ARM: S3C64XX: Use S3C64XX_SDMA_SEL register name instead of numeric address

This patch adds a definition of S3C64XX_SDMA_SEL register and modifies
the s3c64xx DMA driver to use it instead of a magic register address.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

2 files changed, 3 insertions, 1 deletions

diff --git a/arch/arm/mach-s3c64xx/dma.c b/arch/arm/mach-s3c64xx/dma.c
index 204bfafe4bfc..0849f2d3b105 100644
--- a/arch/arm/mach-s3c64xx/dma.c
+++ b/arch/arm/mach-s3c64xx/dma.c
@@ -740,7 +740,7 @@ static int __init s3c64xx_dma_init(void)
         }
 
         /* Set all DMA configuration to be DMA, not SDMA */
-        writel(0xffffff, S3C_SYSREG(0x110));
+        writel(0xffffff, S3C64XX_SDMA_SEL);
 
         /* Register standard DMA controllers */
         s3c64xx_dma_init1(0, DMACH_UART0, IRQ_DMA0, 0x75000000);
diff --git a/arch/arm/mach-s3c64xx/include/mach/regs-sys.h b/arch/arm/mach-s3c64xx/include/mach/regs-sys.h
index 69b78d9f83b8..774e0de31400 100644
--- a/arch/arm/mach-s3c64xx/include/mach/regs-sys.h
+++ b/arch/arm/mach-s3c64xx/include/mach/regs-sys.h
@@ -21,6 +21,8 @@
 #define S3C64XX_AHB_CON1        S3C_SYSREG(0x104)
 #define S3C64XX_AHB_CON2        S3C_SYSREG(0x108)
 
+#define S3C64XX_SDMA_SEL        S3C_SYSREG(0x110)
+
 #define S3C64XX_OTHERS          S3C_SYSREG(0x900)
 
 #define S3C64XX_OTHERS_USBMASK  (1 << 16)