2 * $Id: dbox2-flash.c,v 1.14 2005/11/07 11:14:26 gleixner Exp $
7 #include <linux/module.h>
8 #include <linux/types.h>
9 #include <linux/kernel.h>
10 #include <linux/init.h>
12 #include <linux/mtd/mtd.h>
13 #include <linux/mtd/map.h>
14 #include <linux/mtd/partitions.h>
15 #include <linux/errno.h>
17 /* partition_info gives details on the logical partitions that the split the
18 * single flash device into. If the size if zero we use up to the end of the
20 static struct mtd_partition partition_info[]= {
22 .name = "BR bootloader",
25 .mask_flags = MTD_WRITEABLE
28 .name = "FLFS (U-Boot)",
30 .offset = MTDPART_OFS_APPEND,
34 .name = "Root (SquashFS)",
36 .offset = MTDPART_OFS_APPEND,
40 .name = "var (JFFS2)",
42 .offset = MTDPART_OFS_APPEND,
46 .name = "Flash without bootloader",
47 .size = MTDPART_SIZ_FULL,
52 .name = "Complete Flash",
53 .size = MTDPART_SIZ_FULL,
55 .mask_flags = MTD_WRITEABLE
59 #define NUM_PARTITIONS ARRAY_SIZE(partition_info)
61 #define WINDOW_ADDR 0x10000000
62 #define WINDOW_SIZE 0x800000
64 static struct mtd_info *mymtd;
67 struct map_info dbox2_flash_map = {
68 .name = "D-Box 2 flash memory",
74 int __init init_dbox2_flash(void)
76 printk(KERN_NOTICE "D-Box 2 flash driver (size->0x%X mem->0x%X)\n", WINDOW_SIZE, WINDOW_ADDR);
77 dbox2_flash_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
79 if (!dbox2_flash_map.virt) {
80 printk("Failed to ioremap\n");
83 simple_map_init(&dbox2_flash_map);
85 // Probe for dual Intel 28F320 or dual AMD
86 mymtd = do_map_probe("cfi_probe", &dbox2_flash_map);
88 // Probe for single Intel 28F640
89 dbox2_flash_map.bankwidth = 2;
91 mymtd = do_map_probe("cfi_probe", &dbox2_flash_map);
95 mymtd->owner = THIS_MODULE;
97 /* Create MTD devices for each partition. */
98 add_mtd_partitions(mymtd, partition_info, NUM_PARTITIONS);
103 iounmap((void *)dbox2_flash_map.virt);
107 static void __exit cleanup_dbox2_flash(void)
110 del_mtd_partitions(mymtd);
113 if (dbox2_flash_map.virt) {
114 iounmap((void *)dbox2_flash_map.virt);
115 dbox2_flash_map.virt = 0;
119 module_init(init_dbox2_flash);
120 module_exit(cleanup_dbox2_flash);
123 MODULE_LICENSE("GPL");
124 MODULE_AUTHOR("Kári Davíðsson <kd@flaga.is>, Bastian Blank <waldi@tuxbox.org>, Alexander Wild <wild@te-elektronik.com>");
125 MODULE_DESCRIPTION("MTD map driver for D-Box 2 board");