SUPPORTS_HIGHMEM
David Daney9cffd1542009-05-27 17:47:46 -07001571 select CPU_SUPPORTS_HUGEPAGES
Ralf Baechle6e760c82005-07-06 12:08:11 +00001572 help
1573 Choose this option to build a kernel for release 1 or later of the
1574 MIPS64 architecture. Many modern embedded systems with a 64-bit
1575 MIPS processor are based on a MIPS64 processor. If you know the
1576 specific type of processor in your system, choose those that one
1577 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
Ralf Baechle1e5f1ca2005-07-12 14:51:22 +00001578 Release 2 of the MIPS64 architecture is available since several
1579 years so chances are you even have a MIPS64 Release 2 processor
1580 in which case you should choose CPU_MIPS64_R2 instead for better
1581 performance.
1582
1583config CPU_MIPS64_R2
1584 bool "MIPS64 Release 2"
Ralf Baechle7cf80532005-10-20 22:33:09 +01001585 depends on SYS_HAS_CPU_MIPS64_R2
Ralf Baechle797798c2005-08-10 15:17:11 +00001586 select CPU_HAS_PREFETCH
Ralf Baechle1e5f1ca2005-07-12 14:51:22 +00001587 select CPU_SUPPORTS_32BIT_KERNEL
1588 select CPU_SUPPORTS_64BIT_KERNEL
Ralf Baechleec28f302006-03-05 00:45:33 +00001589 select CPU_SUPPORTS_HIGHMEM
David Daney9cffd1542009-05-27 17:47:46 -07001590 select CPU_SUPPORTS_HUGEPAGES
Paul Burtona5e9a692014-01-27 15:23:10 +00001591 select CPU_SUPPORTS_MSA
James Hogan40a2df42016-07-08 11:53:31 +01001592 select HAVE_KVM
Ralf Baechle1e5f1ca2005-07-12 14:51:22 +00001593 help
1594 Choose this option to build a kernel for release 2 or later of the
1595 MIPS64 architecture. Many modern embedded systems with a 64-bit
1596 MIPS processor are based on a MIPS64 processor. If you know the
1597 specific type of processor in your system, choose those that one
1598 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001599
Serge Seminab7c01f2020-05-21 17:07:14 +03001600config CPU_MIPS64_R5
1601 bool "MIPS64 Release 5"
1602 depends on SYS_HAS_CPU_MIPS64_R5
1603 select CPU_HAS_PREFETCH
1604 select CPU_SUPPORTS_32BIT_KERNEL
1605 select CPU_SUPPORTS_64BIT_KERNEL
1606 select CPU_SUPPORTS_HIGHMEM
1607 select CPU_SUPPORTS_HUGEPAGES
1608 select CPU_SUPPORTS_MSA
1609 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1610 select HAVE_KVM
1611 help
1612 Choose this option to build a kernel for release 5 or later of the
1613 MIPS64 architecture. This is a intermediate MIPS architecture
1614 release partly implementing release 6 features. Though there is no
1615 any hardware known to be based on this release.
1616
Leonid Yegoshin7fd08ca2014-10-27 10:34:11 +00001617config CPU_MIPS64_R6
Markos Chandras674d10e2015-07-16 13:24:46 +01001618 bool "MIPS64 Release 6"
Leonid Yegoshin7fd08ca2014-10-27 10:34:11 +00001619 depends on SYS_HAS_CPU_MIPS64_R6
1620 select CPU_HAS_PREFETCH
Alexander Lobakin18d84e2e2020-01-22 13:58:50 +03001621 select CPU_NO_LOAD_STORE_LR
Leonid Yegoshin7fd08ca2014-10-27 10:34:11 +00001622 select CPU_SUPPORTS_32BIT_KERNEL
1623 select CPU_SUPPORTS_64BIT_KERNEL
1624 select CPU_SUPPORTS_HIGHMEM
Paul Burtonafd375d2019-02-02 02:21:53 +00001625 select CPU_SUPPORTS_HUGEPAGES
Leonid Yegoshin7fd08ca2014-10-27 10:34:11 +00001626 select CPU_SUPPORTS_MSA
James Hogan2e6c7742017-02-16 12:39:01 +00001627 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
James Hogan40a2df42016-07-08 11:53:31 +01001628 select HAVE_KVM
Leonid Yegoshin7fd08ca2014-10-27 10:34:11 +00001629 help
1630 Choose this option to build a kernel for release 6 or later of the
1631 MIPS64 architecture. New MIPS processors, starting with the Warrior
1632 family, are based on a MIPS64r6 processor. If you own an older
1633 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1634
Serge Semin281e3ae2020-05-21 17:07:15 +03001635config CPU_P5600
1636 bool "MIPS Warrior P5600"
1637 depends on SYS_HAS_CPU_P5600
1638 select CPU_HAS_PREFETCH
1639 select CPU_SUPPORTS_32BIT_KERNEL
1640 select CPU_SUPPORTS_HIGHMEM
1641 select CPU_SUPPORTS_MSA
1642 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1643 select CPU_SUPPORTS_CPUFREQ
1644 select CPU_MIPSR2_IRQ_VI
1645 select CPU_MIPSR2_IRQ_EI
1646 select HAVE_KVM
1647 select MIPS_O32_FP64_SUPPORT
1648 help
1649 Choose this option to build a kernel for MIPS Warrior P5600 CPU.
1650 It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
1651 MMU with two-levels TLB, UCA, MSA, MDU core level features and system
1652 level features like up to six P5600 calculation cores, CM2 with L2
1653 cache, IOCU/IOMMU (though might be unused depending on the system-
1654 specific IP core configuration), GIC, CPC, virtualisation module,
1655 eJTAG and PDtrace.
1656
Linus Torvalds1da177e2005-04-16 15:20:36 -07001657config CPU_R3000
1658 bool "R3000"
Ralf Baechle7cf80532005-10-20 22:33:09 +01001659 depends on SYS_HAS_CPU_R3000
Ralf Baechlef7062dd2006-04-24 14:58:53 +01001660 select CPU_HAS_WB
Paul Burton54746822019-08-31 15:40:43 +00001661 select CPU_R3K_TLB
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -07001662 select CPU_SUPPORTS_32BIT_KERNEL
Ralf Baechle797798c2005-08-10 15:17:11 +00001663 select CPU_SUPPORTS_HIGHMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001664 help
1665 Please make sure to pick the right CPU type. Linux/MIPS is not
1666 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1667 *not* work on R4000 machines and vice versa. However, since most
1668 of the supported machines have an R4000 (or similar) CPU, R4x00
1669 might be a safe bet. If the resulting kernel does not work,
1670 try to recompile with R3000.
1671
1672config CPU_TX39XX
1673 bool "R39XX"
Ralf Baechle7cf80532005-10-20 22:33:09 +01001674 depends on SYS_HAS_CPU_TX39XX
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -07001675 select CPU_SUPPORTS_32BIT_KERNEL
Paul Burton54746822019-08-31 15:40:43 +00001676 select CPU_R3K_TLB
Linus Torvalds1da177e2005-04-16 15:20:36 -07001677
1678config CPU_VR41XX
1679 bool "R41xx"
Ralf Baechle7cf80532005-10-20 22:33:09 +01001680 depends on SYS_HAS_CPU_VR41XX
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -07001681 select CPU_SUPPORTS_32BIT_KERNEL
1682 select CPU_SUPPORTS_64BIT_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001683 help
Ralf Baechle5e83d432005-10-29 19:32:41 +01001684 The options selects support for the NEC VR4100 series of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001685 Only choose this option if you have one of these processors as a
1686 kernel built with this option will not run on any other type of
1687 processor or vice versa.
1688
Linus Torvalds1da177e2005-04-16 15:20:36 -07001689config CPU_R4X00
1690 bool "R4x00"
Ralf Baechle7cf80532005-10-20 22:33:09 +01001691 depends on SYS_HAS_CPU_R4X00
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -07001692 select CPU_SUPPORTS_32BIT_KERNEL
1693 select CPU_SUPPORTS_64BIT_KERNEL
Ralf Baechle970d0322012-10-18 13:54:15 +02001694 select CPU_SUPPORTS_HUGEPAGES
Linus Torvalds1da177e2005-04-16 15:20:36 -07001695 help
1696 MIPS Technologies R4000-series processors other than 4300, including
1697 the R4000, R4400, R4600, and 4700.
1698
1699config CPU_TX49XX
1700 bool "R49XX"
Ralf Baechle7cf80532005-10-20 22:33:09 +01001701 depends on SYS_HAS_CPU_TX49XX
Atsushi Nemotode862b42006-03-17 12:59:22 +09001702 select CPU_HAS_PREFETCH
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -07001703 select CPU_SUPPORTS_32BIT_KERNEL
1704 select CPU_SUPPORTS_64BIT_KERNEL
Ralf Baechle970d0322012-10-18 13:54:15 +02001705 select CPU_SUPPORTS_HUGEPAGES
Linus Torvalds1da177e2005-04-16 15:20:36 -07001706
1707config CPU_R5000
1708 bool "R5000"
Ralf Baechle7cf80532005-10-20 22:33:09 +01001709 depends on SYS_HAS_CPU_R5000
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -07001710 select CPU_SUPPORTS_32BIT_KERNEL
1711 select CPU_SUPPORTS_64BIT_KERNEL
Ralf Baechle970d0322012-10-18 13:54:15 +02001712 select CPU_SUPPORTS_HUGEPAGES
Linus Torvalds1da177e2005-04-16 15:20:36 -07001713 help
1714 MIPS Technologies R5000-series processors other than the Nevada.
1715
Shinya Kuribayashi542c1022008-10-24 01:27:57 +09001716config CPU_R5500
1717 bool "R5500"
1718 depends on SYS_HAS_CPU_R5500
Shinya Kuribayashi542c1022008-10-24 01:27:57 +09001719 select CPU_SUPPORTS_32BIT_KERNEL
1720 select CPU_SUPPORTS_64BIT_KERNEL
David Daney9cffd1542009-05-27 17:47:46 -07001721 select CPU_SUPPORTS_HUGEPAGES
Shinya Kuribayashi542c1022008-10-24 01:27:57 +09001722 help
1723 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1724 instruction set.
1725
Linus Torvalds1da177e2005-04-16 15:20:36 -07001726config CPU_NEVADA
1727 bool "RM52xx"
Ralf Baechle7cf80532005-10-20 22:33:09 +01001728 depends on SYS_HAS_CPU_NEVADA
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -07001729 select CPU_SUPPORTS_32BIT_KERNEL
1730 select CPU_SUPPORTS_64BIT_KERNEL
Ralf Baechle970d0322012-10-18 13:54:15 +02001731 select CPU_SUPPORTS_HUGEPAGES
Linus Torvalds1da177e2005-04-16 15:20:36 -07001732 help
1733 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1734
Linus Torvalds1da177e2005-04-16 15:20:36 -07001735config CPU_R10000
1736 bool "R10000"
Ralf Baechle7cf80532005-10-20 22:33:09 +01001737 depends on SYS_HAS_CPU_R10000
Ralf Baechle5e83d432005-10-29 19:32:41 +01001738 select CPU_HAS_PREFETCH
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -07001739 select CPU_SUPPORTS_32BIT_KERNEL
