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authorAlexander Shiyan <shc_work@mail.ru>2012-11-17 17:57:19 +0400
committerOlof Johansson <olof@lixom.net>2012-11-21 09:57:44 -0800
commite377ca1e32f66378cc6d0562851bfc51126865ea (patch)
tree132588c9d007c6fbc47ca52e0c2b05f77181f5d0 /arch/arm/mach-clps711x
parent87c37b51ade7d1296ab99ed8f237637bed7779c7 (diff)
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>
Diffstat (limited to 'arch/arm/mach-clps711x')
-rw-r--r--arch/arm/mach-clps711x/include/mach/hardware.h3
-rw-r--r--arch/arm/mach-clps711x/p720t.c50
2 files changed, 51 insertions, 2 deletions
diff --git a/arch/arm/mach-clps711x/include/mach/hardware.h b/arch/arm/mach-clps711x/include/mach/hardware.h
index 4e273f2a5cb..6acf714031e 100644
--- 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
index 34c8ee9ebb5..e25f10ed560 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));