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Enable ITCM access for GW binary

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d0k3 2016-04-11 01:58:18 +02:00
parent e4d78826c9
commit ce4e454ad9
1 changed files with 8 additions and 0 deletions
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8
source/abstraction/gw-start.s
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@ -37,6 +37,14 @@ _start:
cmp r1, #0 cmp r1, #0
bgt waitLoop92 bgt waitLoop92
@ Enable caches
mrc p15, 0, r4, c1, c0, 0 @ read control register
orr r4, r4, #(1<<18) @ - itcm enable
orr r4, r4, #(1<<12) @ - instruction cache enable
orr r4, r4, #(1<<2) @ - data cache enable
orr r4, r4, #(1<<0) @ - mpu enable
mcr p15, 0, r4, c1, c0, 0 @ write control register
ldr sp,=0x22160000 ldr sp,=0x22160000
ldr r3, =main ldr r3, =main
blx r3 blx r3