1740 select CPU_SUPPORTS_64BIT_KERNEL
Ralf Baechle797798c2005-08-10 15:17:11 +00001741 select CPU_SUPPORTS_HIGHMEM
Ralf Baechle970d0322012-10-18 13:54:15 +02001742 select CPU_SUPPORTS_HUGEPAGES
Linus Torvalds1da177e2005-04-16 15:20:36 -07001743 help
1744 MIPS Technologies R10000-series processors.
1745
1746config CPU_RM7000
1747 bool "RM7000"
Ralf Baechle7cf80532005-10-20 22:33:09 +01001748 depends on SYS_HAS_CPU_RM7000
Ralf Baechle5e83d432005-10-29 19:32:41 +01001749 select CPU_HAS_PREFETCH
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -07001750 select CPU_SUPPORTS_32BIT_KERNEL
1751 select CPU_SUPPORTS_64BIT_KERNEL
Ralf Baechle797798c2005-08-10 15:17:11 +00001752 select CPU_SUPPORTS_HIGHMEM
Ralf Baechle970d0322012-10-18 13:54:15 +02001753 select CPU_SUPPORTS_HUGEPAGES
Linus Torvalds1da177e2005-04-16 15:20:36 -07001754
1755config CPU_SB1
1756 bool "SB1"
Ralf Baechle7cf80532005-10-20 22:33:09 +01001757 depends on SYS_HAS_CPU_SB1
Yoichi Yuasaed5ba2f2005-09-03 15:56:21 -07001758 select CPU_SUPPORTS_32BIT_KERNEL
1759 select CPU_SUPPORTS_64BIT_KERNEL
Ralf Baechle797798c2005-08-10 15:17:11 +00001760 select CPU_SUPPORTS_HIGHMEM
Ralf Baechle970d0322012-10-18 13:54:15 +02001761 select CPU_SUPPORTS_HUGEPAGES
Ralf Baechle0004a9d2006-10-31 03:45:07 +00001762 select WEAK_ORDERING
Linus Torvalds1da177e2005-04-16 15:20:36 -07001763
David Daneya86c7f72008-12-11 15:33:38 -08001764config CPU_CAVIUM_OCTEON
1765 bool "Cavium Octeon processor"
David Daney5e683382009-02-02 11:30:59 -08001766 depends on SYS_HAS_CPU_CAVIUM_OCTEON
David Daneya86c7f72008-12-11 15:33:38 -08001767 select CPU_HAS_PREFETCH
1768 select CPU_SUPPORTS_64BIT_KERNEL
David Daneya86c7f72008-12-11 15:33:38 -08001769 select WEAK_ORDERING
David Daneya86c7f72008-12-11 15:33:38 -08001770 select CPU_SUPPORTS_HIGHMEM
David Daney9cffd1542009-05-27 17:47:46 -07001771 select CPU_SUPPORTS_HUGEPAGES
Ben Hutchingsdf115f32015-05-25 20:27:29 +01001772 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1773 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
Florian Fainelli930beb52014-01-14 09:54:38 -08001774 select MIPS_L1_CACHE_SHIFT_7
James Hogan0ae3abc2017-03-14 10:25:51 +00001775 select HAVE_KVM
David Daneya86c7f72008-12-11 15:33:38 -08001776 help
1777 The Cavium Octeon processor is a highly integrated chip containing
1778 many ethernet hardware widgets for networking tasks. The processor
1779 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1780 Full details can be found at http://www.caviumnetworks.com.
1781
Jonas Gorskicd746242013-12-18 14:12:02 +01001782config CPU_BMIPS
1783 bool "Broadcom BMIPS"
1784 depends on SYS_HAS_CPU_BMIPS
1785 select CPU_MIPS32
Jonas Gorskife7f62c2013-12-18 14:12:05 +01001786 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
Jonas Gorskicd746242013-12-18 14:12:02 +01001787 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1788 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1789 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1790 select CPU_SUPPORTS_32BIT_KERNEL
1791 select DMA_NONCOHERENT
Ralf Baechle67e38cf2015-05-26 18:20:06 +02001792 select IRQ_MIPS_CPU
Jonas Gorskicd746242013-12-18 14:12:02 +01001793 select SWAP_IO_SPACE
1794 select WEAK_ORDERING
Kevin Cernekeec1c0c462010-10-17 10:56:53 -07001795 select CPU_SUPPORTS_HIGHMEM
Jonas Gorski69aaf9c2013-12-18 14:12:04 +01001796 select CPU_HAS_PREFETCH
Markus Mayera8d709b2017-02-07 13:58:54 -08001797 select CPU_SUPPORTS_CPUFREQ
1798 select MIPS_EXTERNAL_TIMER
Kevin Cernekeec1c0c462010-10-17 10:56:53 -07001799 help
Jonas Gorskife7f62c2013-12-18 14:12:05 +01001800 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
Kevin Cernekeec1c0c462010-10-17 10:56:53 -07001801
Jayachandran C7f058e82011-05-07 01:36:57 +05301802config CPU_XLR
1803 bool "Netlogic XLR SoC"
1804 depends on SYS_HAS_CPU_XLR
1805 select CPU_SUPPORTS_32BIT_KERNEL
1806 select CPU_SUPPORTS_64BIT_KERNEL
1807 select CPU_SUPPORTS_HIGHMEM
Ralf Baechle970d0322012-10-18 13:54:15 +02001808 select CPU_SUPPORTS_HUGEPAGES
Jayachandran C7f058e82011-05-07 01:36:57 +05301809 select WEAK_ORDERING
1810 select WEAK_REORDERING_BEYOND_LLSC
Jayachandran C7f058e82011-05-07 01:36:57 +05301811 help
1812 Netlogic Microsystems XLR/XLS processors.
Jayachandran C1c773ea2011-11-16 00:21:28 +00001813
1814config CPU_XLP
1815 bool "Netlogic XLP SoC"
1816 depends on SYS_HAS_CPU_XLP
1817 select CPU_SUPPORTS_32BIT_KERNEL
1818 select CPU_SUPPORTS_64BIT_KERNEL
1819 select CPU_SUPPORTS_HIGHMEM
Jayachandran C1c773ea2011-11-16 00:21:28 +00001820 select WEAK_ORDERING
1821 select WEAK_REORDERING_BEYOND_LLSC
1822 select CPU_HAS_PREFETCH
Jayachandran Cd6504842012-10-31 12:01:29 +00001823 select CPU_MIPSR2
Prem Mallappaddba6832015-01-07 16:58:32 +05301824 select CPU_SUPPORTS_HUGEPAGES
Paul Burton2db003a2016-05-06 14:36:24 +01001825 select MIPS_ASID_BITS_VARIABLE
Jayachandran C1c773ea2011-11-16 00:21:28 +00001826 help
1827 Netlogic Microsystems XLP processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001828endchoice
1829
Leonid Yegoshina6e18782013-12-03 10:22:26 +00001830config CPU_MIPS32_3_5_FEATURES
1831 bool "MIPS32 Release 3.5 Features"
1832 depends on SYS_HAS_CPU_MIPS32_R3_5
Serge Semin281e3ae2020-05-21 17:07:15 +03001833 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
1834 CPU_P5600
Leonid Yegoshina6e18782013-12-03 10:22:26 +00001835 help
1836 Choose this option to build a kernel for release 2 or later of the
1837 MIPS32 architecture including features from the 3.5 release such as
1838 support for Enhanced Virtual Addressing (EVA).
1839
1840config CPU_MIPS32_3_5_EVA
1841 bool "Enhanced Virtual Addressing (EVA)"
1842 depends on CPU_MIPS32_3_5_FEATURES
1843 select EVA
1844 default y
1845 help
1846 Choose this option if you want to enable the Enhanced Virtual
1847 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1848 One of its primary benefits is an increase in the maximum size
1849 of lowmem (up to 3GB). If unsure, say 'N' here.
1850
Steven J. Hillc5b36782015-02-26 18:16:38 -06001851config CPU_MIPS32_R5_FEATURES
1852 bool "MIPS32 Release 5 Features"
1853 depends on SYS_HAS_CPU_MIPS32_R5
Serge Semin281e3ae2020-05-21 17:07:15 +03001854 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
Steven J. Hillc5b36782015-02-26 18:16:38 -06001855 help
1856 Choose this option to build a kernel for release 2 or later of the
1857 MIPS32 architecture including features from release 5 such as
1858 support for Extended Physical Addressing (XPA).
1859
1860config CPU_MIPS32_R5_XPA
1861 bool "Extended Physical Addressing (XPA)"
1862 depends on CPU_MIPS32_R5_FEATURES
1863 depends on !EVA
1864 depends on !PAGE_SIZE_4KB
1865 depends on SYS_SUPPORTS_HIGHMEM
1866 select XPA
1867 select HIGHMEM
Christoph Hellwigd4a451d2018-04-03 16:24:20 +02001868 select PHYS_ADDR_T_64BIT
Steven J. Hillc5b36782015-02-26 18:16:38 -06001869 default n
1870 help
1871 Choose this option if you want to enable the Extended Physical
1872 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1873 benefit is to increase physical addressing equal to or greater
1874 than 40 bits. Note that this has the side effect of turning on
1875 64-bit addressing which in turn makes the PTEs 64-bit in size.
1876 If unsure, say 'N' here.
1877
Wu Zhangjin622844b2010-04-10 20:04:42 +08001878if CPU_LOONGSON2F
1879config CPU_NOP_WORKAROUNDS
1880 bool
1881
1882config CPU_JUMP_WORKAROUNDS
1883 bool
1884
1885config CPU_LOONGSON2F_WORKAROUNDS
1886 bool "Loongson 2F Workarounds"
1887 default y
1888 select CPU_NOP_WORKAROUNDS
1889 select CPU_JUMP_WORKAROUNDS
1890 help
1891 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1892 require workarounds. Without workarounds the system may hang
1893 unexpectedly. For more information please refer to the gas
1894 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1895
1896 Loongson 2F03 and later have fixed these issues and no workarounds
1897 are needed. The workarounds have no significant side effect on them
1898 but may decrease the performance of the system so this option should
1899 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1900 systems.
