Remove the Simtec BAST flash driver as this has been replaced by using the platform flash driver. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>tirimbino
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/* linux/drivers/mtd/maps/bast-flash.c
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* |
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* Copyright (c) 2004-2005 Simtec Electronics |
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* Ben Dooks <ben@simtec.co.uk> |
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* |
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* Simtec Bast (EB2410ITX) NOR MTD Mapping driver |
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* |
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* Changelog: |
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* 20-Sep-2004 BJD Initial version |
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* 17-Jan-2005 BJD Add whole device if no partitions found |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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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/init.h> |
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#include <linux/kernel.h> |
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#include <linux/string.h> |
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#include <linux/ioport.h> |
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#include <linux/device.h> |
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#include <linux/slab.h> |
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#include <linux/platform_device.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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#include <asm/io.h> |
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#include <asm/mach/flash.h> |
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#include <asm/arch/map.h> |
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#include <asm/arch/bast-map.h> |
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#include <asm/arch/bast-cpld.h> |
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#ifdef CONFIG_MTD_BAST_MAXSIZE |
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#define AREA_MAXSIZE (CONFIG_MTD_BAST_MAXSIZE * SZ_1M) |
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#else |
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#define AREA_MAXSIZE (32 * SZ_1M) |
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#endif |
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#define PFX "bast-flash: " |
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struct bast_flash_info { |
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struct mtd_info *mtd; |
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struct map_info map; |
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struct mtd_partition *partitions; |
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struct resource *area; |
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}; |
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static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; |
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static void bast_flash_setrw(int to) |
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{ |
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unsigned int val; |
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unsigned long flags; |
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local_irq_save(flags); |
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val = __raw_readb(BAST_VA_CTRL3); |
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if (to) |
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val |= BAST_CPLD_CTRL3_ROMWEN; |
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else |
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val &= ~BAST_CPLD_CTRL3_ROMWEN; |
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pr_debug("new cpld ctrl3=%02x\n", val); |
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__raw_writeb(val, BAST_VA_CTRL3); |
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local_irq_restore(flags); |
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} |
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static int bast_flash_remove(struct platform_device *pdev) |
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{ |
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struct bast_flash_info *info = platform_get_drvdata(pdev); |
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platform_set_drvdata(pdev, NULL); |
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if (info == NULL) |
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return 0; |
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if (info->map.virt != NULL) |
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iounmap(info->map.virt); |
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if (info->mtd) { |
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del_mtd_partitions(info->mtd); |
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map_destroy(info->mtd); |
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} |
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kfree(info->partitions); |
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if (info->area) { |
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release_resource(info->area); |
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kfree(info->area); |
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} |
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kfree(info); |
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return 0; |
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} |
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static int bast_flash_probe(struct platform_device *pdev) |
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{ |
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struct bast_flash_info *info; |
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struct resource *res; |
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int err = 0; |
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info = kmalloc(sizeof(*info), GFP_KERNEL); |
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if (info == NULL) { |
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printk(KERN_ERR PFX "no memory for flash info\n"); |
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err = -ENOMEM; |
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goto exit_error; |
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} |
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memzero(info, sizeof(*info)); |
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platform_set_drvdata(pdev, info); |
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res = pdev->resource; /* assume that the flash has one resource */ |
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info->map.phys = res->start; |
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info->map.size = res->end - res->start + 1; |
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info->map.name = pdev->dev.bus_id; |
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info->map.bankwidth = 2; |
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if (info->map.size > AREA_MAXSIZE) |
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info->map.size = AREA_MAXSIZE; |
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pr_debug("%s: area %08lx, size %ld\n", __func__, |
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info->map.phys, info->map.size); |
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info->area = request_mem_region(res->start, info->map.size, |
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pdev->name); |
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if (info->area == NULL) { |
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printk(KERN_ERR PFX "cannot reserve flash memory region\n"); |
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err = -ENOENT; |
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goto exit_error; |
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} |
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info->map.virt = ioremap(res->start, info->map.size); |
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pr_debug("%s: virt at %08x\n", __func__, (int)info->map.virt); |
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if (info->map.virt == 0) { |
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printk(KERN_ERR PFX "failed to ioremap() region\n"); |
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err = -EIO; |
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goto exit_error; |
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} |
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simple_map_init(&info->map); |
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/* enable the write to the flash area */ |
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bast_flash_setrw(1); |
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/* probe for the device(s) */ |
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info->mtd = do_map_probe("jedec_probe", &info->map); |
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if (info->mtd == NULL) |
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info->mtd = do_map_probe("cfi_probe", &info->map); |
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if (info->mtd == NULL) { |
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printk(KERN_ERR PFX "map_probe() failed\n"); |
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err = -ENXIO; |
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goto exit_error; |
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} |
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/* mark ourselves as the owner */ |
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info->mtd->owner = THIS_MODULE; |
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err = parse_mtd_partitions(info->mtd, probes, &info->partitions, 0); |
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if (err > 0) { |
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err = add_mtd_partitions(info->mtd, info->partitions, err); |
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if (err) |
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printk(KERN_ERR PFX "cannot add/parse partitions\n"); |
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} else { |
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err = add_mtd_device(info->mtd); |
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} |
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if (err == 0) |
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return 0; |
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/* fall through to exit error */ |
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exit_error: |
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bast_flash_remove(pdev); |
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return err; |
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} |
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static struct platform_driver bast_flash_driver = { |
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.probe = bast_flash_probe, |
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.remove = bast_flash_remove, |
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.driver = { |
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.name = "bast-nor", |
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.owner = THIS_MODULE, |
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}, |
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}; |
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static int __init bast_flash_init(void) |
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{ |
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printk("BAST NOR-Flash Driver, (c) 2004 Simtec Electronics\n"); |
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return platform_driver_register(&bast_flash_driver); |
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} |
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static void __exit bast_flash_exit(void) |
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{ |
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platform_driver_unregister(&bast_flash_driver); |
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} |
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module_init(bast_flash_init); |
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module_exit(bast_flash_exit); |
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MODULE_LICENSE("GPL"); |
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MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>"); |
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MODULE_DESCRIPTION("BAST MTD Map driver"); |
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MODULE_ALIAS("platform:bast-nor"); |
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