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- /*
- * linux/arch/sh/boot/romimage/head.S
- *
- * Board specific setup code, executed before zImage loader
- */
- .text
- #include <asm/page.h>
- .global romstart
- romstart:
- /* include board specific setup code */
- #include <mach/romimage.h>
- /* copy the empty_zero_page contents to where vmlinux expects it */
- mova empty_zero_page_src, r0
- mov.l empty_zero_page_dst, r1
- mov #(PAGE_SHIFT - 4), r4
- mov #1, r3
- shld r4, r3 /* r3 = PAGE_SIZE / 16 */
- 1:
- mov.l @r0, r4
- mov.l @(4, r0), r5
- mov.l @(8, r0), r6
- mov.l @(12, r0), r7
- add #16,r0
- mov.l r4, @r1
- mov.l r5, @(4, r1)
- mov.l r6, @(8, r1)
- mov.l r7, @(12, r1)
- dt r3
- add #16,r1
- bf 1b
- /* jump to the zImage entry point located after the zero page data */
- mov #PAGE_SHIFT, r4
- mov #1, r1
- shld r4, r1
- mova empty_zero_page_src, r0
- add r1, r0
- jmp @r0
- nop
- .align 2
- empty_zero_page_dst:
- .long _text
- empty_zero_page_src:
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