summaryrefslogtreecommitdiff
path: root/README
diff options
context:
space:
mode:
authorWolfgang Denk <wd@denx.de>2011-08-02 21:45:45 +0200
committerWolfgang Denk <wd@denx.de>2011-08-02 21:45:45 +0200
commitcc4e6d25561b1aaa8501fa6017a0d17fd4f92ed6 (patch)
treec2f889a257e55ae81842b74ee57ef2b16e8c685a /README
parent982db890e8ef5afa142f9519f44316086e4c2954 (diff)
parent92bbd64e39299337dbc9ee35053e38c9b1718966 (diff)
downloadu-boot-imx-cc4e6d25561b1aaa8501fa6017a0d17fd4f92ed6.zip
u-boot-imx-cc4e6d25561b1aaa8501fa6017a0d17fd4f92ed6.tar.gz
u-boot-imx-cc4e6d25561b1aaa8501fa6017a0d17fd4f92ed6.tar.bz2
Merge branch 'master' of git://git.denx.de/u-boot-mips
* 'master' of git://git.denx.de/u-boot-mips: README: update MIPS related informations MIPS: make cache operation mode configurable MIPS: rename INFINEON_EBU_BOOTCFG to CONFIG_SYS_XWAY_EBU_BOOTFG MIPS: INCA-IP: rename inca-swap-bytes host tool
Diffstat (limited to 'README')
-rw-r--r--README35
1 files changed, 34 insertions, 1 deletions
diff --git a/README b/README
index aec28e3..a325892 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.