[PATCH v2 4/4] s3c: mach-real6410: add nand support

Darius Augulis augulis.darius at gmail.com
Fri Aug 6 13:23:11 EDT 2010


Add nand device support and mtd partition table
for mach-real6410

Signed-off-by: Darius Augulis <augulis.darius at gmail.com>
---

Changelog since v1:
 - Fixed errors reported by checkpatch.pl
 - Spaces in indentation replaced by TABs

 arch/arm/mach-s3c64xx/Kconfig         |    1 +
 arch/arm/mach-s3c64xx/mach-real6410.c |   41 +++++++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
index f5c77e5..7ac93ce 100644
--- a/arch/arm/mach-s3c64xx/Kconfig
+++ b/arch/arm/mach-s3c64xx/Kconfig
@@ -93,6 +93,7 @@ config MACH_REAL6410
 	select CPU_S3C6410
 	select S3C_DEV_HSMMC
 	select S3C_DEV_HSMMC1
+	select S3C_DEV_NAND
 	select S3C64XX_SETUP_SDHCI
 	help
 	  Machine support for the CoreWind REAL6410
diff --git a/arch/arm/mach-s3c64xx/mach-real6410.c b/arch/arm/mach-s3c64xx/mach-real6410.c
index bd52605..7eafb23 100644
--- a/arch/arm/mach-s3c64xx/mach-real6410.c
+++ b/arch/arm/mach-s3c64xx/mach-real6410.c
@@ -18,6 +18,8 @@
 #include <linux/list.h>
 #include <linux/init.h>
 #include <linux/dm9000.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
 #include <asm/mach-types.h>
@@ -28,6 +30,7 @@
 #include <mach/regs-srom.h>
 #include <plat/cpu.h>
 #include <plat/devs.h>
+#include <plat/nand.h>
 #include <plat/regs-serial.h>
 
 #define UCON (S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK)
@@ -99,10 +102,46 @@ static struct platform_device real6410_device_eth = {
 	},
 };
 
+static struct mtd_partition real6410_nand_part[] = {
+	[0] = {
+		.name	= "uboot",
+		.size	= SZ_1M,
+		.offset	= 0,
+	},
+	[1] = {
+		.name	= "kernel",
+		.size	= SZ_2M,
+		.offset	= SZ_1M,
+	},
+	[2] = {
+		.name	= "rootfs",
+		.size	= MTDPART_SIZ_FULL,
+		.offset	= SZ_1M + SZ_2M,
+	},
+};
+
+static struct s3c2410_nand_set real6410_nand_sets[] = {
+	[0] = {
+		.name		= "nand",
+		.nr_chips	= 1,
+		.nr_partitions	= ARRAY_SIZE(real6410_nand_part),
+		.partitions	= real6410_nand_part,
+	},
+};
+
+static struct s3c2410_platform_nand real6410_nand_info = {
+	.tacls		= 25,
+	.twrph0		= 55,
+	.twrph1		= 40,
+	.nr_sets	= ARRAY_SIZE(real6410_nand_sets),
+	.sets		= real6410_nand_sets,
+};
+
 static struct platform_device *real6410_devices[] __initdata = {
 	&real6410_device_eth,
 	&s3c_device_hsmmc0,
 	&s3c_device_hsmmc1,
+	&s3c_device_nand,
 };
 
 static void __init real6410_map_io(void)
@@ -116,6 +155,8 @@ static void __init real6410_machine_init(void)
 {
 	u32 cs1;
 
+	s3c_nand_set_platdata(&real6410_nand_info);
+
 	/* configure nCS1 width to 16 bits */
 
 	cs1 = __raw_readl(S3C64XX_SROM_BW) &




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