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yaml
---
r: 249954
b: refs/heads/master
c: af3e4fd
h: refs/heads/master
v: v3
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Mark A. Greer authored and Russell King committed May 12, 2011
1 parent b6e1ae4 commit 8860acf
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2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 111e9a5ce66e64cbf9cf33a60982f29fd7e224da
refs/heads/master: af3e4fd37a18f2e5a00175bc96061541d1364a3b
16 changes: 16 additions & 0 deletions trunk/arch/arm/boot/compressed/head.S
Original file line number Diff line number Diff line change
Expand Up @@ -447,7 +447,11 @@ __setup_mmu: sub r3, r4, #16384 @ Page directory size
orr r1, r1, #3 << 10
add r2, r3, #16384
1: cmp r1, r9 @ if virt > start of RAM
#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH
orrhs r1, r1, #0x08 @ set cacheable
#else
orrhs r1, r1, #0x0c @ set cacheable, bufferable
#endif
cmp r1, r10 @ if virt > end of RAM
bichs r1, r1, #0x0c @ clear cacheable, bufferable
str r1, [r0], #4 @ 1:1 mapping
Expand All @@ -472,6 +476,12 @@ __setup_mmu: sub r3, r4, #16384 @ Page directory size
mov pc, lr
ENDPROC(__setup_mmu)

__arm926ejs_mmu_cache_on:
#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH
mov r0, #4 @ put dcache in WT mode
mcr p15, 7, r0, c15, c0, 0
#endif

__armv4_mmu_cache_on:
mov r12, lr
#ifdef CONFIG_MMU
Expand Down Expand Up @@ -653,6 +663,12 @@ proc_types:
W(b) __armv4_mpu_cache_off
W(b) __armv4_mpu_cache_flush

.word 0x41069260 @ ARM926EJ-S (v5TEJ)
.word 0xff0ffff0
b __arm926ejs_mmu_cache_on
b __armv4_mmu_cache_off
b __armv5tej_mmu_cache_flush

.word 0x00007000 @ ARM7 IDs
.word 0x0000f000
mov pc, lr
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