1901
1902 If unsure, please say Y.
1903endif # CPU_LOONGSON2F
1904
Wu Zhangjin1b93b3c2009-10-14 18:12:16 +08001905config SYS_SUPPORTS_ZBOOT
1906 bool
1907 select HAVE_KERNEL_GZIP
1908 select HAVE_KERNEL_BZIP2
Florian Fainelli31c48672013-09-16 16:55:20 +01001909 select HAVE_KERNEL_LZ4
Wu Zhangjin1b93b3c2009-10-14 18:12:16 +08001910 select HAVE_KERNEL_LZMA
Wu Zhangjinfe1d45e2010-01-15 20:34:46 +08001911 select HAVE_KERNEL_LZO
Florian Fainelli4e23eb62013-09-11 11:51:41 +01001912 select HAVE_KERNEL_XZ
Wu Zhangjin1b93b3c2009-10-14 18:12:16 +08001913
1914config SYS_SUPPORTS_ZBOOT_UART16550
1915 bool
1916 select SYS_SUPPORTS_ZBOOT
1917
Alban Bedeldbb98312015-12-10 10:57:21 +01001918config SYS_SUPPORTS_ZBOOT_UART_PROM
1919 bool
1920 select SYS_SUPPORTS_ZBOOT
1921
Jiaxun Yang268a2d62019-10-20 22:43:13 +08001922config CPU_LOONGSON2EF
Wu Zhangjin3702bba2009-07-02 23:27:41 +08001923 bool
1924 select CPU_SUPPORTS_32BIT_KERNEL
1925 select CPU_SUPPORTS_64BIT_KERNEL
1926 select CPU_SUPPORTS_HIGHMEM
Ralf Baechle970d0322012-10-18 13:54:15 +02001927 select CPU_SUPPORTS_HUGEPAGES
Christoph Hellwige9050862018-06-20 09:11:15 +02001928 select ARCH_HAS_PHYS_TO_DMA
Wu Zhangjin3702bba2009-07-02 23:27:41 +08001929
Huacai Chenb2afb642019-11-04 14:11:20 +08001930config CPU_LOONGSON32
Kelvin Cheungca585cf2012-07-25 16:17:24 +02001931 bool
1932 select CPU_MIPS32
Jiaxun Yang7e280f62019-01-22 21:04:12 +08001933 select CPU_MIPSR2
Kelvin Cheungca585cf2012-07-25 16:17:24 +02001934 select CPU_HAS_PREFETCH
1935 select CPU_SUPPORTS_32BIT_KERNEL
1936 select CPU_SUPPORTS_HIGHMEM
Kelvin Cheungf29ad102014-10-10 11:40:01 +08001937 select CPU_SUPPORTS_CPUFREQ
Kelvin Cheungca585cf2012-07-25 16:17:24 +02001938
Jonas Gorskife7f62c2013-12-18 14:12:05 +01001939config CPU_BMIPS32_3300
Jonas Gorski04fa8bf2013-12-18 14:12:06 +01001940 select SMP_UP if SMP
Kevin Cernekee1bbb6c12011-11-10 22:30:24 -08001941 bool
Jonas Gorskicd746242013-12-18 14:12:02 +01001942
1943config CPU_BMIPS4350
1944 bool
1945 select SYS_SUPPORTS_SMP
1946 select SYS_SUPPORTS_HOTPLUG_CPU
1947
1948config CPU_BMIPS4380
1949 bool
Kevin Cernekeebbf2ba62014-10-20 21:27:58 -07001950 select MIPS_L1_CACHE_SHIFT_6
Jonas Gorskicd746242013-12-18 14:12:02 +01001951 select SYS_SUPPORTS_SMP
1952 select SYS_SUPPORTS_HOTPLUG_CPU
Florian Fainellib4720802016-02-09 12:55:53 -08001953 select CPU_HAS_RIXI
Jonas Gorskicd746242013-12-18 14:12:02 +01001954
1955config CPU_BMIPS5000
1956 bool
Jonas Gorskicd746242013-12-18 14:12:02 +01001957 select MIPS_CPU_SCACHE
Kevin Cernekeebbf2ba62014-10-20 21:27:58 -07001958 select MIPS_L1_CACHE_SHIFT_7
Jonas Gorskicd746242013-12-18 14:12:02 +01001959 select SYS_SUPPORTS_SMP
1960 select SYS_SUPPORTS_HOTPLUG_CPU
Florian Fainellib4720802016-02-09 12:55:53 -08001961 select CPU_HAS_RIXI
Kevin Cernekee1bbb6c12011-11-10 22:30:24 -08001962
Jiaxun Yang268a2d62019-10-20 22:43:13 +08001963config SYS_HAS_CPU_LOONGSON64
Huacai Chen0e476d92014-03-21 18:44:07 +08001964 bool
1965 select CPU_SUPPORTS_CPUFREQ
Huacai Chenb2edcfc2016-03-03 09:45:09 +08001966 select CPU_HAS_RIXI
Huacai Chen0e476d92014-03-21 18:44:07 +08001967
Wu Zhangjin3702bba2009-07-02 23:27:41 +08001968config SYS_HAS_CPU_LOONGSON2E
Fuxin Zhang2a21c732007-06-06 14:52:43 +08001969 bool
1970
Wu Zhangjin6f7a2512009-11-06 18:45:05 +08001971config SYS_HAS_CPU_LOONGSON2F
1972 bool
Wu Zhangjin55045ff2009-11-11 13:39:12 +08001973 select CPU_SUPPORTS_CPUFREQ
1974 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
Wu Zhangjin6f7a2512009-11-06 18:45:05 +08001975
Kelvin Cheungca585cf2012-07-25 16:17:24 +02001976config SYS_HAS_CPU_LOONGSON1B
1977 bool
1978
Yang Ling12e32802016-05-19 12:29:30 +08001979config SYS_HAS_CPU_LOONGSON1C
1980 bool
1981
Ralf Baechle7cf80532005-10-20 22:33:09 +01001982config SYS_HAS_CPU_MIPS32_R1
1983 bool
1984
1985config SYS_HAS_CPU_MIPS32_R2
1986 bool
1987
Leonid Yegoshina6e18782013-12-03 10:22:26 +00001988config SYS_HAS_CPU_MIPS32_R3_5
1989 bool
1990
Steven J. Hillc5b36782015-02-26 18:16:38 -06001991config SYS_HAS_CPU_MIPS32_R5
1992 bool
Paul Burton9ae1f262019-02-04 13:52:58 -08001993 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
Steven J. Hillc5b36782015-02-26 18:16:38 -06001994
Leonid Yegoshin7fd08ca2014-10-27 10:34:11 +00001995config SYS_HAS_CPU_MIPS32_R6
1996 bool
Paul Burton9ae1f262019-02-04 13:52:58 -08001997 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
Leonid Yegoshin7fd08ca2014-10-27 10:34:11 +00001998
Ralf Baechle7cf80532005-10-20 22:33:09 +01001999config SYS_HAS_CPU_MIPS64_R1
2000 bool
2001
2002config SYS_HAS_CPU_MIPS64_R2
2003 bool
2004
Leonid Yegoshin7fd08ca2014-10-27 10:34:11 +00002005config SYS_HAS_CPU_MIPS64_R6
2006 bool
Paul Burton9ae1f262019-02-04 13:52:58 -08002007 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
Leonid Yegoshin7fd08ca2014-10-27 10:34:11 +00002008
Serge Semin281e3ae2020-05-21 17:07:15 +03002009config SYS_HAS_CPU_P5600
2010 bool
2011 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2012
Ralf Baechle7cf80532005-10-20 22:33:09 +01002013config SYS_HAS_CPU_R3000
2014 bool
2015
2016config SYS_HAS_CPU_TX39XX
2017 bool
2018
2019config SYS_HAS_CPU_VR41XX
2020 bool
2021
Ralf Baechle7cf80532005-10-20 22:33:09 +01002022config SYS_HAS_CPU_R4X00
2023 bool
2024
2025config SYS_HAS_CPU_TX49XX
2026 bool
2027
2028config SYS_HAS_CPU_R5000
2029 bool
2030
Shinya Kuribayashi542c1022008-10-24 01:27:57 +09002031config SYS_HAS_CPU_R5500
2032 bool
2033
Ralf Baechle7cf80532005-10-20 22:33:09 +01002034config SYS_HAS_CPU_NEVADA
2035 bool
2036
Ralf Baechle7cf80532005-10-20 22:33:09 +01002037config SYS_HAS_CPU_R10000
2038 bool
Paul Burton9ae1f262019-02-04 13:52:58 -08002039 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
Ralf Baechle7cf80532005-10-20 22:33:09 +01002040
2041config SYS_HAS_CPU_RM7000
2042 bool
2043
Ralf Baechle7cf80532005-10-20 22:33:09 +01002044config SYS_HAS_CPU_SB1
2045 bool
2046
David Daney5e683382009-02-02 11:30:59 -08002047config SYS_HAS_CPU_CAVIUM_OCTEON
2048 bool
2049
Jonas Gorskicd746242013-12-18 14:12:02 +01002050config SYS_HAS_CPU_BMIPS
Kevin Cernekeec1c0c462010-10-17 10:56:53 -07002051 bool
2052
Jonas Gorskife7f62c2013-12-18 14:12:05 +01002053config SYS_HAS_CPU_BMIPS32_3300
Kevin Cernekeec1c0c462010-10-17 10:56:53 -07002054 bool
Jonas Gorskicd746242013-12-18 14:12:02 +01002055 select SYS_HAS_CPU_BMIPS
Kevin Cernekeec1c0c462010-10-17 10:56:53 -07002056
2057config SYS_HAS_CPU_BMIPS4350
2058 bool
Jonas Gorskicd746242013-12-18 14:12:02 +01002059 select SYS_HAS_CPU_BMIPS
Kevin Cernekeec1c0c462010-10-17 10:56:53 -07002060
2061config SYS_HAS_CPU_BMIPS4380
2062 bool
Jonas Gorskicd746242013-12-18 14:12:02 +01002063 select SYS_HAS_CPU_BMIPS
Kevin Cernekeec1c0c462010-10-17 10:56:53 -07002064
2065config SYS_HAS_CPU_BMIPS5000
2066 bool
Jonas Gorskicd746242013-12-18 14:12:02 +01002067 select SYS_HAS_CPU_BMIPS
Hauke Mehrtensf263f2a2018-12-09 16:49:57 +01002068 select ARCH_HAS_SYNC_DMA_FOR_CPU
Kevin Cernekeec1c0c462010-10-17 10:56:53 -07002069
Jayachandran C7f058e82011-05-07 01:36:57 +05302070config SYS_HAS_CPU_XLR
2071 bool
2072
Jayachandran C1c773ea2011-11-16 00:21:28 +00002073config SYS_HAS_CPU_XLP
2074 bool
2075
Ralf Baechle17099b12007-07-14 13:24:05 +01002076#
2077# CPU may reorder R->R, R->W, W->R, W->W
2078# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2079#
Ralf Baechle0004a9d2006-10-31 03:45:07 +00002080config WEAK_ORDERING
2081 bool
Ralf Baechle17099b12007-07-14 13:24:05 +01002082
2083#
2084# CPU may reorder reads and writes beyond LL/SC
2085# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2086#
2087config WEAK_REORDERING_BEYOND_LLSC
2088 bool
Ralf Baechle5e83d432005-10-29 19:32:41 +01002089endmenu
2090
2091#
Chris Dearmanc09b47d2006-06-20 17:15:20 +01002092# These two indicate any level of the MIPS32 and MIPS64 architecture
Ralf Baechle5e83d432005-10-29 19:32:41 +01002093#
2094config CPU_MIPS32
2095 bool
Serge Seminab7c01f2020-05-21 17:07:14 +03002096 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
Serge Semin281e3ae2020-05-21 17:07:15 +03002097 CPU_MIPS32_R6 || CPU_P5600
Ralf Baechle5e83d432005-10-29 19:32:41 +01002098
2099config CPU_MIPS64
2100 bool
Serge Seminab7c01f2020-05-21 17:07:14 +03002101 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
2102 CPU_MIPS64_R6
Ralf Baechle5e83d432005-10-29 19:32:41 +01002103
2104#
Paul Burton57eeace2018-11-08 23:44:55 +00002105# These indicate the revision of the architecture
Ralf Baechle5e83d432005-10-29 19:32:41 +01002106#
2107config CPU_MIPSR1
2108 bool
2109 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2110
2111config CPU_MIPSR2
2112 bool
David Daneya86c7f72008-12-11 15:33:38 -08002113 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
Florian Fainelli8256b172016-02-09 12:55:51 -08002114 select CPU_HAS_RIXI
Jiaxun Yangba9196d2020-01-13 18:14:59 +08002115 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
Markos Chandrasa7e07b12014-11-13 13:32:03 +00002116 select MIPS_SPRAM
Ralf Baechle5e83d432005-10-29 19:32:41 +01002117
Serge Seminab7c01f2020-05-21 17:07:14 +03002118config CPU_MIPSR5
2119 bool
Serge Semin281e3ae2020-05-21 17:07:15 +03002120 default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
Serge Seminab7c01f2020-05-21 17:07:14 +03002121 select CPU_HAS_RIXI
2122 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2123 select MIPS_SPRAM
2124
Leonid Yegoshin7fd08ca2014-10-27 10:34:11 +00002125config CPU_MIPSR6
2126 bool
2127 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
Florian Fainelli8256b172016-02-09 12:55:51 -08002128 select CPU_HAS_RIXI
Jiaxun Yangba9196d2020-01-13 18:14:59 +08002129 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
Paul Burton87321fd2016-05-06 13:35:03 +01002130 select HAVE_ARCH_BITREVERSE
Paul Burton2db003a2016-05-06 14:36:24 +01002131 select MIPS_ASID_BITS_VARIABLE
Marcin Nowakowski4a5dc512018-02-09 22:11:06 +00002132 select MIPS_CRC_SUPPORT
Markos Chandrasa7e07b12014-11-13 13:32:03 +00002133 select MIPS_SPRAM
Ralf Baechle5e83d432005-10-29 19:32:41 +01002134
Paul Burton57eeace2018-11-08 23:44:55 +00002135config TARGET_ISA_REV
2136 int
2137 default 1 if CPU_MIPSR1
2138 default 2 if CPU_MIPSR2
Serge Seminab7c01f2020-05-21 17:07:14 +03002139 default 5 if CPU_MIPSR5
Paul Burton57eeace2018-11-08 23:44:55 +00002140 default 6 if CPU_MIPSR6
2141 default 0
2142 help
2143 Reflects the ISA revision being targeted by the kernel build. This
2144 is effectively the Kconfig equivalent of MIPS_ISA_REV.
