diff options
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/Makefile | 3 | ||||
| -rw-r--r-- | drivers/mtd/devices/docprobe.c | 2 | ||||
| -rw-r--r-- | drivers/mtd/devices/pmc551.c | 2 | ||||
| -rw-r--r-- | drivers/mtd/maps/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/mtd/maps/Makefile | 1 | ||||
| -rw-r--r-- | drivers/mtd/maps/lasat.c | 103 | ||||
| -rw-r--r-- | drivers/mtd/maps/uclinux.c | 5 | ||||
| -rw-r--r-- | drivers/mtd/mtdsuper.c | 232 | ||||
| -rw-r--r-- | drivers/mtd/nand/autcpu12.c | 2 | ||||
| -rw-r--r-- | drivers/mtd/nand/diskonchip.c | 2 | ||||
| -rw-r--r-- | drivers/mtd/nand/ppchameleonevb.c | 6 |
11 files changed, 240 insertions, 124 deletions
diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile index 92055405cb30..451adcc52b3c 100644 --- a/drivers/mtd/Makefile +++ b/drivers/mtd/Makefile @@ -1,10 +1,9 @@ # # Makefile for the memory technology device drivers. # -# $Id: Makefile.common,v 1.7 2005/07/11 10:39:27 gleixner Exp $ # Core functionality. -mtd-y := mtdcore.o +mtd-y := mtdcore.o mtdsuper.o mtd-$(CONFIG_MTD_PARTITIONS) += mtdpart.o obj-$(CONFIG_MTD) += $(mtd-y) diff --git a/drivers/mtd/devices/docprobe.c b/drivers/mtd/devices/docprobe.c index 78872c3f3760..b96ac8e119dc 100644 --- a/drivers/mtd/devices/docprobe.c +++ b/drivers/mtd/devices/docprobe.c @@ -84,7 +84,7 @@ static unsigned long __initdata doc_locations[] = { #elif defined(CONFIG_MOMENCO_OCELOT) 0x2f000000, 0xff000000, -#elif defined(CONFIG_MOMENCO_OCELOT_G) || defined (CONFIG_MOMENCO_OCELOT_C) +#elif defined(CONFIG_MOMENCO_OCELOT_G) 0xff000000, ##else #warning Unknown architecture for DiskOnChip. No default probe locations defined diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c index a4873ab84e6b..e8f686f7a357 100644 --- a/drivers/mtd/devices/pmc551.c +++ b/drivers/mtd/devices/pmc551.c @@ -650,7 +650,7 @@ MODULE_DESCRIPTION(PMC551_VERSION); */ static int msize = 0; #if defined(CONFIG_MTD_PMC551_APERTURE_SIZE) -static int asize = CONFIG_MTD_PMC551_APERTURE_SIZE +static int asize = CONFIG_MTD_PMC551_APERTURE_SIZE; #else static int asize = 0; #endif diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index b665e4ac2208..f88ebc5b685e 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -258,12 +258,6 @@ config MTD_TSUNAMI help Support for the flash chip on Tsunami TIG bus. -config MTD_LASAT - tristate "LASAT flash device" - depends on LASAT && MTD_CFI - help - Support for the flash chips on the Lasat 100 and 200 boards. - config MTD_NETtel tristate "CFI flash device on SnapGear/SecureEdge" depends on X86 && MTD_PARTITIONS && MTD_JEDECPROBE diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile index 3acbb5d01ca4..970b189271a2 100644 --- a/drivers/mtd/maps/Makefile +++ b/drivers/mtd/maps/Makefile @@ -47,7 +47,6 @@ obj-$(CONFIG_MTD_OCELOT) += ocelot.o obj-$(CONFIG_MTD_SOLUTIONENGINE)+= solutionengine.o obj-$(CONFIG_MTD_PCI) += pci.o obj-$(CONFIG_MTD_ALCHEMY) += alchemy-flash.o -obj-$(CONFIG_MTD_LASAT) += lasat.o obj-$(CONFIG_MTD_AUTCPU12) += autcpu12-nvram.o obj-$(CONFIG_MTD_EDB7312) += edb7312.o obj-$(CONFIG_MTD_IMPA7) += impa7.o diff --git a/drivers/mtd/maps/lasat.c b/drivers/mtd/maps/lasat.c deleted file mode 100644 index e34376321050..000000000000 --- a/drivers/mtd/maps/lasat.c +++ /dev/null @@ -1,103 +0,0 @@ -/* - * Flash device on Lasat 100 and 200 boards - * - * (C) 2002 Brian Murphy <brian@murphy.dk> - * - * 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. - * - * $Id: