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path: root/drivers/mtd/maps/db1x00-flash.c
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Diffstat (limited to 'drivers/mtd/maps/db1x00-flash.c')
-rw-r--r--drivers/mtd/maps/db1x00-flash.c226
1 files changed, 0 insertions, 226 deletions
diff --git a/drivers/mtd/maps/db1x00-flash.c b/drivers/mtd/maps/db1x00-flash.c
deleted file mode 100644
index faa68ec5690..00000000000
--- a/drivers/mtd/maps/db1x00-flash.c
+++ /dev/null
@@ -1,226 +0,0 @@
-/*
- * Flash memory access on Alchemy Db1xxx boards
- *
- * $Id: db1x00-flash.c,v 1.6 2004/11/04 13:24:14 gleixner Exp $
- *
- * (C) 2003 Pete Popov <ppopov@embeddedalley.com>
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/io.h>
-
-#ifdef DEBUG_RW
-#define DBG(x...) printk(x)
-#else
-#define DBG(x...)
-#endif
-
-/* MTD CONFIG OPTIONS */
-#if defined(CONFIG_MTD_DB1X00_BOOT) && defined(CONFIG_MTD_DB1X00_USER)
-#define DB1X00_BOTH_BANKS
-#elif defined(CONFIG_MTD_DB1X00_BOOT) && !defined(CONFIG_MTD_DB1X00_USER)
-#define DB1X00_BOOT_ONLY
-#elif !defined(CONFIG_MTD_DB1X00_BOOT) && defined(CONFIG_MTD_DB1X00_USER)
-#define DB1X00_USER_ONLY
-#endif
-
-static unsigned long window_addr;
-static unsigned long window_size;
-static unsigned long flash_size;
-
-static unsigned short *bcsr = (unsigned short *)0xAE000000;
-static unsigned char flash_bankwidth = 4;
-
-/*
- * The Db1x boards support different flash densities. We setup
- * the mtd_partition structures below for default of 64Mbit
- * flash densities, and override the partitions sizes, if
- * necessary, after we check the board status register.
- */
-
-#ifdef DB1X00_BOTH_BANKS
-/* both banks will be used. Combine the first bank and the first
- * part of the second bank together into a single jffs/jffs2
- * partition.
- */
-static struct mtd_partition db1x00_partitions[] = {
- {
- .name = "User FS",
- .size = 0x1c00000,
- .offset = 0x0000000
- },{
- .name = "yamon",
- .size = 0x0100000,
- .offset = MTDPART_OFS_APPEND,
- .mask_flags = MTD_WRITEABLE
- },{
- .name = "raw kernel",
- .size = (0x300000-0x40000), /* last 256KB is env */
- .offset = MTDPART_OFS_APPEND,
- }
-};
-#elif defined(DB1X00_BOOT_ONLY)
-static struct mtd_partition db1x00_partitions[] = {
- {
- .name = "User FS",
- .size = 0x00c00000,
- .offset = 0x0000000
- },{
- .name = "yamon",
- .size = 0x0100000,
- .offset = MTDPART_OFS_APPEND,
- .mask_flags = MTD_WRITEABLE
- },{
- .name = "raw kernel",
- .size = (0x300000-0x40000), /* last 256KB is env */
- .offset = MTDPART_OFS_APPEND,
- }
-};
-#elif defined(DB1X00_USER_ONLY)
-static struct mtd_partition db1x00_partitions[] = {
- {
- .name = "User FS",
- .size = 0x0e00000,
- .offset = 0x0000000
- },{
- .name = "raw kernel",
- .size = MTDPART_SIZ_FULL,
- .offset = MTDPART_OFS_APPEND,
- }
-};
-#else
-#error MTD_DB1X00 define combo error /* should never happen */
-#endif
-#define NB_OF(x) (sizeof(x)/sizeof(x[0]))
-
-#define NAME "Db1x00 Linux Flash"
-
-static struct map_info db1xxx_mtd_map = {
- .name = NAME,
-};
-
-static struct mtd_partition *parsed_parts;
-static struct mtd_info *db1xxx_mtd;
-
-/*
- * Probe the flash density and setup window address and size
- * based on user CONFIG options. There are times when we don't
- * want the MTD driver to be probing the boot or user flash,
- * so having the option to enable only one bank is important.
