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/***************************************************************************
* Copyright (C) 2008 Øyvind Harboe *
* oyvind.harboe@zylin.com *
* *
* 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. *
***************************************************************************/
/*
Jump table for flash driver
Registers in ARM callling convention is to place args in registers
starting at r0.
So for:
void foo(int a, int b, int c).
a=r0
b=r1
c=r2
*/
.global _stack_base
.global _stack_start
.global _workarea
.global _start
.global _start_bss_clear
_start:
// offset=0
// int erase(void *address, int len)
ldr sp,=_stack_start
bl erase
nop // Stop CPU here using hw breakpoint
// offset=0xc
// int program(void *buffer, void *address, int len)
ldr sp,=_stack_start
bl program
nop // Stop CPU here using hw breakpoint
// offset=0x18
ldr r0,=_workarea
nop // Stop CPU here using hw breakpoint
// offset=0x20
// int init() - returns error message if the flash chip can't be detected
ldr sp,=_stack_start
bl init
nop // Stop CPU here using hw breakpoint
.section ".bss"
.balign 4
_stack_base:
.rept 4096
.byte 0
.endr
_stack_start:
.balign 4
_workarea:
.rept 8192
.byte 0
.endr
// NB!!! we clear bss while the stack is in use, so we start BSS clearing here !!! :-)
_start_bss_clear:
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