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| author | Wolfgang Denk <wd@pollux.denx.de> | 2006-11-27 16:13:00 +0100 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2006-11-27 16:13:00 +0100 |
| commit | d3c5e8b2f5945d93de8f23b053e9dcd033983245 (patch) | |
| tree | 72c292c41bc0dfadd6f634fe03e697d8a4473487 /cpu/at32ap/entry.S | |
| parent | 98280e3d431db77d92219438b8840853bd7cb412 (diff) | |
| parent | a9398e018593782c5fa7d0741955fc1256b34c1e (diff) | |
| download | u-boot-imx-d3c5e8b2f5945d93de8f23b053e9dcd033983245.zip u-boot-imx-d3c5e8b2f5945d93de8f23b053e9dcd033983245.tar.gz u-boot-imx-d3c5e8b2f5945d93de8f23b053e9dcd033983245.tar.bz2 | |
Merge with /home/wd/git/u-boot/master
Diffstat (limited to 'cpu/at32ap/entry.S')
| -rw-r--r-- | cpu/at32ap/entry.S | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/cpu/at32ap/entry.S b/cpu/at32ap/entry.S new file mode 100644 index 0000000..b52d798 --- /dev/null +++ b/cpu/at32ap/entry.S @@ -0,0 +1,65 @@ +/* + * 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. + */ + mov r8, lo(timer_overflow) + orh r8, hi(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 |