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/*
#####ECOSGPLCOPYRIGHTBEGIN####
## -------------------------------------------
## This file is part of eCos, the Embedded Configurable Operating System.
## Copyright (C) 2008 Øyvind Harboe
##
## eCos 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 or (at your option) any later version.
##
## eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
## 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
##
## As a special exception, if other files instantiate templates or use macros
## or inline functions from this file, or you compile this file and link it
## with other works to produce a work based on this file, this file does not
## by itself cause the resulting work to be covered by the GNU General Public
## License. However the source code for this file must still be made available
## in accordance with section (3) of the GNU General Public License.
##
## This exception does not invalidate any other reasons why a work based on
## this file might be covered by the GNU General Public License.
## -------------------------------------------
#####ECOSGPLCOPYRIGHTEND####
*/
/*
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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