avr32: Add MIMC200 board support
Please consider the following patch which adds support for a new AVR32
based board.
The board is closely based on Atmel's NGW100 reference board, but has an
extra 8MByte FLASH and 128KByte FRAM.
Signed-off-by: Mark Jackson <mpfj@mimc.co.uk>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
diff --git a/arch/avr32/boards/mimc200/flash.c b/arch/avr32/boards/mimc200/flash.c
new file mode 100644
index 0000000..d83d650
--- /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);