1 files changed, 143 insertions, 0 deletions
diff --git a/kernel/arch/avr32/boards/mimc200/flash.c b/kernel/arch/avr32/boards/mimc200/flash.c
new file mode 100644
index 000000000..d83d650fc
--- /dev/null
+++ b/kernel/arch/avr32/boards/mimc200/flash.c
@@ -0,0 +1,143 @@
+/*
+ * MIMC200 board-specific flash initialization
+ *
+ * Copyright (C) 2008 Mercury IMC Ltd
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+
+#include <mach/smc.h>
+
+static struct smc_timing flash_timing __initdata = {
+	.ncs_read_setup		= 0,
+	.nrd_setup		= 15,
+	.ncs_write_setup	= 0,
+	.nwe_setup		= 0,
+
+	.ncs_read_pulse		= 115,
+	.nrd_pulse		= 110,
+	.ncs_write_pulse	= 60,
+	.nwe_pulse		= 60,
+
+	.read_cycle		= 115,
+	.write_cycle		= 100,
+};
+
+static struct smc_config flash_config __initdata = {
+	.bus_width		= 2,
+	.nrd_controlled		= 1,
+	.nwe_controlled		= 1,
+	.byte_write		= 1,
+};
+
+/* system flash definition */
+
+static struct mtd_partition flash_parts_system[] = {
+	{
+		.name           = "u-boot",
+		.offset         = 0x00000000,
+		.size           = 0x00020000,           /* 128 KiB */
+		.mask_flags     = MTD_WRITEABLE,
+	},
+	{
+		.name           = "root",
+		.offset         = 0x00020000,
+		.size           = 0x007c0000,
+	},
+	{
+		.name		= "splash",
+		.offset		= 0x007e0000,
+		.size		= 0x00010000,		/* 64KiB */
+	},
+	{
+		.name           = "env",
+		.offset         = 0x007f0000,
+		.size           = 0x00010000,
+		.mask_flags     = MTD_WRITEABLE,
+	},
+};
+
+static struct physmap_flash_data flash_system = {
+	.width		= 2,
+	.nr_parts	= ARRAY_SIZE(flash_parts_system),
+	.parts		= flash_parts_system,
+};
+
+static struct resource flash_resource_system = {
+	.start		= 0x00000000,
+	.end		= 0x007fffff,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device flash_device_system = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.resource	= &flash_resource_system,
+	.num_resources	= 1,
+	.dev		= {
+		.platform_data = &flash_system,
+	},
+};
+
+/* data flash definition */
+
+static struct mtd_partition flash_parts_data[] = {
+	{
+		.name		= "data",
+		.offset		= 0x00000000,
+		.size		= 0x00800000,
+	},
+};
+
+static struct physmap_flash_data flash_data = {
+	.width		= 2,
+	.nr_parts	= ARRAY_SIZE(flash_parts_data),
+	.parts		= flash_parts_data,
+};
+
+static struct resource flash_resource_data = {
+	.start		= 0x08000000,
+	.end		= 0x087fffff,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device flash_device_data = {
+	.name		= "physmap-flash",
+	.id		= 1,
+	.resource	= &flash_resource_data,
+	.num_resources	= 1,
+	.dev		= {
+		.platform_data = &flash_data,
+	},
+};
+
+/* This needs to be called after the SMC has been initialized */
+static int __init mimc200_flash_init(void)
+{
+	int ret;
+
+	smc_set_timing(&flash_config, &flash_timing);
+	ret = smc_set_configuration(0, &flash_config);
+	if (ret < 0) {
+		printk(KERN_ERR "mimc200: failed to set 'System' NOR flash timing\n");
+		return ret;
+	}
+	ret = smc_set_configuration(1, &flash_config);
+	if (ret < 0) {
+		printk(KERN_ERR "mimc200: failed to set 'Data' NOR flash timing\n");
+		return ret;
+	}
+
+	platform_device_register(&flash_device_system);
+	platform_device_register(&flash_device_data);
+
+	return 0;
+}
+device_initcall(mimc200_flash_init);