/* * Copyright (C) 2007,2008 Nobuhiro Iwamatsu <iwamatsu@nigauri.org> * Copyright (C) 2008 Renesas Solutions Corp. * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include <config.h> #include <version.h> .text .align 2 .global _start _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 #(_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 */ 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 (_start - CONFIG_SYS_GBL_DATA_SIZE) ._stack_init: .long (_start - CONFIG_SYS_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN - 16) ._sh_generic_init: .long sh_generic_init