diff options
Diffstat (limited to 'drivers/mtd')
88 files changed, 1991 insertions, 1388 deletions
diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig index 5ac265dde42..a03e862851d 100644 --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig @@ -86,14 +86,14 @@ config MTD_REDBOOT_DIRECTORY_BLOCK block and "-2" means the penultimate block. config MTD_REDBOOT_PARTS_UNALLOCATED - bool " Include unallocated flash regions" + bool "Include unallocated flash regions" depends on MTD_REDBOOT_PARTS help If you need to register each unallocated flash region as a MTD 'partition', enable this option. config MTD_REDBOOT_PARTS_READONLY - bool " Force read-only for RedBoot system images" + bool "Force read-only for RedBoot system images" depends on MTD_REDBOOT_PARTS help If you need to force read-only for 'RedBoot', 'RedBoot Config' and @@ -101,7 +101,7 @@ config MTD_REDBOOT_PARTS_READONLY config MTD_CMDLINE_PARTS bool "Command line partition table parsing" - depends on MTD_PARTITIONS = "y" + depends on MTD_PARTITIONS = "y" && MTD = "y" ---help--- Allow generic configuration of the MTD partition tables via the kernel command line. Multiple flash resources are supported for hardware where @@ -263,6 +263,14 @@ config RFD_FTL http://www.gensw.com/pages/prod/bios/rfd.htm +config SSFDC + tristate "NAND SSFDC (SmartMedia) read only translation layer" + depends on MTD + default n + help + This enables read only access to SmartMedia formatted NAND + flash. You can mount it with FAT file system. + source "drivers/mtd/chips/Kconfig" source "drivers/mtd/maps/Kconfig" diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile index fc9374407c2..1e36b9aed98 100644 --- a/drivers/mtd/Makefile +++ b/drivers/mtd/Makefile @@ -21,6 +21,7 @@ obj-$(CONFIG_FTL) += ftl.o mtd_blkdevs.o obj-$(CONFIG_NFTL) += nftl.o mtd_blkdevs.o obj-$(CONFIG_INFTL) += inftl.o mtd_blkdevs.o obj-$(CONFIG_RFD_FTL) += rfd_ftl.o mtd_blkdevs.o +obj-$(CONFIG_SSFDC) += ssfdc.o mtd_blkdevs.o nftl-objs := nftlcore.o nftlmount.o inftl-objs := inftlcore.o inftlmount.o diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c index 0d435814aaa..7ea49a0d5ec 100644 --- a/drivers/mtd/chips/cfi_cmdset_0001.c +++ b/drivers/mtd/chips/cfi_cmdset_0001.c @@ -357,6 +357,7 @@ struct mtd_info *cfi_cmdset_0001(struct map_info *map, int primary) mtd->resume = cfi_intelext_resume; mtd->flags = MTD_CAP_NORFLASH; mtd->name = map->name; + mtd->writesize = 1; mtd->reboot_notifier.notifier_call = cfi_intelext_reboot; @@ -907,7 +908,7 @@ static void __xipram xip_enable(struct map_info *map, struct flchip *chip, static int __xipram xip_wait_for_operation( struct map_info *map, struct flchip *chip, - unsigned long adr, int *chip_op_time ) + unsigned long adr, unsigned int chip_op_time ) { struct cfi_private *cfi = map->fldrv_priv; struct cfi_pri_intelext *cfip = cfi->cmdset_priv; @@ -916,7 +917,7 @@ static int __xipram xip_wait_for_operation( flstate_t oldstate, newstate; start = xip_currtime(); - usec = *chip_op_time * 8; + usec = chip_op_time * 8; if (usec == 0) usec = 500000; done = 0; @@ -1026,8 +1027,8 @@ static int __xipram xip_wait_for_operation( #define XIP_INVAL_CACHED_RANGE(map, from, size) \ INVALIDATE_CACHED_RANGE(map, from, size) -#define INVAL_CACHE_AND_WAIT(map, chip, cmd_adr, inval_adr, inval_len, p_usec) \ - xip_wait_for_operation(map, chip, cmd_adr, p_usec) +#define INVAL_CACHE_AND_WAIT(map, chip, cmd_adr, inval_adr, inval_len, usec) \ + xip_wait_for_operation(map, chip, cmd_adr, usec) #else @@ -1039,64 +1040,64 @@ static int __xipram xip_wait_for_operation( static int inval_cache_and_wait_for_operation( struct map_info *map, struct flchip *chip, unsigned long cmd_adr, unsigned long inval_adr, int inval_len, - int *chip_op_time ) + unsigned int chip_op_time) { struct cfi_private *cfi = map->fldrv_priv; map_word status, status_OK = CMD(0x80); - int z, chip_state = chip->state; - unsigned long timeo; + int chip_state = chip->state; + unsigned int timeo, sleep_time; spin_unlock(chip->mutex); if (inval_len) INVALIDATE_CACHED_RANGE(map, inval_adr, inval_len); - if (*chip_op_time) - cfi_udelay(*chip_op_time); spin_lock(chip->mutex); - timeo = *chip_op_time * 8 * HZ / 1000000; - if (timeo < HZ/2) - timeo = HZ/2; - timeo += jiffies; + /* set our timeout to 8 times the expected delay */ + timeo = chip_op_time * 8; + if (!timeo) + timeo = 500000; + sleep_time = chip_op_time / 2; - z = 0; for (;;) { - if (chip->state != chip_state) { - /* Someone's suspended the operation: sleep */ - DECLARE_WAITQUEUE(wait, current); - - set_current_state(TASK_UNINTERRUPTIBLE); - add_wait_queue(&chip->wq, &wait); - spin_unlock(chip->mutex); - schedule(); - remove_wait_queue(&chip->wq, &wait); - timeo = jiffies + (HZ / 2); /* FIXME */ - spin_lock(chip->mutex); - continue; - } - status = map_read(map, cmd_adr); if (map_word_andequal(map, status, status_OK, status_OK)) break; - /* OK Still waiting */ - if (time_after(jiffies, timeo)) { + if (!timeo) { map_write(map, CMD(0x70), cmd_adr); chip->state = FL_STATUS; return -ETIME; } - /* Latency issues. Drop the lock, wait a while and retry */ - z++; + /* OK Still waiting. Drop the lock, wait a while and retry. */ spin_unlock(chip->mutex); - cfi_udelay(1); + if (sleep_time >= 1000000/HZ) { + /* + * Half of the normal delay still remaining + * can be performed with a sleeping delay instead + * of busy waiting. + */ + msleep(sleep_time/1000); + timeo -= sleep_time; + sleep_time = 1000000/HZ; + } else { + udelay(1); + cond_resched(); + timeo--; + } spin_lock(chip->mutex); - } - if (!z) { - if (!--(*chip_op_time)) - *chip_op_time = 1; - } else if (z > 1) - ++(*chip_op_time); + if (chip->state != chip_state) { + /* Someone's suspended the operation: sleep */ + DECLARE_WAITQUEUE(wait, current); + set_current_state(TASK_UNINTERRUPTIBLE); + add_wait_queue(&chip->wq, &wait); + spin_unlock(chip->mutex); + schedule(); + remove_wait_queue(&chip->wq, &wait); + spin_lock(chip->mutex); + } + } /* Done and happy. */ chip->state = FL_STATUS; @@ -1106,8 +1107,7 @@ static int inval_cache_and_wait_for_operation( #endif #define WAIT_TIMEOUT(map, chip, adr, udelay) \ - ({ int __udelay = (udelay); \ - INVAL_CACHE_AND_WAIT(map, chip, adr, 0, 0, &__udelay); }) + INVAL_CACHE_AND_WAIT(map, chip, adr, 0, 0, udelay); static int do_point_onechip (struct map_info *map, struct flchip *chip, loff_t adr, size_t len) @@ -1331,7 +1331,7 @@ static int __xipram do_write_oneword(struct map_info *map, struct flchip *chip, ret = INVAL_CACHE_AND_WAIT(map, chip, adr, adr, map_bankwidth(map), - &chip->word_write_time); + chip->word_write_time); if (ret) { xip_enable(map, chip, adr); printk(KERN_ERR "%s: word write error (status timeout)\n", map->name); @@ -1568,7 +1568,7 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip, ret = INVAL_CACHE_AND_WAIT(map, chip, cmd_adr, adr, len, - &chip->buffer_write_time); + chip->buffer_write_time); if (ret) { map_write(map, CMD(0x70), cmd_adr); chip->state = FL_STATUS; @@ -1703,7 +1703,7 @@ static int __xipram do_erase_oneblock(struct map_info *map, struct flchip *chip, ret = INVAL_CACHE_AND_WAIT(map, chip, adr, adr, len, - &chip->erase_time); + chip->erase_time); if (ret) { map_write(map, CMD(0x70), adr); chip->state = FL_STATUS; diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index 1e01ad38b26..702ae4cd869 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -21,7 +21,6 @@ * */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> @@ -46,9 +45,11 @@ #define MAX_WORD_RETRIES 3 #define MANUFACTURER_AMD 0x0001 +#define MANUFACTURER_ATMEL 0x001F #define MANUFACTURER_SST 0x00BF #define SST49LF004B 0x0060 #define SST49LF008A 0x005a +#define AT49BV6416 0x00d6 static int cfi_amdstd_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *); static int cfi_amdstd_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *); @@ -69,6 +70,9 @@ static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr static void put_chip(struct map_info *map, struct flchip *chip, unsigned long adr); #include "fwh_lock.h" +static int cfi_atmel_lock(struct mtd_info *mtd, loff_t ofs, size_t len); +static int cfi_atmel_unlock(struct mtd_info *mtd, loff_t ofs, size_t len); + static struct mtd_chip_driver cfi_amdstd_chipdrv = { .probe = NULL, /* Not usable directly */ .destroy = cfi_amdstd_destroy, @@ -162,6 +166,26 @@ static void fixup_use_write_buffers(struct mtd_info *mtd, void *param) } } +/* Atmel chips don't use the same PRI format as AMD chips */ +static void fixup_convert_atmel_pri(struct mtd_info *mtd, void *param) +{ + struct map_info *map = mtd->priv; + struct cfi_private *cfi = map->fldrv_priv; + struct cfi_pri_amdstd *extp = cfi->cmdset_priv; + struct cfi_pri_atmel atmel_pri; + + memcpy(&atmel_pri, extp, sizeof(atmel_pri)); + memset((char *)extp + 5, 0, sizeof(*extp) - 5); + + if (atmel_pri.Features & 0x02) + extp->EraseSuspend = 2; + + if (atmel_pri.BottomBoot) + extp->TopBottom = 2; + else + extp->TopBottom = 3; +} + static void fixup_use_secsi(struct mtd_info *mtd, void *param) { /* Setup for chips with a secsi area */ @@ -180,6 +204,17 @@ static void fixup_use_erase_chip(struct mtd_info *mtd, void *param) } +/* + * Some Atmel chips (e.g. the AT49BV6416) power-up with all sectors + * locked by default. + */ +static void fixup_use_atmel_lock(struct mtd_info *mtd, void *param) +{ + mtd->lock = cfi_atmel_lock; + mtd->unlock = cfi_atmel_unlock; + mtd->flags |= MTD_STUPID_LOCK; +} + static struct cfi_fixup cfi_fixup_table[] = { #ifdef AMD_BOOTLOC_BUG { CFI_MFR_AMD, CFI_ID_ANY, fixup_amd_bootblock, NULL }, @@ -193,6 +228,7 @@ static struct cfi_fixup cfi_fixup_table[] = { #if !FORCE_WORD_WRITE { CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, }, #endif + { CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL }, { 0, 0, NULL, NULL } }; static struct cfi_fixup jedec_fixup_table[] = { @@ -208,6 +244,7 @@ static struct cfi_fixup fixup_table[] = { * we know that is the case. */ { CFI_MFR_ANY, CFI_ID_ANY, fixup_use_erase_chip, NULL }, + { CFI_MFR_ATMEL, AT49BV6416, fixup_use_atmel_lock, NULL }, { 0, 0, NULL, NULL } }; @@ -1608,6 +1645,80 @@ static int cfi_amdstd_erase_chip(struct mtd_info *mtd, struct erase_info *instr) return 0; } +static int do_atmel_lock(struct map_info *map, struct flchip *chip, + unsigned long adr, int len, void *thunk) +{ + struct cfi_private *cfi = map->fldrv_priv; + int ret; + + spin_lock(chip->mutex); + ret = get_chip(map, chip, adr + chip->start, FL_LOCKING); + if (ret) + goto out_unlock; + chip->state = FL_LOCKING; + + DEBUG(MTD_DEBUG_LEVEL3, "MTD %s(): LOCK 0x%08lx len %d\n", + __func__, adr, len); + + cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, + cfi->device_type, NULL); + cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, + cfi->device_type, NULL); + cfi_send_gen_cmd(0x80, cfi->addr_unlock1, chip->start, map, cfi, + cfi->device_type, NULL); + cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, + cfi->device_type, NULL); + cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, + cfi->device_type, NULL); + map_write(map, CMD(0x40), chip->start + adr); + + chip->state = FL_READY; + put_chip(map, chip, adr + chip->start); + ret = 0; + +out_unlock: + spin_unlock(chip->mutex); + return ret; +} + +static int do_atmel_unlock(struct map_info *map, struct flchip *chip, + unsigned long adr, int len, void *thunk) +{ + struct cfi_private *cfi = map->fldrv_priv; + int ret; + + spin_lock(chip->mutex); + ret = get_chip(map, chip, adr + chip->start, FL_UNLOCKING); + if (ret) + goto out_unlock; + chip->state = FL_UNLOCKING; + + DEBUG(MTD_DEBUG_LEVEL3, "MTD %s(): LOCK 0x%08lx len %d\n", + __func__, adr, len); + + cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, + cfi->device_type, NULL); + map_write(map, CMD(0x70), adr); + + chip->state = FL_READY; + put_chip(map, chip, adr + chip->start); + ret = 0; + +out_unlock: + spin_unlock(chip->mutex); + return ret; +} + +static int cfi_atmel_lock(struct mtd_info *mtd, loff_t ofs, size_t len) +{ + return cfi_varsize_frob(mtd, do_atmel_lock, ofs, len, NULL); +} + +static int cfi_atmel_unlock(struct mtd_info *mtd, loff_t ofs, size_t len) +{ + return cfi_varsize_frob(mtd, do_atmel_unlock, ofs, len, NULL); +} + static void cfi_amdstd_sync (struct mtd_info *mtd) { diff --git a/drivers/mtd/chips/cfi_probe.c b/drivers/mtd/chips/cfi_probe.c index 4bf9f8cac0d..60e11a0ada9 100644 --- a/drivers/mtd/chips/cfi_probe.c +++ b/drivers/mtd/chips/cfi_probe.c @@ -4,7 +4,6 @@ $Id: cfi_probe.c,v 1.86 2005/11/29 14:48:31 gleixner Exp $ */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> diff --git a/drivers/mtd/chips/chipreg.c b/drivers/mtd/chips/chipreg.c index c2127840a18..2174c97549f 100644 --- a/drivers/mtd/chips/chipreg.c +++ b/drivers/mtd/chips/chipreg.c @@ -6,7 +6,6 @@ */ #include <linux/kernel.h> -#include <linux/config.h> #include <linux/module.h> #include <linux/kmod.h> #include <linux/spinlock.h> diff --git a/drivers/mtd/chips/jedec.c b/drivers/mtd/chips/jedec.c index c40b48dabed..2c3f019197c 100644 --- a/drivers/mtd/chips/jedec.c +++ b/drivers/mtd/chips/jedec.c @@ -256,6 +256,7 @@ static struct mtd_info *jedec_probe(struct map_info *map) MTD->name = map->name; MTD->type = MTD_NORFLASH; MTD->flags = MTD_CAP_NORFLASH; + MTD->writesize = 1; MTD->erasesize = SectorSize*(map->buswidth); // printk("MTD->erasesize is %x\n",(unsigned int)MTD->erasesize); MTD->size = priv->size; diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c index 517ea33e726..1154dac715a 100644 --- a/drivers/mtd/chips/jedec_probe.c +++ b/drivers/mtd/chips/jedec_probe.c @@ -8,7 +8,6 @@ Occasionally maintained by Thayne Harbaugh tharbaugh at lnxi dot com */ -#include <linux/config.h> #include <linux/module.h> #include <linux/init.h> #include <linux/types.h> @@ -112,6 +111,7 @@ #define MX29LV040C 0x004F #define MX29LV160T 0x22C4 #define MX29LV160B 0x2249 +#define MX29F040 0x00A4 #define MX29F016 0x00AD #define MX29F002T 0x00B0 #define MX29F004T 0x0045 @@ -1173,6 +1173,19 @@ static const struct amd_flash_info jedec_table[] = { } }, { .mfr_id = MANUFACTURER_MACRONIX, + .dev_id = MX29F040, + .name = "Macronix MX29F040", + .uaddr = { + [0] = MTD_UADDR_0x0555_0x02AA /* x8 */ + }, + .DevSize = SIZE_512KiB, + .CmdSet = P_ID_AMD_STD, + .NumEraseRegions= 1, + .regions = { + ERASEINFO(0x10000,8), + } + }, { + .mfr_id = MANUFACTURER_MACRONIX, .dev_id = MX29F016, .name = "Macronix MX29F016", .uaddr = { diff --git a/drivers/mtd/chips/map_absent.c b/drivers/mtd/chips/map_absent.c index a611de9b151..ac01a949b68 100644 --- a/drivers/mtd/chips/map_absent.c +++ b/drivers/mtd/chips/map_absent.c @@ -64,7 +64,8 @@ static struct mtd_info *map_absent_probe(struct map_info *map) mtd->write = map_absent_write; mtd->sync = map_absent_sync; mtd->flags = 0; - mtd->erasesize = PAGE_SIZE; + mtd->erasesize = PAGE_SIZE; + mtd->writesize = 1; __module_get(THIS_MODULE); return mtd; diff --git a/drivers/mtd/chips/map_ram.c b/drivers/mtd/chips/map_ram.c index 763925747db..3a66680abfd 100644 --- a/drivers/mtd/chips/map_ram.c +++ b/drivers/mtd/chips/map_ram.c @@ -71,6 +71,7 @@ static struct mtd_info *map_ram_probe(struct map_info *map) mtd->write = mapram_write; mtd->sync = mapram_nop; mtd->flags = MTD_CAP_RAM; + mtd->writesize = 1; mtd->erasesize = PAGE_SIZE; while(mtd->size & (mtd->erasesize - 1)) diff --git a/drivers/mtd/chips/map_rom.c b/drivers/mtd/chips/map_rom.c index bc6ee9ef8a3..1b328b1378f 100644 --- a/drivers/mtd/chips/map_rom.c +++ b/drivers/mtd/chips/map_rom.c @@ -47,6 +47,7 @@ static struct mtd_info *map_rom_probe(struct map_info *map) mtd->sync = maprom_nop; mtd->flags = MTD_CAP_ROM; mtd->erasesize = map->size; + mtd->writesize = 1; __module_get(THIS_MODULE); return mtd; diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index 0d98c223c5f..401c6a294ba 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -8,7 +8,6 @@ * * Licence: GPL */ -#include <linux/config.h> #include <linux/module.h> #include <linux/fs.h> #include <linux/blkdev.h> @@ -19,6 +18,7 @@ #include <linux/mtd/mtd.h> #include <linux/buffer_head.h> #include <linux/mutex.h> +#include <linux/mount.h> #define VERSION "$Revision: 1.30 $" @@ -237,6 +237,8 @@ static int _block2mtd_write(struct block2mtd_dev *dev, const u_char *buf, } return 0; } + + static int block2mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf) { @@ -300,6 +302,19 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size) /* Get a handle on the device */ bdev = open_bdev_excl(devname, O_RDWR, NULL); +#ifndef MODULE + if (IS_ERR(bdev)) { + + /* We might not have rootfs mounted at this point. Try + to resolve the device name by other means. */ + + dev_t dev = name_to_dev_t(devname); + if (dev != 0) { + bdev = open_by_devnum(dev, FMODE_WRITE | FMODE_READ); + } + } +#endif + if (IS_ERR(bdev)) { ERROR("error: cannot open device %s", devname); goto devinit_err; @@ -324,6 +339,7 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size) dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK; dev->mtd.erasesize = erase_size; + dev->mtd.writesize = 1; dev->mtd.type = MTD_RAM; dev->mtd.flags = MTD_CAP_RAM; dev->mtd.erase = block2mtd_erase; @@ -393,26 +409,6 @@ static int parse_num(size_t *num, const char *token) } -static int parse_name(char **pname, const char *token, size_t limit) -{ - size_t len; - char *name; - - len = strlen(token) + 1; - if (len > limit) - return -ENOSPC; - - name = kmalloc(len, GFP_KERNEL); - if (!name) - return -ENOMEM; - - strcpy(name, token); - - *pname = name; - return 0; -} - - static inline void kill_final_newline(char *str) { char *newline = strrchr(str, '\n'); @@ -426,9 +422,15 @@ static inline void kill_final_newline(char *str) return 0; \ } while (0) -static int block2mtd_setup(const char *val, struct kernel_param *kp) +#ifndef MODULE +static int block2mtd_init_called = 0; +static __initdata char block2mtd_paramline[80 + 12]; /* 80 for device, 12 for erase size */ +#endif + + +static int block2mtd_setup2(const char *val) { - char buf[80+12]; /* 80 for device, 12 for erase size */ + char buf[80 + 12]; /* 80 for device, 12 for erase size */ char *str = buf; char *token[2]; char *name; @@ -450,13 +452,9 @@ static int block2mtd_setup(const char *val, struct kernel_param *kp) if (!token[0]) parse_err("no argument"); - ret = parse_name(&name, token[0], 80); - if (ret == -ENOMEM) - parse_err("out of memory"); - if (ret == -ENOSPC) - parse_err("name too long"); - if (ret) - return 0; + name = token[0]; + if (strlen(name) + 1 > 80) + parse_err("device name too long"); if (token[1]) { ret = parse_num(&erase_size, token[1]); @@ -472,13 +470,48 @@ static int block2mtd_setup(const char *val, struct kernel_param *kp) } +static int block2mtd_setup(const char *val, struct kernel_param *kp) +{ +#ifdef MODULE + return block2mtd_setup2(val); +#else + /* If more parameters are later passed in via + /sys/module/block2mtd/parameters/block2mtd + and block2mtd_init() has already been called, + we can parse the argument now. */ + + if (block2mtd_init_called) + return block2mtd_setup2(val); + + /* During early boot stage, we only save the parameters + here. We must parse them later: if the param passed + from kernel boot command line, block2mtd_setup() is + called so early that it is not possible to resolve + the device (even kmalloc() fails). Deter that work to + block2mtd_setup2(). */ + + strlcpy(block2mtd_paramline, val, sizeof(block2mtd_paramline)); + + return 0; +#endif +} + + module_param_call(block2mtd, block2mtd_setup, NULL, NULL, 0200); MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=<dev>[,<erasesize>]\""); static int __init block2mtd_init(void) { + int ret = 0; INFO("version " VERSION); - return 0; + +#ifndef MODULE + if (strlen(block2mtd_paramline)) + ret = block2mtd_setup2(block2mtd_paramline); + block2mtd_init_called = 1; +#endif + + return ret; } diff --git a/drivers/mtd/devices/doc2000.c b/drivers/mtd/devices/doc2000.c index c54e40464d8..603a7951ac9 100644 --- a/drivers/mtd/devices/doc2000.c +++ b/drivers/mtd/devices/doc2000.c @@ -55,10 +55,6 @@ static int doc_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf); static int doc_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf); -static int doc_read_ecc(struct mtd_info *mtd, loff_t from, size_t len, - size_t *retlen, u_char *buf, u_char *eccbuf, struct nand_oobinfo *oobsel); -static int doc_write_ecc(struct mtd_info *mtd, loff_t to, size_t len, - size_t *retlen, const u_char *buf, u_char *eccbuf, struct nand_oobinfo *oobsel); static int doc_read_oob(struct mtd_info *mtd, loff_t ofs, struct mtd_oob_ops *ops); static int doc_write_oob(struct mtd_info *mtd, loff_t ofs, @@ -615,17 +611,10 @@ EXPORT_SYMBOL_GPL(DoC2k_init); static int doc_read(struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf) { - /* Just a special case of doc_read_ecc */ - return doc_read_ecc(mtd, from, len, retlen, buf, NULL, NULL); -} - -static int doc_read_ecc(struct mtd_info *mtd, loff_t from, size_t len, - size_t * retlen, u_char * buf, u_char * eccbuf, struct nand_oobinfo *oobsel) -{ struct DiskOnChip *this = mtd->priv; void __iomem *docptr = this->virtadr; struct Nand *mychip; - unsigned char syndrome[6]; + unsigned char syndrome[6], eccbuf[6]; volatile char dummy; int i, len256 = 0, ret=0; size_t left = len; @@ -673,15 +662,9 @@ static int doc_read_ecc(struct mtd_info *mtd, loff_t from, size_t len, DoC_Address(this, ADDR_COLUMN_PAGE, from, CDSN_CTRL_WP, CDSN_CTRL_ECC_IO); - if (eccbuf) { - /* Prime the ECC engine */ - WriteDOC(DOC_ECC_RESET, docptr, ECCConf); - WriteDOC(DOC_ECC_EN, docptr, ECCConf); - } else { - /* disable the ECC engine */ - WriteDOC(DOC_ECC_RESET, docptr, ECCConf); - WriteDOC(DOC_ECC_DIS, docptr, ECCConf); - } + /* Prime the ECC engine */ + WriteDOC(DOC_ECC_RESET, docptr, ECCConf); + WriteDOC(DOC_ECC_EN, docptr, ECCConf); /* treat crossing 256-byte sector for 2M x 8bits devices */ if (this->page256 && from + len > (from | 0xff) + 1) { @@ -698,58 +681,59 @@ static int doc_read_ecc(struct mtd_info *mtd, loff_t from, size_t len, /* Let the caller know we completed it */ *retlen += len; - if (eccbuf) { - /* Read the ECC data through the DiskOnChip ECC logic */ - /* Note: this will work even with 2M x 8bit devices as */ - /* they have 8 bytes of OOB per 256 page. mf. */ - DoC_ReadBuf(this, eccbuf, 6); - - /* Flush the pipeline */ - if (DoC_is_Millennium(this)) { - dummy = ReadDOC(docptr, ECCConf); - dummy = ReadDOC(docptr, ECCConf); - i = ReadDOC(docptr, ECCConf); - } else { - dummy = ReadDOC(docptr, 2k_ECCStatus); - dummy = ReadDOC(docptr, 2k_ECCStatus); - i = ReadDOC(docptr, 2k_ECCStatus); - } + /* Read the ECC data through the DiskOnChip ECC logic */ + /* Note: this will work even with 2M x 8bit devices as */ + /* they have 8 bytes of OOB per 256 page. mf. */ + DoC_ReadBuf(this, eccbuf, 6); - /* Check the ECC Status */ - if (i & 0x80) { - int nb_errors; - /* There was an ECC error */ + /* Flush the pipeline */ + if (DoC_is_Millennium(this)) { + dummy = ReadDOC(docptr, ECCConf); + dummy = ReadDOC(docptr, ECCConf); + i = ReadDOC(docptr, ECCConf); + } else { + dummy = ReadDOC(docptr, 2k_ECCStatus); + dummy = ReadDOC(docptr, 2k_ECCStatus); + i = ReadDOC(docptr, 2k_ECCStatus); + } + + /* Check the ECC Status */ + if (i & 0x80) { + int nb_errors; + /* There was an ECC error */ #ifdef ECC_DEBUG - printk(KERN_ERR "DiskOnChip ECC Error: Read at %lx\n", (long)from); + printk(KERN_ERR "DiskOnChip ECC Error: Read at %lx\n", (long)from); #endif - /* Read the ECC syndrom through the DiskOnChip ECC logic. - These syndrome will be all ZERO when there is no error */ - for (i = 0; i < 6; i++) { - syndrome[i] = - ReadDOC(docptr, ECCSyndrome0 + i); - } - nb_errors = doc_decode_ecc(buf, syndrome); + /* Read the ECC syndrom through the DiskOnChip ECC + logic. These syndrome will be all ZERO when there + is no error */ + for (i = 0; i < 6; i++) { + syndrome[i] = + ReadDOC(docptr, ECCSyndrome0 + i); + } + nb_errors = doc_decode_ecc(buf, syndrome); #ifdef ECC_DEBUG - printk(KERN_ERR "Errors corrected: %x\n", nb_errors); + printk(KERN_ERR "Errors corrected: %x\n", nb_errors); #endif - if (nb_errors < 0) { - /* We return error, but have actually done the read. Not that - this can be told to user-space, via sys_read(), but at least - MTD-aware stuff can know about it by checking *retlen */ - ret = -EIO; - } + if (nb_errors < 0) { + /* We return error, but have actually done the + read. Not that this can be told to + user-space, via sys_read(), but at least + MTD-aware stuff can know about it by + checking *retlen */ + ret = -EIO; } + } #ifdef PSYCHO_DEBUG - printk(KERN_DEBUG "ECC DATA at %lxB: %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n", - (long)from, eccbuf[0], eccbuf[1], eccbuf[2], - eccbuf[3], eccbuf[4], eccbuf[5]); + printk(KERN_DEBUG "ECC DATA at %lxB: %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n", + (long)from, eccbuf[0], eccbuf[1], eccbuf[2], + eccbuf[3], eccbuf[4], eccbuf[5]); #endif - /* disable the ECC engine */ - WriteDOC(DOC_ECC_DIS, docptr , ECCConf); - } + /* disable the ECC engine */ + WriteDOC(DOC_ECC_DIS, docptr , ECCConf); /* according to 11.4.1, we need to wait for the busy line * drop if we read to the end of the page. */ @@ -771,17 +755,10 @@ static int doc_read_ecc(struct mtd_info *mtd, loff_t from, size_t len, static int doc_write(struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char * buf) { - char eccbuf[6]; - return doc_write_ecc(mtd, to, len, retlen, buf, eccbuf, NULL); -} - -static int doc_write_ecc(struct mtd_info *mtd, loff_t to, size_t len, - size_t * retlen, const u_char * buf, - u_char * eccbuf, struct nand_oobinfo *oobsel) -{ struct DiskOnChip *this = mtd->priv; int di; /* Yes, DI is a hangover from when I was disassembling the binary driver */ void __iomem *docptr = this->virtadr; + unsigned char eccbuf[6]; volatile char dummy; int len256 = 0; struct Nand *mychip; @@ -835,15 +812,9 @@ static int doc_write_ecc(struct mtd_info *mtd, loff_t to, size_t len, DoC_Command(this, NAND_CMD_SEQIN, 0); DoC_Address(this, ADDR_COLUMN_PAGE, to, 0, CDSN_CTRL_ECC_IO); - if (eccbuf) { - /* Prime the ECC engine */ - WriteDOC(DOC_ECC_RESET, docptr, ECCConf); - WriteDOC(DOC_ECC_EN | DOC_ECC_RW, docptr, ECCConf); - } else { - /* disable the ECC engine */ - WriteDOC(DOC_ECC_RESET, docptr, ECCConf); - WriteDOC(DOC_ECC_DIS, docptr, ECCConf); - } + /* Prime the ECC engine */ + WriteDOC(DOC_ECC_RESET, docptr, ECCConf); + WriteDOC(DOC_ECC_EN | DOC_ECC_RW, docptr, ECCConf); /* treat crossing 256-byte sector for 2M x 8bits devices */ if (this->page256 && to + len > (to | 0xff) + 1) { @@ -873,39 +844,35 @@ static int doc_write_ecc(struct mtd_info *mtd, loff_t to, size_t len, DoC_WriteBuf(this, &buf[len256], len - len256); - if (eccbuf) { - WriteDOC(CDSN_CTRL_ECC_IO | CDSN_CTRL_CE, docptr, - CDSNControl); - - if (DoC_is_Millennium(this)) { - WriteDOC(0, docptr, NOP); - WriteDOC(0, docptr, NOP); - WriteDOC(0, docptr, NOP); - } else { - WriteDOC_(0, docptr, this->ioreg); - WriteDOC_(0, docptr, this->ioreg); - WriteDOC_(0, docptr, this->ioreg); - } + WriteDOC(CDSN_CTRL_ECC_IO | CDSN_CTRL_CE, docptr, CDSNControl); - WriteDOC(CDSN_CTRL_ECC_IO | CDSN_CTRL_FLASH_IO | CDSN_CTRL_CE, docptr, - CDSNControl); + if (DoC_is_Millennium(this)) { + WriteDOC(0, docptr, NOP); + WriteDOC(0, docptr, NOP); + WriteDOC(0, docptr, NOP); + } else { + WriteDOC_(0, docptr, this->ioreg); + WriteDOC_(0, docptr, this->ioreg); + WriteDOC_(0, docptr, this->ioreg); + } - /* Read the ECC data through the DiskOnChip ECC logic */ - for (di = 0; di < 6; di++) { - eccbuf[di] = ReadDOC(docptr, ECCSyndrome0 + di); - } + WriteDOC(CDSN_CTRL_ECC_IO | CDSN_CTRL_FLASH_IO | CDSN_CTRL_CE, docptr, + CDSNControl); - /* Reset the ECC engine */ - WriteDOC(DOC_ECC_DIS, docptr, ECCConf); + /* Read the ECC data through the DiskOnChip ECC logic */ + for (di = 0; di < 6; di++) { + eccbuf[di] = ReadDOC(docptr, ECCSyndrome0 + di); + } + + /* Reset the ECC engine */ + WriteDOC(DOC_ECC_DIS, docptr, ECCConf); #ifdef PSYCHO_DEBUG - printk - ("OOB data at %lx is %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n", - (long) to, eccbuf[0], eccbuf[1], eccbuf[2], eccbuf[3], - eccbuf[4], eccbuf[5]); + printk + ("OOB data at %lx is %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n", + (long) to, eccbuf[0], eccbuf[1], eccbuf[2], eccbuf[3], + eccbuf[4], eccbuf[5]); #endif - } - DoC_Command(this, NAND_CMD_PAGEPROG, 0); DoC_Command(this, NAND_CMD_STATUS, CDSN_CTRL_WP); diff --git a/drivers/mtd/devices/doc2001.c b/drivers/mtd/devices/doc2001.c index 0cf022a69e6..0e2a9326f71 100644 --- a/drivers/mtd/devices/doc2001.c +++ b/drivers/mtd/devices/doc2001.c @@ -37,12 +37,6 @@ static int doc_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf); static int doc_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf); -static int doc_read_ecc(struct mtd_info *mtd, loff_t from, size_t len, - size_t *retlen, u_char *buf, u_char *eccbuf, - struct nand_oobinfo *oobsel); -static int doc_write_ecc(struct mtd_info *mtd, loff_t to, size_t len, - size_t *retlen, const u_char *buf, u_char *eccbuf, - struct nand_oobinfo *oobsel); static int doc_read_oob(struct mtd_info *mtd, loff_t ofs, struct mtd_oob_ops *ops); static int doc_write_oob(struct mtd_info *mtd, loff_t ofs, @@ -397,17 +391,9 @@ EXPORT_SYMBOL_GPL(DoCMil_init); static int doc_read (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf) { - /* Just a special case of doc_read_ecc */ - return doc_read_ecc(mtd, from, len, retlen, buf, NULL, NULL); -} - -static int doc_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, - size_t *retlen, u_char *buf, u_char *eccbuf, - struct nand_oobinfo *oobsel) -{ int i, ret; volatile char dummy; - unsigned char syndrome[6]; + unsigned char syndrome[6], eccbuf[6]; struct DiskOnChip *this = mtd->priv; void __iomem *docptr = this->virtadr; struct Nand *mychip = &this->chips[from >> (this->chipshift)]; @@ -437,15 +423,9 @@ static int doc_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, DoC_Address(docptr, 3, from, CDSN_CTRL_WP, 0x00); DoC_WaitReady(docptr); - if (eccbuf) { - /* init the ECC engine, see Reed-Solomon EDC/ECC 11.1 .*/ - WriteDOC (DOC_ECC_RESET, docptr, ECCConf); - WriteDOC (DOC_ECC_EN, docptr, ECCConf); - } else { - /* disable the ECC engine */ - WriteDOC (DOC_ECC_RESET, docptr, ECCConf); - WriteDOC (DOC_ECC_DIS, docptr, ECCConf); - } + /* init the ECC engine, see Reed-Solomon EDC/ECC 11.1 .*/ + WriteDOC (DOC_ECC_RESET, docptr, ECCConf); + WriteDOC (DOC_ECC_EN, docptr, ECCConf); /* Read the data via the internal pipeline through CDSN IO register, see Pipelined Read Operations 11.3 */ @@ -465,58 +445,56 @@ static int doc_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, *retlen = len; ret = 0; - if (eccbuf) { - /* Read the ECC data from Spare Data Area, - see Reed-Solomon EDC/ECC 11.1 */ - dummy = ReadDOC(docptr, ReadPipeInit); + /* Read the ECC data from Spare Data Area, + see Reed-Solomon EDC/ECC 11.1 */ + dummy = ReadDOC(docptr, ReadPipeInit); #ifndef USE_MEMCPY - for (i = 0; i < 5; i++) { - /* N.B. you have to increase the source address in this way or the - ECC logic will not work properly */ - eccbuf[i] = ReadDOC(docptr, Mil_CDSN_IO + i); - } + for (i = 0; i < 5; i++) { + /* N.B. you have to increase the source address in this way or the + ECC logic will not work properly */ + eccbuf[i] = ReadDOC(docptr, Mil_CDSN_IO + i); + } #else - memcpy_fromio(eccbuf, docptr + DoC_Mil_CDSN_IO, 5); + memcpy_fromio(eccbuf, docptr + DoC_Mil_CDSN_IO, 5); #endif - eccbuf[5] = ReadDOC(docptr, LastDataRead); + eccbuf[5] = ReadDOC(docptr, LastDataRead); - /* Flush the pipeline */ - dummy = ReadDOC(docptr, ECCConf); - dummy = ReadDOC(docptr, ECCConf); + /* Flush the pipeline */ + dummy = ReadDOC(docptr, ECCConf); + dummy = ReadDOC(docptr, ECCConf); - /* Check the ECC Status */ - if (ReadDOC(docptr, ECCConf) & 0x80) { - int nb_errors; - /* There was an ECC error */ + /* Check the ECC Status */ + if (ReadDOC(docptr, ECCConf) & 0x80) { + int nb_errors; + /* There was an ECC error */ #ifdef ECC_DEBUG - printk("DiskOnChip ECC Error: Read at %lx\n", (long)from); + printk("DiskOnChip ECC Error: Read at %lx\n", (long)from); #endif - /* Read the ECC syndrom through the DiskOnChip ECC logic. - These syndrome will be all ZERO when there is no error */ - for (i = 0; i < 6; i++) { - syndrome[i] = ReadDOC(docptr, ECCSyndrome0 + i); - } - nb_errors = doc_decode_ecc(buf, syndrome); + /* Read the ECC syndrom through the DiskOnChip ECC logic. + These syndrome will be all ZERO when there is no error */ + for (i = 0; i < 6; i++) { + syndrome[i] = ReadDOC(docptr, ECCSyndrome0 + i); + } + nb_errors = doc_decode_ecc(buf, syndrome); #ifdef ECC_DEBUG - printk("ECC Errors corrected: %x\n", nb_errors); + printk("ECC Errors corrected: %x\n", nb_errors); #endif - if (nb_errors < 0) { - /* We return error, but have actually done the read. Not that - this can be told to user-space, via sys_read(), but at least - MTD-aware stuff can know about it by checking *retlen */ - ret = -EIO; - } + if (nb_errors < 0) { + /* We return error, but have actually done the read. Not that + this can be told to user-space, via sys_read(), but at least + MTD-aware stuff can know about it by checking *retlen */ + ret = -EIO; } + } #ifdef PSYCHO_DEBUG - printk("ECC DATA at %lx: %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n", - (long)from, eccbuf[0], eccbuf[1], eccbuf[2], eccbuf[3], - eccbuf[4], eccbuf[5]); + printk("ECC DATA at %lx: %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n", + (long)from, eccbuf[0], eccbuf[1], eccbuf[2], eccbuf[3], + eccbuf[4], eccbuf[5]); #endif - /* disable the ECC engine */ - WriteDOC(DOC_ECC_DIS, docptr , ECCConf); - } + /* disable the ECC engine */ + WriteDOC(DOC_ECC_DIS, docptr , ECCConf); return ret; } @@ -524,15 +502,8 @@ static int doc_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, static int doc_write (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf) { - char eccbuf[6]; - return doc_write_ecc(mtd, to, len, retlen, buf, eccbuf, NULL); -} - -static int doc_write_ecc (struct mtd_info *mtd, loff_t to, size_t len, - size_t *retlen, const u_char *buf, u_char *eccbuf, - struct nand_oobinfo *oobsel) -{ int i,ret = 0; + char eccbuf[6]; volatile char dummy; struct DiskOnChip *this = mtd->priv; void __iomem *docptr = this->virtadr; @@ -573,15 +544,9 @@ static int doc_write_ecc (struct mtd_info *mtd, loff_t to, size_t len, DoC_Address(docptr, 3, to, 0x00, 0x00); DoC_WaitReady(docptr); - if (eccbuf) { - /* init the ECC engine, see Reed-Solomon EDC/ECC 11.1 .*/ - WriteDOC (DOC_ECC_RESET, docptr, ECCConf); - WriteDOC (DOC_ECC_EN | DOC_ECC_RW, docptr, ECCConf); - } else { - /* disable the ECC engine */ - WriteDOC (DOC_ECC_RESET, docptr, ECCConf); - WriteDOC (DOC_ECC_DIS, docptr, ECCConf); - } + /* init the ECC engine, see Reed-Solomon EDC/ECC 11.1 .*/ + WriteDOC (DOC_ECC_RESET, docptr, ECCConf); + WriteDOC (DOC_ECC_EN | DOC_ECC_RW, docptr, ECCConf); /* Write the data via the internal pipeline through CDSN IO register, see Pipelined Write Operations 11.2 */ @@ -596,46 +561,44 @@ static int doc_write_ecc (struct mtd_info *mtd, loff_t to, size_t len, #endif WriteDOC(0x00, docptr, WritePipeTerm); - if (eccbuf) { - /* Write ECC data to flash, the ECC info is generated by the DiskOnChip ECC logic - see Reed-Solomon EDC/ECC 11.1 */ - WriteDOC(0, docptr, NOP); - WriteDOC(0, docptr, NOP); - WriteDOC(0, docptr, NOP); + /* Write ECC data to flash, the ECC info is generated by the DiskOnChip ECC logic + see Reed-Solomon EDC/ECC 11.1 */ + WriteDOC(0, docptr, NOP); + WriteDOC(0, docptr, NOP); + WriteDOC(0, docptr, NOP); - /* Read the ECC data through the DiskOnChip ECC logic */ - for (i = 0; i < 6; i++) { - eccbuf[i] = ReadDOC(docptr, ECCSyndrome0 + i); - } + /* Read the ECC data through the DiskOnChip ECC logic */ + for (i = 0; i < 6; i++) { + eccbuf[i] = ReadDOC(docptr, ECCSyndrome0 + i); + } - /* ignore the ECC engine */ - WriteDOC(DOC_ECC_DIS, docptr , ECCConf); + /* ignore the ECC engine */ + WriteDOC(DOC_ECC_DIS, docptr , ECCConf); #ifndef USE_MEMCPY - /* Write the ECC data to flash */ - for (i = 0; i < 6; i++) { - /* N.B. you have to increase the source address in this way or the - ECC logic will not work properly */ - WriteDOC(eccbuf[i], docptr, Mil_CDSN_IO + i); - } + /* Write the ECC data to flash */ + for (i = 0; i < 6; i++) { + /* N.B. you have to increase the source address in this way or the + ECC logic will not work properly */ + WriteDOC(eccbuf[i], docptr, Mil_CDSN_IO + i); + } #else - memcpy_toio(docptr + DoC_Mil_CDSN_IO, eccbuf, 6); + memcpy_toio(docptr + DoC_Mil_CDSN_IO, eccbuf, 6); #endif - /* write the block status BLOCK_USED (0x5555) at the end of ECC data - FIXME: this is only a hack for programming the IPL area for LinuxBIOS - and should be replace with proper codes in user space utilities */ - WriteDOC(0x55, docptr, Mil_CDSN_IO); - WriteDOC(0x55, docptr, Mil_CDSN_IO + 1); + /* write the block status BLOCK_USED (0x5555) at the end of ECC data + FIXME: this is only a hack for programming the IPL area for LinuxBIOS + and should be replace with proper codes in user space utilities */ + WriteDOC(0x55, docptr, Mil_CDSN_IO); + WriteDOC(0x55, docptr, Mil_CDSN_IO + 1); - WriteDOC(0x00, docptr, WritePipeTerm); + WriteDOC(0x00, docptr, WritePipeTerm); #ifdef PSYCHO_DEBUG - printk("OOB data at %lx is %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n", - (long) to, eccbuf[0], eccbuf[1], eccbuf[2], eccbuf[3], - eccbuf[4], eccbuf[5]); + printk("OOB data at %lx is %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n", + (long) to, eccbuf[0], eccbuf[1], eccbuf[2], eccbuf[3], + eccbuf[4], eccbuf[5]); #endif - } /* Commit the Page Program command and wait for ready see Software Requirement 11.4 item 1.*/ diff --git a/drivers/mtd/devices/doc2001plus.c b/drivers/mtd/devices/doc2001plus.c index 66cb1e50469..92dbb47f2ac 100644 --- a/drivers/mtd/devices/doc2001plus.c +++ b/drivers/mtd/devices/doc2001plus.c @@ -41,12 +41,6 @@ static int doc_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf); static int doc_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf); -static int doc_read_ecc(struct mtd_info *mtd, loff_t from, size_t len, - size_t *retlen, u_char *buf, u_char *eccbuf, - struct nand_oobinfo *oobsel); -static int doc_write_ecc(struct mtd_info *mtd, loff_t to, size_t len, - size_t *retlen, const u_char *buf, u_char *eccbuf, - struct nand_oobinfo *oobsel); static int doc_read_oob(struct mtd_info *mtd, loff_t ofs, struct mtd_oob_ops *ops); static int doc_write_oob(struct mtd_info *mtd, loff_t ofs, @@ -595,18 +589,10 @@ static int doc_dumpblk(struct mtd_info *mtd, loff_t from) static int doc_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf) { - /* Just a special case of doc_read_ecc */ - return doc_read_ecc(mtd, from, len, retlen, buf, NULL, NULL); -} - -static int doc_read_ecc(struct mtd_info *mtd, loff_t from, size_t len, - size_t *retlen, u_char *buf, u_char *eccbuf, - struct nand_oobinfo *oobsel) -{ int ret, i; volatile char dummy; loff_t fofs; - unsigned char syndrome[6]; + unsigned char syndrome[6], eccbuf[6]; struct DiskOnChip *this = mtd->priv; void __iomem * docptr = this->virtadr; struct Nand *mychip = &this->chips[from >> (this->chipshift)]; @@ -644,56 +630,51 @@ static int doc_read_ecc(struct mtd_info *mtd, loff_t from, size_t len, WriteDOC(0, docptr, Mplus_FlashControl); DoC_WaitReady(docptr); - if (eccbuf) { - /* init the ECC engine, see Reed-Solomon EDC/ECC 11.1 .*/ - WriteDOC(DOC_ECC_RESET, docptr, Mplus_ECCConf); - WriteDOC(DOC_ECC_EN, docptr, Mplus_ECCConf); - } else { - /* disable the ECC engine */ - WriteDOC(DOC_ECC_RESET, docptr, Mplus_ECCConf); - } + /* init the ECC engine, see Reed-Solomon EDC/ECC 11.1 .