lasat.c,v 1.9 2004/11/04 13:24:15 gleixner Exp $ - * - */ - -#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 <asm/lasat/lasat.h> - -static struct mtd_info *lasat_mtd; - -static struct mtd_partition partition_info[LASAT_MTD_LAST]; -static char *lasat_mtd_partnames[] = {"Bootloader", "Service", "Normal", "Filesystem", "Config"}; - -static void lasat_set_vpp(struct map_info *map, int vpp) -{ - if (vpp) - *lasat_misc->flash_wp_reg |= 1 << lasat_misc->flash_wp_bit; - else - *lasat_misc->flash_wp_reg &= ~(1 << lasat_misc->flash_wp_bit); -} - -static struct map_info lasat_map = { - .name = "LASAT flash", - .bankwidth = 4, - .set_vpp = lasat_set_vpp -}; - -static int __init init_lasat(void) -{ - int i; - /* since we use AMD chips and set_vpp is not implimented - * for these (yet) we still have to permanently enable flash write */ - printk(KERN_NOTICE "Unprotecting flash\n"); - ENABLE_VPP((&lasat_map)); - - lasat_map.phys = lasat_flash_partition_start(LASAT_MTD_BOOTLOADER); - lasat_map.virt = ioremap_nocache( - lasat_map.phys, lasat_board_info.li_flash_size); - lasat_map.size = lasat_board_info.li_flash_size; - - simple_map_init(&lasat_map); - - for (i=0; i < LASAT_MTD_LAST; i++) - partition_info[i].name = lasat_mtd_partnames[i]; - - lasat_mtd = do_map_probe("cfi_probe", &lasat_map); - - if (!lasat_mtd) - lasat_mtd = do_map_probe("jedec_probe", &lasat_map); - - if (lasat_mtd) { - u32 size, offset = 0; - - lasat_mtd->owner = THIS_MODULE; - - for (i=0; i < LASAT_MTD_LAST; i++) { - size = lasat_flash_partition_size(i); - partition_info[i].size = size; - partition_info[i].offset = offset; - offset += size; - } - - add_mtd_partitions( lasat_mtd, partition_info, LASAT_MTD_LAST ); - return 0; - } - - iounmap(lasat_map.virt); - return -ENXIO; -} - -static void __exit cleanup_lasat(void) -{ - if (lasat_mtd) { - del_mtd_partitions(lasat_mtd); - map_destroy(lasat_mtd); - } - if (lasat_map.virt) { - iounmap(lasat_map.virt); - lasat_map.virt = 0; - } -} - -module_init(init_lasat); -module_exit(cleanup_lasat); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Brian Murphy <brian@murphy.dk>"); -MODULE_DESCRIPTION("Lasat Safepipe/Masquerade MTD map driver"); diff --git a/drivers/mtd/maps/uclinux.c b/drivers/mtd/maps/uclinux.c index 389fea28b9a6..14ffb1a9302a 100644 --- a/drivers/mtd/maps/uclinux.c +++ b/drivers/mtd/maps/uclinux.c @@ -16,7 +16,6 @@ #include <linux/kernel.h> #include <linux/fs.h> #include <linux/major.h> -#include <linux/root_dev.h> #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> #include <linux/mtd/partitions.h> @@ -89,10 +88,6 @@ int __init uclinux_mtd_init(void) uclinux_ram_mtdinfo = mtd; add_mtd_partitions(mtd, uclinux_romfs, NUM_PARTITIONS); - printk("uclinux[mtd]: set %s to be root filesystem\n", - uclinux_romfs[0].name); - ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, 0); - return(0); } diff --git a/drivers/mtd/mtdsuper.c b/drivers/mtd/mtdsuper.c new file mode 100644 index 000000000000..aca331971201 --- /dev/null +++ b/drivers/mtd/mtdsuper.c @@ -0,0 +1,232 @@ +/* MTD-based superblock management + * + * Copyright © 2001-2007 Red Hat, Inc. All Rights Reserved. + * Written by: David Howells <dhowells@redhat.com> + * David Woodhouse <dwmw2@infradead.