X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=blobdiff_plain;f=README;h=a325892199bdaee2735f3c7138eee4d0cdedddfb;hp=aec28e3b9bd6264d904be329a75f345055136940;hb=ea5c50f297774ee7c7078a4138d84de3a6150dba;hpb=7ca9296e1b5b165a2c4db49c44716764f1c7dc44 diff --git a/README b/README index aec28e3b9b..a325892199 100644 --- a/README +++ b/README @@ -180,6 +180,7 @@ Directory Hierarchy: /lib Architecture specific library files /mips Files generic to MIPS architecture /cpu CPU specific files + /mips32 Files specific to MIPS32 CPUs /lib Architecture specific library files /nios2 Files generic to Altera NIOS2 architecture /cpu CPU specific files @@ -382,6 +383,38 @@ The following options need to be configured: 2. The core frequency as calculated above is multiplied by this value. +- MIPS CPU options: + CONFIG_SYS_INIT_SP_OFFSET + + Offset relative to CONFIG_SYS_SDRAM_BASE for initial stack + pointer. This is needed for the temporary stack before + relocation. + + CONFIG_SYS_MIPS_CACHE_MODE + + Cache operation mode for the MIPS CPU. + See also arch/mips/include/asm/mipsregs.h. + Possible values are: + CONF_CM_CACHABLE_NO_WA + CONF_CM_CACHABLE_WA + CONF_CM_UNCACHED + CONF_CM_CACHABLE_NONCOHERENT + CONF_CM_CACHABLE_CE + CONF_CM_CACHABLE_COW + CONF_CM_CACHABLE_CUW + CONF_CM_CACHABLE_ACCELERATED + + CONFIG_SYS_XWAY_EBU_BOOTCFG + + Special option for Lantiq XWAY SoCs for booting from NOR flash. + See also arch/mips/cpu/mips32/start.S. + + CONFIG_XWAY_SWAP_BYTES + + Enable compilation of tools/xway-swap-bytes needed for Lantiq + XWAY SoCs for booting from NOR flash. The U-Boot image needs to + be swapped if a flash programmer is used. + - Linux Kernel Interface: CONFIG_CLOCKS_IN_MHZ @@ -3070,7 +3103,7 @@ Low Level (hardware related) configuration options: globally (CONFIG_CMD_MEM). - CONFIG_SKIP_LOWLEVEL_INIT - [ARM only] If this variable is defined, then certain + [ARM, MIPS only] If this variable is defined, then certain low level initializations (like setting up the memory controller) are omitted and/or U-Boot does not relocate itself into RAM.