*/ + WriteDOC(DOC_ECC_RESET, docptr, Mplus_ECCConf); + WriteDOC(DOC_ECC_EN, docptr, Mplus_ECCConf); /* Let the caller know we completed it */ *retlen = len; - ret = 0; + ret = 0; ReadDOC(docptr, Mplus_ReadPipeInit); ReadDOC(docptr, Mplus_ReadPipeInit); - if (eccbuf) { - /* Read the data via the internal pipeline through CDSN IO - register, see Pipelined Read Operations 11.3 */ - MemReadDOC(docptr, buf, len); + /* Read the data via the internal pipeline through CDSN IO + register, see Pipelined Read Operations 11.3 */ + MemReadDOC(docptr, buf, len); - /* Read the ECC data following raw data */ - MemReadDOC(docptr, eccbuf, 4); - eccbuf[4] = ReadDOC(docptr, Mplus_LastDataRead); - eccbuf[5] = ReadDOC(docptr, Mplus_LastDataRead); + /* Read the ECC data following raw data */ + MemReadDOC(docptr, eccbuf, 4); + eccbuf[4] = ReadDOC(docptr, Mplus_LastDataRead); + eccbuf[5] = ReadDOC(docptr, Mplus_LastDataRead); - /* Flush the pipeline */ - dummy = ReadDOC(docptr, Mplus_ECCConf); - dummy = ReadDOC(docptr, Mplus_ECCConf); + /* Flush the pipeline */ + dummy = ReadDOC(docptr, Mplus_ECCConf); + dummy = ReadDOC(docptr, Mplus_ECCConf); - /* Check the ECC Status */ - if (ReadDOC(docptr, Mplus_ECCConf) & 0x80) { - int nb_errors; - /* There was an ECC error */ + /* Check the ECC Status */ + if (ReadDOC(docptr, Mplus_ECCConf) & 0x80) { + int nb_errors; + /* There was an ECC error */ #ifdef ECC_DEBUG - printk("DiskOnChip ECC Error: Read at %lx\n", (long)from); + printk("DiskOnChip ECC Error: Read at %lx\n", (long)from); #endif - /* Read the ECC syndrom through the DiskOnChip ECC logic. - These syndrome will be all ZERO when there is no error */ - for (i = 0; i < 6; i++) - syndrome[i] = ReadDOC(docptr, Mplus_ECCSyndrome0 + i); + /* Read the ECC syndrom through the DiskOnChip ECC logic. + These syndrome will be all ZERO when there is no error */ + for (i = 0; i < 6; i++) + syndrome[i] = ReadDOC(docptr, Mplus_ECCSyndrome0 + i); - nb_errors = doc_decode_ecc(buf, syndrome); + nb_errors = doc_decode_ecc(buf, syndrome); #ifdef ECC_DEBUG - printk("ECC Errors corrected: %x\n", nb_errors); + printk("ECC Errors corrected: %x\n", nb_errors); #endif - if (nb_errors < 0) { - /* We return error, but have actually done the read. Not that - this can be told to user-space, via sys_read(), but at least - MTD-aware stuff can know about it by checking *retlen */ + if (nb_errors < 0) { + /* We return error, but have actually done the + read. Not that this can be told to user-space, via + sys_read(), but at least MTD-aware stuff can know + about it by checking *retlen */ #ifdef ECC_DEBUG printk("%s(%d): Millennium Plus ECC error (from=0x%x:\n", __FILE__, __LINE__, (int)from); @@ -707,24 +688,16 @@ static int doc_read_ecc(struct mtd_info *mtd, loff_t from, size_t len, eccbuf[3], eccbuf[4], eccbuf[5]); #endif ret = -EIO; - } } + } #ifdef PSYCHO_DEBUG - printk("ECC DATA at %lx: %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n", - (long)from, eccbuf[0], eccbuf[1], eccbuf[2], eccbuf[3], - eccbuf[4], eccbuf[5]); + printk("ECC DATA at %lx: %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n", + (long)from, eccbuf[0], eccbuf[1], eccbuf[2], eccbuf[3], + eccbuf[4], eccbuf[5]); #endif - - /* disable the ECC engine */ - WriteDOC(DOC_ECC_DIS, docptr , Mplus_ECCConf); - } else { - /* Read the data via the internal pipeline through CDSN IO - register, see Pipelined Read Operations 11.3 */ - MemReadDOC(docptr, buf, len-2); - buf[len-2] = ReadDOC(docptr, Mplus_LastDataRead); - buf[len-1] = ReadDOC(docptr, Mplus_LastDataRead); - } + /* disable the ECC engine */ + WriteDOC(DOC_ECC_DIS, docptr , Mplus_ECCConf); /* Disable flash internally */ WriteDOC(0, docptr, Mplus_FlashSelect); @@ -735,17 +708,10 @@ static int doc_read_ecc(struct mtd_info *mtd, loff_t from, size_t len, static int doc_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf) { - char eccbuf[6]; - return doc_write_ecc(mtd, to, len, retlen, buf, eccbuf, NULL); -} - -static int doc_write_ecc(struct mtd_info *mtd, loff_t to, size_t len, - size_t *retlen, const u_char *buf, u_char *eccbuf, - struct nand_oobinfo *oobsel) -{ int i, before, ret = 0; loff_t fto; volatile char dummy; + char eccbuf[6]; struct DiskOnChip *this = mtd->priv; void __iomem * docptr = this->virtadr; struct Nand *mychip = &this->chips[to >> (this->chipshift)]; @@ -795,46 +761,42 @@ static int doc_write_ecc(struct mtd_info *mtd, loff_t to, size_t len, /* Disable the ECC engine */ WriteDOC(DOC_ECC_RESET, docptr, Mplus_ECCConf); - if (eccbuf) { - if (before) { - /* Write the block status BLOCK_USED (0x5555) */ - WriteDOC(0x55, docptr, Mil_CDSN_IO); - WriteDOC(0x55, docptr, Mil_CDSN_IO); - } - - /* init the ECC engine, see Reed-Solomon EDC/ECC 11.1 .*/ - WriteDOC(DOC_ECC_EN | DOC_ECC_RW, docptr, Mplus_ECCConf); + if (before) { + /* Write the block status BLOCK_USED (0x5555) */ + WriteDOC(0x55, docptr, Mil_CDSN_IO); + WriteDOC(0x55, docptr, Mil_CDSN_IO); } + /* init the ECC engine, see Reed-Solomon EDC/ECC 11.1 .*/ + WriteDOC(DOC_ECC_EN | DOC_ECC_RW, docptr, Mplus_ECCConf); + MemWriteDOC(docptr, (unsigned char *) buf, len); - if (eccbuf) { - /* Write ECC data to flash, the ECC info is generated by - the DiskOnChip ECC logic see Reed-Solomon EDC/ECC 11.1 */ - DoC_Delay(docptr, 3); + /* Write ECC data to flash, the ECC info is generated by + the DiskOnChip ECC logic see Reed-Solomon EDC/ECC 11.1 */ + DoC_Delay(docptr, 3); - /* Read the ECC data through the DiskOnChip ECC logic */ - for (i = 0; i < 6; i++) - eccbuf[i] = ReadDOC(docptr, Mplus_ECCSyndrome0 + i); + /* Read the ECC data through the DiskOnChip ECC logic */ + for (i = 0; i < 6; i++) + eccbuf[i] = ReadDOC(docptr, Mplus_ECCSyndrome0 + i); - /* disable the ECC engine */ - WriteDOC(DOC_ECC_DIS, docptr, Mplus_ECCConf); + /* disable the ECC engine */ + WriteDOC(DOC_ECC_DIS, docptr, Mplus_ECCConf); - /* Write the ECC data to flash */ - MemWriteDOC(docptr, eccbuf, 6); + /* Write the ECC data to flash */ + MemWriteDOC(docptr, eccbuf, 6); - if (!before) { - /* Write the block status BLOCK_USED (0x5555) */ - WriteDOC(0x55, docptr, Mil_CDSN_IO+6); - WriteDOC(0x55, docptr, Mil_CDSN_IO+7); - } + if (!before) { + /* Write the block status BLOCK_USED (0x5555) */ + WriteDOC(0x55, docptr, Mil_CDSN_IO+6); + WriteDOC(0x55, docptr, Mil_CDSN_IO+7); + } #ifdef PSYCHO_DEBUG - printk("OOB data at %lx is %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n", - (long) to, eccbuf[0], eccbuf[1], eccbuf[2], eccbuf[3], - eccbuf[4], eccbuf[5]); + printk("OOB data at %lx is %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n", + (long) to, eccbuf[0], eccbuf[1], eccbuf[2], eccbuf[3], + eccbuf[4], eccbuf[5]); #endif - } WriteDOC(0x00, docptr, Mplus_WritePipeTerm); WriteDOC(0x00, docptr, Mplus_WritePipeTerm); diff --git a/drivers/mtd/devices/docprobe.c b/drivers/mtd/devices/docprobe.c index 593bb033a3f..78872c3f376 100644 --- a/drivers/mtd/devices/docprobe.c +++ b/drivers/mtd/devices/docprobe.c @@ -40,7 +40,6 @@ */ #define DOC_SINGLE_DRIVER -#include <linux/config.h> #include <linux/kernel.h> #include <linux/module.h> #include <asm/errno.h> diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index a8466141e91..ef4a731ca5c 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -406,13 +406,13 @@ struct flash_info { static struct flash_info __devinitdata m25p_data [] = { /* REVISIT: fill in JEDEC ids, for parts that have them */ - { "m25p05", 0x05, 0x0000, 32 * 1024, 2 }, - { "m25p10", 0x10, 0x0000, 32 * 1024, 4 }, - { "m25p20", 0x11, 0x0000, 64 * 1024, 4 }, - { "m25p40", 0x12, 0x0000, 64 * 1024, 8 }, + { "m25p05", 0x05, 0x2010, 32 * 1024, 2 }, + { "m25p10", 0x10, 0x2011, 32 * 1024, 4 }, + { "m25p20", 0x11, 0x2012, 64 * 1024, 4 }, + { "m25p40", 0x12, 0x2013, 64 * 1024, 8 }, { "m25p80", 0x13, 0x0000, 64 * 1024, 16 }, - { "m25p16", 0x14, 0x0000, 64 * 1024, 32 }, - { "m25p32", 0x15, 0x0000, 64 * 1024, 64 }, + { "m25p16", 0x14, 0x2015, 64 * 1024, 32 }, + { "m25p32", 0x15, 0x2016, 64 * 1024, 64 }, { "m25p64", 0x16, 0x2017, 64 * 1024, 128 }, }; diff --git a/drivers/mtd/devices/ms02-nv.c b/drivers/mtd/devices/ms02-nv.c index 4ab7670770e..08dfb899b27 100644 --- a/drivers/mtd/devices/ms02-nv.c +++ b/drivers/mtd/devices/ms02-nv.c @@ -225,6 +225,7 @@ static int __init ms02nv_init_one(ulong addr) mtd->owner = THIS_MODULE; mtd->read = ms02nv_read; mtd->write = ms02nv_write; + mtd->writesize = 1; ret = -EIO; if (add_mtd_device(mtd)) { diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index a19480d0788..5db71604592 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -9,7 +9,6 @@ * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ -#include <linux/config.h> #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> @@ -478,6 +477,7 @@ add_dataflash(struct spi_device *spi, char *name, device->name = (pdata && pdata->name) ? pdata->name : priv->name; device->size = nr_pages * pagesize; device->erasesize = pagesize; + device->writesize = pagesize; device->owner = THIS_MODULE; device->type = MTD_DATAFLASH; device->flags = MTD_CAP_NORFLASH; diff --git a/drivers/mtd/devices/mtdram.c b/drivers/mtd/devices/mtdram.c index b4438eacfd8..e427c82d5f4 100644 --- a/drivers/mtd/devices/mtdram.c +++ b/drivers/mtd/devices/mtdram.c @@ -10,7 +10,6 @@ * */ -#include <linux/config.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/ioport.h> diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c index e09e416667d..6c7337f9ebb 100644 --- a/drivers/mtd/devices/phram.c +++ b/drivers/mtd/devices/phram.c @@ -151,6 +151,7 @@ static int register_device(char *name, unsigned long start, unsigned long len) new->mtd.owner = THIS_MODULE; new->mtd.type = MTD_RAM; new->mtd.erasesize = PAGE_SIZE; + new->mtd.writesize = 1; ret = -EAGAIN; if (add_mtd_device(&new->mtd)) { diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c index 666cce1bf60..354e1657cc2 100644 --- a/drivers/mtd/devices/pmc551.c +++ b/drivers/mtd/devices/pmc551.c @@ -4,85 +4,84 @@ * PMC551 PCI Mezzanine Ram Device * * Author: - * Mark Ferrell <mferrell@mvista.com> - * Copyright 1999,2000 Nortel Networks + * Mark Ferrell <mferrell@mvista.com> + * Copyright 1999,2000 Nortel Networks * * License: - * As part of this driver was derived from the slram.c driver it - * falls under the same license, which is GNU General Public - * License v2 + * As part of this driver was derived from the slram.c driver it + * falls under the same license, which is GNU General Public + * License v2 * * Description: - * This driver is intended to support the PMC551 PCI Ram device - * from Ramix Inc. The PMC551 is a PMC Mezzanine module for - * cPCI embedded systems. The device contains a single SROM - * that initially programs the V370PDC chipset onboard the - * device, and various banks of DRAM/SDRAM onboard. This driver - * implements this PCI Ram device as an MTD (Memory Technology - * Device) so that it can be used to hold a file system, or for - * added swap space in embedded systems. Since the memory on - * this board isn't as fast as main memory we do not try to hook - * it into main memory as that would simply reduce performance - * on the system. Using it as a block device allows us to use - * it as high speed swap or for a high speed disk device of some - * sort. Which becomes very useful on diskless systems in the - * embedded market I might add. + * This driver is intended to support the PMC551 PCI Ram device + * from Ramix Inc. The PMC551 is a PMC Mezzanine module for + * cPCI embedded systems. The device contains a single SROM + * that initially programs the V370PDC chipset onboard the + * device, and various banks of DRAM/SDRAM onboard. This driver + * implements this PCI Ram device as an MTD (Memory Technology + * Device) so that it can be used to hold a file system, or for + * added swap space in embedded systems. Since the memory on + * this board isn't as fast as main memory we do not try to hook + * it into main memory as that would simply reduce performance + * on the system. Using it as a block device allows us to use + * it as high speed swap or for a high speed disk device of some + * sort. Which becomes very useful on diskless systems in the + * embedded market I might add. * * Notes: - * Due to what I assume is more buggy SROM, the 64M PMC551 I - * have available claims that all 4 of it's DRAM banks have 64M - * of ram configured (making a grand total of 256M onboard). - * This is slightly annoying since the BAR0 size reflects the - * aperture size, not the dram size, and the V370PDC supplies no - * other method for memory size discovery. This problem is - * mostly only relevant when compiled as a module, as the - * unloading of the module with an aperture size smaller then - * the ram will cause the driver to detect the onboard memory - * size to be equal to the aperture size when the module is - * reloaded. Soooo, to help, the module supports an msize - * option to allow the specification of the onboard memory, and - * an asize option, to allow the specification of the aperture - * size. The aperture must be equal to or less then the memory - * size, the driver will correct