void call_linux(long a0, long a1, long a2)
{
local_irq_disable();
cache_clean_invalidate();
tlb_invalidate();
__asm__(
"mov r0, %0\n"
"mov r1, %1\n"
"mov r2, %2\n"
"mov ip, #0\n"
"mcr p15, 0, ip, c13, c0, 0\n" /* zero PID */
"mcr p15, 0, ip, c7, c7, 0\n" /* invalidate I,D caches */
"mcr p15, 0, ip, c7, c10, 4\n" /* drain write buffer */
"mcr p15, 0, ip, c8, c7, 0\n" /* invalidate I,D TLBs */
"mrc p15, 0, ip, c1, c0, 0\n" /* get control register */
"bic ip, ip, #0x0001\n" /* disable MMU */
"mcr p15, 0, ip, c1, c0, 0\n" /* write control register */
"mov pc, r2\n"
"nop\n"
"nop\n"
: /* no outpus */
: "r" (a0), "r" (a1), "r" (a2)
: "r0","r1","r2","ip"
);
}
/*
* clean and invalidate I & D cache ,mmu table, and then boot linux zImage
* a0 must be zero
* a1 machine type
* a2 linux zImage addr
*/
void call_linux(ulong a0, ulong a1, ulong a2)
{
ulong ip;
boot_linux_t boot_linux = (boot_linux_t)a2;
local_irq_disable();
cache_clean_invalidate();
tlb_invalidate();
__asm
{
mov ip, #0
mcr p15, 0, ip, c13, c0, 0 /* zero PID */
mcr p15, 0, ip, c7, c7, 0 /* invalidate I,D caches */
mcr p15, 0, ip, c7, c10, 4 /* drain write buffer */
mcr p15, 0, ip, c8, c7, 0 /* invalidate I,D TLBs */
mrc p15, 0, ip, c1, c0, 0 /* get control register */
bic ip, ip, #0x0001 /* disable MMU */
mcr p15, 0, ip, c1, c0, 0 /* write control register */
}
boot_linux(a0, a1, a2);
}
