diff options
| author | Daniel Schwierzeck <daniel.schwierzeck@googlemail.com> | 2011-03-28 18:33:55 +0200 |
|---|---|---|
| committer | Shinya Kuribayashi <skuribay@pobox.com> | 2011-04-02 22:07:12 +0900 |
| commit | 91809608a44f7d90be4c630f09c9de54cc3852d8 (patch) | |
| tree | 83daddf1e86bd9077401f0186c39226c2d398434 /arch/mips/cpu/mips32/incaip_wdt.S | |
| parent | b38a569901a617a1249ceac15a40a2306388b139 (diff) | |
MIPS: Move content of arch/mips/cpu to arch/mips/cpu/mips32
All current CPUs and SoCs are based on MIPS32 arch. The complete
code resides in the global arch/mips/cpu directory. This is not
suitable if other MIPS architectures like MIPS64 or Octeon should
be supported in the future.
To achieve this the current CPU code is moved to its own mips32
subdirectory. All MIPS32 boards have to use mips32 as config switch
in board.cfg.
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Thomas Lange <thomas@corelatus.se>
Cc: Vlad Lungu <vlad.lungu@windriver.com>
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
Diffstat (limited to 'arch/mips/cpu/mips32/incaip_wdt.S')
| -rw-r--r-- | arch/mips/cpu/mips32/incaip_wdt.S | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/arch/mips/cpu/mips32/incaip_wdt.S b/arch/mips/cpu/mips32/incaip_wdt.S new file mode 100644 index 0000000000..3ade3cd6fd --- /dev/null +++ b/arch/mips/cpu/mips32/incaip_wdt.S @@ -0,0 +1,71 @@ +/* + * 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 <asm/regdef.h> + + +#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 */ + + jr ra + nop |