- */
-int setup_flash_params(void)
-{
- switch ((bcsr[2] >> 14) & 0x3) {
- case 0: /* 64Mbit devices */
- flash_size = 0x800000; /* 8MB per part */
-#if defined(DB1X00_BOTH_BANKS)
- window_addr = 0x1E000000;
- window_size = 0x2000000;
-#elif defined(DB1X00_BOOT_ONLY)
- window_addr = 0x1F000000;
- window_size = 0x1000000;
-#else /* USER ONLY */
- window_addr = 0x1E000000;
- window_size = 0x1000000;
-#endif
- break;
- case 1:
- /* 128 Mbit devices */
- flash_size = 0x1000000; /* 16MB per part */
-#if defined(DB1X00_BOTH_BANKS)
- window_addr = 0x1C000000;
- window_size = 0x4000000;
- /* USERFS from 0x1C00 0000 to 0x1FC0 0000 */
- db1x00_partitions[0].size = 0x3C00000;
-#elif defined(DB1X00_BOOT_ONLY)
- window_addr = 0x1E000000;
- window_size = 0x2000000;
- /* USERFS from 0x1E00 0000 to 0x1FC0 0000 */
- db1x00_partitions[0].size = 0x1C00000;
-#else /* USER ONLY */
- window_addr = 0x1C000000;
- window_size = 0x2000000;
- /* USERFS from 0x1C00 0000 to 0x1DE00000 */
- db1x00_partitions[0].size = 0x1DE0000;
-#endif
- break;
- case 2:
- /* 256 Mbit devices */
- flash_size = 0x4000000; /* 64MB per part */
-#if defined(DB1X00_BOTH_BANKS)
- return 1;
-#elif defined(DB1X00_BOOT_ONLY)
- /* Boot ROM flash bank only; no user bank */
- window_addr = 0x1C000000;
- window_size = 0x4000000;
- /* USERFS from 0x1C00 0000 to 0x1FC00000 */
- db1x00_partitions[0].size = 0x3C00000;
-#else /* USER ONLY */
- return 1;
-#endif
- break;
- default:
- return 1;
- }
- db1xxx_mtd_map.size = window_size;
- db1xxx_mtd_map.bankwidth = flash_bankwidth;
- db1xxx_mtd_map.phys = window_addr;
- db1xxx_mtd_map.bankwidth = flash_bankwidth;
- return 0;
-}
-
-int __init db1x00_mtd_init(void)
-{
- struct mtd_partition *parts;
- int nb_parts = 0;
-
- if (setup_flash_params())
- return -ENXIO;
-
- /*
- * Static partition definition selection
- */
- parts = db1x00_partitions;
- nb_parts = NB_OF(db1x00_partitions);
-
- /*
- * Now let's probe for the actual flash. Do it here since
- * specific machine settings might have been set above.
- */
- printk(KERN_NOTICE "Db1xxx flash: probing %d-bit flash bus\n",
- db1xxx_mtd_map.bankwidth*8);
- db1xxx_mtd_map.virt = ioremap(window_addr, window_size);
- db1xxx_mtd = do_map_probe("cfi_probe", &db1xxx_mtd_map);
- if (!db1xxx_mtd) return -ENXIO;
- db1xxx_mtd->owner = THIS_MODULE;
-
- add_mtd_partitions(db1xxx_mtd, parts, nb_parts);
- return 0;
-}
-
-static void __exit db1x00_mtd_cleanup(void)
-{
- if (db1xxx_mtd) {
- del_mtd_partitions(db1xxx_mtd);
- map_destroy(db1xxx_mtd);
- if (parsed_parts)
- kfree(parsed_parts);
- }
-}
-
-module_init(db1x00_mtd_init);
-module_exit(db1x00_mtd_cleanup);
-
-MODULE_AUTHOR("Pete Popov");
-MODULE_DESCRIPTION("Db1x00 mtd map driver");
-MODULE_LICENSE("GPL");