1 menu "MIPS architecture"
8 default "mips32" if CPU_MIPS32
9 default "mips64" if CPU_MIPS64
12 prompt "Target select"
17 select BOARD_EARLY_INIT_R
22 select DYNAMIC_IO_PORT_BASE
24 select MIPS_INSERT_BOOT_CONFIG
25 select SYS_CACHE_SHIFT_6
29 select PCI_MAP_SYSTEM_MEMORY
30 select ROM_EXCEPTION_VECTORS
31 select SUPPORTS_BIG_ENDIAN
32 select SUPPORTS_CPU_MIPS32_R1
33 select SUPPORTS_CPU_MIPS32_R2
34 select SUPPORTS_CPU_MIPS32_R6
35 select SUPPORTS_CPU_MIPS64_R1
36 select SUPPORTS_CPU_MIPS64_R2
37 select SUPPORTS_CPU_MIPS64_R6
38 select SUPPORTS_LITTLE_ENDIAN
44 select ROM_EXCEPTION_VECTORS
45 select SUPPORTS_BIG_ENDIAN
46 select SUPPORTS_CPU_MIPS32_R1
47 select SUPPORTS_CPU_MIPS32_R2
48 select SYS_MIPS_CACHE_INIT_RAM_LOAD
51 bool "Support QCA/Atheros ath79"
57 bool "Support MSCC VCore-III"
62 bool "Support BMIPS SoCs"
72 bool "Support MediaTek MIPS platforms"
75 select DISPLAY_CPUINFO
87 select LAST_STAGE_INIT
90 select ROM_EXCEPTION_VECTORS
91 select SUPPORTS_CPU_MIPS32_R1
92 select SUPPORTS_CPU_MIPS32_R2
93 select SUPPORTS_LITTLE_ENDIAN
97 bool "Support Ingenic JZ47xx"
103 bool "Support Marvell Octeon CN7xxx platforms"
104 select CPU_CAVIUM_OCTEON
105 select DISPLAY_CPUINFO
106 select DMA_ADDR_T_64BIT
114 select MIPS_MACH_EARLY_INIT
115 select MIPS_TUNE_OCTEON3
116 select ROM_EXCEPTION_VECTORS
117 select SUPPORTS_BIG_ENDIAN
118 select SUPPORTS_CPU_MIPS64_OCTEON
125 bool "Support Microchip PIC32"
131 bool "Support Boston"
135 select SYS_CACHE_SHIFT_6
137 select OF_BOARD_SETUP
139 select ROM_EXCEPTION_VECTORS
140 select SUPPORTS_BIG_ENDIAN
141 select SUPPORTS_CPU_MIPS32_R1
142 select SUPPORTS_CPU_MIPS32_R2
143 select SUPPORTS_CPU_MIPS32_R6
144 select SUPPORTS_CPU_MIPS64_R1
145 select SUPPORTS_CPU_MIPS64_R2
146 select SUPPORTS_CPU_MIPS64_R6
147 select SUPPORTS_LITTLE_ENDIAN
150 config TARGET_XILFPGA
151 bool "Support Imagination Xilfpga"
156 select SYS_CACHE_SHIFT_4
158 select ROM_EXCEPTION_VECTORS
159 select SUPPORTS_CPU_MIPS32_R1
160 select SUPPORTS_CPU_MIPS32_R2
161 select SUPPORTS_LITTLE_ENDIAN
164 This supports IMGTEC MIPSfpga platform
168 source "board/imgtec/boston/Kconfig"
169 source "board/imgtec/malta/Kconfig"
170 source "board/imgtec/xilfpga/Kconfig"
171 source "arch/mips/mach-ath79/Kconfig"
172 source "arch/mips/mach-mscc/Kconfig"
173 source "arch/mips/mach-bmips/Kconfig"
174 source "arch/mips/mach-jz47xx/Kconfig"
175 source "arch/mips/mach-pic32/Kconfig"
176 source "arch/mips/mach-mtmips/Kconfig"
177 source "arch/mips/mach-octeon/Kconfig"
182 prompt "Endianness selection"
184 Some MIPS boards can be configured for either little or big endian
185 byte order. These modes require different U-Boot images. In general there
186 is one preferred byteorder for a particular system but some systems are
187 just as commonly used in the one or the other endianness.
189 config SYS_BIG_ENDIAN
191 depends on SUPPORTS_BIG_ENDIAN
193 config SYS_LITTLE_ENDIAN
195 depends on SUPPORTS_LITTLE_ENDIAN
200 prompt "CPU selection"
201 default CPU_MIPS32_R2
204 bool "MIPS32 Release 1"
205 depends on SUPPORTS_CPU_MIPS32_R1
208 Choose this option to build an U-Boot for release 1 through 5 of the
212 bool "MIPS32 Release 2"
213 depends on SUPPORTS_CPU_MIPS32_R2
216 Choose this option to build an U-Boot for release 2 through 5 of the
220 bool "MIPS32 Release 6"
221 depends on SUPPORTS_CPU_MIPS32_R6
224 Choose this option to build an U-Boot for release 6 or later of the
228 bool "MIPS64 Release 1"
229 depends on SUPPORTS_CPU_MIPS64_R1
232 Choose this option to build a kernel for release 1 through 5 of the
236 bool "MIPS64 Release 2"
237 depends on SUPPORTS_CPU_MIPS64_R2
240 Choose this option to build a kernel for release 2 through 5 of the
244 bool "MIPS64 Release 6"
245 depends on SUPPORTS_CPU_MIPS64_R6
248 Choose this option to build a kernel for release 6 or later of the
251 config CPU_MIPS64_OCTEON
252 bool "Marvell Octeon series of CPUs"
