This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / arch / avr32 / boards / atstk1000 / flash.c

diff --git a/arch/avr32/boards/atstk1000/flash.c b/arch/avr32/boards/atstk1000/flash.c
new file mode 100644 (file)
index 0000000..aac4300
--- /dev/null
+++ b/arch/avr32/boards/atstk1000/flash.c
@@ -0,0 +1,95 @@
+/*
+ * ATSTK1000 board-specific flash initialization
+ *
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * 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 <asm/arch/smc.h>
+
+static struct smc_config flash_config __initdata = {
+       .ncs_read_setup         = 0,
+       .nrd_setup              = 40,
+       .ncs_write_setup        = 0,
+       .nwe_setup              = 10,
+
+       .ncs_read_pulse         = 80,
+       .nrd_pulse              = 40,
+       .ncs_write_pulse        = 65,
+       .nwe_pulse              = 55,
+
+       .read_cycle             = 120,
+       .write_cycle            = 120,
+
+       .bus_width              = 2,
+       .nrd_controlled         = 1,
+       .nwe_controlled         = 1,
+       .byte_write             = 1,
+};
+
+static struct mtd_partition flash_parts[] = {
+       {
+               .name           = "u-boot",
+               .offset         = 0x00000000,
+               .size           = 0x00020000,           /* 128 KiB */
+               .mask_flags     = MTD_WRITEABLE,
+       },
+       {
+               .name           = "root",
+               .offset         = 0x00020000,
+               .size           = 0x007d0000,
+       },
+       {
+               .name           = "env",
+               .offset         = 0x007f0000,
+               .size           = 0x00010000,
+               .mask_flags     = MTD_WRITEABLE,
+       },
+};
+
+static struct physmap_flash_data flash_data = {
+       .width          = 2,
+       .nr_parts       = ARRAY_SIZE(flash_parts),
+       .parts          = flash_parts,
+};
+
+static struct resource flash_resource = {
+       .start          = 0x00000000,
+       .end            = 0x007fffff,
+       .flags          = IORESOURCE_MEM,
+};
+
+static struct platform_device flash_device = {
+       .name           = "physmap-flash",
+       .id             = 0,
+       .resource       = &flash_resource,
+       .num_resources  = 1,
+       .dev            = {
+               .platform_data = &flash_data,
+       },
+};
+
+/* This needs to be called after the SMC has been initialized */
+static int __init atstk1000_flash_init(void)
+{
+       int ret;
+
+       ret = smc_set_configuration(0, &flash_config);
+       if (ret < 0) {
+               printk(KERN_ERR "atstk1000: failed to set NOR flash timing\n");
+               return ret;
+       }
+
+       platform_device_register(&flash_device);
+
+       return 0;
+}
+device_initcall(atstk1000_flash_init);