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| author | Hyok S. Choi <hyok.choi@samsung.com> | 2006-09-26 17:36:37 +0900 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-09-27 17:34:30 +0100 |
| commit | f12d0d7c7786af39435ef6ae9defe47fb58f6091 (patch) | |
| tree | 03361f2b925754f2acf4f311df2122f844d3d4fe /arch/arm/Kconfig | |
| parent | fefdaa06ccdde394be865ed76509be82813e425b (diff) | |
| download | kernel_samsung_espresso10-f12d0d7c7786af39435ef6ae9defe47fb58f6091.zip kernel_samsung_espresso10-f12d0d7c7786af39435ef6ae9defe47fb58f6091.tar.gz kernel_samsung_espresso10-f12d0d7c7786af39435ef6ae9defe47fb58f6091.tar.bz2 | |
[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/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 0810d27..2673fee 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -621,6 +621,7 @@ config LEDS_CPU config ALIGNMENT_TRAP bool + depends on CPU_CP15_MMU default y if !ARCH_EBSA110 help ARM processors can not fetch/store information which is not @@ -852,7 +853,7 @@ source "drivers/base/Kconfig" source "drivers/connector/Kconfig" -if ALIGNMENT_TRAP +if ALIGNMENT_TRAP || !CPU_CP15_MMU source "drivers/mtd/Kconfig" endif |