253 depends on SUPPORTS_CPU_MIPS64_OCTEON
256 Choose this option for Marvell Octeon CPUs. These CPUs are between
257 MIPS64 R5 and R6 with other extensions.
263 config ROM_EXCEPTION_VECTORS
264 bool "Build U-Boot image with exception vectors"
266 Enable this to include exception vectors in the U-Boot image. This is
267 required if the U-Boot entry point is equal to the address of the
268 CPU reset exception vector (e.g. U-Boot as ROM loader in Qemu,
269 U-Boot booted from parallel NOR flash).
270 Disable this, if the U-Boot image is booted from DRAM (e.g. by SPL).
271 In that case the image size will be reduced by 0x500 bytes.
274 hex "MIPS CM GCR Base Address"
276 default 0x16100000 if TARGET_BOSTON
279 The physical base address at which to map the MIPS Coherence Manager
280 Global Configuration Registers (GCRs). This should be set such that
281 the GCRs occupy a region of the physical address space which is
282 otherwise unused, or at minimum that software doesn't need to access.
284 config MIPS_CACHE_INDEX_BASE
285 hex "Index base address for cache initialisation"
286 default 0x80000000 if CPU_MIPS32
287 default 0xffffffff80000000 if CPU_MIPS64
289 This is the base address for a memory block, which is used for
290 initialising the cache lines. This is also the base address of a memory
291 block which is used for loading and filling cache lines when
292 SYS_MIPS_CACHE_INIT_RAM_LOAD is selected.
293 Normally this is CKSEG0. If the MIPS system needs to move this block
294 to some SRAM or ScratchPad RAM, adapt this option accordingly.
296 config MIPS_MACH_EARLY_INIT
297 bool "Enable mach specific very early init code"
299 Use this to enable the call to mips_mach_early_init() very early
300 from start.S. This function can be used e.g. to do some very early
301 CPU / SoC intitialization or image copying. Its called very early
302 and at this stage the PC might not match the linking address
303 (CONFIG_TEXT_BASE) - no absolute jump done until this call.
305 config MIPS_CACHE_SETUP
306 bool "Allow generic start code to initialize and setup caches"
307 default n if SKIP_LOWLEVEL_INIT
310 This allows the generic start code to invoke the generic initialization
311 of the CPU caches. Disabling this can be useful for RAM boot scenarios
312 (EJTAG, SPL payload) or for machines which don't need cache initialization
313 or which want to provide their own cache implementation.
317 config MIPS_CACHE_DISABLE
318 bool "Allow generic start code to initially disable caches"
319 default n if SKIP_LOWLEVEL_INIT
322 This allows the generic start code to initially disable the CPU caches
323 and run uncached until the caches are initialized and enabled. Disabling
324 this can be useful on machines which don't need cache initialization or
325 which want to provide their own cache implementation.
329 config MIPS_RELOCATION_TABLE_SIZE
330 hex "Relocation table size"
334 A table of relocation data will be appended to the U-Boot binary
335 and parsed in relocate_code() to fix up all offsets in the relocated
338 This option allows the amount of space reserved for the table to be
339 adjusted in a range from 256 up to 64k. The default is 32k and should
340 be ok in most cases. Reduce this value to shrink the size of U-Boot
343 The build will fail and a valid size suggested if this is too small.
345 If unsure, leave at the default value.
347 config RESTORE_EXCEPTION_VECTOR_BASE
348 bool "Restore exception vector base before booting linux kernel"
350 In U-Boot the exception vector base will be moved to top of memory,
351 to be used to display register dump when exception occurs.
352 But some old linux kernel does not honor the base set in CP0_EBASE.
353 A modified exception vector base will cause kernel crash.
355 This option will restore the exception vector base to its previous
360 config OVERRIDE_EXCEPTION_VECTOR_BASE
361 bool "Override the exception vector base to be restored"
362 depends on RESTORE_EXCEPTION_VECTOR_BASE
364 Enable this option if you want to use a different exception vector
365 base rather than the previously saved one.
