diff options
author | Paul Mundt <lethal@linux-sh.org> | 2010-08-16 13:32:24 +0900 |
---|---|---|
committer | Paul Mundt <lethal@linux-sh.org> | 2010-08-16 13:32:24 +0900 |
commit | bbcf6e8b66ab2fb5ddab4d0fe40c2e6a5ebe5301 (patch) | |
tree | 071fa9f86dc04a16570be367d04cff3b00c694ad /arch/mips/jz4740/timer.c | |
parent | 57682827b9a5edb52e33af0be9082b51bffcd5c7 (diff) | |
parent | da5cabf80e2433131bf0ed8993abc0f7ea618c73 (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
arch/sh/include/asm/Kbuild
drivers/Makefile
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/mips/jz4740/timer.c')
-rw-r--r-- | arch/mips/jz4740/timer.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/mips/jz4740/timer.c b/arch/mips/jz4740/timer.c new file mode 100644 index 00000000000..b2c01512905 --- /dev/null +++ b/arch/mips/jz4740/timer.c @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de> + * JZ4740 platform timer support + * + * 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. + * + * 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., + * 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> + +#include "timer.h" + +#include <asm/mach-jz4740/base.h> + +void __iomem *jz4740_timer_base; + +void jz4740_timer_enable_watchdog(void) +{ + writel(BIT(16), jz4740_timer_base + JZ_REG_TIMER_STOP_CLEAR); +} + +void jz4740_timer_disable_watchdog(void) +{ + writel(BIT(16), jz4740_timer_base + JZ_REG_TIMER_STOP_SET); +} + +void __init jz4740_timer_init(void) +{ + jz4740_timer_base = ioremap(JZ4740_TCU_BASE_ADDR, 0x100); + + if (!jz4740_timer_base) + panic("Failed to ioremap timer registers"); + + /* Disable all timer clocks except for those used as system timers */ + writel(0x000100fc, jz4740_timer_base + JZ_REG_TIMER_STOP_SET); + + /* Timer irqs are unmasked by default, mask them */ + writel(0x00ff00ff, jz4740_timer_base + JZ_REG_TIMER_MASK_SET); +} |