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| author | Hyok S. Choi | 2006-09-26 10:36:37 +0200 |
|---|---|---|
| committer | Russell King | 2006-09-27 18:34:30 +0200 |
| commit | f12d0d7c7786af39435ef6ae9defe47fb58f6091 (patch) | |
| tree | 03361f2b925754f2acf4f311df2122f844d3d4fe /arch/arm/mm/Kconfig | |
| parent | [ARM] nommu: defines CPU_CP15, CPU_CP15_MMU and CPU_CP15_MPU (diff) | |
| download | kernel-qcow2-linux-f12d0d7c7786af39435ef6ae9defe47fb58f6091.tar.gz kernel-qcow2-linux-f12d0d7c7786af39435ef6ae9defe47fb58f6091.tar.xz kernel-qcow2-linux-f12d0d7c7786af39435ef6ae9defe47fb58f6091.zip | |
[ARM] nommu: manage the CP15 things
All the current CP15 access codes in ARM arch can be categorized and
conditioned by the defines as follows:
Related operation Safe condition
a. any CP15 access !CPU_CP15
b. alignment trap CPU_CP15_MMU
c. D-cache(C-bit) CPU_CP15
d. I-cache CPU_CP15 && !( CPU_ARM610 || CPU_ARM710 ||
CPU_ARM720 || CPU_ARM740 ||
CPU_XSCALE || CPU_XSC3 )
e. alternate vector CPU_CP15 && !CPU_ARM740
f. TTB CPU_CP15_MMU
g. Domain CPU_CP15_MMU
h. FSR/FAR CPU_CP15_MMU
For example, alternate vector is supported if and only if
"CPU_CP15 && !CPU_ARM740" is satisfied.
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm/Kconfig')
| -rw-r--r-- | arch/arm/mm/Kconfig | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index c7fb835c148c..0ac11ea84508 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -445,15 +445,15 @@ config CPU_BIG_ENDIAN of your chipset/board/processor. config CPU_ICACHE_DISABLE - bool "Disable I-Cache" - depends on CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020 || CPU_V6 + bool "Disable I-Cache (I-bit)" + depends on CPU_CP15 && !(CPU_ARM610 || CPU_ARM710 || CPU_ARM720T || CPU_ARM740T || CPU_XSCALE || CPU_XSC3) help Say Y here to disable the processor instruction cache. Unless you have a reason not to or are unsure, say N. config CPU_DCACHE_DISABLE - bool "Disable D-Cache" - depends on CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020 || CPU_V6 + bool "Disable D-Cache (C-bit)" + depends on CPU_CP15 help Say Y here to disable the processor data cache. Unless you have a reason not to or are unsure, say N. |