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <linux/mtd/super.h> +#include <linux/namei.h> +#include <linux/ctype.h> + +/* + * compare superblocks to see if they're equivalent + * - they are if the underlying MTD device is the same + */ +static int get_sb_mtd_compare(struct super_block *sb, void *_mtd) +{ + struct mtd_info *mtd = _mtd; + + if (sb->s_mtd == mtd) { + DEBUG(2, "MTDSB: Match on device %d (\"%s\")\n", + mtd->index, mtd->name); + return 1; + } + + DEBUG(2, "MTDSB: No match, device %d (\"%s\"), device %d (\"%s\")\n", + sb->s_mtd->index, sb->s_mtd->name, mtd->index, mtd->name); + return 0; +} + +/* + * mark the superblock by the MTD device it is using + * - set the device number to be the correct MTD block device for pesuperstence + * of NFS exports + */ +static int get_sb_mtd_set(struct super_block *sb, void *_mtd) +{ + struct mtd_info *mtd = _mtd; + + sb->s_mtd = mtd; + sb->s_dev = MKDEV(MTD_BLOCK_MAJOR, mtd->index); + return 0; +} + +/* + * get a superblock on an MTD-backed filesystem + */ +static int get_sb_mtd_aux(struct file_system_type *fs_type, int flags, + const char *dev_name, void *data, + struct mtd_info *mtd, + int (*fill_super)(struct super_block *, void *, int), + struct vfsmount *mnt) +{ + struct super_block *sb; + int ret; + + sb = sget(fs_type, get_sb_mtd_compare, get_sb_mtd_set, mtd); + if (IS_ERR(sb)) + goto out_error; + + if (sb->s_root) + goto already_mounted; + + /* fresh new superblock */ + DEBUG(1, "MTDSB: New superblock for device %d (\"%s\")\n", + mtd->index, mtd->name); + + ret = fill_super(sb, data, flags & MS_SILENT ? 1 : 0); + if (ret < 0) { + up_write(&sb->s_umount); + deactivate_super(sb); + return ret; + } + + /* go */ + sb->s_flags |= MS_ACTIVE; + return simple_set_mnt(mnt, sb); + + /* new mountpoint for an already mounted superblock */ +already_mounted: + DEBUG(1, "MTDSB: Device %d (\"%s\") is already mounted\n", + mtd->index, mtd->name); + ret = simple_set_mnt(mnt, sb); + goto out_put; + +out_error: + ret = PTR_ERR(sb); +out_put: + put_mtd_device(mtd); + return ret; +} + +/* + * get a superblock on an MTD-backed filesystem by MTD device number + */ +static int get_sb_mtd_nr(struct file_system_type *fs_type, int flags, + const char *dev_name, void *data, int mtdnr, + int (*fill_super)(struct super_block *, void *, int), + struct vfsmount *mnt) +{ + struct mtd_info *mtd; + + mtd = get_mtd_device(NULL, mtdnr); + if (IS_ERR(mtd)) { + DEBUG(0, "MTDSB: Device #%u doesn't appear to exist\n", mtdnr); + return PTR_ERR(mtd); + } + + return get_sb_mtd_aux(fs_type, flags, dev_name, data, mtd, fill_super, + mnt); +} + +/* + * set up an MTD-based superblock + */ +int get_sb_mtd(struct file_system_type *fs_type, int flags, + const char *dev_name, void *data, + int (*fill_super)(struct super_block *, void *, int), + struct vfsmount *mnt) +{ + struct nameidata nd; + int mtdnr, ret; + + if (!dev_name) + return -EINVAL; + + DEBUG(2, "MTDSB: dev_name \"%s\"\n", dev_name); + + /* the preferred way of mounting in future; especially when + * CONFIG_BLOCK=n - we specify the underlying MTD device by number or + * by name, so that we don't require block device support to be present + * in the kernel. */ + if (dev_name[0] == 'm' && dev_name[1] == 't' && dev_name[2] == 'd') { + if (dev_name[3] == ':') { + struct mtd_info *mtd; + + /* mount by MTD device name */ + DEBUG(1, "MTDSB: mtd:%%s, name \"%s\"\n", + dev_name + 4); + + for (mtdnr = 0; mtdnr < MAX_MTD_DEVICES; mtdnr++) { + mtd = get_mtd_device(NULL, mtdnr); + if (!IS_ERR(mtd)) { + if (!strcmp(mtd->name, dev_name + 4)) + return get_sb_mtd_aux( + fs_type, flags, + dev_name, data, mtd, + fill_super, mnt); + + put_mtd_device(mtd); + } + } + + printk(KERN_NOTICE "MTD:" + " MTD device with name \"%s\" not found.