2145
Leonid Yegoshina6e18782013-12-03 10:22:26 +00002146config EVA
2147 bool
2148
Steven J. Hillc5b36782015-02-26 18:16:38 -06002149config XPA
2150 bool
2151
Ralf Baechle5e83d432005-10-29 19:32:41 +01002152config SYS_SUPPORTS_32BIT_KERNEL
2153 bool
2154config SYS_SUPPORTS_64BIT_KERNEL
2155 bool
2156config CPU_SUPPORTS_32BIT_KERNEL
2157 bool
2158config CPU_SUPPORTS_64BIT_KERNEL
2159 bool
Wu Zhangjin55045ff2009-11-11 13:39:12 +08002160config CPU_SUPPORTS_CPUFREQ
2161 bool
2162config CPU_SUPPORTS_ADDRWINCFG
2163 bool
David Daney9cffd1542009-05-27 17:47:46 -07002164config CPU_SUPPORTS_HUGEPAGES
2165 bool
Daniel Silsby171543e2019-07-15 17:39:59 -04002166 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
David Daney82622282009-10-14 12:16:56 -07002167config MIPS_PGD_C0_CONTEXT
2168 bool
Paul Burtoncebf8c02017-06-02 15:38:03 -07002169 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
Ralf Baechle5e83d432005-10-29 19:32:41 +01002170
David Daney8192c9e2008-09-23 00:04:26 -07002171#
2172# Set to y for ptrace access to watch registers.
2173#
2174config HARDWARE_WATCHPOINTS
Enrico Weigelt, metux IT consult371a4152019-03-11 16:54:27 +01002175 bool
2176 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
David Daney8192c9e2008-09-23 00:04:26 -07002177
Ralf Baechle5e83d432005-10-29 19:32:41 +01002178menu "Kernel type"
2179
2180choice
Ralf Baechle5e83d432005-10-29 19:32:41 +01002181 prompt "Kernel code model"
2182 help
2183 You should only select this option if you have a workload that
2184 actually benefits from 64-bit processing or if your machine has
2185 large memory. You will only be presented a single option in this
2186 menu if your system does not support both 32-bit and 64-bit kernels.
2187
2188config 32BIT
2189 bool "32-bit kernel"
2190 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2191 select TRAD_SIGNALS
2192 help
2193 Select this option if you want to build a 32-bit kernel.
Ralf Baechlef17c4ca2015-07-23 12:02:09 +02002194
Ralf Baechle5e83d432005-10-29 19:32:41 +01002195config 64BIT
2196 bool "64-bit kernel"
2197 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2198 help
2199 Select this option if you want to build a 64-bit kernel.
2200
2201endchoice
2202
Sanjay Lal2235a542012-11-21 18:33:59 -08002203config KVM_GUEST
2204 bool "KVM Guest Kernel"
James Hoganf2a5b1d2013-07-12 10:26:11 +00002205 depends on BROKEN_ON_SMP
Sanjay Lal2235a542012-11-21 18:33:59 -08002206 help
James Hogancaa1faa2015-12-16 23:49:26 +00002207 Select this option if building a guest kernel for KVM (Trap & Emulate)
2208 mode.
Sanjay Lal2235a542012-11-21 18:33:59 -08002209
James Hoganeda3d332014-05-29 10:16:36 +01002210config KVM_GUEST_TIMER_FREQ
2211 int "Count/Compare Timer Frequency (MHz)"
Sanjay Lal2235a542012-11-21 18:33:59 -08002212 depends on KVM_GUEST
James Hoganeda3d332014-05-29 10:16:36 +01002213 default 100
Sanjay Lal2235a542012-11-21 18:33:59 -08002214 help
James Hoganeda3d332014-05-29 10:16:36 +01002215 Set this to non-zero if building a guest kernel for KVM to skip RTC
2216 emulation when determining guest CPU Frequency. Instead, the guest's
2217 timer frequency is specified directly.
Sanjay Lal2235a542012-11-21 18:33:59 -08002218
Leonid Yegoshin1e321fa2015-05-14 18:34:43 -07002219config MIPS_VA_BITS_48
2220 bool "48 bits virtual memory"
2221 depends on 64BIT
2222 help
Alex Belits3377e222017-02-16 17:27:34 -08002223 Support a maximum at least 48 bits of application virtual
2224 memory. Default is 40 bits or less, depending on the CPU.
2225 For page sizes 16k and above, this option results in a small
2226 memory overhead for page tables. For 4k page size, a fourth
2227 level of page tables is added which imposes both a memory
2228 overhead as well as slower TLB fault handling.
2229
Leonid Yegoshin1e321fa2015-05-14 18:34:43 -07002230 If unsure, say N.
2231
Linus Torvalds1da177e2005-04-16 15:20:36 -07002232choice
2233 prompt "Kernel page size"
2234 default PAGE_SIZE_4KB
2235
2236config PAGE_SIZE_4KB
2237 bool "4kB"
Jiaxun Yang268a2d62019-10-20 22:43:13 +08002238 depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
Linus Torvalds1da177e2005-04-16 15:20:36 -07002239 help
Enrico Weigelt, metux IT consult371a4152019-03-11 16:54:27 +01002240 This option select the standard 4kB Linux page size. On some
2241 R3000-family processors this is the only available page size. Using
2242 4kB page size will minimize memory consumption and is therefore
2243 recommended for low memory systems.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002244
2245config PAGE_SIZE_8KB
2246 bool "8kB"
Paul Burtonc2aeaae2019-07-22 22:00:03 +00002247 depends on CPU_CAVIUM_OCTEON
Leonid Yegoshin1e321fa2015-05-14 18:34:43 -07002248 depends on !MIPS_VA_BITS_48
Linus Torvalds1da177e2005-04-16 15:20:36 -07002249 help
2250 Using 8kB page size will result in higher performance kernel at
2251 the price of higher memory consumption. This option is available
Paul Burtonc2aeaae2019-07-22 22:00:03 +00002252 only on cnMIPS processors. Note that you will need a suitable Linux
2253 distribution to support this.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002254
2255config PAGE_SIZE_16KB
2256 bool "16kB"
Ralf Baechle714bfad2006-05-17 14:04:30 +01002257 depends on !CPU_R3000 && !CPU_TX39XX
Linus Torvalds1da177e2005-04-16 15:20:36 -07002258 help
2259 Using 16kB page size will result in higher performance kernel at
2260 the price of higher memory consumption. This option is available on
Ralf Baechle714bfad2006-05-17 14:04:30 +01002261 all non-R3000 family processors. Note that you will need a suitable
2262 Linux distribution to support this.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002263
Ralf Baechlec52399b2009-04-02 14:07:10 +02002264config PAGE_SIZE_32KB
2265 bool "32kB"
2266 depends on CPU_CAVIUM_OCTEON
Leonid Yegoshin1e321fa2015-05-14 18:34:43 -07002267 depends on !MIPS_VA_BITS_48
Ralf Baechlec52399b2009-04-02 14:07:10 +02002268 help
2269 Using 32kB page size will result in higher performance kernel at
2270 the price of higher memory consumption. This option is available
2271 only on cnMIPS cores. Note that you will need a suitable Linux
2272 distribution to support this.
2273
Linus Torvalds1da177e2005-04-16 15:20:36 -07002274config PAGE_SIZE_64KB
2275 bool "64kB"
Paul Burton3b2db172017-06-05 11:21:27 -07002276 depends on !CPU_R3000 && !CPU_TX39XX
Linus Torvalds1da177e2005-04-16 15:20:36 -07002277 help
2278 Using 64kB page size will result in higher performance kernel at
2279 the price of higher memory consumption. This option is available on
2280 all non-R3000 family processor. Not that at the time of this
Ralf Baechle714bfad2006-05-17 14:04:30 +01002281 writing this option is still high experimental.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002282
2283endchoice
2284
David Daneyc9bace72010-10-11 14:52:45 -07002285config FORCE_MAX_ZONEORDER
2286 int "Maximum zone order"
Alex Smithe4362d12014-01-21 11:22:35 +00002287 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2288 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2289 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2290 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2291 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2292 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
David Daneyc9bace72010-10-11 14:52:45 -07002293 range 11 64
2294 default "11"
2295 help
2296 The kernel memory allocator divides physically contiguous memory
2297 blocks into "zones", where each zone is a power of two number of
2298 pages. This option selects the largest power of two that the kernel
2299 keeps in the memory allocator. If you need to allocate very large
2300 blocks of physically contiguous memory, then you may need to
2301 increase this value.
2302
2303 This config option is actually maximum order plus one. For example,
2304 a value of 11 means that the largest free memory block is 2^10 pages.
2305
2306 The page size is not necessarily 4KB. Keep this in mind
2307 when choosing a value for this option.
2308
Linus Torvalds1da177e2005-04-16 15:20:36 -07002309config BOARD_SCACHE
2310 bool
2311
2312config IP22_CPU_SCACHE
2313 bool
2314 select BOARD_SCACHE
2315
Chris Dearman9318c512006-06-20 17:15:20 +01002316#
2317# Support for a MIPS32 / MIPS64 style S-caches
2318#
2319config MIPS_CPU_SCACHE
2320 bool
2321 select BOARD_SCACHE
2322
Linus Torvalds1da177e2005-04-16 15:20:36 -07002323config R5000_CPU_SCACHE
2324 bool
2325 select BOARD_SCACHE
2326
2327config RM7000_CPU_SCACHE
2328 bool
2329 select BOARD_SCACHE
2330
2331config SIBYTE_DMA_PAGEOPS
2332 bool "Use DMA to clear/copy pages"
2333 depends on CPU_SB1
2334 help
2335 Instead of using the CPU to zero and copy pages, use a Data Mover
2336 channel. These DMA channels are otherwise unused by the standard
2337 SiByte Linux port. Seems to give a small performance benefit.
2338
2339config CPU_HAS_PREFETCH
Ralf Baechlec8094b52005-08-05 14:28:54 +00002340 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002341
Florian Fainelli3165c842012-01-31 18:18:43 +01002342config CPU_GENERIC_DUMP_TLB
2343 bool
Paul Burtonc2aeaae2019-07-22 22:00:03 +00002344 default y if !(CPU_R3000 || CPU_TX39XX)
Florian Fainelli3165c842012-01-31 18:18:43 +01002345
Paul Burtonc92e47e2018-11-07 23:14:02 +00002346config MIPS_FP_SUPPORT
Paul Burton183b40f2018-11-07 23:14:11 +00002347 bool "Floating Point support" if EXPERT
2348 default y
2349 help
2350 Select y to include support for floating point in the kernel
2351 including initialization of FPU hardware, FP context save & restore
2352 and emulation of an FPU where necessary. Without this support any
2353 userland program attempting to use floating point instructions will
2354 receive a SIGILL.
2355
2356 If you know that your userland will not attempt to use floating point
2357 instructions then you can say n here to shrink the kernel a little.
2358
2359 If unsure, say y.
Paul Burtonc92e47e2018-11-07 23:14:02 +00002360
Paul Burton97f7dcb2018-11-07 23:14:02 +00002361config CPU_R2300_FPU
2362 bool
Paul Burtonc92e47e2018-11-07 23:14:02 +00002363 depends on MIPS_FP_SUPPORT
Paul Burton97f7dcb2018-11-07 23:14:02 +00002364 default y if CPU_R3000 || CPU_TX39XX
2365
Paul Burton54746822019-08-31 15:40:43 +00002366config CPU_R3K_TLB
2367 bool
2368
Florian Fainelli91405eb2012-01-31 18:18:44 +01002369config CPU_R4K_FPU
2370 bool
Paul Burtonc92e47e2018-11-07 23:14:02 +00002371 depends on MIPS_FP_SUPPORT
Paul Burton97f7dcb2018-11-07 23:14:02 +00002372 default y if !CPU_R2300_FPU
Florian Fainelli91405eb2012-01-31 18:18:44 +01002373
Florian Fainelli62cedc42012-01-31 18:18:45 +01002374config CPU_R4K_CACHE_TLB
2375 bool
Paul Burton54746822019-08-31 15:40:43 +00002376 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
Florian Fainelli62cedc42012-01-31 18:18:45 +01002377
Ralf Baechle59d6ab82006-10-06 17:36:20 +01002378config MIPS_MT_SMP
Markos Chandrasa92b7f82014-04-08 11:59:10 +01002379 bool "MIPS MT SMP support (1 TC on each available VPE)"
Paul Burton5cbf9682017-08-07 16:01:16 -07002380 default y
Paul Burton527f1022017-08-07 16:18:04 -07002381 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
Ralf Baechle59d6ab82006-10-06 17:36:20 +01002382 select CPU_MIPSR2_IRQ_VI
Chris Dearmand725cf32007-05-08 14:05:39 +01002383 select CPU_MIPSR2_IRQ_EI
Steven J. Hillc080faa2013-10-04 16:23:28 -05002384 select SYNC_R4K
Ralf Baechle59d6ab82006-10-06 17:36:20 +01002385 select MIPS_MT
2386 select SMP
Ralf Baechle87353d82007-11-19 12:23:51 +00002387 select SMP_UP
Steven J. Hillc080faa2013-10-04 16:23:28 -05002388 select SYS_SUPPORTS_SMP
2389 select SYS_SUPPORTS_SCHED_SMT
Al Cooper399aaa22012-07-13 16:44:53 -04002390 select MIPS_PERF_SHARED_TC_COUNTERS
Ralf Baechle59d6ab82006-10-06 17:36:20 +01002391 help
Steven J. Hillc080faa2013-10-04 16:23:28 -05002392 This is a kernel model which is known as SMVP. This is supported
2393 on cores with the MT ASE and uses the available VPEs to implement
2394 virtual processors which supports SMP. This is equivalent to the
2395 Intel Hyperthreading feature. For further information go to
2396 <http://www.imgtec.com/mips/mips-multithreading.asp>.
