u-boot/arch/sh/cpu/sh2/start.S
Simon Glass f41e6088eb sh: Fix build errors for generic board
This includes the following fixes:
- Define needed __init_end symbol - see initr_reloc_global_data()
- Drop SH-specific struct bd_info
- Add an empty relocate_code() function

This prevents build errors with generic board, but the code will still need
work. Perhaps this is a better alternative than deleting the code.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-05-27 15:39:51 -04:00

66 lines
1.3 KiB
ArmAsm

/*
* Copyright (C) 2007,2008 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* Copyright (C) 2008 Renesas Solutions Corp.
* SPDX-License-Identifier: GPL-2.0+
*/
#include <asm-offsets.h>
#include <config.h>
.text
.align 2
.global _start
_sh_start:
.long 0x00000010 /* Ppower ON reset PC*/
.long 0x00000000
.long 0x00000010 /* Manual reset PC */
.long 0x00000000
_init:
mov.l ._lowlevel_init, r0
100: bsrf r0
nop
bsr 1f
nop
1: sts pr, r5
mov.l ._reloc_dst, r4
add #(_sh_start-1b), r5
mov.l ._reloc_dst_end, r6
2: mov.l @r5+, r1
mov.l r1, @r4
add #4, r4
cmp/hs r6, r4
bf 2b
mov.l ._bss_start, r4
mov.l ._bss_end, r5
mov #0, r1
3: mov.l r1, @r4 /* bss clear */
add #4, r4
cmp/hs r5, r4
bf 3b
mov.l ._gd_init, r13 /* global data */
mov.l ._stack_init, r15 /* stack */
#TODO(sh maintainer): Fix this up to call the correct code
#mov.l ._sh_generic_init, r0
#jsr @r0
nop
loop:
bra loop
.align 2
._lowlevel_init: .long (lowlevel_init - (100b + 4))
._reloc_dst: .long reloc_dst
._reloc_dst_end: .long reloc_dst_end
._bss_start: .long bss_start
._bss_end: .long bss_end
._gd_init: .long (_sh_start - GENERATED_GBL_DATA_SIZE)
._stack_init: .long (_sh_start - GENERATED_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN - 16)
#._sh_generic_init: .long sh_generic_init