From: Sunyoung Kang <sy0816.kang@xxxxxxxxxxx>
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@xxxxxxxxxxx>
Signed-off-by: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
---
arch/arm/mach-s5pv310/cpu.c | 5 +++++
arch/arm/mach-s5pv310/include/mach/map.h | 2 ++
arch/arm/mach-s5pv310/include/mach/regs-mem.h | 23 +++++++++++++++++++++++
3 files changed, 30 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-s5pv310/include/mach/regs-mem.h
diff --git a/arch/arm/mach-s5pv310/cpu.c b/arch/arm/mach-s5pv310/cpu.c
index 82ce4aa..283dd75 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 7acf4e7..37294f1 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 0000000..8342271
--- /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 */
--
1.6.2.5
--
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