Ralf Baechle59d6ab82006-10-06 17:36:20 +01002397
Ralf Baechlef41ae0b2006-06-05 17:24:46 +01002398config MIPS_MT
2399 bool
2400
Ralf Baechle0ab7aef2007-03-02 20:42:04 +00002401config SCHED_SMT
2402 bool "SMT (multithreading) scheduler support"
2403 depends on SYS_SUPPORTS_SCHED_SMT
2404 default n
2405 help
2406 SMT scheduler support improves the CPU scheduler's decision making
2407 when dealing with MIPS MT enabled cores at a cost of slightly
2408 increased overhead in some places. If unsure say N here.
2409
2410config SYS_SUPPORTS_SCHED_SMT
2411 bool
2412
Ralf Baechlef41ae0b2006-06-05 17:24:46 +01002413config SYS_SUPPORTS_MULTITHREADING
2414 bool
2415
Ralf Baechlef088fc82006-04-05 09:45:47 +01002416config MIPS_MT_FPAFF
2417 bool "Dynamic FPU affinity for FP-intensive threads"
Ralf Baechlef088fc82006-04-05 09:45:47 +01002418 default y
Ralf Baechleb6336482014-05-23 16:29:44 +02002419 depends on MIPS_MT_SMP
Ralf Baechle07cc0c92007-07-27 19:31:10 +01002420
Leonid Yegoshinb0a668f2014-12-03 15:47:03 +00002421config MIPSR2_TO_R6_EMULATOR
2422 bool "MIPS R2-to-R6 emulator"
Paul Burton9eaa9a82016-10-17 15:34:37 +01002423 depends on CPU_MIPSR6
Paul Burtonc92e47e2018-11-07 23:14:02 +00002424 depends on MIPS_FP_SUPPORT
Leonid Yegoshinb0a668f2014-12-03 15:47:03 +00002425 default y
2426 help
2427 Choose this option if you want to run non-R6 MIPS userland code.
2428 Even if you say 'Y' here, the emulator will still be disabled by
Markos Chandras07edf0d2015-03-10 12:30:56 +00002429 default. You can enable it using the 'mipsr2emu' kernel option.
Leonid Yegoshinb0a668f2014-12-03 15:47:03 +00002430 The only reason this is a build-time option is to save ~14K from the
2431 final kernel image.
Leonid Yegoshinb0a668f2014-12-03 15:47:03 +00002432
James Hoganf35764e2018-01-15 20:54:35 +00002433config SYS_SUPPORTS_VPE_LOADER
2434 bool
2435 depends on SYS_SUPPORTS_MULTITHREADING
2436 help
2437 Indicates that the platform supports the VPE loader, and provides
2438 physical_memsize.
2439
Ralf Baechle07cc0c92007-07-27 19:31:10 +01002440config MIPS_VPE_LOADER
2441 bool "VPE loader support."
James Hoganf35764e2018-01-15 20:54:35 +00002442 depends on SYS_SUPPORTS_VPE_LOADER && MODULES
Ralf Baechle07cc0c92007-07-27 19:31:10 +01002443 select CPU_MIPSR2_IRQ_VI
2444 select CPU_MIPSR2_IRQ_EI
Ralf Baechle07cc0c92007-07-27 19:31:10 +01002445 select MIPS_MT
2446 help
2447 Includes a loader for loading an elf relocatable object
2448 onto another VPE and running it.
Ralf Baechlef088fc82006-04-05 09:45:47 +01002449
Deng-Cheng Zhu17a1d522013-10-30 15:52:07 -05002450config MIPS_VPE_LOADER_CMP
2451 bool
2452 default "y"
2453 depends on MIPS_VPE_LOADER && MIPS_CMP
2454
Deng-Cheng Zhu1a2a6d72013-10-30 15:52:06 -05002455config MIPS_VPE_LOADER_MT
2456 bool
2457 default "y"
2458 depends on MIPS_VPE_LOADER && !MIPS_CMP
2459
Ralf Baechlee01402b2005-07-14 15:57:16 +00002460config MIPS_VPE_LOADER_TOM
2461 bool "Load VPE program into memory hidden from linux"
2462 depends on MIPS_VPE_LOADER
2463 default y
2464 help
2465 The loader can use memory that is present but has been hidden from
2466 Linux using the kernel command line option "mem=xxMB". It's up to
2467 you to ensure the amount you put in the option and the space your
2468 program requires is less or equal to the amount physically present.
2469
Ralf Baechlee01402b2005-07-14 15:57:16 +00002470config MIPS_VPE_APSP_API
Ralf Baechle5e83d432005-10-29 19:32:41 +01002471 bool "Enable support for AP/SP API (RTLX)"
2472 depends on MIPS_VPE_LOADER
Ralf Baechlee01402b2005-07-14 15:57:16 +00002473
Deng-Cheng Zhuda615cf2014-01-01 16:29:03 +01002474config MIPS_VPE_APSP_API_CMP
2475 bool
2476 default "y"
2477 depends on MIPS_VPE_APSP_API && MIPS_CMP
2478
Deng-Cheng Zhu2c973ef2014-01-01 16:26:46 +01002479config MIPS_VPE_APSP_API_MT
2480 bool
2481 default "y"
2482 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2483
Ralf Baechle4a16ff42008-10-04 00:06:29 +01002484config MIPS_CMP
Paul Burton5cac93b2014-01-15 10:32:00 +00002485 bool "MIPS CMP framework support (DEPRECATED)"
Markos Chandras56763192015-07-09 10:40:38 +01002486 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
Markos Chandrasb10b43b2014-07-22 09:29:34 +01002487 select SMP
Tim Andersoneb9b5142009-06-17 16:40:34 -07002488 select SYNC_R4K
Markos Chandrasb10b43b2014-07-22 09:29:34 +01002489 select SYS_SUPPORTS_SMP
Ralf Baechle4a16ff42008-10-04 00:06:29 +01002490 select WEAK_ORDERING
2491 default n
2492 help
Paul Burton044505c2014-01-15 10:31:58 +00002493 Select this if you are using a bootloader which implements the "CMP
2494 framework" protocol (ie. YAMON) and want your kernel to make use of
2495 its ability to start secondary CPUs.
Ralf Baechle4a16ff42008-10-04 00:06:29 +01002496
Paul Burton5cac93b2014-01-15 10:32:00 +00002497 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2498 instead of this.
2499
Paul Burton0ee958e2014-01-15 10:31:53 +00002500config MIPS_CPS
2501 bool "MIPS Coherent Processing System support"
Paul Burton5a3e7c02016-02-03 03:15:33 +00002502 depends on SYS_SUPPORTS_MIPS_CPS
Paul Burton0ee958e2014-01-15 10:31:53 +00002503 select MIPS_CM
Paul Burton1d8f1f52014-04-14 14:13:57 +01002504 select MIPS_CPS_PM if HOTPLUG_CPU
Paul Burton0ee958e2014-01-15 10:31:53 +00002505 select SMP
2506 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
Paul Burton1d8f1f52014-04-14 14:13:57 +01002507 select SYS_SUPPORTS_HOTPLUG_CPU
Paul Burtonc8b77122017-06-02 14:48:52 -07002508 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
Paul Burton0ee958e2014-01-15 10:31:53 +00002509 select SYS_SUPPORTS_SMP
2510 select WEAK_ORDERING
2511 help
2512 Select this if you wish to run an SMP kernel across multiple cores
2513 within a MIPS Coherent Processing System. When this option is
2514 enabled the kernel will probe for other cores and boot them with
2515 no external assistance. It is safe to enable this when hardware
2516 support is unavailable.
2517
Paul Burton3179d372014-04-14 11:00:56 +01002518config MIPS_CPS_PM
Markos Chandras39a59592014-09-18 16:09:49 +01002519 depends on MIPS_CPS
Paul Burton3179d372014-04-14 11:00:56 +01002520 bool
2521
Paul Burton9f98f3d2014-01-15 10:31:51 +00002522config MIPS_CM
2523 bool
Paul Burton3c9b4162017-08-12 19:49:42 -07002524 select MIPS_CPC
Paul Burton9f98f3d2014-01-15 10:31:51 +00002525
Paul Burton9c38cf42014-01-15 10:31:52 +00002526config MIPS_CPC
2527 bool
Ralf Baechle26009902006-04-05 09:45:45 +01002528
Linus Torvalds1da177e2005-04-16 15:20:36 -07002529config SB1_PASS_2_WORKAROUNDS
2530 bool
2531 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2532 default y
2533
2534config SB1_PASS_2_1_WORKAROUNDS
2535 bool
2536 depends on CPU_SB1 && CPU_SB1_PASS_2
2537 default y
2538
Markos Chandras9e2b5372014-07-21 08:46:14 +01002539choice
2540 prompt "SmartMIPS or microMIPS ASE support"
2541
2542config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2543 bool "None"
2544 help
2545 Select this if you want neither microMIPS nor SmartMIPS support
2546
Franck Bui-Huu9693a852007-02-02 17:41:47 +01002547config CPU_HAS_SMARTMIPS
2548 depends on SYS_SUPPORTS_SMARTMIPS
Markos Chandras9e2b5372014-07-21 08:46:14 +01002549 bool "SmartMIPS"
Franck Bui-Huu9693a852007-02-02 17:41:47 +01002550 help
2551 SmartMIPS is a extension of the MIPS32 architecture aimed at
2552 increased security at both hardware and software level for
2553 smartcards. Enabling this option will allow proper use of the
2554 SmartMIPS instructions by Linux applications. However a kernel with
2555 this option will not work on a MIPS core without SmartMIPS core. If
2556 you don't know you probably don't have SmartMIPS and should say N
2557 here.
2558
Steven J. Hillbce86082013-03-25 13:27:11 -05002559config CPU_MICROMIPS
Leonid Yegoshin7fd08ca2014-10-27 10:34:11 +00002560 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
Markos Chandras9e2b5372014-07-21 08:46:14 +01002561 bool "microMIPS"
Steven J. Hillbce86082013-03-25 13:27:11 -05002562 help
2563 When this option is enabled the kernel will be built using the
2564 microMIPS ISA
2565
Markos Chandras9e2b5372014-07-21 08:46:14 +01002566endchoice
2567
Paul Burtona5e9a692014-01-27 15:23:10 +00002568config CPU_HAS_MSA
Paul Burton0ce34172015-07-27 12:58:27 -07002569 bool "Support for the MIPS SIMD Architecture"
Paul Burtona5e9a692014-01-27 15:23:10 +00002570 depends on CPU_SUPPORTS_MSA
Paul Burtonc92e47e2018-11-07 23:14:02 +00002571 depends on MIPS_FP_SUPPORT
Paul Burton2a6cb662014-07-11 16:47:14 +01002572 depends on 64BIT || MIPS_O32_FP64_SUPPORT
Paul Burtona5e9a692014-01-27 15:23:10 +00002573 help
2574 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2575 and a set of SIMD instructions to operate on them. When this option
Paul Burton1db1af82014-01-27 15:23:11 +00002576 is enabled the kernel will support allocating & switching MSA
2577 vector register contexts. If you know that your kernel will only be
2578 running on CPUs which do not support MSA or that your userland will
2579 not be making use of it then you may wish to say N here to reduce
2580 the size & complexity of your kernel.