this if you screw it up. This - * problem is not relevant for compiled in drivers as compiled - * in drivers only init once. + * Due to what I assume is more buggy SROM, the 64M PMC551 I + * have available claims that all 4 of it's DRAM banks have 64M + * of ram configured (making a grand total of 256M onboard). + * This is slightly annoying since the BAR0 size reflects the + * aperture size, not the dram size, and the V370PDC supplies no + * other method for memory size discovery. This problem is + * mostly only relevant when compiled as a module, as the + * unloading of the module with an aperture size smaller then + * the ram will cause the driver to detect the onboard memory + * size to be equal to the aperture size when the module is + * reloaded. Soooo, to help, the module supports an msize + * option to allow the specification of the onboard memory, and + * an asize option, to allow the specification of the aperture + * size. The aperture must be equal to or less then the memory + * size, the driver will correct this if you screw it up. This + * problem is not relevant for compiled in drivers as compiled + * in drivers only init once. * * Credits: - * Saeed Karamooz <saeed@ramix.com> of Ramix INC. for the - * initial example code of how to initialize this device and for - * help with questions I had concerning operation of the device. + * Saeed Karamooz <saeed@ramix.com> of Ramix INC. for the + * initial example code of how to initialize this device and for + * help with questions I had concerning operation of the device. * - * Most of the MTD code for this driver was originally written - * for the slram.o module in the MTD drivers package which - * allows the mapping of system memory into an MTD device. - * Since the PMC551 memory module is accessed in the same - * fashion as system memory, the slram.c code became a very nice - * fit to the needs of this driver. All we added was PCI - * detection/initialization to the driver and automatically figure - * out the size via the PCI detection.o, later changes by Corey - * Minyard set up the card to utilize a 1M sliding apature. + * Most of the MTD code for this driver was originally written + * for the slram.o module in the MTD drivers package which + * allows the mapping of system memory into an MTD device. + * Since the PMC551 memory module is accessed in the same + * fashion as system memory, the slram.c code became a very nice + * fit to the needs of this driver. All we added was PCI + * detection/initialization to the driver and automatically figure + * out the size via the PCI detection.o, later changes by Corey + * Minyard set up the card to utilize a 1M sliding apature. * - * Corey Minyard <minyard@nortelnetworks.com> - * * Modified driver to utilize a sliding aperture instead of - * mapping all memory into kernel space which turned out to - * be very wasteful. - * * Located a bug in the SROM's initialization sequence that - * made the memory unusable, added a fix to code to touch up - * the DRAM some. + * Corey Minyard <minyard@nortelnetworks.com> + * * Modified driver to utilize a sliding aperture instead of + * mapping all memory into kernel space which turned out to + * be very wasteful. + * * Located a bug in the SROM's initialization sequence that + * made the memory unusable, added a fix to code to touch up + * the DRAM some. * * Bugs/FIXME's: - * * MUST fix the init function to not spin on a register - * waiting for it to set .. this does not safely handle busted - * devices that never reset the register correctly which will - * cause the system to hang w/ a reboot being the only chance at - * recover. [sort of fixed, could be better] - * * Add I2C handling of the SROM so we can read the SROM's information - * about the aperture size. This should always accurately reflect the - * onboard memory size. - * * Comb the init routine. It's still a bit cludgy on a few things. + * * MUST fix the init function to not spin on a register + * waiting for it to set .. this does not safely handle busted + * devices that never reset the register correctly which will + * cause the system to hang w/ a reboot being the only chance at + * recover. [sort of fixed, could be better] + * * Add I2C handling of the SROM so we can read the SROM's information + * about the aperture size. This should always accurately reflect the + * onboard memory size. + * * Comb the init routine. It's still a bit cludgy on a few things. */ -#include <linux/config.h> #include <linux/kernel.h> #include <linux/module.h> #include <asm/uaccess.h> @@ -100,84 +99,83 @@ #include <asm/system.h> #include <linux/pci.h> -#ifndef CONFIG_PCI -#error Enable PCI in your kernel config -#endif - #include <linux/mtd/mtd.h> #include <linux/mtd/pmc551.h> #include <linux/mtd/compatmac.h> static struct mtd_info *pmc551list; -static int pmc551_erase (struct mtd_info *mtd, struct erase_info *instr) +static int pmc551_erase(struct mtd_info *mtd, struct erase_info *instr) { - struct mypriv *priv = mtd->priv; - u32 soff_hi, soff_lo; /* start address offset hi/lo */ - u32 eoff_hi, eoff_lo; /* end address offset hi/lo */ - unsigned long end; + struct mypriv *priv = mtd->priv; + u32 soff_hi, soff_lo; /* start address offset hi/lo */ + u32 eoff_hi, eoff_lo; /* end address offset hi/lo */ + unsigned long end; u_char *ptr; size_t retlen; #ifdef CONFIG_MTD_PMC551_DEBUG - printk(KERN_DEBUG "pmc551_erase(pos:%ld, len:%ld)\n", (long)instr->addr, (long)instr->len); + printk(KERN_DEBUG "pmc551_erase(pos:%ld, len:%ld)\n", (long)instr->addr, + (long)instr->len); #endif - end = instr->addr + instr->len - 1; + end = instr->addr + instr->len - 1; - /* Is it past the end? */ - if ( end > mtd->size ) { + /* Is it past the end? */ + if (end > mtd->size) { #ifdef CONFIG_MTD_PMC551_DEBUG - printk(KERN_DEBUG "pmc551_erase() out of bounds (%ld > %ld)\n", (long)end, (long)mtd->size); + printk(KERN_DEBUG "pmc551_erase() out of bounds (%ld > %ld)\n", + (long)end, (long)mtd->size); #endif - return -EINVAL; - } - - eoff_hi = end & ~(priv->asize - 1); - soff_hi = instr->addr & ~(priv->asize - 1); - eoff_lo = end & (priv->asize - 1); - soff_lo = instr->addr & (priv->asize - 1); - - pmc551_point (mtd, instr->addr, instr->len, &retlen, &ptr); - - if ( soff_hi == eoff_hi || mtd->size == priv->asize) { - /* The whole thing fits within one access, so just one shot - will do it. */ - memset(ptr, 0xff, instr->len); - } else { - /* We have to do multiple writes to get all the data - written. */ - while (soff_hi != eoff_hi) { + return -EINVAL; + } + + eoff_hi = end & ~(priv->asize - 1); + soff_hi = instr->addr & ~(priv->asize - 1); + eoff_lo = end & (priv->asize - 1); + soff_lo = instr->addr & (priv->asize - 1); + + pmc551_point(mtd, instr->addr, instr->len, &retlen, &ptr); + + if (soff_hi == eoff_hi || mtd->size == priv->asize) { + /* The whole thing fits within one access, so just one shot + will do it. */ + memset(ptr, 0xff, instr->len); + } else { + /* We have to do multiple writes to get all the data + written. */ + while (soff_hi != eoff_hi) { #ifdef CONFIG_MTD_PMC551_DEBUG - printk( KERN_DEBUG "pmc551_erase() soff_hi: %ld, eoff_hi: %ld\n", (long)soff_hi, (long)eoff_hi); + printk(KERN_DEBUG "pmc551_erase() soff_hi: %ld, " + "eoff_hi: %ld\n", (long)soff_hi, (long)eoff_hi); #endif - memset(ptr, 0xff, priv->asize); - if (soff_hi + priv->asize >= mtd->size) { - goto out; - } - soff_hi += priv->asize; - pmc551_point (mtd,(priv->base_map0|soff_hi), - priv->asize, &retlen, &ptr); - } - memset (ptr, 0xff, eoff_lo); - } - -out: + memset(ptr, 0xff, priv->asize); + if (soff_hi + priv->asize >= mtd->size) { + goto out; + } + soff_hi += priv->asize; + pmc551_point(mtd, (priv->base_map0 | soff_hi), + priv->asize, &retlen, &ptr); + } + memset(ptr, 0xff, eoff_lo); + } + + out: instr->state = MTD_ERASE_DONE; #ifdef CONFIG_MTD_PMC551_DEBUG printk(KERN_DEBUG "pmc551_erase() done\n"); #endif - mtd_erase_callback(instr); - return 0; + mtd_erase_callback(instr); + return 0; } - -static int pmc551_point (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char **mtdbuf) +static int pmc551_point(struct mtd_info *mtd, loff_t from, size_t len, + size_t * retlen, u_char ** mtdbuf) { - struct mypriv *priv = mtd->priv; - u32 soff_hi; - u32 soff_lo; + struct mypriv *priv = mtd->priv; + u32 soff_hi; + u32 soff_lo; #ifdef CONFIG_MTD_PMC551_DEBUG printk(KERN_DEBUG "pmc551_point(%ld, %ld)\n", (long)from, (long)len); @@ -185,18 +183,19 @@ static int pmc551_point (struct mtd_info *mtd, loff_t from, size_t len, size_t * if (from + len > mtd->size) { #ifdef CONFIG_MTD_PMC551_DEBUG - printk(KERN_DEBUG "pmc551_point() out of bounds (%ld > %ld)\n", (long)from+len, (long)mtd->size); + printk(KERN_DEBUG "pmc551_point() out of bounds (%ld > %ld)\n", + (long)from + len, (long)mtd->size); #endif return -EINVAL; } - soff_hi = from & ~(priv->asize - 1); - soff_lo = from & (priv->asize - 1); + soff_hi = from & ~(priv->asize - 1); + soff_lo = from & (priv->asize - 1); /* Cheap hack optimization */ - if( priv->curr_map0 != from ) { - pci_write_config_dword ( priv->dev, PMC551_PCI_MEM_MAP0, - (priv->base_map0 | soff_hi) ); + if (priv->curr_map0 != from) { + pci_write_config_dword(priv->dev, PMC551_PCI_MEM_MAP0, + (priv->base_map0 | soff_hi)); priv->curr_map0 = soff_hi; } @@ -205,137 +204,144 @@ static int pmc551_point (struct mtd_info *mtd, loff_t from, size_t len, size_t * return 0; } - -static void pmc551_unpoint (struct mtd_info *mtd, u_char *addr, loff_t from, size_t len) +static void pmc551_unpoint(struct mtd_info *mtd, u_char * addr, loff_t from, + size_t len) { #ifdef CONFIG_MTD_PMC551_DEBUG printk(KERN_DEBUG "pmc551_unpoint()\n"); #endif } - -static int pmc551_read (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf) +static int pmc551_read(struct mtd_info *mtd, loff_t from, size_t len, + size_t * retlen, u_char * buf) { - struct mypriv *priv = mtd->priv; - u32 soff_hi, soff_lo; /* start address offset hi/lo */ - u32 eoff_hi, eoff_lo; /* end address offset hi/lo */ - unsigned long end; + struct mypriv *priv = mtd->priv; + u32 soff_hi, soff_lo; /* start address offset hi/lo */ + u32 eoff_hi, eoff_lo; /* end address offset hi/lo */ + unsigned long end; u_char *ptr; - u_char *copyto = buf; + u_char *copyto = buf; #ifdef CONFIG_MTD_PMC551_DEBUG - printk(KERN_DEBUG "pmc551_read(pos:%ld, len:%ld) asize: %ld\n", (long)from, (long)len, (long)priv->asize); + printk(KERN_DEBUG "pmc551_read(pos:%ld, len:%ld) asize: %ld\n", + (long)from, (long)len, (long)priv->asize); #endif - end = from + len - 1; + end = from + len - 1; - /* Is it past the end? */ - if (end > mtd->size) { + /* Is it past the end? */ + if (end > mtd->size) { #ifdef CONFIG_MTD_PMC551_DEBUG - printk(KERN_DEBUG "pmc551_read() out of bounds (%ld > %ld)\n", (long) end, (long)mtd->size); + printk(KERN_DEBUG "pmc551_read() out of bounds (%ld > %ld)\n", + (long)end, (long)mtd->size); #endif - return -EINVAL; - } - - soff_hi = from & ~(priv->asize - 1); - eoff_hi = end & ~(priv->asize - 1); - soff_lo = from & (priv->asize - 1); - eoff_lo = end & (priv->asize - 1); - - pmc551_point (mtd, from, len, retlen, &ptr); - - if (soff_hi == eoff_hi) { - /* The whole thing fits within one access, so just one shot - will do it. */ - memcpy(copyto, ptr, len); - copyto += len; - } else { - /* We have to do multiple writes to get all the data - written. */ - while (soff_hi != eoff_hi) { + return -EINVAL; + } + + soff_hi = from & ~(priv->asize - 1); + eoff_hi = end & ~(priv->asize - 1); + soff_lo = from & (priv->asize - 1); + eoff_lo = end & (priv->asize - 1); + + pmc551_point(mtd, from, len, retlen, &ptr); + + if (soff_hi == eoff_hi) { + /* The whole thing fits within one access, so just one shot + will do it. */ + memcpy(copyto, ptr, len); + copyto += len; + } else { + /* We have to do multiple writes to get all the data + written. */ + while (soff_hi != eoff_hi) { #ifdef CONFIG_MTD_PMC551_DEBUG - printk( KERN_DEBUG "pmc551_read() soff_hi: %ld, eoff_hi: %ld\n", (long)soff_hi, (long)eoff_hi); + printk(KERN_DEBUG "pmc551_read() soff_hi: %ld, " + "eoff_hi: %ld\n", (long)soff_hi, (long)eoff_hi); #endif - memcpy(copyto, ptr, priv->asize); - copyto += priv->asize; - if (soff_hi + priv->asize >= mtd->size) { - goto out; - } - soff_hi += priv->asize; - pmc551_point (mtd, soff_hi, priv->asize, retlen, &ptr); - } - memcpy(copyto, ptr, eoff_lo); - copyto += eoff_lo; - } - -out: + memcpy(copyto, ptr, priv->asize); + copyto += priv->asize; + if (soff_hi + priv->asize >= mtd->size) { + goto out; + } + soff_hi += priv->asize; + pmc551_point(mtd, soff_hi, priv->asize, retlen, &ptr); + } + memcpy(copyto, ptr, eoff_lo); + copyto += eoff_lo; + } + + out: #ifdef CONFIG_MTD_PMC551_DEBUG printk(KERN_DEBUG "pmc551_read() done\n"); #endif - *retlen = copyto - buf; - return 0; + *retlen = copyto - buf; + return 0; } -static int pmc551_write (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf) +static int pmc551_write(struct mtd_info *mtd, loff_t to, size_t len, + size_t * retlen, const u_char * buf) { - struct mypriv *priv = mtd->priv; - u32 soff_hi, soff_lo; /* start address offset hi/lo */ - u32 eoff_hi, eoff_lo; /* end address offset hi/lo */ - unsigned long end; + struct