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| author | Yoshinori Sato <ysato@users.sourceforge.jp> | 2015-05-10 20:26:40 +0300 |
|---|---|---|
| committer | Yoshinori Sato <ysato@users.sourceforge.jp> | 2015-06-23 07:35:52 +0300 |
| commit | 06706c96ed753f952e53fa9840fb38852d2fe37e (patch) | |
| tree | b0c870e788d6f94d608d4b18d3fa9c002b2252fe /arch/h8300/boot/compressed/head.S | |
| parent | df2078b8daa7bb15cc8e3f791389b9f44e12bb25 (diff) | |
| download | linux-06706c96ed753f952e53fa9840fb38852d2fe37e.tar.xz | |
h8300: compressed image support
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Diffstat (limited to 'arch/h8300/boot/compressed/head.S')
| -rw-r--r-- | arch/h8300/boot/compressed/head.S | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/h8300/boot/compressed/head.S b/arch/h8300/boot/compressed/head.S new file mode 100644 index 000000000000..74c0d8cc40ba --- /dev/null +++ b/arch/h8300/boot/compressed/head.S @@ -0,0 +1,48 @@ +/* + * linux/arch/h8300/boot/compressed/head.S + * + * Copyright (C) 2006 Yoshinori Sato + */ + +#include <linux/linkage.h> + + .section .text..startup,"ax" + .global startup +startup: + mov.l er0, er4 + mov.l er0, sp + mov.l #__sbss, er0 + mov.l #__ebss, er1 + sub.l er0, er1 + shlr er1 + shlr er1 + sub.l er2, er2 +1: + mov.l er2, @er0 + adds #4, er0 + dec.l #1, er1 + bne 1b + jsr @decompress_kernel + mov.l er4, er0 + jmp @0x400000 + + .align 9 +fake_headers_as_bzImage: + .word 0 + .ascii "HdrS" ; header signature + .word 0x0202 ; header version number (>= 0x0105) + ; or else old loadlin-1.5 will fail) + .word 0 ; default_switch + .word 0 ; SETUPSEG + .word 0x1000 + .word 0 ; pointing to kernel version string + .byte 0 ; = 0, old one (LILO, Loadlin, + ; 0xTV: T=0 for LILO + ; V = version + .byte 1 ; Load flags bzImage=1 + .word 0x8000 ; size to move, when setup is not + .long 0x100000 ; 0x100000 = default for big kernel + .long 0 ; address of loaded ramdisk image + .long 0 ; its size in bytes + + .end |