Paul Burtona5e9a692014-01-27 15:23:10 +00002581
2582 If unsure, say Y.
2583
Linus Torvalds1da177e2005-04-16 15:20:36 -07002584config CPU_HAS_WB
Ralf Baechlef7062dd2006-04-24 14:58:53 +01002585 bool
Ralf Baechlee01402b2005-07-14 15:57:16 +00002586
Kevin Cernekeedf0ac8a2011-11-16 01:25:45 +00002587config XKS01
2588 bool
2589
Jiaxun Yangba9196d2020-01-13 18:14:59 +08002590config CPU_HAS_DIEI
2591 depends on !CPU_DIEI_BROKEN
2592 bool
2593
2594config CPU_DIEI_BROKEN
2595 bool
2596
Florian Fainelli8256b172016-02-09 12:55:51 -08002597config CPU_HAS_RIXI
2598 bool
2599
Alexander Lobakin18d84e2e2020-01-22 13:58:50 +03002600config CPU_NO_LOAD_STORE_LR
Yasha Cherikovsky932afde2018-09-26 14:16:15 +03002601 bool
2602 help
Alexander Lobakin18d84e2e2020-01-22 13:58:50 +03002603 CPU lacks support for unaligned load and store instructions:
Yasha Cherikovsky932afde2018-09-26 14:16:15 +03002604 LWL, LWR, SWL, SWR (Load/store word left/right).
Alexander Lobakin18d84e2e2020-01-22 13:58:50 +03002605 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2606 systems).
Yasha Cherikovsky932afde2018-09-26 14:16:15 +03002607
Ralf Baechlef41ae0b2006-06-05 17:24:46 +01002608#
2609# Vectored interrupt mode is an R2 feature
2610#
Ralf Baechlee01402b2005-07-14 15:57:16 +00002611config CPU_MIPSR2_IRQ_VI
Ralf Baechlef41ae0b2006-06-05 17:24:46 +01002612 bool
Ralf Baechlee01402b2005-07-14 15:57:16 +00002613
Ralf Baechlef41ae0b2006-06-05 17:24:46 +01002614#
2615# Extended interrupt mode is an R2 feature
2616#
Ralf Baechlee01402b2005-07-14 15:57:16 +00002617config CPU_MIPSR2_IRQ_EI
Ralf Baechlef41ae0b2006-06-05 17:24:46 +01002618 bool
Ralf Baechlee01402b2005-07-14 15:57:16 +00002619
Linus Torvalds1da177e2005-04-16 15:20:36 -07002620config CPU_HAS_SYNC
2621 bool
2622 depends on !CPU_R3000
2623 default y
2624
2625#
Maciej W. Rozycki20d60d92007-10-23 12:43:11 +01002626# CPU non-features
2627#
2628config CPU_DADDI_WORKAROUNDS
2629 bool
2630
2631config CPU_R4000_WORKAROUNDS
2632 bool
2633 select CPU_R4400_WORKAROUNDS
2634
2635config CPU_R4400_WORKAROUNDS
2636 bool
2637
Paul Burton071d2f02019-10-01 23:04:32 +00002638config CPU_R4X00_BUGS64
2639 bool
2640 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2641
Paul Burton4edf00a2016-05-06 14:36:23 +01002642config MIPS_ASID_SHIFT
2643 int
2644 default 6 if CPU_R3000 || CPU_TX39XX
Paul Burton4edf00a2016-05-06 14:36:23 +01002645 default 0
2646
2647config MIPS_ASID_BITS
2648 int
Paul Burton2db003a2016-05-06 14:36:24 +01002649 default 0 if MIPS_ASID_BITS_VARIABLE
Paul Burton4edf00a2016-05-06 14:36:23 +01002650 default 6 if CPU_R3000 || CPU_TX39XX
2651 default 8
2652
Paul Burton2db003a2016-05-06 14:36:24 +01002653config MIPS_ASID_BITS_VARIABLE
2654 bool
2655
Marcin Nowakowski4a5dc512018-02-09 22:11:06 +00002656config MIPS_CRC_SUPPORT
2657 bool
2658
Maciej W. Rozycki20d60d92007-10-23 12:43:11 +01002659#
Linus Torvalds1da177e2005-04-16 15:20:36 -07002660# - Highmem only makes sense for the 32-bit kernel.
2661# - The current highmem code will only work properly on physically indexed
2662# caches such as R3000, SB1, R7000 or those that look like they're virtually
2663# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2664# moment we protect the user and offer the highmem option only on machines
2665# where it's known to be safe. This will not offer highmem on a few systems
2666# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2667# indexed CPUs but we're playing safe.
Ralf Baechle797798c2005-08-10 15:17:11 +00002668# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2669# know they might have memory configurations that could make use of highmem
2670# support.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002671#
2672config HIGHMEM
2673 bool "High Memory Support"
Leonid Yegoshina6e18782013-12-03 10:22:26 +00002674 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
Ralf Baechle797798c2005-08-10 15:17:11 +00002675
2676config CPU_SUPPORTS_HIGHMEM
2677 bool
2678
2679config SYS_SUPPORTS_HIGHMEM
2680 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002681
Franck Bui-Huu9693a852007-02-02 17:41:47 +01002682config SYS_SUPPORTS_SMARTMIPS
2683 bool
2684
Steven J. Hilla6a48342013-02-05 16:52:02 -06002685config SYS_SUPPORTS_MICROMIPS
2686 bool
2687
Ralf Baechle377cb1b2014-04-29 01:49:24 +02002688config SYS_SUPPORTS_MIPS16
2689 bool
2690 help
2691 This option must be set if a kernel might be executed on a MIPS16-
2692 enabled CPU even if MIPS16 is not actually being used. In other
2693 words, it makes the kernel MIPS16-tolerant.
2694
Paul Burtona5e9a692014-01-27 15:23:10 +00002695config CPU_SUPPORTS_MSA
2696 bool
2697
Yoichi Yuasab4819b52005-06-25 14:54:31 -07002698config ARCH_FLATMEM_ENABLE
2699 def_bool y
Jiaxun Yang268a2d62019-10-20 22:43:13 +08002700 depends on !NUMA && !CPU_LOONGSON2EF
Yoichi Yuasab4819b52005-06-25 14:54:31 -07002701
Atsushi Nemotob1c6cd42006-07-03 00:09:47 +09002702config ARCH_SPARSEMEM_ENABLE
2703 bool
Mike Rapoport397dc002019-09-16 14:13:10 +03002704 select SPARSEMEM_STATIC if !SGI_IP27
Atsushi Nemoto31473742006-07-03 00:09:47 +09002705
Ralf Baechled8cb4e12006-06-11 23:03:08 +01002706config NUMA
2707 bool "NUMA Support"
2708 depends on SYS_SUPPORTS_NUMA
2709 help
2710 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2711 Access). This option improves performance on systems with more
2712 than two nodes; on two node systems it is generally better to
Randy Dunlap172a37e2020-01-31 17:55:43 -08002713 leave it disabled; on single node systems leave this option
Ralf Baechled8cb4e12006-06-11 23:03:08 +01002714 disabled.
2715
2716config SYS_SUPPORTS_NUMA
2717 bool
2718
Thomas Bogendoerferf3c560a2020-01-09 13:23:31 +01002719config HAVE_SETUP_PER_CPU_AREA
2720 def_bool y
2721 depends on NUMA
2722
2723config NEED_PER_CPU_EMBED_FIRST_CHUNK
2724 def_bool y
2725 depends on NUMA
2726
Matt Redfearn8c530ea2016-03-31 10:05:39 +01002727config RELOCATABLE
2728 bool "Relocatable kernel"
Serge Seminab7c01f2020-05-21 17:07:14 +03002729 depends on SYS_SUPPORTS_RELOCATABLE
2730 depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
2731 CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
2732 CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
Serge Semin281e3ae2020-05-21 17:07:15 +03002733 CPU_P5600 || CAVIUM_OCTEON_SOC
Matt Redfearn8c530ea2016-03-31 10:05:39 +01002734 help
2735 This builds a kernel image that retains relocation information
2736 so it can be loaded someplace besides the default 1MB.
2737 The relocations make the kernel binary about 15% larger,
2738 but are discarded at runtime
2739
Matt Redfearn069fd762016-03-31 10:05:34 +01002740config RELOCATION_TABLE_SIZE
2741 hex "Relocation table size"
2742 depends on RELOCATABLE
2743 range 0x0 0x01000000
2744 default "0x00100000"
2745 ---help---
2746 A table of relocation data will be appended to the kernel binary
2747 and parsed at boot to fix up the relocated kernel.
2748
2749 This option allows the amount of space reserved for the table to be
2750 adjusted, although the default of 1Mb should be ok in most cases.
2751
2752 The build will fail and a valid size suggested if this is too small.
2753
2754 If unsure, leave at the default value.
2755
Matt Redfearn405bc8f2016-03-31 10:05:41 +01002756config RANDOMIZE_BASE
2757 bool "Randomize the address of the kernel image"
2758 depends on RELOCATABLE
2759 ---help---
Enrico Weigelt, metux IT consult371a4152019-03-11 16:54:27 +01002760 Randomizes the physical and virtual address at which the
2761 kernel image is loaded, as a security feature that
2762 deters exploit attempts relying on knowledge of the location
2763 of kernel internals.
Matt Redfearn405bc8f2016-03-31 10:05:41 +01002764
Enrico Weigelt, metux IT consult371a4152019-03-11 16:54:27 +01002765 Entropy is generated using any coprocessor 0 registers available.
Matt Redfearn405bc8f2016-03-31 10:05:41 +01002766
Enrico Weigelt, metux IT consult371a4152019-03-11 16:54:27 +01002767 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
Matt Redfearn405bc8f2016-03-31 10:05:41 +01002768
Enrico Weigelt, metux IT consult371a4152019-03-11 16:54:27 +01002769 If unsure, say N.
Matt Redfearn405bc8f2016-03-31 10:05:41 +01002770
2771config RANDOMIZE_BASE_MAX_OFFSET
2772 hex "Maximum kASLR offset" if EXPERT
2773 depends on RANDOMIZE_BASE
2774 range 0x0 0x40000000 if EVA || 64BIT
2775 range 0x0 0x08000000
2776 default "0x01000000"
2777 ---help---
2778 When kASLR is active, this provides the maximum offset that will
2779 be applied to the kernel image. It should be set according to the
2780 amount of physical RAM available in the target system minus
2781 PHYSICAL_START and must be a power of 2.
2782
2783 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2784 EVA or 64-bit. The default is 16Mb.
2785
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07002786config NODES_SHIFT
2787 int
2788 default "6"
2789 depends on NEED_MULTIPLE_NODES
2790
Deng-Cheng Zhu14f70012010-10-12 19:37:22 +08002791config HW_PERF_EVENTS
2792 bool "Enable hardware performance counter support for perf events"
Jiaxun Yang268a2d62019-10-20 22:43:13 +08002793 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
Deng-Cheng Zhu14f70012010-10-12 19:37:22 +08002794 default y
2795 help
2796 Enable hardware performance counter support for perf events. If
2797 disabled, perf events will use software events only.
2798
Tiezhu Yangbe8fa1c2020-02-05 12:08:33 +08002799config DMI
2800 bool "Enable DMI scanning"
2801 depends on MACH_LOONGSON64
2802 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2803 default y
2804 help
2805 Enabled scanning of DMI to identify machine quirks. Say Y
2806 here unless you have verified that your setup is not
2807 affected by entries in the DMI blacklist. Required by PNP
2808 BIOS code.
2809
Linus Torvalds1da177e2005-04-16 15:20:36 -07002810config SMP
2811 bool "Multi-Processing support"
Ralf Baechlee73ea272006-06-04 11:51:46 +01002812 depends on SYS_SUPPORTS_SMP
2813 help
Linus Torvalds1da177e2005-04-16 15:20:36 -07002814 This enables support for systems with more than one CPU. If you have
Robert Graffham4a474152014-01-23 15:55:29 -08002815 a system with only one CPU, say N. If you have a system with more
2816 than one CPU, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002817
Robert Graffham4a474152014-01-23 15:55:29 -08002818 If you say N here, the kernel will run on uni- and multiprocessor
Linus Torvalds1da177e2005-04-16 15:20:36 -07002819 machines, but will use only one CPU of a multiprocessor machine. If
2820 you say Y here, the kernel will run on many, but not all,
Robert Graffham4a474152014-01-23 15:55:29 -08002821 uniprocessor machines. On a uniprocessor machine, the kernel
Linus Torvalds1da177e2005-04-16 15:20:36 -07002822 will run faster if you say N here.
