ARM: clps711x: cdb89712: Special driver for handling memory is removed

This patch provide migration to using "physmap-flash" and "mtd-ram"
drivers instead of using special driver for handling memory.

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

2 files changed, 87 insertions, 0 deletions

diff --git a/arch/arm/mach-clps711x/cdb89712.c b/arch/arm/mach-clps711x/cdb89712.c
index 235e6256775..24f573b5715 100644
--- a/arch/arm/mach-clps711x/cdb89712.c
+++ b/arch/arm/mach-clps711x/cdb89712.c
@@ -26,6 +26,10 @@
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/plat-ram.h>
+#include <linux/mtd/partitions.h>
+
 #include <mach/hardware.h>
 #include <asm/pgtable.h>
 #include <asm/page.h>
@@ -44,8 +48,88 @@ static struct resource cdb89712_cs8900_resource[] __initdata = {
 	DEFINE_RES_IRQ(CDB89712_CS8900_IRQ),
 };
 
+static struct mtd_partition cdb89712_flash_partitions[] __initdata = {
+	{
+		.name	= "Flash",
+		.offset	= 0,
+		.size	= MTDPART_SIZ_FULL,
+	},
+};
+
+static struct physmap_flash_data cdb89712_flash_pdata __initdata = {
+	.width		= 4,
+	.probe_type	= "map_rom",
+	.parts		= cdb89712_flash_partitions,
+	.nr_parts	= ARRAY_SIZE(cdb89712_flash_partitions),
+};
+
+static struct resource cdb89712_flash_resources[] __initdata = {
+	DEFINE_RES_MEM(CS0_PHYS_BASE, SZ_8M),
+};
+
+static struct platform_device cdb89712_flash_pdev __initdata = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.resource	= cdb89712_flash_resources,
+	.num_resources	= ARRAY_SIZE(cdb89712_flash_resources),
+	.dev	= {
+		.platform_data	= &cdb89712_flash_pdata,
+	},
+};
+
+static struct mtd_partition cdb89712_bootrom_partitions[] __initdata = {
+	{
+		.name	= "BootROM",
+		.offset	= 0,
+		.size	= MTDPART_SIZ_FULL,
+	},
+};
+
+static struct physmap_flash_data cdb89712_bootrom_pdata __initdata = {
+	.width		= 4,
+	.probe_type	= "map_rom",
+	.parts		= cdb89712_bootrom_partitions,
+	.nr_parts	= ARRAY_SIZE(cdb89712_bootrom_partitions),
+};
+
+static struct resource cdb89712_bootrom_resources[] __initdata = {
+	DEFINE_RES_NAMED(CS7_PHYS_BASE, SZ_128, "BOOTROM", IORESOURCE_MEM |
+			 IORESOURCE_CACHEABLE | IORESOURCE_READONLY),
+};
+
+static struct platform_device cdb89712_bootrom_pdev __initdata = {
+	.name		= "physmap-flash",
+	.id		= 1,
+	.resource	= cdb89712_bootrom_resources,
+	.num_resources	= ARRAY_SIZE(cdb89712_bootrom_resources),
+	.dev	= {
+		.platform_data	= &cdb89712_bootrom_pdata,
+	},
+};
+
+static struct platdata_mtd_ram cdb89712_sram_pdata __initdata = {
+	.bankwidth	= 4,
+};
+
+static struct resource cdb89712_sram_resources[] __initdata = {
+	DEFINE_RES_MEM(CLPS711X_SRAM_BASE, CLPS711X_SRAM_SIZE),
+};
+
+static struct platform_device cdb89712_sram_pdev __initdata = {
+	.name		= "mtd-ram",
+	.id		= 0,
+	.resource	= cdb89712_sram_resources,
+	.num_resources	= ARRAY_SIZE(cdb89712_sram_resources),
+	.dev	= {
+		.platform_data	= &cdb89712_sram_pdata,
+	},
+};
+
 static void __init cdb89712_init(void)
 {
+	platform_device_register(&cdb89712_flash_pdev);
+	platform_device_register(&cdb89712_bootrom_pdev);
+	platform_device_register(&cdb89712_sram_pdev);
 	platform_device_register_simple("cs89x0", 0, cdb89712_cs8900_resource,
 					ARRAY_SIZE(cdb89712_cs8900_resource));
 }
diff --git a/arch/arm/mach-clps711x/include/mach/hardware.h b/arch/arm/mach-clps711x/include/mach/hardware.h
index bd919e7bb86..5a278cb02b0 100644
--- a/arch/arm/mach-clps711x/include/mach/hardware.h
+++ b/arch/arm/mach-clps711x/include/mach/hardware.h
@@ -64,6 +64,9 @@
 #define CS7_PHYS_BASE		(0x00000000)
 #endif
 
+#define CLPS711X_SRAM_BASE	CS6_PHYS_BASE
+#define CLPS711X_SRAM_SIZE	(48 * 1024)
+
 #if defined (CONFIG_ARCH_EDB7211)
 
 /* The extra 8 lines of the keyboard matrix are wired to chip select 3 */