diff options
| author | R Sricharan <r.sricharan@ti.com> | 2013-03-04 20:04:45 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2013-03-28 09:10:58 +0100 |
| commit | de63ac278cbaaa387da3efaf0b21b819c2b0c496 (patch) | |
| tree | 0fd5fac28bf5733062dee5a14881508569f4d709 /arch/arm/cpu/armv7/cache_v7.c | |
| parent | 96fdbec2f96c9e11758c8742409069eeef841722 (diff) | |
ARM: mmu: Set domain permissions to client access
The 'XN' execute never bit is set in the pagetables. This will
prevent speculative prefetches to non executable regions. But the
domain permissions are set as master in the DACR register.
So the pagetable attribute for 'XN' is not effective. Change the
permissions to client.
This fixes lot of speculative prefetch aborts seen on OMAP5
secure devices.
Signed-off-by: R Sricharan <r.sricharan@ti.com>
Tested-by: Vincent Stehle <v-stehle@ti.com>
Cc: Vincent Stehle <v-stehle@ti.com>
Cc: Tom Rini <trini@ti.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Diffstat (limited to 'arch/arm/cpu/armv7/cache_v7.c')
| -rw-r--r-- | arch/arm/cpu/armv7/cache_v7.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/cache_v7.c b/arch/arm/cpu/armv7/cache_v7.c index 5f6d0396f..8748c145c 100644 --- a/arch/arm/cpu/armv7/cache_v7.c +++ b/arch/arm/cpu/armv7/cache_v7.c @@ -340,6 +340,9 @@ void mmu_page_table_flush(unsigned long start, unsigned long stop) { } +void arm_init_domains(void) +{ +} #endif /* #ifndef CONFIG_SYS_DCACHE_OFF */ #ifndef CONFIG_SYS_ICACHE_OFF |