1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * Copyright (C) 2016 Vladimir Zapolskiy <vz@mleia.com>
4 * Copyright (C) 2007, 2010 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
5 */
6
7#include <asm-offsets.h>
8#include <config.h>
9
10	.text
11	.align	2
12
13	.global	_start
14_start:
15	mov.l	._lowlevel_init, r0
16100:	bsrf	r0
17	nop
18
19	bsr	1f
20	nop
211:	sts	pr, r5
22	mov.l	._reloc_dst, r4
23	add	#(_start-1b), r5
24	mov.l	._reloc_dst_end, r6
25#ifdef CONFIG_OF_SEPARATE
26	mov.l	._reloc_size, r0
27	add	r5, r0
28	add	#4, r0
29	mov.l	@r0, r0
30	swap.b	r0, r0
31	swap.w	r0, r0
32	swap.b	r0, r0
33	add	#4, r0
34	add	r0, r6
35#endif
36
372:	mov.l	@r5+, r1
38	mov.l	r1, @r4
39	add	#4, r4
40	cmp/hs	r6, r4
41	bf	2b
42
43#ifndef CONFIG_OF_SEPARATE
44	mov.l	._bss_start, r4
45	mov.l	._bss_end, r5
46	mov	#0, r1
47
483:	mov.l	r1, @r4			/* bss clear */
49	add	#4, r4
50	cmp/hs	r5, r4
51	bf	3b
52#endif
53
54	mov.l	._gd_init, r13		/* global data */
55	mov.l	._stack_init, r15	/* stack */
56#if CONFIG_VAL(SYS_MALLOC_F_LEN)
57	mov.l	._gd_malloc_base, r14
58	mov.l	r15, @r14
59#endif
60	mov.l	._sh_generic_init, r0
61	jsr	@r0
62	mov     #0, r4
63
64loop:
65	bra	loop
66
67	.align	2
68
69._lowlevel_init:	.long	(lowlevel_init - (100b + 4))
70._reloc_dst:		.long	_start
71._reloc_dst_end:	.long	reloc_dst_end
72._reloc_size:		.long	(_end - _start)
73._bss_start:		.long	bss_start
74._bss_end:		.long	bss_end
75._gd_init:		.long	(_start - GENERATED_GBL_DATA_SIZE)
76#if CONFIG_VAL(SYS_MALLOC_F_LEN)
77._gd_malloc_base:	.long	(_start - GENERATED_GBL_DATA_SIZE + GD_MALLOC_BASE)
78#endif
79._stack_init:		.long	(_start - GENERATED_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN - 16)
80._sh_generic_init:	.long	board_init_f
81