2823
2824 People using multiprocessor machines who say Y here should also say
2825 Y to "Enhanced Real Time Clock Support", below.
2826
Adrian Bunk03502fa2008-02-03 15:50:21 +02002827 See also the SMP-HOWTO available at
2828 <http://www.tldp.org/docs.html#howto>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002829
2830 If you don't know what to do here, say N.
2831
Matt Redfearn7840d612016-07-07 08:50:40 +01002832config HOTPLUG_CPU
2833 bool "Support for hot-pluggable CPUs"
2834 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2835 help
2836 Say Y here to allow turning CPUs off and on. CPUs can be
2837 controlled through /sys/devices/system/cpu.
2838 (Note: power management support will enable this option
2839 automatically on SMP systems. )
2840 Say N if you want to disable CPU hotplug.
2841
Ralf Baechle87353d82007-11-19 12:23:51 +00002842config SMP_UP
2843 bool
2844
Ralf Baechle4a16ff42008-10-04 00:06:29 +01002845config SYS_SUPPORTS_MIPS_CMP
2846 bool
2847
Paul Burton0ee958e2014-01-15 10:31:53 +00002848config SYS_SUPPORTS_MIPS_CPS
2849 bool
2850
Ralf Baechlee73ea272006-06-04 11:51:46 +01002851config SYS_SUPPORTS_SMP
2852 bool
2853
Ralf Baechle130e2fb2007-02-06 16:53:15 +00002854config NR_CPUS_DEFAULT_4
2855 bool
2856
2857config NR_CPUS_DEFAULT_8
2858 bool
2859
2860config NR_CPUS_DEFAULT_16
2861 bool
2862
2863config NR_CPUS_DEFAULT_32
2864 bool
2865
2866config NR_CPUS_DEFAULT_64
2867 bool
2868
Linus Torvalds1da177e2005-04-16 15:20:36 -07002869config NR_CPUS
Jayachandran Ca91796a2014-04-29 20:07:40 +05302870 int "Maximum number of CPUs (2-256)"
2871 range 2 256
Linus Torvalds1da177e2005-04-16 15:20:36 -07002872 depends on SMP
Ralf Baechle130e2fb2007-02-06 16:53:15 +00002873 default "4" if NR_CPUS_DEFAULT_4
2874 default "8" if NR_CPUS_DEFAULT_8
2875 default "16" if NR_CPUS_DEFAULT_16
2876 default "32" if NR_CPUS_DEFAULT_32
2877 default "64" if NR_CPUS_DEFAULT_64
Linus Torvalds1da177e2005-04-16 15:20:36 -07002878 help
2879 This allows you to specify the maximum number of CPUs which this
2880 kernel will support. The maximum supported value is 32 for 32-bit
2881 kernel and 64 for 64-bit kernels; the minimum value which makes
Atsushi Nemoto72ede9b2007-03-18 01:01:39 +09002882 sense is 1 for Qemu (useful only for kernel debugging purposes)
2883 and 2 for all others.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002884
2885 This is purely to save memory - each supported CPU adds
Atsushi Nemoto72ede9b2007-03-18 01:01:39 +09002886 approximately eight kilobytes to the kernel image. For best
2887 performance should round up your number of processors to the next
2888 power of two.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002889
Al Cooper399aaa22012-07-13 16:44:53 -04002890config MIPS_PERF_SHARED_TC_COUNTERS
2891 bool
2892
David Daney7820b842017-09-28 12:34:04 -05002893config MIPS_NR_CPU_NR_MAP_1024
2894 bool
2895
2896config MIPS_NR_CPU_NR_MAP
2897 int
2898 depends on SMP
2899 default 1024 if MIPS_NR_CPU_NR_MAP_1024
2900 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2901
Atsushi Nemoto1723b4a2006-06-20 00:19:13 +09002902#
2903# Timer Interrupt Frequency Configuration
2904#
2905
2906choice
2907 prompt "Timer frequency"
2908 default HZ_250
2909 help
Enrico Weigelt, metux IT consult371a4152019-03-11 16:54:27 +01002910 Allows the configuration of the timer frequency.
Atsushi Nemoto1723b4a2006-06-20 00:19:13 +09002911
Paul Burton67596572015-09-22 10:16:39 -07002912 config HZ_24
2913 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2914
Atsushi Nemoto1723b4a2006-06-20 00:19:13 +09002915 config HZ_48
Ralf Baechle0f873582008-02-25 16:55:29 +00002916 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
Atsushi Nemoto1723b4a2006-06-20 00:19:13 +09002917
2918 config HZ_100
2919 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2920
2921 config HZ_128
2922 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2923
2924 config HZ_250
2925 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2926
2927 config HZ_256
2928 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2929
2930 config HZ_1000
2931 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2932
2933 config HZ_1024
2934 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2935
2936endchoice
2937
Paul Burton67596572015-09-22 10:16:39 -07002938config SYS_SUPPORTS_24HZ
2939 bool
2940
Atsushi Nemoto1723b4a2006-06-20 00:19:13 +09002941config SYS_SUPPORTS_48HZ
2942 bool
2943
2944config SYS_SUPPORTS_100HZ
2945 bool
2946
2947config SYS_SUPPORTS_128HZ
2948 bool
2949
2950config SYS_SUPPORTS_250HZ
2951 bool
2952
2953config SYS_SUPPORTS_256HZ
2954 bool
2955
2956config SYS_SUPPORTS_1000HZ
2957 bool
2958
2959config SYS_SUPPORTS_1024HZ
2960 bool
2961
2962config SYS_SUPPORTS_ARBIT_HZ
2963 bool
Paul Burton67596572015-09-22 10:16:39 -07002964 default y if !SYS_SUPPORTS_24HZ && \
2965 !SYS_SUPPORTS_48HZ && \
2966 !SYS_SUPPORTS_100HZ && \
2967 !SYS_SUPPORTS_128HZ && \
2968 !SYS_SUPPORTS_250HZ && \
2969 !SYS_SUPPORTS_256HZ && \
2970 !SYS_SUPPORTS_1000HZ && \
Atsushi Nemoto1723b4a2006-06-20 00:19:13 +09002971 !SYS_SUPPORTS_1024HZ
2972
2973config HZ
2974 int
Paul Burton67596572015-09-22 10:16:39 -07002975 default 24 if HZ_24
Atsushi Nemoto1723b4a2006-06-20 00:19:13 +09002976 default 48 if HZ_48
2977 default 100 if HZ_100
2978 default 128 if HZ_128
2979 default 250 if HZ_250
2980 default 256 if HZ_256
2981 default 1000 if HZ_1000
2982 default 1024 if HZ_1024
2983
Deng-Cheng Zhu96685b12015-03-07 10:30:19 -08002984config SCHED_HRTICK
2985 def_bool HIGH_RES_TIMERS
2986
Atsushi Nemotoea6e9422007-01-16 23:29:11 +09002987config KEXEC
Kees Cook7d607172013-01-16 18:53:19 -08002988 bool "Kexec system call"
Dave Young2965faa2015-09-09 15:38:55 -07002989 select KEXEC_CORE
Atsushi Nemotoea6e9422007-01-16 23:29:11 +09002990 help
2991 kexec is a system call that implements the ability to shutdown your
2992 current kernel, and to start another kernel. It is like a reboot
David Sterba3dde6ad2007-05-09 07:12:20 +02002993 but it is independent of the system firmware. And like a reboot
Atsushi Nemotoea6e9422007-01-16 23:29:11 +09002994 you can start any kernel with it, not just Linux.
2995
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002996 The name comes from the similarity to the exec system call.
Atsushi Nemotoea6e9422007-01-16 23:29:11 +09002997
2998 It is an ongoing process to be certain the hardware in a machine
2999 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02003000 initially work for you. As of this writing the exact hardware
3001 interface is strongly in flux, so no good recommendation can be
3002 made.
Atsushi Nemotoea6e9422007-01-16 23:29:11 +09003003
Ralf Baechle7aa1c8f2012-10-11 18:14:58 +02003004config CRASH_DUMP
Marcin Nowakowskibff323d2016-12-02 09:58:29 +01003005 bool "Kernel crash dumps"
3006 help
Ralf Baechle7aa1c8f2012-10-11 18:14:58 +02003007 Generate crash dump after being started by kexec.
3008 This should be normally only set in special crash dump kernels
3009 which are loaded in the main kernel with kexec-tools into
3010 a specially reserved region and then later executed after
3011 a crash by kdump/kexec. The crash dump kernel must be compiled
3012 to a memory address not used by the main kernel or firmware using
3013 PHYSICAL_START.
3014
3015config PHYSICAL_START
Marcin Nowakowskibff323d2016-12-02 09:58:29 +01003016 hex "Physical address where the kernel is loaded"
Maciej W. Rozycki8bda3e22018-03-26 19:11:51 +01003017 default "0xffffffff84000000"
Marcin Nowakowskibff323d2016-12-02 09:58:29 +01003018 depends on CRASH_DUMP
3019 help
Ralf Baechle7aa1c8f2012-10-11 18:14:58 +02003020 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
3021 If you plan to use kernel for capturing the crash dump change
3022 this value to start of the reserved region (the "X" value as
3023 specified in the "crashkernel=YM@XM" command line boot parameter
3024 passed to the panic-ed kernel).
3025
Atsushi Nemotoea6e9422007-01-16 23:29:11 +09003026config SECCOMP
3027 bool "Enable seccomp to safely compute untrusted bytecode"
Ralf Baechle293c5bd2007-07-25 16:19:33 +01003028 depends on PROC_FS
Atsushi Nemotoea6e9422007-01-16 23:29:11 +09003029 default y
3030 help
3031 This kernel feature is useful for number crunching applications
3032 that may need to compute untrusted bytecode during their
3033 execution. By using pipes or other transports made available to
3034 the process as file descriptors supporting the read/write
3035 syscalls, it's possible to isolate those applications in
3036 their own address space using seccomp. Once seccomp is
3037 enabled via /proc/<pid>/seccomp, it cannot be disabled
3038 and the task is only allowed to execute a few safe syscalls
3039 defined by each seccomp mode.
3040
3041 If unsure, say Y. Only embedded should say N here.
3042
Paul Burton597ce172013-11-22 13:12:07 +00003043config MIPS_O32_FP64_SUPPORT
Paul Burtonb7f1e272018-11-07 23:13:58 +00003044 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
Paul Burton597ce172013-11-22 13:12:07 +00003045 depends on 32BIT || MIPS32_O32
Paul Burton597ce172013-11-22 13:12:07 +00003046 help
3047 When this is enabled, the kernel will support use of 64-bit floating
3048 point registers with binaries using the O32 ABI along with the
3049 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
3050 32-bit MIPS systems this support is at the cost of increasing the
3051 size and complexity of the compiled FPU emulator. Thus if you are
3052 running a MIPS32 system and know that none of your userland binaries
3053 will require 64-bit floating point, you may wish to reduce the size
3054 of your kernel & potentially improve FP emulation performance by
3055 saying N here.
3056
Paul Burton06e2e882014-02-14 17:55:18 +00003057 Although binutils currently supports use of this flag the details
3058 concerning its effect upon the O32 ABI in userland are still being
3059 worked on. In order to avoid userland becoming dependant upon current
3060 behaviour before the details have been finalised, this option should
3061 be considered experimental and only enabled by those working upon
3062 said details.