\n", + dev_name + 4); + + } else if (isdigit(dev_name[3])) { + /* mount by MTD device number name */ + char *endptr; + + mtdnr = simple_strtoul(dev_name + 3, &endptr, 0); + if (!*endptr) { + /* It was a valid number */ + DEBUG(1, "MTDSB: mtd%%d, mtdnr %d\n", + mtdnr); + return get_sb_mtd_nr(fs_type, flags, + dev_name, data, + mtdnr, fill_super, mnt); + } + } + } + + /* try the old way - the hack where we allowed users to mount + * /dev/mtdblock$(n) but didn't actually _use_ the blockdev + */ + ret = path_lookup(dev_name, LOOKUP_FOLLOW, &nd); + + DEBUG(1, "MTDSB: path_lookup() returned %d, inode %p\n", + ret, nd.dentry ? nd.dentry->d_inode : NULL); + + if (ret) + return ret; + + ret = -EINVAL; + + if (!S_ISBLK(nd.dentry->d_inode->i_mode)) + goto out; + + if (nd.mnt->mnt_flags & MNT_NODEV) { + ret = -EACCES; + goto out; + } + + if (imajor(nd.dentry->d_inode) != MTD_BLOCK_MAJOR) + goto not_an_MTD_device; + + mtdnr = iminor(nd.dentry->d_inode); + path_release(&nd); + + return get_sb_mtd_nr(fs_type, flags, dev_name, data, mtdnr, fill_super, + mnt); + +not_an_MTD_device: + if (!(flags & MS_SILENT)) + printk(KERN_NOTICE + "MTD: Attempt to mount non-MTD device \"%s\"\n", + dev_name); +out: + path_release(&nd); + return ret; + +} + +EXPORT_SYMBOL_GPL(get_sb_mtd); + +/* + * destroy an MTD-based superblock + */ +void kill_mtd_super(struct super_block *sb) +{ + generic_shutdown_super(sb); + put_mtd_device(sb->s_mtd); + sb->s_mtd = NULL; +} + +EXPORT_SYMBOL_GPL(kill_mtd_super); diff --git a/drivers/mtd/nand/autcpu12.c b/drivers/mtd/nand/autcpu12.c index fe94ae9ae1f2..e3744eb8eccb 100644 --- a/drivers/mtd/nand/autcpu12.c +++ b/drivers/mtd/nand/autcpu12.c @@ -101,7 +101,7 @@ static void autcpu12_hwcontrol(struct mtd_info *mtd, int cmd, struct nand_chip *chip = mtd->priv; if (ctrl & NAND_CTRL_CHANGE) { - void __iomem *addr + void __iomem *addr; unsigned char bits; addr = CS89712_VIRT_BASE + AUTCPU12_SMC_PORT_OFFSET; diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index 595208f965a5..17c868034aad 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -59,7 +59,7 @@ static unsigned long __initdata doc_locations[] = { #elif defined(CONFIG_MOMENCO_OCELOT) 0x2f000000, 0xff000000, -#elif defined(CONFIG_MOMENCO_OCELOT_G) || defined (CONFIG_MOMENCO_OCELOT_C) +#elif defined(CONFIG_MOMENCO_OCELOT_G) 0xff000000, #else #warning Unknown architecture for DiskOnChip. No default probe locations defined diff --git a/drivers/mtd/nand/ppchameleonevb.c b/drivers/mtd/nand/ppchameleonevb.c index eb7d4d443deb..082073acf20f 100644 --- a/drivers/mtd/nand/ppchameleonevb.c +++ b/drivers/mtd/nand/ppchameleonevb.c @@ -81,7 +81,7 @@ __setup("ppchameleonevb_fio_pbase=", ppchameleonevb_fio_pbase); */ static struct mtd_partition partition_info_hi[] = { { .name = "PPChameleon HI Nand Flash", - offset = 0, + .offset = 0, .size = 128 * 1024 * 1024 } }; @@ -424,9 +424,9 @@ static void __exit ppchameleonevb_cleanup(void) /* Release iomaps */ this = (struct nand_chip *) &ppchameleon_mtd[1]; - iounmap((void *) this->IO_ADDR_R; + iounmap((void *) this->IO_ADDR_R); this = (struct nand_chip *) &ppchameleonevb_mtd[1]; - iounmap((void *) this->IO_ADDR_R; + iounmap((void *) this->IO_ADDR_R); /* Free the MTD device structure */ kfree (ppchameleon_mtd); |
