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| author | Aneesh V <aneesh@ti.com> | 2011-06-16 23:30:47 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2011-07-04 10:55:25 +0200 |
| commit | 2c451f7831208741d0ff7ca6046cffcd9ee49def (patch) | |
| tree | ec885d6ce9bc97eca3128e83e9af35c5b063ffe1 /README | |
| parent | 4c93da7c392737f2036130c240e2b4bea773d703 (diff) | |
| download | u-boot-imx-2c451f7831208741d0ff7ca6046cffcd9ee49def.zip u-boot-imx-2c451f7831208741d0ff7ca6046cffcd9ee49def.tar.gz u-boot-imx-2c451f7831208741d0ff7ca6046cffcd9ee49def.tar.bz2 | |
armv7: cache maintenance operations for armv7
- Add a framework for layered cache maintenance
- separate out SOC specific outer cache maintenance from
maintenance of caches known to CPU
- Add generic ARMv7 cache maintenance operations that affect all
caches known to ARMv7 CPUs. For instance in Cortex-A8 these
opertions will affect both L1 and L2 caches. In Cortex-A9
these will affect only L1 cache
- D-cache operations supported:
- Invalidate entire D-cache
- Invalidate D-cache range
- Flush(clean & invalidate) entire D-cache
- Flush D-cache range
- I-cache operations supported:
- Invalidate entire I-cache
- Add maintenance functions for TLB, branch predictor array etc.
- Enable -march=armv7-a so that armv7 assembly instructions can be
used
Signed-off-by: Aneesh V <aneesh@ti.com>
Diffstat (limited to 'README')
| -rw-r--r-- | README | 5 |
1 files changed, 5 insertions, 0 deletions
@@ -460,6 +460,11 @@ The following options need to be configured: Note: If a "bootargs" environment is defined, it will overwride the defaults discussed just above. +- Cache Configuration: + CONFIG_SYS_ICACHE_OFF - Do not enable instruction cache in U-Boot + CONFIG_SYS_DCACHE_OFF - Do not enable data cache in U-Boot + CONFIG_SYS_L2CACHE_OFF- Do not enable L2 cache in U-Boot + - Serial Ports: CONFIG_PL010_SERIAL |