3063
3064 If unsure, say N.
Paul Burton597ce172013-11-22 13:12:07 +00003065
Dezhong Diaof2ffa5a2010-10-13 00:52:46 -06003066config USE_OF
Jonas Gorski0b3e06f2012-09-18 11:28:54 +02003067 bool
Dezhong Diaof2ffa5a2010-10-13 00:52:46 -06003068 select OF
Stephen Neuendorffere6ce1322010-11-18 15:54:56 -08003069 select OF_EARLY_FLATTREE
Grant Likelyabd23632012-02-24 08:07:06 -07003070 select IRQ_DOMAIN
Dezhong Diaof2ffa5a2010-10-13 00:52:46 -06003071
Dengcheng Zhu2fe8ea32018-09-11 14:49:24 -07003072config UHI_BOOT
3073 bool
3074
Andrew Bresticker7fafb062014-08-21 13:04:20 -07003075config BUILTIN_DTB
3076 bool
3077
Jonas Gorski1da8f172015-04-12 12:24:58 +02003078choice
Jonas Gorski5b24d522015-10-12 13:13:01 +02003079 prompt "Kernel appended dtb support" if USE_OF
Jonas Gorski1da8f172015-04-12 12:24:58 +02003080 default MIPS_NO_APPENDED_DTB
3081
3082 config MIPS_NO_APPENDED_DTB
3083 bool "None"
3084 help
3085 Do not enable appended dtb support.
3086
Aaro Koskinen87db5372015-09-11 17:46:14 +03003087 config MIPS_ELF_APPENDED_DTB
3088 bool "vmlinux"
3089 help
3090 With this option, the boot code will look for a device tree binary
3091 DTB) included in the vmlinux ELF section .appended_dtb. By default
3092 it is empty and the DTB can be appended using binutils command
3093 objcopy:
3094
3095 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3096
3097 This is meant as a backward compatiblity convenience for those
3098 systems with a bootloader that can't be upgraded to accommodate
3099 the documented boot protocol using a device tree.
3100
Jonas Gorski1da8f172015-04-12 12:24:58 +02003101 config MIPS_RAW_APPENDED_DTB
Jonas Gorskib8f54f22016-06-20 11:27:36 +02003102 bool "vmlinux.bin or vmlinuz.bin"
Jonas Gorski1da8f172015-04-12 12:24:58 +02003103 help
3104 With this option, the boot code will look for a device tree binary
Jonas Gorskib8f54f22016-06-20 11:27:36 +02003105 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
Jonas Gorski1da8f172015-04-12 12:24:58 +02003106 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3107
3108 This is meant as a backward compatibility convenience for those
3109 systems with a bootloader that can't be upgraded to accommodate
3110 the documented boot protocol using a device tree.
3111
3112 Beware that there is very little in terms of protection against
3113 this option being confused by leftover garbage in memory that might
3114 look like a DTB header after a reboot if no actual DTB is appended
3115 to vmlinux.bin. Do not leave this option active in a production kernel
3116 if you don't intend to always append a DTB.
3117endchoice
3118
Jonas Gorski20249722015-10-12 13:13:02 +02003119choice
3120 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
Jonas Gorski2bcef9b2015-10-12 13:13:03 +02003121 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
Jiaxun Yang87fcfa72020-03-25 11:55:02 +08003122 !MACH_LOONGSON64 && !MIPS_MALTA && \
Jonas Gorski2bcef9b2015-10-12 13:13:03 +02003123 !CAVIUM_OCTEON_SOC
Jonas Gorski20249722015-10-12 13:13:02 +02003124 default MIPS_CMDLINE_FROM_BOOTLOADER
3125
3126 config MIPS_CMDLINE_FROM_DTB
3127 depends on USE_OF
3128 bool "Dtb kernel arguments if available"
3129
3130 config MIPS_CMDLINE_DTB_EXTEND
3131 depends on USE_OF
3132 bool "Extend dtb kernel arguments with bootloader arguments"
3133
3134 config MIPS_CMDLINE_FROM_BOOTLOADER
3135 bool "Bootloader kernel arguments if available"
Rabin Vincented47e152016-04-28 11:03:09 +02003136
3137 config MIPS_CMDLINE_BUILTIN_EXTEND
3138 depends on CMDLINE_BOOL
3139 bool "Extend builtin kernel arguments with bootloader arguments"
Jonas Gorski20249722015-10-12 13:13:02 +02003140endchoice
3141
Ralf Baechle5e83d432005-10-29 19:32:41 +01003142endmenu
3143
Atsushi Nemoto1df0f0f2006-09-26 23:44:01 +09003144config LOCKDEP_SUPPORT
3145 bool
3146 default y
3147
3148config STACKTRACE_SUPPORT
3149 bool
3150 default y
3151
Kirill A. Shutemova728ab52015-04-14 15:45:51 -07003152config PGTABLE_LEVELS
3153 int
Alex Belits3377e222017-02-16 17:27:34 -08003154 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
Kirill A. Shutemova728ab52015-04-14 15:45:51 -07003155 default 3 if 64BIT && !PAGE_SIZE_64KB
3156 default 2
3157
Paul Burton6c359eb2018-07-27 18:23:20 -07003158config MIPS_AUTO_PFN_OFFSET
3159 bool
3160
Linus Torvalds1da177e2005-04-16 15:20:36 -07003161menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3162
Paul Burtonc5611df2016-10-05 18:18:12 +01003163config PCI_DRIVERS_GENERIC
Christoph Hellwig2eac9c22018-11-15 20:05:33 +01003164 select PCI_DOMAINS_GENERIC if PCI
Paul Burtonc5611df2016-10-05 18:18:12 +01003165 bool
3166
3167config PCI_DRIVERS_LEGACY
3168 def_bool !PCI_DRIVERS_GENERIC
3169 select NO_GENERIC_PCI_IOPORT_MAP
Christoph Hellwig2eac9c22018-11-15 20:05:33 +01003170 select PCI_DOMAINS if PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07003171
3172#
3173# ISA support is now enabled via select. Too many systems still have the one
3174# or other ISA chip on the board that users don't know about so don't expect
3175# users to choose the right thing ...
3176#
3177config ISA
3178 bool
3179
Linus Torvalds1da177e2005-04-16 15:20:36 -07003180config TC
3181 bool "TURBOchannel support"
3182 depends on MACH_DECSTATION
3183 help
Justin P. Mattock50a23e62010-10-16 10:36:23 -07003184 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3185 processors. TURBOchannel programming specifications are available
3186 at:
3187 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3188 and:
3189 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3190 Linux driver support status is documented at:
3191 <http://www.linux-mips.org/wiki/DECstation>
Linus Torvalds1da177e2005-04-16 15:20:36 -07003192
Linus Torvalds1da177e2005-04-16 15:20:36 -07003193config MMU
3194 bool
3195 default y
3196
Matt Redfearn109c32f2016-11-24 17:32:45 +00003197config ARCH_MMAP_RND_BITS_MIN
3198 default 12 if 64BIT
3199 default 8
3200
3201config ARCH_MMAP_RND_BITS_MAX
3202 default 18 if 64BIT
3203 default 15
3204
3205config ARCH_MMAP_RND_COMPAT_BITS_MIN
Enrico Weigelt, metux IT consult371a4152019-03-11 16:54:27 +01003206 default 8
Matt Redfearn109c32f2016-11-24 17:32:45 +00003207
3208config ARCH_MMAP_RND_COMPAT_BITS_MAX
Enrico Weigelt, metux IT consult371a4152019-03-11 16:54:27 +01003209 default 15
Matt Redfearn109c32f2016-11-24 17:32:45 +00003210
Ralf Baechled865bea2007-10-11 23:46:10 +01003211config I8253
3212 bool
Russell King798778b2011-05-08 19:03:03 +01003213 select CLKSRC_I8253
Thomas Gleixner2d026122011-06-09 13:08:27 +00003214 select CLKEVT_I8253
Wu Zhangjin9726b432009-11-17 01:32:58 +08003215 select MIPS_EXTERNAL_TIMER
Ralf Baechled865bea2007-10-11 23:46:10 +01003216
Ralf Baechlee05eb3f2013-06-12 10:54:11 +02003217config ZONE_DMA
3218 bool
3219
Ralf Baechlecce335a2007-11-03 02:05:43 +00003220config ZONE_DMA32
3221 bool
3222
Linus Torvalds1da177e2005-04-16 15:20:36 -07003223endmenu
3224
Linus Torvalds1da177e2005-04-16 15:20:36 -07003225config TRAD_SIGNALS
3226 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07003227
Linus Torvalds1da177e2005-04-16 15:20:36 -07003228config MIPS32_COMPAT
Ralf Baechle78aaf952014-12-19 01:18:03 +01003229 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07003230
3231config COMPAT
3232 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07003233
Atsushi Nemoto05e43962006-11-07 18:02:44 +09003234config SYSVIPC_COMPAT
3235 bool
Atsushi Nemoto05e43962006-11-07 18:02:44 +09003236
Linus Torvalds1da177e2005-04-16 15:20:36 -07003237config MIPS32_O32
3238 bool "Kernel support for o32 binaries"
Ralf Baechle78aaf952014-12-19 01:18:03 +01003239 depends on 64BIT
3240 select ARCH_WANT_OLD_COMPAT_IPC
3241 select COMPAT
3242 select MIPS32_COMPAT
3243 select SYSVIPC_COMPAT if SYSVIPC
Linus Torvalds1da177e2005-04-16 15:20:36 -07003244 help
3245 Select this option if you want to run o32 binaries. These are pure
3246 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3247 existing binaries are in this format.
3248
3249 If unsure, say Y.
3250
3251config MIPS32_N32
3252 bool "Kernel support for n32 binaries"
Ralf Baechlec22eacf2015-01-03 12:10:23 +01003253 depends on 64BIT
Arnd Bergmann5a9372f2019-01-10 17:24:31 +01003254 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
Ralf Baechle78aaf952014-12-19 01:18:03 +01003255 select COMPAT
3256 select MIPS32_COMPAT
3257 select SYSVIPC_COMPAT if SYSVIPC
Linus Torvalds1da177e2005-04-16 15:20:36 -07003258 help
3259 Select this option if you want to run n32 binaries. These are
3260 64-bit binaries using 32-bit quantities for addressing and certain
3261 data that would normally be 64-bit. They are used in special
3262 cases.
3263
3264 If unsure, say N.
3265
3266config BINFMT_ELF32
3267 bool
3268 default y if MIPS32_O32 || MIPS32_N32
Ralf Baechlef43edca2016-05-23 16:22:26 -07003269 select ELFCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -07003270
Ralf Baechle21162452007-02-09 17:08:58 +00003271menu "Power management options"
Rodolfo Giometti952fa952006-06-05 17:43:10 +02003272
Wu Zhangjin363c55c2009-06-04 20:27:10 +08003273config ARCH_HIBERNATION_POSSIBLE
3274 def_bool y
Ralf Baechle3f5b3e12009-07-02 11:48:07 +01003275 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
Wu Zhangjin363c55c2009-06-04 20:27:10 +08003276
Johannes Bergf4cb5702007-12-08 02:14:00 +01003277config ARCH_SUSPEND_POSSIBLE
3278 def_bool y
Ralf Baechle3f5b3e12009-07-02 11:48:07 +01003279 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
Johannes Bergf4cb5702007-12-08 02:14:00 +01003280
Ralf Baechle21162452007-02-09 17:08:58 +00003281source "kernel/power/Kconfig"
Rodolfo Giometti952fa952006-06-05 17:43:10 +02003282
Linus Torvalds1da177e2005-04-16 15:20:36 -07003283endmenu
3284
Viresh Kumar7a998932013-04-04 12:54:21 +00003285config MIPS_EXTERNAL_TIMER
3286 bool
3287
Viresh Kumar7a998932013-04-04 12:54:21 +00003288menu "CPU Power Management"
Paul Burtonc095eba2014-04-14 16:24:22 +01003289
3290if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
Viresh Kumar7a998932013-04-04 12:54:21 +00003291source "drivers/cpufreq/Kconfig"
Viresh Kumar7a998932013-04-04 12:54:21 +00003292endif
Wu Zhangjin9726b432009-11-17 01:32:58 +08003293
Paul Burtonc095eba2014-04-14 16:24:22 +01003294source "drivers/cpuidle/Kconfig"
3295
3296endmenu
3297
Ralf Baechle98cdee02012-11-15 10:35:42 +01003298source "drivers/firmware/Kconfig"
3299
Sanjay Lal2235a542012-11-21 18:33:59 -08003300source "arch/mips/kvm/Kconfig"
Nathan Chancellore91946d2020-04-28 15:14:16 -07003301
3302source "arch/mips/vdso/Kconfig"