mypriv *priv = mtd->priv; + u32 soff_hi, soff_lo; /* start address offset hi/lo */ + u32 eoff_hi, eoff_lo; /* end address offset hi/lo */ + unsigned long end; u_char *ptr; - const u_char *copyfrom = buf; - + const u_char *copyfrom = buf; #ifdef CONFIG_MTD_PMC551_DEBUG - printk(KERN_DEBUG "pmc551_write(pos:%ld, len:%ld) asize:%ld\n", (long)to, (long)len, (long)priv->asize); + printk(KERN_DEBUG "pmc551_write(pos:%ld, len:%ld) asize:%ld\n", + (long)to, (long)len, (long)priv->asize); #endif - end = to + len - 1; - /* Is it past the end? or did the u32 wrap? */ - if (end > mtd->size ) { + end = to + len - 1; + /* Is it past the end? or did the u32 wrap? */ + if (end > mtd->size) { #ifdef CONFIG_MTD_PMC551_DEBUG - printk(KERN_DEBUG "pmc551_write() out of bounds (end: %ld, size: %ld, to: %ld)\n", (long) end, (long)mtd->size, (long)to); + printk(KERN_DEBUG "pmc551_write() out of bounds (end: %ld, " + "size: %ld, to: %ld)\n", (long)end, (long)mtd->size, + (long)to); #endif - return -EINVAL; - } - - soff_hi = to & ~(priv->asize - 1); - eoff_hi = end & ~(priv->asize - 1); - soff_lo = to & (priv->asize - 1); - eoff_lo = end & (priv->asize - 1); - - pmc551_point (mtd, to, len, retlen, &ptr); - - if (soff_hi == eoff_hi) { - /* The whole thing fits within one access, so just one shot - will do it. */ - memcpy(ptr, copyfrom, len); - copyfrom += len; - } else { - /* We have to do multiple writes to get all the data - written. */ - while (soff_hi != eoff_hi) { + return -EINVAL; + } + + soff_hi = to & ~(priv->asize - 1); + eoff_hi = end & ~(priv->asize - 1); + soff_lo = to & (priv->asize - 1); + eoff_lo = end & (priv->asize - 1); + + pmc551_point(mtd, to, len, retlen, &ptr); + + if (soff_hi == eoff_hi) { + /* The whole thing fits within one access, so just one shot + will do it. */ + memcpy(ptr, copyfrom, len); + copyfrom += len; + } else { + /* We have to do multiple writes to get all the data + written. */ + while (soff_hi != eoff_hi) { #ifdef CONFIG_MTD_PMC551_DEBUG - printk( KERN_DEBUG "pmc551_write() soff_hi: %ld, eoff_hi: %ld\n", (long)soff_hi, (long)eoff_hi); + printk(KERN_DEBUG "pmc551_write() soff_hi: %ld, " + "eoff_hi: %ld\n", (long)soff_hi, (long)eoff_hi); #endif - memcpy(ptr, copyfrom, priv->asize); - copyfrom += priv->asize; - if (soff_hi >= mtd->size) { - goto out; - } - soff_hi += priv->asize; - pmc551_point (mtd, soff_hi, priv->asize, retlen, &ptr); - } - memcpy(ptr, copyfrom, eoff_lo); - copyfrom += eoff_lo; - } - -out: + memcpy(ptr, copyfrom, priv->asize); + copyfrom += priv->asize; + if (soff_hi >= mtd->size) { + goto out; + } + soff_hi += priv->asize; + pmc551_point(mtd, soff_hi, priv->asize, retlen, &ptr); + } + memcpy(ptr, copyfrom, eoff_lo); + copyfrom += eoff_lo; + } + + out: #ifdef CONFIG_MTD_PMC551_DEBUG printk(KERN_DEBUG "pmc551_write() done\n"); #endif - *retlen = copyfrom - buf; - return 0; + *retlen = copyfrom - buf; + return 0; } /* @@ -350,58 +356,58 @@ out: * mechanism * returns the size of the memory region found. */ -static u32 fixup_pmc551 (struct pci_dev *dev) +static u32 fixup_pmc551(struct pci_dev *dev) { #ifdef CONFIG_MTD_PMC551_BUGFIX - u32 dram_data; + u32 dram_data; #endif - u32 size, dcmd, cfg, dtmp; - u16 cmd, tmp, i; + u32 size, dcmd, cfg, dtmp; + u16 cmd, tmp, i; u8 bcmd, counter; - /* Sanity Check */ - if(!dev) { - return -ENODEV; - } + /* Sanity Check */ + if (!dev) { + return -ENODEV; + } /* * Attempt to reset the card * FIXME: Stop Spinning registers */ - counter=0; + counter = 0; /* unlock registers */ - pci_write_config_byte(dev, PMC551_SYS_CTRL_REG, 0xA5 ); + pci_write_config_byte(dev, PMC551_SYS_CTRL_REG, 0xA5); /* read in old data */ - pci_read_config_byte(dev, PMC551_SYS_CTRL_REG, &bcmd ); + pci_read_config_byte(dev, PMC551_SYS_CTRL_REG, &bcmd); /* bang the reset line up and down for a few */ - for(i=0;i<10;i++) { - counter=0; + for (i = 0; i < 10; i++) { + counter = 0; bcmd &= ~0x80; - while(counter++ < 100) { + while (counter++ < 100) { pci_write_config_byte(dev, PMC551_SYS_CTRL_REG, bcmd); } - counter=0; + counter = 0; bcmd |= 0x80; - while(counter++ < 100) { + while (counter++ < 100) { pci_write_config_byte(dev, PMC551_SYS_CTRL_REG, bcmd); } } - bcmd |= (0x40|0x20); + bcmd |= (0x40 | 0x20); pci_write_config_byte(dev, PMC551_SYS_CTRL_REG, bcmd); - /* + /* * Take care and turn off the memory on the device while we * tweak the configurations */ - pci_read_config_word(dev, PCI_COMMAND, &cmd); - tmp = cmd & ~(PCI_COMMAND_IO|PCI_COMMAND_MEMORY); - pci_write_config_word(dev, PCI_COMMAND, tmp); + pci_read_config_word(dev, PCI_COMMAND, &cmd); + tmp = cmd & ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY); + pci_write_config_word(dev, PCI_COMMAND, tmp); /* * Disable existing aperture before probing memory size */ pci_read_config_dword(dev, PMC551_PCI_MEM_MAP0, &dcmd); - dtmp=(dcmd|PMC551_PCI_MEM_MAP_ENABLE|PMC551_PCI_MEM_MAP_REG_EN); + dtmp = (dcmd | PMC551_PCI_MEM_MAP_ENABLE | PMC551_PCI_MEM_MAP_REG_EN); pci_write_config_dword(dev, PMC551_PCI_MEM_MAP0, dtmp); /* * Grab old BAR0 config so that we can figure out memory size @@ -412,220 +418,230 @@ static u32 fixup_pmc551 (struct pci_dev *dev) * then write all 1's to the memory space, read back the result into * "size", and then write back all the old config. */ - pci_read_config_dword( dev, PCI_BASE_ADDRESS_0, &cfg ); + pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &cfg); #ifndef CONFIG_MTD_PMC551_BUGFIX - pci_write_config_dword( dev, PCI_BASE_ADDRESS_0, ~0 ); - pci_read_config_dword( dev, PCI_BASE_ADDRESS_0, &size ); - size = (size&PCI_BASE_ADDRESS_MEM_MASK); - size &= ~(size-1); - pci_write_config_dword( dev, PCI_BASE_ADDRESS_0, cfg ); + pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, ~0); + pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &size); + size = (size & PCI_BASE_ADDRESS_MEM_MASK); + size &= ~(size - 1); + pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, cfg); #else - /* - * Get the size of the memory by reading all the DRAM size values - * and adding them up. - * - * KLUDGE ALERT: the boards we are using have invalid column and - * row mux values. We fix them here, but this will break other - * memory configurations. - */ - pci_read_config_dword(dev, PMC551_DRAM_BLK0, &dram_data); - size = PMC551_DRAM_BLK_GET_SIZE(dram_data); - dram_data = PMC551_DRAM_BLK_SET_COL_MUX(dram_data, 0x5); - dram_data = PMC551_DRAM_BLK_SET_ROW_MUX(dram_data, 0x9); - pci_write_config_dword(dev, PMC551_DRAM_BLK0, dram_data); - - pci_read_config_dword(dev, PMC551_DRAM_BLK1, &dram_data); - size += PMC551_DRAM_BLK_GET_SIZE(dram_data); - dram_data = PMC551_DRAM_BLK_SET_COL_MUX(dram_data, 0x5); - dram_data = PMC551_DRAM_BLK_SET_ROW_MUX(dram_data, 0x9); - pci_write_config_dword(dev, PMC551_DRAM_BLK1, dram_data); - - pci_read_config_dword(dev, PMC551_DRAM_BLK2, &dram_data); - size += PMC551_DRAM_BLK_GET_SIZE(dram_data); - dram_data = PMC551_DRAM_BLK_SET_COL_MUX(dram_data, 0x5); - dram_data = PMC551_DRAM_BLK_SET_ROW_MUX(dram_data, 0x9); - pci_write_config_dword(dev, PMC551_DRAM_BLK2, dram_data); - - pci_read_config_dword(dev, PMC551_DRAM_BLK3, &dram_data); - size += PMC551_DRAM_BLK_GET_SIZE(dram_data); - dram_data = PMC551_DRAM_BLK_SET_COL_MUX(dram_data, 0x5); - dram_data = PMC551_DRAM_BLK_SET_ROW_MUX(dram_data, 0x9); - pci_write_config_dword(dev, PMC551_DRAM_BLK3, dram_data); - - /* - * Oops .. something went wrong - */ - if( (size &= PCI_BASE_ADDRESS_MEM_MASK) == 0) { - return -ENODEV; - } -#endif /* CONFIG_MTD_PMC551_BUGFIX */ - - if ((cfg&PCI_BASE_ADDRESS_SPACE) != PCI_BASE_ADDRESS_SPACE_MEMORY) { - return -ENODEV; + /* + * Get the size of the memory by reading all the DRAM size values + * and adding them up. + * + * KLUDGE ALERT: the boards we are using have invalid column and + * row mux values. We fix them here, but this will break other + * memory configurations. + */ + pci_read_config_dword(dev, PMC551_DRAM_BLK0, &dram_data); + size = PMC551_DRAM_BLK_GET_SIZE(dram_data); + dram_data = PMC551_DRAM_BLK_SET_COL_MUX(dram_data, 0x5); + dram_data = PMC551_DRAM_BLK_SET_ROW_MUX(dram_data, 0x9); + pci_write_config_dword(dev, PMC551_DRAM_BLK0, dram_data); + + pci_read_config_dword(dev, PMC551_DRAM_BLK1, &dram_data); + size += PMC551_DRAM_BLK_GET_SIZE(dram_data); + dram_data = PMC551_DRAM_BLK_SET_COL_MUX(dram_data, 0x5); + dram_data = PMC551_DRAM_BLK_SET_ROW_MUX(dram_data, 0x9); + pci_write_config_dword(dev, PMC551_DRAM_BLK1, dram_data); + + pci_read_config_dword(dev, PMC551_DRAM_BLK2, &dram_data); + size += PMC551_DRAM_BLK_GET_SIZE(dram_data); + dram_data = PMC551_DRAM_BLK_SET_COL_MUX(dram_data, 0x5); + dram_data = PMC551_DRAM_BLK_SET_ROW_MUX(dram_data, 0x9); + pci_write_config_dword(dev, PMC551_DRAM_BLK2, dram_data); + + pci_read_config_dword(dev, PMC551_DRAM_BLK3, &dram_data); + size += PMC551_DRAM_BLK_GET_SIZE(dram_data); + dram_data = PMC551_DRAM_BLK_SET_COL_MUX(dram_data, 0x5); + dram_data = PMC551_DRAM_BLK_SET_ROW_MUX(dram_data, 0x9); + pci_write_config_dword(dev, PMC551_DRAM_BLK3, dram_data); + + /* + * Oops .. something went wrong + */ + if ((size &= PCI_BASE_ADDRESS_MEM_MASK) == 0) { + return -ENODEV; + } +#endif /* CONFIG_MTD_PMC551_BUGFIX */ + + if ((cfg & PCI_BASE_ADDRESS_SPACE) != PCI_BASE_ADDRESS_SPACE_MEMORY) { + return -ENODEV; } - /* - * Precharge Dram - */ - pci_write_config_word( dev, PMC551_SDRAM_MA, 0x0400 ); - pci_write_config_word( dev, PMC551_SDRAM_CMD, 0x00bf ); - - /* - * Wait until command has gone through - * FIXME: register spinning issue - */ - do { pci_read_config_word( dev, PMC551_SDRAM_CMD, &cmd ); - if(counter++ > 100)break; - } while ( (PCI_COMMAND_IO) & cmd ); - - /* + /* + * Precharge Dram + */ + pci_write_config_word(dev, PMC551_SDRAM_MA, 0x0400); + pci_write_config_word(dev, PMC551_SDRAM_CMD, 0x00bf); + + /* + * Wait until command has gone through + * FIXME: register spinning issue + */ + do { + pci_read_config_word(dev, PMC551_SDRAM_CMD, &cmd); + if (counter++ > 100) + break; + } while ((PCI_COMMAND_IO) & cmd); + + /* * Turn on auto refresh * The loop is taken directly from Ramix's example code. I assume that * this must be held high for some duration of time, but I can find no * documentation refrencing the reasons why. - */ - for ( i = 1; i<=8 ; i++) { - pci_write_config_word (dev, PMC551_SDRAM_CMD, 0x0df); - - /* - * Make certain command has gone through - * FIXME: register spinning issue - */ - counter=0; - do { pci_read_config_word(dev, PMC551_SDRAM_CMD, &cmd); - if(counter++ > 100)break; - } while ( (PCI_COMMAND_IO) & cmd ); - } - - pci_write_config_word ( dev, PMC551_SDRAM_MA, 0x0020); - pci_write_config_word ( dev, PMC551_SDRAM_CMD, 0x0ff); - - /* - * Wait until command completes - * FIXME: register spinning issue - */ - counter=0; - do { pci_read_config_word ( dev, PMC551_SDRAM_CMD, &cmd); - if(counter++ > 100)break; - } while ( (PCI_COMMAND_IO) & cmd ); - - pci_read_config_dword ( dev, PMC551_DRAM_CFG, &dcmd); - dcmd |= 0x02000000; - pci_write_config_dword ( dev, PMC551_DRAM_CFG, dcmd); - - /* - * Check to make certain fast back-to-back, if not - * then set it so - */ - pci_read_config_word( dev, PCI_STATUS, &cmd); - if((cmd&PCI_COMMAND_FAST_BACK) == 0) { - cmd |= PCI_COMMAND_FAST_BACK; - pci_write_config_word( dev, PCI_STATUS, cmd); - } - - /* - * Check to make certain the DEVSEL is set correctly, this device - * has a tendancy to assert DEVSEL and TRDY when a write is performed - * to the memory when memory is read-only - */ - if((cmd&PCI_STATUS_DEVSEL_MASK) != 0x0) { - cmd &= ~PCI_STATUS_DEVSEL_MASK; - pci_write_config_word( dev, PCI_STATUS, cmd ); - } - /* - * Set to be prefetchable and put everything back based on old cfg. + */ + for (i = 1; i <= 8; i++) { + pci_write_config_word(dev, PMC551_SDRAM_CMD, 0x0df); + + /* + * Make certain command has gone through + * FIXME: register spinning issue + */ + counter = 0; + do { + pci_read_config_word(dev, PMC551_SDRAM_CMD, &cmd); + if (counter++ > 100) + break; + } while ((PCI_COMMAND_IO) & cmd); + } + + pci_write_config_word(dev, PMC551_SDRAM_MA, 0x0020); + pci_write_config_word(dev, PMC551_SDRAM_CMD, 0x0ff); + + /* + * Wait until command completes + * FIXME: register spinning issue + */ + counter = 0; + do { + pci_read_config_word(dev, PMC551_SDRAM_CMD, &cmd); + if (counter++ > 100) + break; + } while ((PCI_COMMAND_IO) & cmd); + + pci_read_config_dword(dev, PMC551_DRAM_CFG, &dcmd); + dcmd |= 0x02000000; + pci_write_config_dword(dev, PMC551_DRAM_CFG, dcmd); + + /* + * Check to make certain fast back-to-back, if not + * then set it so + */ + pci_read_config_word(dev, PCI_STATUS, &cmd); + if ((cmd & PCI_COMMAND_FAST_BACK) == 0) { + cmd |= PCI_COMMAND_FAST_BACK; + pci_write_config_word(dev, PCI_STATUS, cmd); + } + + /* + * Check to make certain the DEVSEL is set correctly, this device + * has a tendancy to assert DEVSEL and TRDY when a write is performed + * to the memory when memory is read-only + */ + if ((cmd & PCI_STATUS_DEVSEL_MASK) != 0x0) { + cmd &= ~PCI_STATUS_DEVSEL_MASK; + pci_write_config_word(dev, PCI_STATUS, cmd); + } + /* + * Set to be prefetchable and put everything back based on old cfg. * it's possible that the reset of the V370PDC nuked the original * setup - */ + */ + /* + cfg |= PCI_BASE_ADDRESS_MEM_PREFETCH; + pci_write_config_dword( dev, PCI_BASE_ADDRESS_0, cfg ); + */ + /* - cfg |= PCI_BASE_ADDRESS_MEM_PREFETCH; - pci_write_config_dword( dev, PCI_BASE_ADDRESS_0, cfg ); - */ - - /* - * Turn PCI memory and I/O bus access back on - */ - pci_write_config_word( dev, PCI_COMMAND, - PCI_COMMAND_MEMORY | PCI_COMMAND_IO ); + * Turn PCI memory and I/O bus access back on + */ + pci_write_config_word(dev, PCI_COMMAND, + PCI_COMMAND_MEMORY | PCI_COMMAND_IO); #ifdef CONFIG_MTD_PMC551_DEBUG - /* - * Some screen fun - */ - printk(KERN_DEBUG "pmc551: %d%c (0x%x) of %sprefetchable memory at 0x%lx\n", - (size<1024)?size:(size<1048576)?size>>10:size>>20, - (size<1024)?'B':(size<1048576)?'K':'M', - size, ((dcmd&(0x1<<3)) == 0)?"non-":"", - (dev->resource[0].start)&PCI_BASE_ADDRESS_MEM_MASK ); - - /* - * Check to see the state of the memory - */ - pci_read_config_dword( dev, PMC551_DRAM_BLK0, &dcmd ); - printk(KERN_DEBUG "pmc551: DRAM_BLK0 Flags: %s,%s\n" - "pmc551: DRAM_BLK0 Size: %d at %d\n" - "pmc551: DRAM_BLK0 Row MUX: %d, Col MUX: %d\n", - (((0x1<<1)&dcmd) == 0)?"RW":"RO", - (((0x1<<0)&dcmd) == 0)?"Off":"On", - PMC551_DRAM_BLK_GET_SIZE(dcmd), - ((dcmd>>20)&0x7FF), ((dcmd>>13)&0x7), ((dcmd>>9)&0xF) ); - - pci_read_config_dword( dev, PMC551_DRAM_BLK1, &dcmd ); - printk(KERN_DEBUG "pmc551: DRAM_BLK1 Flags: %s,%s\n" - "pmc551: DRAM_BLK1 Size: %d at %d\n" - "pmc551: DRAM_BLK1 Row MUX: %d, Col MUX: %d\n", - (((0x1<<1)&dcmd) == 0)?"RW":"RO", - (((0x1<<0)&dcmd) == 0)?"Off":"On", - PMC551_DRAM_BLK_GET_SIZE(dcmd), - ((dcmd>>20)&0x7FF), ((dcmd>>13)&0x7), ((dcmd>>9)&0xF) ); - - pci_read_config_dword( dev, PMC551_DRAM_BLK2, &dcmd ); - printk(KERN_DEBUG "pmc551: DRAM_BLK2 Flags: %s,%s\n" - "pmc551: DRAM_BLK2 Size: %d at %d\n" - "pmc551: DRAM_BLK2 Row MUX: %d, Col MUX: %d\n", - (((0x1<<1)&dcmd) == 0)?"RW":"RO", - (((0x1<<0)&dcmd) == 0)?"Off":"On", - PMC551_DRAM_BLK_GET_SIZE(dcmd), - ((dcmd>>20)&0x7FF), ((dcmd>>13)&0x7), ((dcmd>>9)&0xF) ); - - pci_read_config_dword( dev, PMC551_DRAM_BLK3, &dcmd ); - printk(KERN_DEBUG "pmc551: DRAM_BLK3 Flags: %s,%s\n" - "pmc551: DRAM_BLK3 Size: %d at %d\n" - "pmc551: DRAM_BLK3 Row MUX: %d, Col MUX: %d\n", - (((0x1<<1)&dcmd) == 0)?"RW":"RO", - (((0x1<<0)&dcmd) == 0)?"Off":"On", - PMC551_DRAM_BLK_GET_SIZE(dcmd), - ((dcmd>>20)&0x7FF), ((dcmd>>13)&0x7), ((dcmd>>9)&0xF) ); - - pci_read_config_word( dev, PCI_COMMAND, &cmd ); - printk( KERN_DEBUG "pmc551: Memory Access %s\n", - (((0x1<<1)&cmd) == 0)?"off":"on" ); - printk( KERN_DEBUG "pmc551: I/O Access %s\n", - (((0x1<<0)&cmd) == 0)?"off":"on" ); - - pci_read_config_word( dev, PCI_STATUS, &cmd ); - printk( KERN_DEBUG "pmc551: Devsel %s\n", - ((PCI_STATUS_DEVSEL_MASK&cmd)==0x000)?"Fast": - ((PCI_STATUS_DEVSEL_MASK&cmd)==0x200)?"Medium": - ((PCI_STATUS_DEVSEL_MASK&cmd)==0x400)?"Slow":"Invalid" ); - - printk( KERN_DEBUG "pmc551: %sFast Back-to-Back\n", - ((PCI_COMMAND_FAST_BACK&cmd) == 0)?"Not ":"" ); - - pci_read_config_byte(dev, PMC551_SYS_CTRL_REG, &bcmd ); - printk( KERN_DEBUG "pmc551: EEPROM is under %s control\n" - "pmc551: System Control Register is %slocked to PCI access\n" - "pmc551: System Control Register is %slocked to EEPROM access\n", - (bcmd&0x1)?"software":"hardware", - (bcmd&0x20)?"":"un", (bcmd&0x40)?"":"un"); + /* + * Some screen fun + */ + printk(KERN_DEBUG "pmc551: %d%c (0x%x) of %sprefetchable memory at " + "0x%llx\n", (size < 1024) ? size : (size < 1048576) ? + size >> 10 : size >> 20, + (size < 1024) ? 'B' : (size < 1048576) ? 'K' : 'M', size, + ((dcmd & (0x1 << 3)) == 0) ? "non-" : "", + (unsigned long long)pci_resource_start(dev, 0)); + + /* + * Check to see the state of the memory + */ + pci_read_config_dword(dev, PMC551_DRAM_BLK0, &dcmd); + printk(KERN_DEBUG "pmc551: DRAM_BLK0 Flags: %s,%s\n" + "pmc551: DRAM_BLK0 Size: %d at %d\n" + "pmc551: DRAM_BLK0 Row MUX: %d, Col MUX: %d\n", + (((0x1 << 1) & dcmd) == 0) ? "RW" : "RO", + (((0x1 << 0) & dcmd) == 0) ? "Off" : "On", + PMC551_DRAM_BLK_GET_SIZE(dcmd), + ((dcmd >> 20) & 0x7FF), ((dcmd >> 13) & 0x7), + ((dcmd >> 9) & 0xF)); + + pci_read_config_dword(dev, PMC551_DRAM_BLK1, &dcmd); + printk(KERN_DEBUG "pmc551: DRAM_BLK1 Flags: %s,%s\n" + "pmc551: DRAM_BLK1 Size: %d at %d\n" + "pmc551: DRAM_BLK1 Row MUX: %d, Col MUX: %d\n", + (((0x1 << 1) & dcmd) == 0) ? "RW" : "RO", + (((0x1 << 0) & dcmd) == 0) ? "Off" : "On", + PMC551_DRAM_BLK_GET_SIZE(dcmd), + ((dcmd >> 20) & 0x7FF), ((dcmd >> 13) & 0x7), + ((dcmd >> 9) & 0xF)); + + pci_read_config_dword(dev, PMC551_DRAM_BLK2, &dcmd); + printk(KERN_DEBUG "pmc551: DRAM_BLK2 Flags: %s,%s\n" + "pmc551: DRAM_BLK2 Size: %d at %d\n" + "pmc551: DRAM_BLK2 Row MUX: %d, Col MUX: %d\n", + (((0x1 << 1) & dcmd) == 0) ? "RW" : "RO", + (((0x1 << 0) & dcmd) == 0) ? "Off" : "On", + PMC551_DRAM_BLK_GET_SIZE(dcmd), + ((dcmd >> 20) & 0x7FF), ((dcmd >> 13) & 0x7), + ((dcmd >> 9) & 0xF)); + + pci_read_config_dword(dev, PMC551_DRAM_BLK3, &dcmd); + printk(KERN_DEBUG "pmc551: DRAM_BLK3 Flags: %s,%s\n" + "pmc551: DRAM_BLK3 Size: %d at %d\n" + "pmc551: DRAM_BLK3 Row MUX: %d, Col MUX: %d\n", + (((0x1 << 1) & dcmd) == 0) ? "RW" : "RO", + (((0x1 << 0) & dcmd) == 0) ? "Off" : "On", + PMC551_DRAM_BLK_GET_SIZE(dcmd), + ((dcmd >> 20) & 0x7FF), ((dcmd >> 13) & 0x7), + ((dcmd >> 9) & 0xF)); + + pci_read_config_word(dev, PCI_COMMAND, &cmd); + printk(KERN_DEBUG "pmc551: Memory Access %s\n", + (((0x1 << 1) & cmd) == 0) ? "off" : "on"); + printk(KERN_DEBUG "pmc551: I/O Access %s\n", + (((0x1 << 0) & cmd) == 0) ? "off" : "on"); + + pci_read_config_word(dev, PCI_STATUS, &cmd); + printk(KERN_DEBUG "pmc551: Devsel %s\n", + ((PCI_STATUS_DEVSEL_MASK & cmd) == 0x000) ? "Fast" : + ((PCI_STATUS_DEVSEL_MASK & cmd) == 0x200) ? "Medium" : + ((PCI_STATUS_DEVSEL_MASK & cmd) == 0x400) ? "Slow" : "Invalid"); + + printk(KERN_DEBUG "pmc551: %sFast Back-to-Back\n", + ((PCI_COMMAND_FAST_BACK & cmd) == 0) ? "Not " : ""); + + pci_read_config_byte(dev, PMC551_SYS_CTRL_REG, &bcmd); + printk(KERN_DEBUG "pmc551: EEPROM is under %s control\n" + "pmc551: System Control Register is %slocked to PCI access\n" + "pmc551: System Control Register is %slocked to EEPROM access\n", + (bcmd & 0x1) ? "software" : "hardware", + (bcmd & 0x20) ? "" : "un", (bcmd & 0x40) ? "" : "un"); #endif - return size; + return size; } /* * Kernel version specific module stuffages */ - MODULE_LICENSE("GPL"); MODULE_AUTHOR("Mark Ferrell <mferrell@mvista.com>"); MODULE_DESCRIPTION(PMC551_VERSION); @@ -633,11 +649,11 @@ MODULE_DESCRIPTION(PMC551_VERSION); /* * Stuff these outside the ifdef so as to not bust compiled in driver support */ -static int msize=0; +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; +static int asize = 0; #endif module_param(msize, int, 0); @@ -650,163 +666,174 @@ MODULE_PARM_DESC(asize, "aperture size, must be <= memsize [1-1024]"); */ static int __init init_pmc551(void) { - struct pci_dev *PCI_Device = NULL; - struct mypriv *priv; - int count, found=0; - struct mtd_info *mtd; - u32 length = 0; - - if(msize) { - msize = (1 << (ffs(msize) - 1))<<20; - if (msize > (1<<30)) { - printk(KERN_NOTICE "pmc551: Invalid memory size [%d]\n", msize); + struct pci_dev *PCI_Device = NULL; + struct mypriv *priv; + int count, found = 0; + struct mtd_info *mtd; + u32 length = 0; + + if (msize) { + msize = (1 << (ffs(msize) - 1)) << 20; + if (msize > (1 << 30)) { + printk(KERN_NOTICE "pmc551: Invalid memory size [%d]\n", + msize); return -EINVAL; } } - if(asize) { - asize = (1 << (ffs(asize) - 1))<<20; - if (asize > (1<<30) ) { - printk(KERN_NOTICE "pmc551: Invalid aperture size [%d]\n", asize); + if (asize) { + asize = (1 << (ffs(asize) - 1)) << 20; + if (asize > (1 << 30)) { + printk(KERN_NOTICE "pmc551: Invalid aperture size " + "[%d]\n", asize); return -EINVAL; } } - printk(KERN_INFO PMC551_VERSION); - - /* - * PCU-bus chipset probe. - */ - for( count = 0; count < MAX_MTD_DEVICES; count++ ) { - - if ((PCI_Device = pci_find_device(PCI_VENDOR_ID_V3_SEMI, - PCI_DEVICE_ID_V3_SEMI_V370PDC, - PCI_Device ) ) == NULL) { - break; - } - - printk(KERN_NOTICE "pmc551: Found PCI V370PDC at 0x%lX\n", - PCI_Device->resource[0].start); - - /* - * The PMC551 device acts VERY weird if you don't init it - * first. i.e. it will not correctly report devsel. If for - * some reason the sdram is in a wrote-protected state the - * device will DEVSEL when it is written to causing problems - * with the oldproc.c driver in - * some kernels (2.2.*) - */ - if((length = fixup_pmc551(PCI_Device)) <= 0) { - printk(KERN_NOTICE "pmc551: Cannot init SDRAM\n"); - break; - } + printk(KERN_INFO PMC551_VERSION); + + /* + * PCU-bus chipset probe. + */ + for (count = 0; count < MAX_MTD_DEVICES; count++) { + + if ((PCI_Device = pci_get_device(PCI_VENDOR_ID_V3_SEMI, + PCI_DEVICE_ID_V3_SEMI_V370PDC, + PCI_Device)) == NULL) { + break; + } + + printk(KERN_NOTICE "pmc551: Found PCI V370PDC at 0x%llx\n", + (unsigned long long)pci_resource_start(PCI_Device, 0)); + + /* + * The PMC551 device acts VERY weird if you don't init it + * first. i.e. it will not correctly report devsel. If for + * some reason the sdram is in a wrote-protected state the + * device will DEVSEL when it is written to causing problems + * with the oldproc.c driver in + * some kernels (2.2.*) + */ + if ((length = fixup_pmc551(PCI_Device)) <= 0) { + printk(KERN_NOTICE "pmc551: Cannot init SDRAM\n"); + break; + } /* * This is needed until the driver is capable of reading the * onboard I2C SROM to discover the "real" memory size. */ - if(msize) { + if (msize) { length = msize; - printk(KERN_NOTICE "pmc551: Using specified memory size 0x%x\n", length); + printk(KERN_NOTICE "pmc551: Using specified memory " + "size 0x%x\n", length); } else { msize = length; } - mtd = kmalloc(sizeof(struct mtd_info), GFP_KERNEL); - if (!mtd) { - printk(KERN_NOTICE "pmc551: Cannot allocate new MTD device.\n"); - break; - } - - memset(mtd, 0, sizeof(struct mtd_info)); - - priv = kmalloc (sizeof(struct mypriv), GFP_KERNEL); - if (!priv) { - printk(KERN_NOTICE "pmc551: Cannot allocate new MTD device.\n"); - kfree(mtd); - break; - } - memset(priv, 0, sizeof(*priv)); - mtd->priv = priv; - priv->dev = PCI_Device; - - if(asize > length) { - printk(KERN_NOTICE "pmc551: reducing aperture size to fit %dM\n",length>>20); + mtd = kzalloc(sizeof(struct mtd_info), GFP_KERNEL); + if (!mtd) { + printk(KERN_NOTICE "pmc551: Cannot allocate new MTD " + "device.\n"); + break; + } + + priv = kzalloc(sizeof(struct mypriv), GFP_KERNEL); + if (!priv) { + printk(KERN_NOTICE "pmc551: Cannot allocate new MTD " + "device.\n"); + kfree(mtd); + break; + } + mtd->priv = priv; + priv->dev = PCI_Device; + + if (asize > length) { + printk(KERN_NOTICE "pmc551: reducing aperture size to " + "fit %dM\n", length >> 20); priv->asize = asize = length; } else if (asize == 0 || asize == length) { - printk(KERN_NOTICE "pmc551: Using existing aperture size %dM\n", length>>20); + printk(KERN_NOTICE "pmc551: Using existing aperture " + "size %dM\n", length >> 20); priv->asize = asize = length; } else { - printk(KERN_NOTICE "pmc551: Using specified aperture size %dM\n", asize>>20); + printk(KERN_NOTICE "pmc551: Using specified aperture " + "size %dM\n", asize >> 20); priv->asize = asize; } - priv->start = ioremap(((PCI_Device->resource[0].start) - & PCI_BASE_ADDRESS_MEM_MASK), - priv->asize); + priv->start = pci_iomap(PCI_Device, 0, priv->asize); if (!priv->start) { printk(KERN_NOTICE "pmc551: Unable to map IO space\n"); - kfree(mtd->priv); - kfree(mtd); + kfree(mtd->priv); + kfree(mtd); break; } - #ifdef CONFIG_MTD_PMC551_DEBUG - printk( KERN_DEBUG "pmc551: setting aperture to %d\n", - ffs(priv->asize>>20)-1); + printk(KERN_DEBUG "pmc551: setting aperture to %d\n", + ffs(priv->asize >> 20) - 1); #endif - priv->base_map0 = ( PMC551_PCI_MEM_MAP_REG_EN - | PMC551_PCI_MEM_MAP_ENABLE - | (ffs(priv->asize>>20)-1)<<4 ); - priv->curr_map0 = priv->base_map0; - pci_write_config_dword ( priv->dev, PMC551_PCI_MEM_MAP0, - priv->curr_map0 ); + priv->base_map0 = (PMC551_PCI_MEM_MAP_REG_EN + | PMC551_PCI_MEM_MAP_ENABLE + | (ffs(priv->asize >> 20) - 1) << 4); + priv->curr_map0 = priv->base_map0; + pci_write_config_dword(priv->dev, PMC551_PCI_MEM_MAP0, + priv->curr_map0); #ifdef CONFIG_MTD_PMC551_DEBUG - printk( KERN_DEBUG "pmc551: aperture set to %d\n", - (priv->base_map0 & 0xF0)>>4 ); + printk(KERN_DEBUG "pmc551: aperture set to %d\n", + (priv->base_map0 & 0xF0) >> 4); #endif - mtd->size = msize; - mtd->flags = MTD_CAP_RAM; - mtd->erase = pmc551_erase; - mtd->read = pmc551_read; - mtd->write = pmc551_write; - mtd->point = pmc551_point; - mtd->unpoint = pmc551_unpoint; - mtd->type = MTD_RAM; - mtd->name = "PMC551 RAM board"; - mtd->erasesize = 0x10000; + mtd->size = msize; + mtd->flags = MTD_CAP_RAM; + mtd->erase = pmc551_erase; + mtd->read = pmc551_read; + mtd->write = pmc551_write; + mtd->point = pmc551_point; + mtd->unpoint = pmc551_unpoint; + mtd->type = MTD_RAM; + mtd->name = "PMC551 RAM board"; + mtd->erasesize = 0x10000; + mtd->writesize = 1; mtd->owner = THIS_MODULE; - if (add_mtd_device(mtd)) { - printk(KERN_NOTICE "pmc551: Failed to register new device\n"); - iounmap(priv->start); - kfree(mtd->priv); - kfree(mtd); - break; - } - printk(KERN_NOTICE "Registered pmc551 memory device.