diff options
Diffstat (limited to 'drivers/mtd/maps/mainstone-flash.c')
| -rw-r--r-- | drivers/mtd/maps/mainstone-flash.c | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/drivers/mtd/maps/mainstone-flash.c b/drivers/mtd/maps/mainstone-flash.c deleted file mode 100644 index eaa4bbb868a..00000000000 --- a/drivers/mtd/maps/mainstone-flash.c +++ /dev/null @@ -1,181 +0,0 @@ -/* - * $Id: $ - * - * Map driver for the Mainstone developer platform. - * - * Author: Nicolas Pitre - * Copyright: (C) 2001 MontaVista Software Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/dma-mapping.h> -#include <linux/slab.h> - -#include <linux/mtd/mtd.h> -#include <linux/mtd/map.h> -#include <linux/mtd/partitions.h> - -#include <asm/io.h> -#include <asm/hardware.h> -#include <asm/arch/pxa-regs.h> -#include <asm/arch/mainstone.h> - - -#define ROM_ADDR 0x00000000 -#define FLASH_ADDR 0x04000000 - -#define WINDOW_SIZE 0x04000000 - -static void mainstone_map_inval_cache(struct map_info *map, unsigned long from, - ssize_t len) -{ - consistent_sync((char *)map->cached + from, len, DMA_FROM_DEVICE); -} - -static struct map_info mainstone_maps[2] = { { - .size = WINDOW_SIZE, - .phys = PXA_CS0_PHYS, - .inval_cache = mainstone_map_inval_cache, -}, { - .size = WINDOW_SIZE, - .phys = PXA_CS1_PHYS, - .inval_cache = mainstone_map_inval_cache, -} }; - -static struct mtd_partition mainstone_partitions[] = { - { - .name = "Bootloader", - .size = 0x00040000, - .offset = 0, - .mask_flags = MTD_WRITEABLE /* force read-only */ - },{ - .name = "Kernel", - .size = 0x00400000, - .offset = 0x00040000, - },{ - .name = "Filesystem", - .size = MTDPART_SIZ_FULL, - .offset = 0x00440000 - } -}; - -static struct mtd_info *mymtds[2]; -static struct mtd_partition *parsed_parts[2]; -static int nr_parsed_parts[2]; - -static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; - -static int __init init_mainstone(void) -{ - int SW7 = 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */ - int ret = 0, i; - - mainstone_maps[0].bankwidth = (BOOT_DEF & 1) ? 2 : 4; - mainstone_maps[1].bankwidth = 4; - - /* Compensate for SW7 which swaps the flash banks */ - mainstone_maps[SW7].name = "processor flash"; - mainstone_maps[SW7 ^ 1].name = "main board flash"; - - printk(KERN_NOTICE "Mainstone configured to boot from %s\n", - mainstone_maps[0].name); - - for (i = 0; i < 2; i++) { - mainstone_maps[i].virt = ioremap(mainstone_maps[i].phys, - WINDOW_SIZE); - if (!mainstone_maps[i].virt) { - printk(KERN_WARNING "Failed to ioremap %s\n", - mainstone_maps[i].name); - if (!ret) - ret = -ENOMEM; - continue; - } - mainstone_maps[i].cached = - ioremap_cached(mainstone_maps[i].phys, WINDOW_SIZE); - if (!mainstone_maps[i].cached) - printk(KERN_WARNING "Failed to ioremap cached %s\n", - mainstone_maps[i].name); - simple_map_init(&mainstone_maps[i]); - - printk(KERN_NOTICE - "Probing %s at physical address 0x%08lx" - " (%d-bit bankwidth)\n", - mainstone_maps[i].name, mainstone_maps[i].phys, - mainstone_maps[i].bankwidth * 8); - - mymtds[i] = do_map_probe("cfi_probe", &mainstone_maps[i]); - - if (!mymtds[i]) { - iounmap((void *)mainstone_maps[i].virt); - if (mainstone_maps[i].cached) - iounmap(mainstone_maps[i].cached); - if (!ret) - ret = -EIO; - continue; - } - mymtds[i]->owner = THIS_MODULE; - - ret = parse_mtd_partitions(mymtds[i], probes, - &parsed_parts[i], 0); - - if (ret > 0) - nr_parsed_parts[i] = ret; - } - - if (!mymtds[0] && !mymtds[1]) - return ret; - - for (i = 0; i < 2; i++) { - if (!mymtds[i]) { - printk(KERN_WARNING "%s is absent. Skipping\n", - mainstone_maps[i].name); - } else if (nr_parsed_parts[i]) { - add_mtd_partitions(mymtds[i], parsed_parts[i], - nr_parsed_parts[i]); - } else if (!i) { - printk("Using static partitions on %s\n", - mainstone_maps[i].name); - add_mtd_partitions(mymtds[i], mainstone_partitions, - ARRAY_SIZE(mainstone_partitions)); - } else { - printk("Registering %s as whole device\n", - mainstone_maps[i].name); - add_mtd_device(mymtds[i]); - } - } - return 0; -} - -static void __exit cleanup_mainstone(void) -{ - int i; - for (i = 0; i < 2; i++) { - if (!mymtds[i]) - continue; - - if (nr_parsed_parts[i] || !i) - del_mtd_partitions(mymtds[i]); - else - del_mtd_device(mymtds[i]); - - map_destroy(mymtds[i]); - iounmap((void *)mainstone_maps[i].virt); - if (mainstone_maps[i].cached) - iounmap(mainstone_maps[i].cached); - kfree(parsed_parts[i]); - } -} - -module_init(init_mainstone); -module_exit(cleanup_mainstone); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Nicolas Pitre <nico@cam.org>"); -MODULE_DESCRIPTION("MTD map driver for Intel Mainstone"); |