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yaml
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r: 35652
b: refs/heads/master
c: 2514183
h: refs/heads/master
v: v3
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Haavard Skinnemoen authored and Linus Torvalds committed Sep 26, 2006
1 parent 7999729 commit e3aad6a
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Showing 3 changed files with 97 additions and 2 deletions.
2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: bc157b75960f1f33566074e820342690216629b9
refs/heads/master: 2514183dff2d5282cb745af34f56d1b98e5b2df8
2 changes: 1 addition & 1 deletion trunk/arch/avr32/boards/atstk1000/Makefile
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obj-y += setup.o spi.o
obj-y += setup.o spi.o flash.o
obj-$(CONFIG_BOARD_ATSTK1002) += atstk1002.o
95 changes: 95 additions & 0 deletions trunk/arch/avr32/boards/atstk1000/flash.c
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/*
* 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);

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