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https://github.com/torvalds/linux
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93 lines
1.7 KiB
C
93 lines
1.7 KiB
C
/*
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* pnc2000.c - mapper for Photron PNC-2000 board.
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*
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* Copyright (C) 2000 Crossnet Co. <info@crossnet.co.jp>
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*
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* This code is GPL
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*
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* $Id: pnc2000.c,v 1.18 2005/11/07 11:14:28 gleixner Exp $
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*/
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/map.h>
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#include <linux/mtd/partitions.h>
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#define WINDOW_ADDR 0xbf000000
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#define WINDOW_SIZE 0x00400000
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/*
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* MAP DRIVER STUFF
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*/
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static struct map_info pnc_map = {
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.name = "PNC-2000",
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.size = WINDOW_SIZE,
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.bankwidth = 4,
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.phys = 0xFFFFFFFF,
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.virt = (void __iomem *)WINDOW_ADDR,
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};
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/*
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* MTD 'PARTITIONING' STUFF
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*/
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static struct mtd_partition pnc_partitions[3] = {
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{
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.name = "PNC-2000 boot firmware",
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.size = 0x20000,
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.offset = 0
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},
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{
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.name = "PNC-2000 kernel",
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.size = 0x1a0000,
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.offset = 0x20000
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},
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{
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.name = "PNC-2000 filesystem",
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.size = 0x240000,
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.offset = 0x1c0000
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}
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};
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/*
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* This is the master MTD device for which all the others are just
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* auto-relocating aliases.
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*/
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static struct mtd_info *mymtd;
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static int __init init_pnc2000(void)
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{
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printk(KERN_NOTICE "Photron PNC-2000 flash mapping: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR);
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simple_map_init(&pnc_map);
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mymtd = do_map_probe("cfi_probe", &pnc_map);
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if (mymtd) {
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mymtd->owner = THIS_MODULE;
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return add_mtd_partitions(mymtd, pnc_partitions, 3);
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}
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return -ENXIO;
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}
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static void __exit cleanup_pnc2000(void)
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{
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if (mymtd) {
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del_mtd_partitions(mymtd);
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map_destroy(mymtd);
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}
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}
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module_init(init_pnc2000);
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module_exit(cleanup_pnc2000);
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("Crossnet Co. <info@crossnet.co.jp>");
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MODULE_DESCRIPTION("MTD map driver for Photron PNC-2000 board");
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