48 lines
1006 B
ArmAsm
48 lines
1006 B
ArmAsm
|
/*
|
||
|
|
* linux/arch/h8300/boot/compressed/head.S
|
||
|
|
*
|
||
|
|
* Copyright (C) 2006 Yoshinori Sato
|
||
|
|
*/
|
||
|
|
|
||
|
|
.h8300h
|
||
|
|
#include <linux/linkage.h>
|
||
|
|
|
||
|
|
#define SRAM_START 0xff4000
|
||
|
|
|
||
|
|
.section .text.startup
|
||
|
|
.global startup
|
||
|
|
startup:
|
||
|
|
mov.l #SRAM_START+0x8000, 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
|
||
|
|
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
|