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>
git-mirror · Nov 21, 2012 · e377ca1 · e377ca1
1 parent 87c37b5
commit e377ca1
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Showing 5 changed files with 51 additions and 185 deletions.
diff --git a/arch/arm/mach-clps711x/include/mach/hardware.h b/arch/arm/mach-clps711x/include/mach/hardware.h
@@ -67,6 +67,9 @@
 #define CLPS711X_SRAM_BASE	CS6_PHYS_BASE
 #define CLPS711X_SRAM_SIZE	(48 * 1024)
 
+#define CLPS711X_SDRAM0_BASE	(0xc0000000)
+#define CLPS711X_SDRAM1_BASE	(0xd0000000)
+
 #if defined (CONFIG_ARCH_EDB7211)
 
 /* The extra 8 lines of the keyboard matrix are wired to chip select 3 */

diff --git 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));

diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
@@ -79,12 +79,6 @@ config MTD_NAND_GPIO
 	help
 	  This enables a GPIO based NAND flash driver.
 
-config MTD_NAND_SPIA
-	tristate "NAND Flash device on SPIA board"
-	depends on ARCH_P720T
-	help
-	  If you had to ask, you don't have one. Say 'N'.
-
 config MTD_NAND_AMS_DELTA
 	tristate "NAND Flash device on Amstrad E3"
 	depends on MACH_AMS_DELTA

diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
@@ -9,7 +9,6 @@ obj-$(CONFIG_MTD_NAND_IDS)		+= nand_ids.o
 obj-$(CONFIG_MTD_SM_COMMON) 		+= sm_common.o
 
 obj-$(CONFIG_MTD_NAND_CAFE)		+= cafe_nand.o
-obj-$(CONFIG_MTD_NAND_SPIA)		+= spia.o
 obj-$(CONFIG_MTD_NAND_AMS_DELTA)	+= ams-delta.o
 obj-$(CONFIG_MTD_NAND_DENALI)		+= denali.o
 obj-$(CONFIG_MTD_NAND_AU1550)		+= au1550nd.o

diff --git a/drivers/mtd/nand/spia.c b/drivers/mtd/nand/spia.c