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| author | Alexander Shiyan <shc_work@mail.ru> | 2013-02-08 14:02:20 +0400 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2013-02-11 09:26:35 +0100 |
| commit | caf066102eb048a0b749de16d31d837dd49be8e3 (patch) | |
| tree | a456d97908e84a0461d57015483c3860eca639ca /arch/arm/cpu | |
| parent | c49819d9034afa3cef7a150afb8d44c9dada09b0 (diff) | |
| download | barebox-caf066102eb048a0b749de16d31d837dd49be8e3.tar.gz barebox-caf066102eb048a0b749de16d31d837dd49be8e3.tar.xz | |
ARM: mmu: Clear unpredictable bits for translation table
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/mmu.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/cpu/mmu.c b/arch/arm/cpu/mmu.c index 73dd0d397b..99f12b5ffb 100644 --- a/arch/arm/cpu/mmu.c +++ b/arch/arm/cpu/mmu.c @@ -279,6 +279,9 @@ static int mmu_init(void) if (get_cr() & CR_M) { asm volatile ("mrc p15,0,%0,c2,c0,0" : "=r"(ttb)); + /* Clear unpredictable bits [13:0] */ + ttb = (unsigned long *)((unsigned long)ttb & ~0x3fff); + if (!request_sdram_region("ttb", (unsigned long)ttb, SZ_16K)) pr_err("Error: Can't request SDRAM region for ttb\n"); } else { |