forked from Minki/linux
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
94 lines
1.7 KiB
C
94 lines
1.7 KiB
C
/*
|
|
* pnc2000.c - mapper for Photron PNC-2000 board.
|
|
*
|
|
* Copyright (C) 2000 Crossnet Co. <info@crossnet.co.jp>
|
|
*
|
|
* This code is GPL
|
|
*
|
|
* $Id: pnc2000.c,v 1.17 2004/11/16 18:29:02 dwmw2 Exp $
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/types.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
|
|
#include <linux/mtd/mtd.h>
|
|
#include <linux/mtd/map.h>
|
|
#include <linux/mtd/partitions.h>
|
|
|
|
|
|
#define WINDOW_ADDR 0xbf000000
|
|
#define WINDOW_SIZE 0x00400000
|
|
|
|
/*
|
|
* MAP DRIVER STUFF
|
|
*/
|
|
|
|
|
|
static struct map_info pnc_map = {
|
|
.name = "PNC-2000",
|
|
.size = WINDOW_SIZE,
|
|
.bankwidth = 4,
|
|
.phys = 0xFFFFFFFF,
|
|
.virt = (void __iomem *)WINDOW_ADDR,
|
|
};
|
|
|
|
|
|
/*
|
|
* MTD 'PARTITIONING' STUFF
|
|
*/
|
|
static struct mtd_partition pnc_partitions[3] = {
|
|
{
|
|
.name = "PNC-2000 boot firmware",
|
|
.size = 0x20000,
|
|
.offset = 0
|
|
},
|
|
{
|
|
.name = "PNC-2000 kernel",
|
|
.size = 0x1a0000,
|
|
.offset = 0x20000
|
|
},
|
|
{
|
|
.name = "PNC-2000 filesystem",
|
|
.size = 0x240000,
|
|
.offset = 0x1c0000
|
|
}
|
|
};
|
|
|
|
/*
|
|
* This is the master MTD device for which all the others are just
|
|
* auto-relocating aliases.
|
|
*/
|
|
static struct mtd_info *mymtd;
|
|
|
|
static int __init init_pnc2000(void)
|
|
{
|
|
printk(KERN_NOTICE "Photron PNC-2000 flash mapping: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR);
|
|
|
|
simple_map_init(&pnc_map);
|
|
|
|
mymtd = do_map_probe("cfi_probe", &pnc_map);
|
|
if (mymtd) {
|
|
mymtd->owner = THIS_MODULE;
|
|
return add_mtd_partitions(mymtd, pnc_partitions, 3);
|
|
}
|
|
|
|
return -ENXIO;
|
|
}
|
|
|
|
static void __exit cleanup_pnc2000(void)
|
|
{
|
|
if (mymtd) {
|
|
del_mtd_partitions(mymtd);
|
|
map_destroy(mymtd);
|
|
}
|
|
}
|
|
|
|
module_init(init_pnc2000);
|
|
module_exit(cleanup_pnc2000);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Crossnet Co. <info@crossnet.co.jp>");
|
|
MODULE_DESCRIPTION("MTD map driver for Photron PNC-2000 board");
|