367 config NEW_EXCEPTION_VECTOR_BASE
368 hex "New exception vector base"
369 depends on OVERRIDE_EXCEPTION_VECTOR_BASE
370 range 0x80000000 0xbffff000
373 The exception vector base to be restored before booting linux kernel
375 config INIT_STACK_WITHOUT_MALLOC_F
376 bool "Do not reserve malloc space on initial stack"
378 Enable this option if you don't want to reserve malloc space on
379 initial stack. This is useful if the initial stack can't hold large
380 malloc space. Platform should set the malloc_base later when DRAM is
383 config SPL_INIT_STACK_WITHOUT_MALLOC_F
384 bool "Do not reserve malloc space on initial stack in SPL"
386 Enable this option if you don't want to reserve malloc space on
387 initial stack. This is useful if the initial stack can't hold large
388 malloc space. Platform should set the malloc_base later when DRAM is
391 config SPL_LOADER_SUPPORT
394 Enable this option if you want to use SPL loaders without DM enabled.
398 menu "OS boot interface"
400 config MIPS_BOOT_CMDLINE_LEGACY
401 bool "Hand over legacy command line to Linux kernel"
404 Enable this option if you want U-Boot to hand over the Yamon-style
405 command line to the kernel. All bootargs will be prepared as argc/argv
406 compatible list. The argument count (argc) is stored in register $a0.
407 The address of the argument list (argv) is stored in register $a1.
409 config MIPS_BOOT_ENV_LEGACY
410 bool "Hand over legacy environment to Linux kernel"
413 Enable this option if you want U-Boot to hand over the Yamon-style
414 environment to the kernel. Information like memory size, initrd
415 address and size will be prepared as zero-terminated key/value list.
416 The address of the environment is stored in register $a2.
419 bool "Hand over a flattened device tree to Linux kernel"
421 Enable this option if you want U-Boot to hand over a flattened
422 device tree to the kernel. According to UHI register $a0 will be set
423 to -2 and the FDT address is stored in $a1.
427 config SUPPORTS_BIG_ENDIAN
430 config SUPPORTS_LITTLE_ENDIAN
433 config SUPPORTS_CPU_MIPS32_R1
436 config SUPPORTS_CPU_MIPS32_R2
439 config SUPPORTS_CPU_MIPS32_R6
442 config SUPPORTS_CPU_MIPS64_R1
445 config SUPPORTS_CPU_MIPS64_R2
448 config SUPPORTS_CPU_MIPS64_R6
451 config SUPPORTS_CPU_MIPS64_OCTEON
454 config CPU_CAVIUM_OCTEON
459 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
463 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
464 default y if CPU_MIPS64_OCTEON
469 config MIPS_TUNE_14KC
472 config MIPS_TUNE_24KC
475 config MIPS_TUNE_34KC
478 config MIPS_TUNE_74KC
481 config MIPS_TUNE_OCTEON3
493 config SYS_MIPS_CACHE_INIT_RAM_LOAD
496 config MIPS_INIT_STACK_IN_SRAM
499 Select this if the initial stack frame could be setup in SRAM.
500 Normally the initial stack frame is set up in DRAM which is often
501 only available after lowlevel_init. With this option the initial
502 stack frame and the early C environment is set up before
503 lowlevel_init. Thus lowlevel_init does not need to be implemented
506 config MIPS_SRAM_INIT
508 depends on MIPS_INIT_STACK_IN_SRAM
510 Select this if the SRAM for initial stack needs to be initialized
511 before it can be used. If enabled, a function mips_sram_init() will
512 be called just before setup_stack_gd.
514 config DMA_ADDR_T_64BIT
517 Select this to enable 64-bit DMA addressing
519 config SYS_DCACHE_SIZE
523 The total size of the L1 Dcache, if known at compile time.
525 config SYS_DCACHE_LINE_SIZE
529 The size of L1 Dcache lines, if known at compile time.
531 config SYS_ICACHE_SIZE
535 The total size of the L1 ICache, if known at compile time.
537 config SYS_ICACHE_LINE_SIZE
541 The size of L1 Icache lines, if known at compile time.
543 config SYS_SCACHE_LINE_SIZE
547 The size of L2 cache lines, if known at compile time.
550 config SYS_CACHE_SIZE_AUTO
551 def_bool y if SYS_DCACHE_SIZE = 0 && SYS_ICACHE_SIZE = 0 && \
552 SYS_DCACHE_LINE_SIZE = 0 && SYS_ICACHE_LINE_SIZE = 0 && \
553 SYS_SCACHE_LINE_SIZE = 0
555 Select this (or let it be auto-selected by not defining any cache
556 sizes) in order to allow U-Boot to automatically detect the sizes
557 of caches at runtime. This has a small cost in code size & runtime
558 so if you know the cache configuration for your system at compile
559 time it would be beneficial to configure it.
564 Select this if your system includes an L2 cache and you want U-Boot
565 to initialise & maintain it.
567 config DYNAMIC_IO_PORT_BASE
573 Select this if your system contains a MIPS Coherence Manager and you
574 wish U-Boot to configure it or make use of it to retrieve system
575 information such as cache configuration.
577 config MIPS_INSERT_BOOT_CONFIG
580 Enable this to insert some board-specific boot configuration in
581 the U-Boot binary at offset 0x10.
583 config MIPS_BOOT_CONFIG_WORD0
585 depends on MIPS_INSERT_BOOT_CONFIG
586 default 0x420 if TARGET_MALTA
589 Value which is inserted as boot config word 0.
591 config MIPS_BOOT_CONFIG_WORD1
593 depends on MIPS_INSERT_BOOT_CONFIG
596 Value which is inserted as boot config word 1.