1 files changed, 143 insertions, 0 deletions

diff --git a/arch/avr32/boards/mimc200/flash.c b/arch/avr32/boards/mimc200/flash.c
new file mode 100644
index 000000000000..d83d650fc13f
--- /dev/null
+++ b/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);