diff options
author | Ben Dooks <ben-linux@fluff.org> | 2008-08-08 21:10:12 +0100 |
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committer | Ben Dooks <ben-linux@fluff.org> | 2008-08-08 21:10:12 +0100 |
commit | af7a535688a758d15f06a98833e6a143b29af9de (patch) | |
tree | bac5ab210bbbbe276f0e44ed84194d7c8bb16aae /arch/arm/mach-s3c2410/include/mach/system.h | |
parent | 0c17e4ceedd35c78b1c7413dbd16279a350be6bc (diff) | |
parent | c41107c2d4fd31924533f4dbc4c3428acc2b5894 (diff) |
Merge http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm into for-rmk
Diffstat (limited to 'arch/arm/mach-s3c2410/include/mach/system.h')
-rw-r--r-- | arch/arm/mach-s3c2410/include/mach/system.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2410/include/mach/system.h b/arch/arm/mach-s3c2410/include/mach/system.h new file mode 100644 index 00000000000..e9f676bc011 --- /dev/null +++ b/arch/arm/mach-s3c2410/include/mach/system.h @@ -0,0 +1,58 @@ +/* arch/arm/mach-s3c2410/include/mach/system.h + * + * Copyright (c) 2003 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * S3C2410 - System function defines and includes + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include <mach/hardware.h> +#include <asm/io.h> + +#include <mach/map.h> +#include <mach/idle.h> +#include <mach/reset.h> + +#include <mach/regs-clock.h> + +void (*s3c24xx_idle)(void); +void (*s3c24xx_reset_hook)(void); + +void s3c24xx_default_idle(void) +{ + unsigned long tmp; + int i; + + /* idle the system by using the idle mode which will wait for an + * interrupt to happen before restarting the system. + */ + + /* Warning: going into idle state upsets jtag scanning */ + + __raw_writel(__raw_readl(S3C2410_CLKCON) | S3C2410_CLKCON_IDLE, + S3C2410_CLKCON); + + /* the samsung port seems to do a loop and then unset idle.. */ + for (i = 0; i < 50; i++) { + tmp += __raw_readl(S3C2410_CLKCON); /* ensure loop not optimised out */ + } + + /* this bit is not cleared on re-start... */ + + __raw_writel(__raw_readl(S3C2410_CLKCON) & ~S3C2410_CLKCON_IDLE, + S3C2410_CLKCON); +} + +static void arch_idle(void) +{ + if (s3c24xx_idle != NULL) + (s3c24xx_idle)(); + else + s3c24xx_default_idle(); +} + +#include <mach/system-reset.h> |