ARM: clps711x: p720t: Special driver for handling NAND memory is removed

This patch provide migration to using "gpio-nand" driver instead of using
special driver for handling NAND memory.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Olof Johansson <olof@lixom.net>

1 files changed, 48 insertions, 2 deletions

diff --git a/arch/arm/mach-clps711x/p720t.c b/arch/arm/mach-clps711x/p720t.c
index 34c8ee9ebb5e..e25f10ed5606 100644
--- a/arch/arm/mach-clps711x/p720t.c
+++ b/arch/arm/mach-clps711x/p720t.c
@@ -26,6 +26,8 @@
 #include <linux/slab.h>
 #include <linux/leds.h>
 #include <linux/platform_device.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand-gpio.h>
 
 #include <mach/hardware.h>
 #include <asm/pgtable.h>
@@ -41,7 +43,50 @@
 
 #include "common.h"
 
-#define GPIO_USERLED    CLPS711X_GPIO(3, 0)
+#define P720T_USERLED           CLPS711X_GPIO(3, 0)
+#define P720T_NAND_CLE          CLPS711X_GPIO(4, 0)
+#define P720T_NAND_ALE          CLPS711X_GPIO(4, 1)
+#define P720T_NAND_NCE          CLPS711X_GPIO(4, 2)
+
+#define P720T_NAND_BASE         (CLPS711X_SDRAM1_BASE)
+
+static struct resource p720t_nand_resource[] __initdata = {
+        DEFINE_RES_MEM(P720T_NAND_BASE, SZ_4),
+};
+
+static struct mtd_partition p720t_nand_parts[] __initdata = {
+        {
+                .name   = "Flash partition 1",
+                .offset = 0,
+                .size   = SZ_2M,
+        },
+        {
+                .name   = "Flash partition 2",
+                .offset = MTDPART_OFS_APPEND,
+                .size   = MTDPART_SIZ_FULL,
+        },
+};
+
+static struct gpio_nand_platdata p720t_nand_pdata __initdata = {
+        .gpio_rdy       = -1,
+        .gpio_nce       = P720T_NAND_NCE,
+        .gpio_ale       = P720T_NAND_ALE,
+        .gpio_cle       = P720T_NAND_CLE,
+        .gpio_nwp       = -1,
+        .chip_delay     = 15,
+        .parts          = p720t_nand_parts,
+        .num_parts      = ARRAY_SIZE(p720t_nand_parts),
+};
+
+static struct platform_device p720t_nand_pdev __initdata = {
+        .name           = "gpio-nand",
+        .id             = -1,
+        .resource       = p720t_nand_resource,
+        .num_resources  = ARRAY_SIZE(p720t_nand_resource),
+        .dev            = {
+                .platform_data = &p720t_nand_pdata,
+        },
+};
 
 static void p720t_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
 {
@@ -127,7 +172,7 @@ static struct gpio_led p720t_gpio_leds[] = {
         {
                 .name                   = "User LED",
                 .default_trigger        = "heartbeat",
-                .gpio                   = GPIO_USERLED,
+                .gpio                   = P720T_USERLED,
         },
 };
 
@@ -138,6 +183,7 @@ static struct gpio_led_platform_data p720t_gpio_led_pdata __initdata = {
 
 static void __init p720t_init(void)
 {
+        platform_device_register(&p720t_nand_pdev);
         platform_device_register_data(&platform_bus, "platform-lcd", 0,
                                       &p720t_lcd_power_pdata,
                                       sizeof(p720t_lcd_power_pdata));