diff options
author | Ben Dooks <ben-linux@fluff.org> | 2007-02-11 18:31:01 +0100 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-02-11 17:36:09 +0000 |
commit | a21765a70ec06be175d3997320a83fa66fcc8955 (patch) | |
tree | 24bdbf437a9bd5b7c1af05898f5aa25dccf67fe9 /arch/arm/mach-s3c2440/dsc.c | |
parent | d19494b187b20e363f9b434b9ceab4159ac88324 (diff) |
[ARM] 4157/2: S3C24XX: move arch/arch/mach-s3c2410 into cpu components
The following patch and script moves the arch/arm/mach-s3c2410
directory into arch/arm/plat-s3c24xx for the generic core code
and inti arch/arm/mach-s3c{cpu} for the cpu/machine support files
Include directory include/asm-arm/plat-s3c24xx is added for the
core include files.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-s3c2440/dsc.c')
-rw-r--r-- | arch/arm/mach-s3c2440/dsc.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2440/dsc.c b/arch/arm/mach-s3c2440/dsc.c new file mode 100644 index 00000000000..2995ff5681b --- /dev/null +++ b/arch/arm/mach-s3c2440/dsc.c @@ -0,0 +1,54 @@ +/* linux/arch/arm/mach-s3c2440/dsc.c + * + * Copyright (c) 2004-2005 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * Samsung S3C2440 Drive Strength Control support + * + * 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/kernel.h> +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/init.h> +#include <linux/module.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <asm/hardware.h> +#include <asm/io.h> +#include <asm/irq.h> + +#include <asm/arch/regs-gpio.h> +#include <asm/arch/regs-dsc.h> + +#include <asm/plat-s3c24xx/cpu.h> +#include <asm/plat-s3c24xx/s3c2440.h> + +int s3c2440_set_dsc(unsigned int pin, unsigned int value) +{ + void __iomem *base; + unsigned long val; + unsigned long flags; + unsigned long mask; + + base = (pin & S3C2440_SELECT_DSC1) ? S3C2440_DSC1 : S3C2440_DSC0; + mask = 3 << S3C2440_DSC_GETSHIFT(pin); + + local_irq_save(flags); + + val = __raw_readl(base); + val &= ~mask; + val |= value & mask; + __raw_writel(val, base); + + local_irq_restore(flags); + return 0; +} + +EXPORT_SYMBOL(s3c2440_set_dsc); |