[ARM] 3442/1: [S3C2410] SMDK: NAND device setup

Patch from Ben Dooks

Add SMDK2410/SMDK2440 NAND device information
and default partition table.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/arch/arm/mach-s3c2410/common-smdk.c b/arch/arm/mach-s3c2410/common-smdk.c
index f903dc2..36b8291 100644 (file)
--- a/arch/arm/mach-s3c2410/common-smdk.c
+++ b/arch/arm/mach-s3c2410/common-smdk.c
@@ -20,6 +20,11 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/nand_ecc.h>
+#include <linux/mtd/partitions.h>
+
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
@@ -27,12 +32,86 @@
 #include <asm/hardware.h>
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/mach-types.h>
 
 #include <asm/arch/regs-gpio.h>
 
+#include <asm/arch/nand.h>
+
+#include "devs.h"
 #include "pm.h"
 
+/* NAND parititon from 2.4.18-swl5 */
+
+static struct mtd_partition smdk_default_nand_part[] = {
+       [0] = {
+               .name   = "Boot Agent",
+               .size   = SZ_16K,
+               .offset = 0,
+       },
+       [1] = {
+               .name   = "S3C2410 flash parition 1",
+               .offset = 0,
+               .size   = SZ_2M,
+       },
+       [2] = {
+               .name   = "S3C2410 flash partition 2",
+               .offset = SZ_4M,
+               .size   = SZ_4M,
+       },
+       [3] = {
+               .name   = "S3C2410 flash partition 3",
+               .offset = SZ_8M,
+               .size   = SZ_2M,
+       },
+       [4] = {
+               .name   = "S3C2410 flash partition 4",
+               .offset = SZ_1M * 10,
+               .size   = SZ_4M,
+       },
+       [5] = {
+               .name   = "S3C2410 flash partition 5",
+               .offset = SZ_1M * 14,
+               .size   = SZ_1M * 10,
+       },
+       [6] = {
+               .name   = "S3C2410 flash partition 6",
+               .offset = SZ_1M * 24,
+               .size   = SZ_1M * 24,
+       },
+       [7] = {
+               .name   = "S3C2410 flash partition 7",
+               .offset = SZ_1M * 48,
+               .size   = SZ_16M,
+       }
+};
+
+static struct s3c2410_nand_set smdk_nand_sets[] = {
+       [0] = {
+               .name           = "NAND",
+               .nr_chips       = 1,
+               .nr_partitions  = ARRAY_SIZE(smdk_default_nand_part),
+               .partitions     = smdk_default_nand_part,
+       },
+};
+
+/* choose a set of timings which should suit most 512Mbit
+ * chips and beyond.
+*/
+
+static struct s3c2410_platform_nand smdk_nand_info = {
+       .tacls          = 20,
+       .twrph0         = 60,
+       .twrph1         = 20,
+       .nr_sets        = ARRAY_SIZE(smdk_nand_sets),
+       .sets           = smdk_nand_sets,
+};
+
+/* devices we initialise */
+
+static struct platform_device __initdata *smdk_devs[] = {
+       &s3c_device_nand,
+};
+
 void __init smdk_machine_init(void)
 {
        /* Configure the LEDs (even if we have no LED support)*/
@@ -47,5 +126,9 @@ void __init smdk_machine_init(void)
        s3c2410_gpio_setpin(S3C2410_GPF6, 1);
        s3c2410_gpio_setpin(S3C2410_GPF7, 1);
 
+       s3c_device_nand.dev.platform_data = &smdk_nand_info;
+
+       platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs));
+
        s3c2410_pm_init();
 }