diff options
author | Kukjin Kim <kgene.kim@samsung.com> | 2012-02-06 09:38:19 +0900 |
---|---|---|
committer | Kukjin Kim <kgene.kim@samsung.com> | 2012-03-03 07:47:38 +0900 |
commit | 85fd6d63bf2927b9da7ab1b0d46723bfdb13808c (patch) | |
tree | 7033ac06e365209b09ba4b97eba0cf2f7ceb3312 /arch/arm/mach-s3c24xx/include/mach/system.h | |
parent | b130d5c29544fe4cedafd35b112d27a06550d844 (diff) |
ARM: S3C2410: move mach-s3c2410/* into mach-s3c24xx/
This patch moves S3C2410 stuff into mach-s3c24xx/ directory
so that we can merge the s3c24 series' directories to the
just one mach-s3c24xx/ directory.
And this patch is including following.
- re-ordered alphabetically by option text at Kconfig and Makefile
- removed unused option, MACH_N35
- fixed duplcated option name, S3C2410_DMA to S3C24XX_DMA which is
in plat-s3c24xx/
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-s3c24xx/include/mach/system.h')
-rw-r--r-- | arch/arm/mach-s3c24xx/include/mach/system.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c24xx/include/mach/system.h b/arch/arm/mach-s3c24xx/include/mach/system.h new file mode 100644 index 00000000000..5e215c1a5c8 --- /dev/null +++ b/arch/arm/mach-s3c24xx/include/mach/system.h @@ -0,0 +1,54 @@ +/* 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 <linux/io.h> +#include <mach/hardware.h> + +#include <mach/map.h> +#include <mach/idle.h> + +#include <mach/regs-clock.h> + +void (*s3c24xx_idle)(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(); +} |