lab/x1/injector/disable_mmu.S

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ArmAsm
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2021-03-06 20:32:14 +09:00
.text
.align 2
.global _start
_start:
mov r9, #0
ldr r0, =0x67800000
mrc p15, 0, r10, c1, c0, 0
@bic r10, r10, #5 @ disable MMU and dcache
bic r10, r10, #1 @ disable MMU
@bic r10, r10, #4096 @ disable icache
mcr p15, 0, r10, c1, c0, 0 // write ctrl regs
#mcr p15, 0, r9, c7, c7, 0 // invalidate cache
#mcr p15, 0, r9, c8, c7, 0 // invalidate TLB
mov pc, r0