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authorAlexander Shiyan <shc_work@mail.ru>2012-11-17 17:57:17 +0400
committerOlof Johansson <olof@lixom.net>2012-11-21 21:57:43 +0400
commit90383e0ac2ae3df283f2b56997040f71f6d1df08 (patch)
treef4d74f00d18f40f120238cb7a762c676e07c6fe1 /arch/arm/mach-clps711x
parent49e67de364ea7b2dd69066c95990e686d4de6154 (diff)
downloadlinux-90383e0ac2ae3df283f2b56997040f71f6d1df08.tar.xz
ARM: clps711x: autcpu12: Special driver for handling NAND memory is removed
This patch provide migration to using "gpio-nand" and "basic-mmio-gpio" drivers 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/autcpu12.c98
-rw-r--r--arch/arm/mach-clps711x/include/mach/autcpu12.h10
2 files changed, 98 insertions, 10 deletions
diff --git a/arch/arm/mach-clps711x/autcpu12.c b/arch/arm/mach-clps711x/autcpu12.c
index 3de19554d800..3fbf43f72589 100644
--- a/arch/arm/mach-clps711x/autcpu12.c
+++ b/arch/arm/mach-clps711x/autcpu12.c
@@ -23,9 +23,13 @@
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/io.h>
+#include <linux/gpio.h>
#include <linux/ioport.h>
#include <linux/interrupt.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand-gpio.h>
#include <linux/platform_device.h>
+#include <linux/basic_mmio_gpio.h>
#include <mach/hardware.h>
#include <asm/sizes.h>
@@ -43,6 +47,15 @@
#define AUTCPU12_CS8900_BASE (CS2_PHYS_BASE + 0x300)
#define AUTCPU12_CS8900_IRQ (IRQ_EINT3)
+#define AUTCPU12_SMC_BASE (CS1_PHYS_BASE + 0x06000000)
+#define AUTCPU12_SMC_SEL_BASE (AUTCPU12_SMC_BASE + 0x10)
+
+#define AUTCPU12_MMGPIO_BASE (CLPS711X_NR_GPIO)
+#define AUTCPU12_SMC_NCE (AUTCPU12_MMGPIO_BASE + 0) /* Bit 0 */
+#define AUTCPU12_SMC_RDY CLPS711X_GPIO(1, 2)
+#define AUTCPU12_SMC_ALE CLPS711X_GPIO(1, 3)
+#define AUTCPU12_SMC_CLE CLPS711X_GPIO(1, 3)
+
static struct resource autcpu12_cs8900_resource[] __initdata = {
DEFINE_RES_MEM(AUTCPU12_CS8900_BASE, SZ_1K),
DEFINE_RES_IRQ(AUTCPU12_CS8900_IRQ),
@@ -59,14 +72,98 @@ static struct platform_device autcpu12_nvram_pdev __initdata = {
.num_resources = ARRAY_SIZE(autcpu12_nvram_resource),
};
+static struct resource autcpu12_nand_resource[] __initdata = {
+ DEFINE_RES_MEM(AUTCPU12_SMC_BASE, SZ_16),
+};
+
+static struct mtd_partition autcpu12_nand_parts[] __initdata = {
+ {
+ .name = "Flash partition 1",
+ .offset = 0,
+ .size = SZ_8M,
+ },
+ {
+ .name = "Flash partition 2",
+ .offset = MTDPART_OFS_APPEND,
+ .size = MTDPART_SIZ_FULL,
+ },
+};
+
+static void __init autcpu12_adjust_parts(struct gpio_nand_platdata *pdata,
+ size_t sz)
+{
+ switch (sz) {
+ case SZ_16M:
+ case SZ_32M:
+ break;
+ case SZ_64M:
+ case SZ_128M:
+ pdata->parts[0].size = SZ_16M;
+ break;
+ default:
+ pr_warn("Unsupported SmartMedia device size %u\n", sz);
+ break;
+ }
+}
+
+static struct gpio_nand_platdata autcpu12_nand_pdata __initdata = {
+ .gpio_rdy = AUTCPU12_SMC_RDY,
