mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
119 lines
2.6 KiB
C
119 lines
2.6 KiB
C
/*
|
|
* $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");
|