ARM: S5PV310: Add DMC registers and map_desc

This patch adds DMC io mapping for access it and adds registers.
This is used in checking DRAM memory type.

Signed-off-by: Sunyoung Kang <sy0816.kang@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

3 files changed, 30 insertions, 0 deletions

diff --git a/arch/arm/mach-s5pv310/cpu.c b/arch/arm/mach-s5pv310/cpu.c
index 82ce4aa6d61a..283dd75effe7 100644
--- a/arch/arm/mach-s5pv310/cpu.c
+++ b/arch/arm/mach-s5pv310/cpu.c
@@ -73,6 +73,11 @@ static struct map_desc s5pv310_iodesc[] __initdata = {
                 .length         = SZ_256,
                 .type           = MT_DEVICE,
         }, {
+                .virtual        = (unsigned long)S5P_VA_DMC0,
+                .pfn            = __phys_to_pfn(S5PV310_PA_DMC0),
+                .length         = SZ_4K,
+                .type           = MT_DEVICE,
+        }, {
                 .virtual        = (unsigned long)S3C_VA_UART,
                 .pfn            = __phys_to_pfn(S3C_PA_UART),
                 .length         = SZ_512K,
diff --git a/arch/arm/mach-s5pv310/include/mach/map.h b/arch/arm/mach-s5pv310/include/mach/map.h
index 7acf4e77e92e..37294f13ca0c 100644
--- a/arch/arm/mach-s5pv310/include/mach/map.h
+++ b/arch/arm/mach-s5pv310/include/mach/map.h
@@ -44,6 +44,8 @@
 #define S5PV310_PA_WATCHDOG             (0x10060000)
 #define S5PV310_PA_RTC                  (0x10070000)
 
+#define S5PV310_PA_DMC0                 (0x10400000)
+
 #define S5PV310_PA_COMBINER             (0x10448000)
 
 #define S5PV310_PA_COREPERI             (0x10500000)
diff --git a/arch/arm/mach-s5pv310/include/mach/regs-mem.h b/arch/arm/mach-s5pv310/include/mach/regs-mem.h
new file mode 100644
index 000000000000..834227140eaa
--- /dev/null
+++ b/arch/arm/mach-s5pv310/include/mach/regs-mem.h
@@ -0,0 +1,23 @@
+/* linux/arch/arm/mach-s5pv310/include/mach/regs-mem.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com
+ *
+ * S5PV310 - SROMC and DMC register definitions
+ *
+ * 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.
+*/
+
+#ifndef __ASM_ARCH_REGS_MEM_H
+#define __ASM_ARCH_REGS_MEM_H __FILE__
+
+#include <mach/map.h>
+
+#define S5P_DMC0_MEMCON_OFFSET          0x04
+
+#define S5P_DMC0_MEMTYPE_SHIFT          8
+#define S5P_DMC0_MEMTYPE_MASK           0xF
+
+#endif /* __ASM_ARCH_REGS_MEM_H */