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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /arch/arm/mach-s3c2440/dsc.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'arch/arm/mach-s3c2440/dsc.c')
-rw-r--r--arch/arm/mach-s3c2440/dsc.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2440/dsc.c b/arch/arm/mach-s3c2440/dsc.c
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+++ b/arch/arm/mach-s3c2440/dsc.c
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+/* 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 <linux/io.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <mach/hardware.h>
+#include <asm/irq.h>
+
+#include <mach/regs-gpio.h>
+#include <mach/regs-dsc.h>
+
+#include <plat/cpu.h>
+#include <plat/s3c244x.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);