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author | John Crispin <john@openwrt.org> | 2008-05-11 14:13:15 +0000 |
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committer | John Crispin <john@openwrt.org> | 2008-05-11 14:13:15 +0000 |
commit | 4d4f7d4c845901f0353c492f05c4f837dfd1e049 (patch) | |
tree | 8cad938f65f89fb196fadb1ebae436282f4ee313 /target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/incaip_wdt.S | |
parent | 2b05ed626c650657e29575f209ea80e6553f8a55 (diff) | |
download | mtk-20170518-4d4f7d4c845901f0353c492f05c4f837dfd1e049.zip mtk-20170518-4d4f7d4c845901f0353c492f05c4f837dfd1e049.tar.gz mtk-20170518-4d4f7d4c845901f0353c492f05c4f837dfd1e049.tar.bz2 |
add u-boot sources for danube
SVN-Revision: 11108
Diffstat (limited to 'target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/incaip_wdt.S')
-rw-r--r-- | target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/incaip_wdt.S | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/incaip_wdt.S b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/incaip_wdt.S new file mode 100644 index 0000000..0c6b5e2 --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/incaip_wdt.S @@ -0,0 +1,75 @@ +/* + * INCA-IP Watchdog timer management code. + * + * Copyright (c) 2003 Wolfgang Denk <wd@denx.de> + * + * 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 <config.h> +#include <version.h> +#include <asm/regdef.h> + +#ifdef CONFIG_INCA_IP + +#define WD_BASE 0xb8000000 +#define WD_CON0(value) 0x0020(value) +#define WD_CON1(value) 0x0024(value) +#define WD_DISABLE 0x00000008 +#define WD_ENABLE 0x00000000 +#define WD_WRITE_PW 0xFFFC00F8 +#define WD_WRITE_ENDINIT 0xFFFC00F3 +#define WD_WRITE_INIT 0xFFFC00F2 + + + .globl disable_incaip_wdt +disable_incaip_wdt: + li t0, WD_BASE + + /* Calculate password. + */ + lw t2, WD_CON1(t0) + and t2, 0xC + + lw t3, WD_CON0(t0) + and t3, 0xFFFFFF01 + + or t3, t2 + or t3, 0xF0 + + sw t3, WD_CON0(t0) /* write password */ + + /* Clear ENDINIT. + */ + li t1, WD_WRITE_INIT + sw t1, WD_CON0(t0) + + + li t1, WD_DISABLE + sw t1, WD_CON1(t0) /* disable watchdog */ + li t1, WD_WRITE_PW + sw t1, WD_CON0(t0) /* write password */ + li t1, WD_WRITE_ENDINIT + sw t1, WD_CON0(t0) /* end command */ + + j ra + nop + +#endif /* CONFIG_INCA_IP */ |