voron

experimental ARM OS
git clone git://git.2f30.org/voron.git
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commit 6e4eddb298de842f598521c075df71f363aaff7f
parent b4990f01971abc97e9529bc43e285e26172d22f0
Author: oblique <psyberbits@gmail.com>
Date:   Thu Apr 25 11:31:11 +0300

mmu.c: disable SCTLR.AFE in mmu_init

this is needed for AP[2:0] access permissions model.

Diffstat:
kernel/mmu.c | 8++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/kernel/mmu.c b/kernel/mmu.c @@ -28,14 +28,14 @@ mmu_init(void) /* set DACR */ "ldr v1, =0x55555555 \n\t" "mcr p15, 0, v1, c3, c0, 0 \n\t" + /* make sure that SCTLR.AFE is disabled */ + "mrc p15, 0, v1, c1, c0, 0 \n\t" + "bic v1, v1, #(1 << 29) \n\t" + "mcr p15, 0, v1, c1, c0, 0 \n\t" /* invalidate TLB */ "mcr p15, 0, v1, c8, c7, 0 \n\t" /* completes the TLB invalidation */ "dsb \n\t" - /* enable AFE */ - "mrc p15, 0, v1, c1, c0, 0 \n\t" - "orr v1, v1, #(1 << 29) \n\t" - "mcr p15, 0, v1, c1, c0, 0 \n\t" : : : "v1", "memory" ); }