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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
06706c96 YS |
2 | /* |
3 | * linux/arch/h8300/boot/compressed/head.S | |
4 | * | |
5 | * Copyright (C) 2006 Yoshinori Sato | |
6 | */ | |
7 | ||
8 | #include <linux/linkage.h> | |
9 | ||
10 | .section .text..startup,"ax" | |
11 | .global startup | |
12 | startup: | |
78f02cac | 13 | mov.l #startup, sp |
06706c96 | 14 | mov.l er0, er4 |
06706c96 YS |
15 | mov.l #__sbss, er0 |
16 | mov.l #__ebss, er1 | |
17 | sub.l er0, er1 | |
18 | shlr er1 | |
19 | shlr er1 | |
20 | sub.l er2, er2 | |
21 | 1: | |
22 | mov.l er2, @er0 | |
23 | adds #4, er0 | |
24 | dec.l #1, er1 | |
25 | bne 1b | |
26 | jsr @decompress_kernel | |
27 | mov.l er4, er0 | |
78f02cac | 28 | jmp @output |
06706c96 YS |
29 | |
30 | .align 9 | |
31 | fake_headers_as_bzImage: | |
32 | .word 0 | |
33 | .ascii "HdrS" ; header signature | |
34 | .word 0x0202 ; header version number (>= 0x0105) | |
35 | ; or else old loadlin-1.5 will fail) | |
36 | .word 0 ; default_switch | |
37 | .word 0 ; SETUPSEG | |
38 | .word 0x1000 | |
39 | .word 0 ; pointing to kernel version string | |
40 | .byte 0 ; = 0, old one (LILO, Loadlin, | |
41 | ; 0xTV: T=0 for LILO | |
42 | ; V = version | |
43 | .byte 1 ; Load flags bzImage=1 | |
44 | .word 0x8000 ; size to move, when setup is not | |
45 | .long 0x100000 ; 0x100000 = default for big kernel | |
46 | .long 0 ; address of loaded ramdisk image | |
47 | .long 0 ; its size in bytes | |
48 | ||
49 | .end |