Wolfvak 987b820c4a beginning of better ARM11:
- moved I2C code to the ARM11 (with an ugly hack that MUST be fixed)
- reworked the PXI protocol to have lower latencies and remove any potential async support
2019-06-03 02:27:41 +02:00

41 lines
651 B
ArmAsm

.section .text.boot
.align 4
#include <arm.h>
.global __boot
__boot:
cpsid aif, #SR_SVC_MODE
mov r0, #0
mcr p15, 0, r0, c7, c7, 0
mcr p15, 0, r0, c7, c14, 0
mcr p15, 0, r0, c7, c10, 4
ldr sp, =_stack_top
@ Reset values
ldr r0, =0x00054078
ldr r1, =0x0000000F
ldr r2, =0x00000000
mcr p15, 0, r0, c1, c0, 0
mcr p15, 0, r1, c1, c0, 1
mcr p15, 0, r2, c1, c0, 2
ldr r0, =__bss_start
ldr r1, =__bss_end
mov r2, #0
.Lclearbss:
cmp r0, r1
strlt r2, [r0], #4
blt .Lclearbss
bl main
b __boot
.section .bss.stack
.align 3
.space (8192 * 4)
_stack_top: