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/*
* $Id: iq80310.c,v 1.21 2005/11/07 11:14:27 gleixner Exp $
*
* Mapping for the Intel XScale IQ80310 evaluation board
*
* Author: Nicolas Pitre
* Copyright: (C) 2001 MontaVista Software Inc.
*
* 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/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <asm/io.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
#define WINDOW_ADDR 0
#define WINDOW_SIZE 8*1024*1024
#define BUSWIDTH 1
static struct mtd_info *mymtd;
static struct map_info iq80310_map = {
.name = "IQ80310 flash",
.size = WINDOW_SIZE,
.bankwidth = BUSWIDTH,
.phys = WINDOW_ADDR
};
static struct mtd_partition iq80310_partitions[4] = {
{
.name = "Firmware",
.size = 0x00080000,
.offset = 0,
.mask_flags = MTD_WRITEABLE /* force read-only */
},{
.name = "Kernel",
.size = 0x000a0000,
.offset = 0x00080000,
},{
.name = "Filesystem",
.size = 0x00600000,
.offset = 0x00120000
},{
.name = "RedBoot",
.size = 0x000e0000,
.offset = 0x00720000,
.mask_flags = MTD_WRITEABLE
}
};
static struct mtd_info *mymtd;
static struct mtd_partition *parsed_parts;
static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
static int __init init_iq80310(void)
{
struct mtd_partition *parts;
int nb_parts = 0;
int parsed_nr_parts = 0;
int ret;
iq80310_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
if (!iq80310_map.virt) {
printk("Failed to ioremap\n");
return -EIO;
}
simple_map_init(&iq80310_map);
mymtd = do_map_probe("cfi_probe", &iq80310_map);
if (!mymtd) {
iounmap((void *)iq80310_map.virt);
return -ENXIO;
}
mymtd->owner = THIS_MODULE;
ret = parse_mtd_partitions(mymtd, probes, &parsed_parts, 0);
if (ret > 0)
parsed_nr_parts = ret;
if (parsed_nr_parts > 0) {
parts = parsed_parts;
nb_parts = parsed_nr_parts;
} else {
parts = iq80310_partitions;
nb_parts = ARRAY_SIZE(iq80310_partitions);
}
add_mtd_partitions(mymtd, parts, nb_parts);
return 0;
}
static void __exit cleanup_iq80310(void)
{
if (mymtd) {
del_mtd_partitions(mymtd);
map_destroy(mymtd);
kfree(parsed_parts);
}
if (iq80310_map.virt)
iounmap((void *)iq80310_map.virt);
}
module_init(init_iq80310);
module_exit(cleanup_iq80310);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Nicolas Pitre <nico@cam.org>");
MODULE_DESCRIPTION("MTD map driver for Intel XScale IQ80310 evaluation board");
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