mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-11 13:56:30 +00:00
1f4f2121c2
Relocate the u-boot image into SDRAM like everyone else does. This means that we can handle much larger .data and .bss than we used to. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
64 lines
1.7 KiB
ArmAsm
64 lines
1.7 KiB
ArmAsm
/*
|
|
* Copyright (C) 2004-2006 Atmel Corporation
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* 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 <asm/sysreg.h>
|
|
#include <asm/ptrace.h>
|
|
|
|
.section .text.exception,"ax"
|
|
.global _evba
|
|
.type _evba,@function
|
|
.align 10
|
|
_evba:
|
|
.irp x,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16
|
|
.align 2
|
|
rjmp unknown_exception
|
|
.endr
|
|
|
|
.global timer_interrupt_handler
|
|
.type timer_interrupt_handler,@function
|
|
.align 2
|
|
timer_interrupt_handler:
|
|
/*
|
|
* Increment timer_overflow and re-write COMPARE with 0xffffffff.
|
|
*
|
|
* We're running at interrupt level 3, so we don't need to save
|
|
* r8-r12 or lr to the stack.
|
|
*/
|
|
lda.w r8, timer_overflow
|
|
ld.w r9, r8[0]
|
|
mov r10, -1
|
|
mtsr SYSREG_COMPARE, r10
|
|
sub r9, -1
|
|
st.w r8[0], r9
|
|
rete
|
|
|
|
.type unknown_exception, @function
|
|
unknown_exception:
|
|
pushm r0-r12
|
|
sub r8, sp, REG_R12 - REG_R0 - 4
|
|
mov r9, lr
|
|
mfsr r10, SYSREG_RAR_EX
|
|
mfsr r11, SYSREG_RSR_EX
|
|
pushm r8-r11
|
|
mfsr r12, SYSREG_ECR
|
|
mov r11, sp
|
|
rcall do_unknown_exception
|
|
1: rjmp 1b
|