+ .gpio_nce = AUTCPU12_SMC_NCE,
+ .gpio_ale = AUTCPU12_SMC_ALE,
+ .gpio_cle = AUTCPU12_SMC_CLE,
+ .gpio_nwp = -1,
+ .chip_delay = 20,
+ .parts = autcpu12_nand_parts,
+ .num_parts = ARRAY_SIZE(autcpu12_nand_parts),
+ .adjust_parts = autcpu12_adjust_parts,
+};
+
+static struct platform_device autcpu12_nand_pdev __initdata = {
+ .name = "gpio-nand",
+ .id = -1,
+ .resource = autcpu12_nand_resource,
+ .num_resources = ARRAY_SIZE(autcpu12_nand_resource),
+ .dev = {
+ .platform_data = &autcpu12_nand_pdata,
+ },
+};
+
+static struct resource autcpu12_mmgpio_resource[] __initdata = {
+ DEFINE_RES_MEM_NAMED(AUTCPU12_SMC_SEL_BASE, SZ_1, "dat"),
+};
+
+static struct bgpio_pdata autcpu12_mmgpio_pdata __initdata = {
+ .base = AUTCPU12_MMGPIO_BASE,
+ .ngpio = 8,
+};
+
+static struct platform_device autcpu12_mmgpio_pdev __initdata = {
+ .name = "basic-mmio-gpio",
+ .id = -1,
+ .resource = autcpu12_mmgpio_resource,
+ .num_resources = ARRAY_SIZE(autcpu12_mmgpio_resource),
+ .dev = {
+ .platform_data = &autcpu12_mmgpio_pdata,
+ },
+};
+
static void __init autcpu12_init(void)
{
platform_device_register_simple("video-clps711x", 0, NULL, 0);
platform_device_register_simple("cs89x0", 0, autcpu12_cs8900_resource,
ARRAY_SIZE(autcpu12_cs8900_resource));
+ platform_device_register(&autcpu12_mmgpio_pdev);
platform_device_register(&autcpu12_nvram_pdev);
}
+static void __init autcpu12_init_late(void)
+{
+ if (IS_ENABLED(MTD_NAND_GPIO) && IS_ENABLED(GPIO_GENERIC_PLATFORM)) {
+ /* We are need both drivers to handle NAND */
+ platform_device_register(&autcpu12_nand_pdev);
+ }
+}
+
MACHINE_START(AUTCPU12, "autronix autcpu12")
/* Maintainer: Thomas Gleixner */
.atag_offset = 0x20000,
@@ -75,6 +172,7 @@ MACHINE_START(AUTCPU12, "autronix autcpu12")
.init_irq = clps711x_init_irq,
.timer = &clps711x_timer,
.init_machine = autcpu12_init,
+ .init_late = autcpu12_init_late,
.handle_irq = clps711x_handle_irq,
.restart = clps711x_restart,
MACHINE_END
diff --git a/arch/arm/mach-clps711x/include/mach/autcpu12.h b/arch/arm/mach-clps711x/include/mach/autcpu12.h
index b077abd8a475..0452f5f3f034 100644
--- a/arch/arm/mach-clps711x/include/mach/autcpu12.h
+++ b/arch/arm/mach-clps711x/include/mach/autcpu12.h
@@ -40,8 +40,6 @@
#define AUTCPU12_PHYS_CSAUX1 CS1_PHYS_BASE +0x04000000 /* physical */
-#define AUTCPU12_PHYS_SMC CS1_PHYS_BASE +0x06000000 /* physical */
-
#define AUTCPU12_PHYS_CAN CS1_PHYS_BASE +0x08000000 /* physical */
#define AUTCPU12_PHYS_TOUCH CS1_PHYS_BASE +0x0A000000 /* physical */
@@ -50,14 +48,6 @@
#define AUTCPU12_PHYS_LPT CS1_PHYS_BASE +0x0E000000 /* physical */
-/*
-* defines for smartmedia card access
-*/
-#define AUTCPU12_SMC_RDY (1<<2)
-#define AUTCPU12_SMC_ALE (1<<3)
-#define AUTCPU12_SMC_CLE (1<<4)
-#define AUTCPU12_SMC_PORT_OFFSET PBDR
-#define AUTCPU12_SMC_SELECT_OFFSET 0x10
/*
* defines for lcd contrast
*/