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| author | Magnus Damm <damm@opensource.se> | 2010-05-18 14:42:40 +0000 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-05-31 13:11:34 +0900 |
| commit | b34bce45530ca897aea35915e0e42eb3c8047b52 (patch) | |
| tree | b59dfbab04aa5225a6c3e26cc7358ecf7c825ea5 /arch/sh/boot | |
| parent | 1238c684325d9710544af6f0d11bf7cd6efd5925 (diff) | |
| download | op-kernel-dev-b34bce45530ca897aea35915e0e42eb3c8047b52.zip op-kernel-dev-b34bce45530ca897aea35915e0e42eb3c8047b52.tar.gz | |
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: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/boot')
| -rw-r--r-- | arch/sh/boot/romimage/head.S | 12 | ||||
| -rw-r--r-- | arch/sh/boot/romimage/vmlinux.scr | 1 |
2 files changed, 10 insertions, 3 deletions
diff --git a/arch/sh/boot/romimage/head.S b/arch/sh/boot/romimage/head.S index 93e779a..65b8256 100644 --- a/arch/sh/boot/romimage/head.S +++ b/arch/sh/boot/romimage/head.S @@ -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 diff --git a/arch/sh/boot/romimage/vmlinux.scr b/arch/sh/boot/romimage/vmlinux.scr index 287c08f..ea27298 100644 --- a/arch/sh/boot/romimage/vmlinux.scr +++ b/arch/sh/boot/romimage/vmlinux.scr @@ -1,6 +1,7 @@ SECTIONS { .text : { + zero_page_pos = .; *(.data) } } |
