/* * $Id: dbox2-flash.c,v 1.12 2004/09/16 23:27:12 gleixner Exp $ * * D-Box 2 flash driver */#include <linux/module.h>#include <linux/types.h>#include <linux/kernel.h>#include <linux/init.h>#include <asm/io.h>#include <linux/mtd/mtd.h>#include <linux/mtd/map.h>#include <linux/mtd/partitions.h>#include <linux/config.h>#include <linux/errno.h>/* partition_info gives details on the logical partitions that the split the * single flash device into. If the size if zero we use up to the end of the * device. */static struct mtd_partition partition_info[]= {	{	.name		= "BR bootloader",	.size		= 128 * 1024, 	.offset		= 0,                  	.mask_flags	= MTD_WRITEABLE	},	{	.name		= "FLFS (U-Boot)",	.size		= 128 * 1024, 	.offset		= MTDPART_OFS_APPEND, 	.mask_flags	= 0	},	{	.name		= "Root (SquashFS)",		.size		= 7040 * 1024, 	.offset		= MTDPART_OFS_APPEND, 	.mask_flags	= 0	},	{	.name		= "var (JFFS2)",	.size		= 896 * 1024, 	.offset		= MTDPART_OFS_APPEND, 	.mask_flags	= 0	},	{	.name		= "Flash without bootloader",		.size		= MTDPART_SIZ_FULL, 	.offset		= 128 * 1024, 	.mask_flags	= 0	},	{	.name		= "Complete Flash",		.size		= MTDPART_SIZ_FULL, 	.offset		= 0, 	.mask_flags	= MTD_WRITEABLE	}};#define NUM_PARTITIONS (sizeof(partition_info) / sizeof(partition_info[0]))#define WINDOW_ADDR 0x10000000#define WINDOW_SIZE 0x800000static struct mtd_info *mymtd;struct map_info dbox2_flash_map = {	.name		= "D-Box 2 flash memory",	.size		= WINDOW_SIZE,	.bankwidth	= 4,	.phys		= WINDOW_ADDR,};int __init init_dbox2_flash(void){       	printk(KERN_NOTICE "D-Box 2 flash driver (size->0x%X mem->0x%X)\n", WINDOW_SIZE, WINDOW_ADDR);	dbox2_flash_map.virt = (void __iomem *)ioremap(WINDOW_ADDR, WINDOW_SIZE);	if (!dbox2_flash_map.virt) {		printk("Failed to ioremap\n");		return -EIO;	}	simple_map_init(&dbox2_flash_map);	// Probe for dual Intel 28F320 or dual AMD	mymtd = do_map_probe("cfi_probe", &dbox2_flash_map);	if (!mymtd) {	    // Probe for single Intel 28F640	    dbox2_flash_map.bankwidth = 2;		    mymtd = do_map_probe("cfi_probe", &dbox2_flash_map);	}	    	if (mymtd) {		mymtd->owner = THIS_MODULE;                /* Create MTD devices for each partition. */	        add_mtd_partitions(mymtd, partition_info, NUM_PARTITIONS);				return 0;	}	iounmap((void *)dbox2_flash_map.virt);	return -ENXIO;}static void __exit cleanup_dbox2_flash(void){	if (mymtd) {		del_mtd_partitions(mymtd);		map_destroy(mymtd);	}	if (dbox2_flash_map.virt) {		iounmap((void *)dbox2_flash_map.virt);		dbox2_flash_map.virt = 0;	}}module_init(init_dbox2_flash);module_exit(cleanup_dbox2_flash);MODULE_LICENSE("GPL");MODULE_AUTHOR("K醨i Dav眇sson <kd@flaga.is>, Bastian Blank <waldi@tuxbox.org>, Alexander Wild <wild@te-elektronik.com>");MODULE_DESCRIPTION("MTD map driver for D-Box 2 board");