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Commit b34bce45 authored by Magnus Damm's avatar Magnus Damm Committed by Paul Mundt
Browse files

sh: allow romImage data between head.S and the zero page 



Extend the romImage code to allow putting data between
the head.S file and the empty_zero_page. Needed in the
case of more advanced loader code in a separate C file.

Signed-off-by: default avatarMagnus Damm <damm@opensource.se>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 1238c684

arch/sh/boot/romimage/head.S

+9 −3
Original line number Diff line number Diff line
@@ -13,7 +13,9 @@ romstart: 
#include <mach/romimage.h>



	/* copy the empty_zero_page contents to where vmlinux expects it */

	mova	empty_zero_page_src, r0

	mova	extra_data_pos, r0

	mov.l	extra_data_size, r1

	add	r1, r0

	mov.l	empty_zero_page_dst, r1

	mov	#(PAGE_SHIFT - 4), r4

	mov	#1, r3
@@ -37,7 +39,9 @@ romstart: 
	mov	#PAGE_SHIFT, r4

	mov	#1, r1

	shld	r4, r1

	mova	empty_zero_page_src, r0

	mova	extra_data_pos, r0

	add	r1, r0

	mov.l	extra_data_size, r1

	add	r1, r0

	jmp	@r0

	 nop
@@ -45,4 +49,6 @@ romstart: 
	.align 2

empty_zero_page_dst:

	.long	_text

empty_zero_page_src:
 
extra_data_pos:

extra_data_size:

	.long	zero_page_pos - extra_data_pos

arch/sh/boot/romimage/vmlinux.scr

+1 −0
Original line number Diff line number Diff line 
SECTIONS

{

  .text : {

	zero_page_pos = .;

	*(.data)

	}

}