#include <linux/config.h>
#include <linux/linkage.h>
#include <asm/mach-types.h>
.section ".start", #alloc, #execinstr
__S3C2410_start:
@ Preserve r8/r7 i.e. kernel entry values
@ What is it?
@ Nandy
@ Data cache, Intstruction cache, MMU might be active.
@ Be sure to flush kernel binary out of the cache,
@ whatever state it is, before it is turned off.
@ This is done by fetching through currently executed
@ memory to be sure we hit the same cache
bic r2, pc, #0x1f
add r3, r2, #0x4000 @ 16 kb is quite enough...
1: ldr r0, [r2], #32
teq r2, r3
bne 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
mcr p15, 0, r0, c7, c7, 0 @ flush I & D caches
#if 0
@ disabling MMU and caches
mrc p15, 0, r0, c1, c0, 0 @ read control register
bic r0, r0, #0x05 @ disable D cache and MMU
bic r0, r0, #1000 @ disable I cache
mcr p15, 0, r0, c1, c0, 0
#endif
/*
* Pause for a short time so that we give enough time
* for the host to start a terminal up.
*/
mov r0, #0x00200000
1: subs r0, r0, #1
bne 1b |
