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thanks to ultimo and others I think I have the pi2 switching back to svc and secure mode now.

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and other cleanup
This commit is contained in:
dwelch
2016-03-28 20:44:00 -04:00
parent 77f364f4a4
commit 6f4c0d8bcc
106 changed files with 1728 additions and 262941 deletions
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45
boards/pi2/SVC/blinker05/vectors.s
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@@ -14,7 +14,7 @@ _start:
ldr pc,fiq_handler
reset_handler: .word reset
undefined_handler: .word hang
swi_handler: .word hang
swi_handler: .word smc
prefetch_handler: .word hang
data_handler: .word hang
hyp_handler: .word hang
@@ -25,24 +25,49 @@ reset:
;@ b skip
mrs r0,cpsr
and r1,r0,#0x1F
cmp r1,#0x1A
bne skip
bic r0,r0,#0x1F
orr r0,r0,#0x13
msr spsr_cxsf,r0
add r0,pc,#4
msr ELR_hyp,r0 ;@ .word 0xe12ef300
eret ;@ .word 0xe160006e
msr ELR_hyp,r0
eret
skip:
mrc p15, 0, r1, c12, c0, 0 ;@ get vbar
mov r0,#0x8000
mov r1,#0x0000
;@ mov r1,#0x0000
ldmia r0!,{r2,r3,r4,r5,r6,r7,r8,r9}
stmia r1!,{r2,r3,r4,r5,r6,r7,r8,r9}
ldmia r0!,{r2,r3,r4,r5,r6,r7,r8,r9}
stmia r1!,{r2,r3,r4,r5,r6,r7,r8,r9}
mov r12,#0
mcr p15, 0, r12, c7, c10, 1
dsb
mov r12, #0
mcr p15, 0, r12, c7, c5, 0
mov r12, #0
mcr p15, 0, r12, c7, c5, 6
dsb
isb
smc #0
mrc p15,0,r2,c1,c0,0
bic r2,#0x1000
bic r2,#0x0004
mcr p15,0,r2,c1,c0,0
mov r0,#0x8000
mcr p15, 0, r0, c12, c0, 0
;@ mov r0,#0x8000
;@ mov r1,#0x0000
;@ ldmia r0!,{r2,r3,r4,r5,r6,r7,r8,r9}
;@ stmia r1!,{r2,r3,r4,r5,r6,r7,r8,r9}
;@ ldmia r0!,{r2,r3,r4,r5,r6,r7,r8,r9}
;@ stmia r1!,{r2,r3,r4,r5,r6,r7,r8,r9}
;@ (PSR_IRQ_MODE|PSR_FIQ_DIS|PSR_IRQ_DIS)
mov r0,#0xD2
msr cpsr_c,r0
@@ -61,6 +86,12 @@ skip:
bl notmain
hang: b hang
smc:
mrc p15, 0, r1, c1, c1, 0
bic r1, r1, #1
mcr p15, 0, r1, c1, c1, 0
movs pc, lr
.globl PUT32
PUT32:
str r1,[r0]