\n"); - printk(KERN_NOTICE "Mapped %dM of memory from 0x%p to 0x%p\n", - priv->asize>>20, - priv->start, - priv->start + priv->asize); - printk(KERN_NOTICE "Total memory is %d%c\n", - (length<1024)?length: - (length<1048576)?length>>10:length>>20, - (length<1024)?'B':(length<1048576)?'K':'M'); + if (add_mtd_device(mtd)) { + printk(KERN_NOTICE "pmc551: Failed to register new " + "device\n"); + pci_iounmap(PCI_Device, priv->start); + kfree(mtd->priv); + kfree(mtd); + break; + } + + /* Keep a reference as the add_mtd_device worked */ + pci_dev_get(PCI_Device); + + printk(KERN_NOTICE "Registered pmc551 memory device.\n"); + printk(KERN_NOTICE "Mapped %dM of memory from 0x%p to 0x%p\n", + priv->asize >> 20, + priv->start, priv->start + priv->asize); + printk(KERN_NOTICE "Total memory is %d%c\n", + (length < 1024) ? length : + (length < 1048576) ? length >> 10 : length >> 20, + (length < 1024) ? 'B' : (length < 1048576) ? 'K' : 'M'); priv->nextpmc551 = pmc551list; pmc551list = mtd; found++; - } + } + + /* Exited early, reference left over */ + if (PCI_Device) + pci_dev_put(PCI_Device); - if( !pmc551list ) { - printk(KERN_NOTICE "pmc551: not detected\n"); - return -ENODEV; - } else { + if (!pmc551list) { + printk(KERN_NOTICE "pmc551: not detected\n"); + return -ENODEV; + } else { printk(KERN_NOTICE "pmc551: %d pmc551 devices loaded\n", found); - return 0; + return 0; } } @@ -815,23 +842,24 @@ static int __init init_pmc551(void) */ static void __exit cleanup_pmc551(void) { - int found=0; - struct mtd_info *mtd; + int found = 0; + struct mtd_info *mtd; struct mypriv *priv; - while((mtd=pmc551list)) { + while ((mtd = pmc551list)) { priv = mtd->priv; pmc551list = priv->nextpmc551; - if(priv->start) { - printk (KERN_DEBUG "pmc551: unmapping %dM starting at 0x%p\n", - priv->asize>>20, priv->start); - iounmap (priv->start); + if (priv->start) { + printk(KERN_DEBUG "pmc551: unmapping %dM starting at " + "0x%p\n", priv->asize >> 20, priv->start); + pci_iounmap(priv->dev, priv->start); } + pci_dev_put(priv->dev); - kfree (mtd->priv); - del_mtd_device (mtd); - kfree (mtd); + kfree(mtd->priv); + del_mtd_device(mtd); + kfree(mtd); found++; } diff --git a/drivers/mtd/devices/slram.c b/drivers/mtd/devices/slram.c index b3f665e3c38..542a0c00900 100644 --- a/drivers/mtd/devices/slram.c +++ b/drivers/mtd/devices/slram.c @@ -209,6 +209,7 @@ static int register_device(char *name, unsigned long start, unsigned long length (*curmtd)->mtdinfo->owner = THIS_MODULE; (*curmtd)->mtdinfo->type = MTD_RAM; (*curmtd)->mtdinfo->erasesize = SLRAM_BLK_SZ; + (*curmtd)->mtdinfo->writesize = 1; if (add_mtd_device((*curmtd)->mtdinfo)) { E("slram: Failed to register new device\n"); diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c index 1e21a2c3dd2..4116535805f 100644 --- a/drivers/mtd/inftlcore.c +++ b/drivers/mtd/inftlcore.c @@ -24,7 +24,6 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -#include <linux/config.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/delay.h> diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index 6bdaacc6d6f..24747bdc3e1 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -13,13 +13,13 @@ config MTD_COMPLEX_MAPPINGS config MTD_PHYSMAP tristate "CFI Flash device in physical memory map" - depends on MTD_CFI + depends on MTD_CFI || MTD_JEDECPROBE || MTD_ROM help - This provides a 'mapping' driver which allows the CFI probe and - command set driver code to communicate with flash chips which - are mapped physically into the CPU's memory. You will need to - configure the physical address and size of the flash chips on - your particular board as well as the bus width, either statically + This provides a 'mapping' driver which allows the NOR Flash and + ROM driver code to communicate with chips which are mapped + physically into the CPU's memory. You will need to configure + the physical address and size of the flash chips on your + particular board as well as the bus width, either statically with config options or at run-time. config MTD_PHYSMAP_START @@ -212,7 +212,7 @@ config MTD_NETtel Support for flash chips on NETtel/SecureEdge/SnapGear boards. config MTD_ALCHEMY - tristate ' AMD Alchemy Pb1xxx/Db1xxx/RDK MTD support' + tristate "AMD Alchemy Pb1xxx/Db1xxx/RDK MTD support" depends on SOC_AU1X00 help Flash memory access on AMD Alchemy Pb/Db/RDK Reference Boards @@ -447,14 +447,6 @@ config MTD_DC21285 21285 bridge used with Intel's StrongARM processors. More info at <http://www.intel.com/design/bridge/docs/21285_documentation.htm>. -config MTD_IQ80310 - tristate "CFI Flash device mapped on the XScale IQ80310 board" - depends on MTD_CFI && ARCH_IQ80310 - help - This enables access routines for the flash chips on the Intel XScale - IQ80310 evaluation board. If you have one of these boards and would - like to use the flash chips on it, say 'Y'. - config MTD_IXP4XX tristate "CFI Flash device mapped on Intel IXP4xx based systems" depends on MTD_CFI && MTD_COMPLEX_MAPPINGS && ARCH_IXP4XX diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile index ab71f172eb7..191c1928bbe 100644 --- a/drivers/mtd/maps/Makefile +++ b/drivers/mtd/maps/Makefile @@ -15,7 +15,6 @@ obj-$(CONFIG_MTD_CFI_FLAGADM) += cfi_flagadm.o obj-$(CONFIG_MTD_CSTM_MIPS_IXX) += cstm_mips_ixx.o obj-$(CONFIG_MTD_DC21285) += dc21285.o obj-$(CONFIG_MTD_DILNETPC) += dilnetpc.o -obj-$(CONFIG_MTD_IQ80310) += iq80310.o obj-$(CONFIG_MTD_L440GX) += l440gx.o obj-$(CONFIG_MTD_AMD76XROM) += amd76xrom.o obj-$(CONFIG_MTD_ICHXROM) += ichxrom.o diff --git a/drivers/mtd/maps/alchemy-flash.c b/drivers/mtd/maps/alchemy-flash.c index b933a2a27b1..7fc8097e41d 100644 --- a/drivers/mtd/maps/alchemy-flash.c +++ b/drivers/mtd/maps/alchemy-flash.c @@ -7,7 +7,6 @@ * */ -#include <linux/config.h> #include <linux/init.h> #include <linux/module.h> #include <linux/types.h> diff --git a/drivers/mtd/maps/amd76xrom.c b/drivers/mtd/maps/amd76xrom.c index c350878d459..797caffb20b 100644 --- a/drivers/mtd/maps/amd76xrom.c +++ b/drivers/mtd/maps/amd76xrom.c @@ -14,7 +14,6 @@ #include <linux/mtd/map.h> #include <linux/mtd/cfi.h> #include <linux/mtd/flashchip.h> -#include <linux/config.h> #include <linux/pci.h> #include <linux/pci_ids.h> #include <linux/list.h> @@ -58,6 +57,7 @@ static void amd76xrom_cleanup(struct amd76xrom_window *window) /* Disable writes through the rom window */ pci_read_config_byte(window->pdev, 0x40, &byte); pci_write_config_byte(window->pdev, 0x40, byte & ~1); + pci_dev_put(window->pdev); } /* Free all of the mtd devices */ @@ -92,7 +92,7 @@ static int __devinit amd76xrom_init_one (struct pci_dev *pdev, struct amd76xrom_map_info *map = NULL; unsigned long map_top; - /* Remember the pci dev I find the window in */ + /* Remember the pci dev I find the window in - already have a ref */ window->pdev = pdev; /* Assume the rom window is properly setup, and find it's size */ @@ -123,9 +123,10 @@ static int __devinit amd76xrom_init_one (struct pci_dev *pdev, window->rsrc.parent = NULL; printk(KERN_ERR MOD_NAME " %s(): Unable to register resource" - " 0x%.08lx-0x%.08lx - kernel bug?\n", + " 0x%.16llx-0x%.16llx - kernel bug?\n", __func__, - window->rsrc.start, window->rsrc.end); + (unsigned long long)window->rsrc.start, + (unsigned long long)window->rsrc.end); } #if 0 @@ -302,7 +303,7 @@ static int __init init_amd76xrom(void) struct pci_device_id *id; pdev = NULL; for(id = amd76xrom_pci_tbl; id->vendor; id++) { - pdev = pci_find_device(id->vendor, id->device, NULL); + pdev = pci_get_device(id->vendor, id->device, NULL); if (pdev) { break; } diff --git a/drivers/mtd/maps/arctic-mtd.c b/drivers/mtd/maps/arctic-mtd.c index d95ae582fbe..642d96bc891 100644 --- a/drivers/mtd/maps/arctic-mtd.c +++ b/drivers/mtd/maps/arctic-mtd.c @@ -96,6 +96,8 @@ static struct mtd_partition arctic_partitions[PARTITIONS] = { static int __init init_arctic_mtd(void) { + int err = 0; + printk("%s: 0x%08x at 0x%08x\n", NAME, SIZE, PADDR); arctic_mtd_map.virt = ioremap(PADDR, SIZE); @@ -109,12 +111,20 @@ init_arctic_mtd(void) printk("%s: probing %d-bit flash bus\n", NAME, BUSWIDTH * 8); arctic_mtd = do_map_probe("cfi_probe", &arctic_mtd_map); - if (!arctic_mtd) + if (!arctic_mtd) { + iounmap((void *) arctic_mtd_map.virt); return -ENXIO; + } arctic_mtd->owner = THIS_MODULE; - return add_mtd_partitions(arctic_mtd, arctic_partitions, PARTITIONS); + err = add_mtd_partitions(arctic_mtd, arctic_partitions, PARTITIONS); + if (err) { + printk("%s: add_mtd_partitions failed\n", NAME); + iounmap((void *) arctic_mtd_map.virt); + } + + return err; } static void __exit diff --git a/drivers/mtd/maps/beech-mtd.c b/drivers/mtd/maps/beech-mtd.c index 5df7361d140..a64b1a5ab31 100644 --- a/drivers/mtd/maps/beech-mtd.c +++ b/drivers/mtd/maps/beech-mtd.c @@ -72,6 +72,8 @@ static struct mtd_partition beech_partitions[2] = { static int __init init_beech_mtd(void) { + int err = 0; + printk("%s: 0x%08x at 0x%08x\n", NAME, SIZE, PADDR); beech_mtd_map.virt = ioremap(PADDR, SIZE); @@ -86,12 +88,20 @@ init_beech_mtd(void) printk("%s: probing %d-bit flash bus\n", NAME, BUSWIDTH * 8); beech_mtd = do_map_probe("cfi_probe", &beech_mtd_map); - if (!beech_mtd) + if (!beech_mtd) { + iounmap((void *) beech_mtd_map.virt); return -ENXIO; + } beech_mtd->owner = THIS_MODULE; - return add_mtd_partitions(beech_mtd, beech_partitions, 2); + err = add_mtd_partitions(beech_mtd, beech_partitions, 2); + if (err) { + printk("%s: add_mtd_partitions failed\n", NAME); + iounmap((void *) beech_mtd_map.virt); + } + + return err; } static void __exit diff --git a/drivers/mtd/maps/ceiva.c b/drivers/mtd/maps/ceiva.c index 5a95ab370a9..0402c21e291 100644 --- a/drivers/mtd/maps/ceiva.c +++ b/drivers/mtd/maps/ceiva.c @@ -14,7 +14,6 @@ * $Id: ceiva.c,v 1.11 2004/09/16 23:27:12 gleixner Exp $ */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/ioport.h> diff --git a/drivers/mtd/maps/cstm_mips_ixx.c b/drivers/mtd/maps/cstm_mips_ixx.c index a370953c151..d6bef100d69 100644 --- a/drivers/mtd/maps/cstm_mips_ixx.c +++ b/drivers/mtd/maps/cstm_mips_ixx.c @@ -38,7 +38,6 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> #include <linux/mtd/partitions.h> -#include <linux/config.h> #include <linux/delay.h> #if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) @@ -172,7 +171,14 @@ int __init init_cstm_mips_ixx(void) cstm_mips_ixx_map[i].phys = cstm_mips_ixx_board_desc[i].window_addr; cstm_mips_ixx_map[i].virt = ioremap(cstm_mips_ixx_board_desc[i].window_addr, cstm_mips_ixx_board_desc[i].window_size); if (!cstm_mips_ixx_map[i].virt) { + int j = 0; printk(KERN_WARNING "Failed to ioremap\n"); + for (j = 0; j < i; j++) { + if (cstm_mips_ixx_map[j].virt) { + iounmap((void *)cstm_mips_ixx_map[j].virt); + cstm_mips_ixx_map[j].virt = 0; + } + } return -EIO; } cstm_mips_ixx_map[i].name = cstm_mips_ixx_board_desc[i].name; @@ -205,8 +211,15 @@ int __init init_cstm_mips_ixx(void) cstm_mips_ixx_map[i].map_priv_2 = (unsigned long)mymtd; add_mtd_partitions(mymtd, parts, cstm_mips_ixx_board_desc[i].num_partitions); } - else - return -ENXIO; + else { + for (i = 0; i < PHYSMAP_NUMBER; i++) { + if (cstm_mips_ixx_map[i].virt) { + iounmap((void *)cstm_mips_ixx_map[i].virt); + cstm_mips_ixx_map[i].virt = 0; + } + } + return -ENXIO; + } } return 0; } diff --git a/drivers/mtd/maps/dbox2-flash.c b/drivers/mtd/maps/dbox2-flash.c index 85c2a9e22b1..92a9c7fac99 100644 --- a/drivers/mtd/maps/dbox2-flash.c +++ b/drivers/mtd/maps/dbox2-flash.c @@ -12,7 +12,6 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> #include <linux/mtd/partitions.h> -#include <linux/config.h> #include <linux/errno.h> /* partition_info gives details on the logical partitions that the split the diff --git a/drivers/mtd/maps/dc21285.c b/drivers/mtd/maps/dc21285.c index 8b3784e2de8..b32bb9347d7 100644 --- a/drivers/mtd/maps/dc21285.c +++ b/drivers/mtd/maps/dc21285.c @@ -7,7 +7,6 @@ * * $Id: dc21285.c,v 1.24 2005/11/07 11:14:26 gleixner Exp $ */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> diff --git a/drivers/mtd/maps/dilnetpc.c b/drivers/mtd/maps/dilnetpc.c index c299d10b33e..b1104fe1f20 100644 --- a/drivers/mtd/maps/dilnetpc.c +++ b/drivers/mtd/maps/dilnetpc.c @@ -25,7 +25,6 @@ * and http://www.ssv-embedded.de/ssv/pc104/p170.htm */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> diff --git a/drivers/mtd/maps/dmv182.c b/drivers/mtd/maps/dmv182.c index 2bb3c0f0f97..a43c49905ca 100644 --- a/drivers/mtd/maps/dmv182.c +++ b/drivers/mtd/maps/dmv182.c @@ -16,7 +16,6 @@ * option) any later version. */ -#include <linux/config.h> #include <linux/module.h> #include <linux/init.h> #include <linux/types.h> diff --git a/drivers/mtd/maps/ebony.c b/drivers/mtd/maps/ebony.c index 60a6e51d662..1488bb92f26 100644 --- a/drivers/mtd/maps/ebony.c +++ b/drivers/mtd/maps/ebony.c @@ -20,7 +20,6 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> #include <linux/mtd/partitions.h> -#include <linux/config.h> #include <asm/io.h> #include <asm/ibm44x.h> #include <platforms/4xx/ebony.h> @@ -109,6 +108,7 @@ int __init init_ebony(void) ARRAY_SIZE(ebony_small_partitions)); } else { printk("map probe failed for flash\n"); + iounmap(ebony_small_map.virt); return -ENXIO; } @@ -118,6 +118,7 @@ int __init init_ebony(void) if (!ebony_large_map.virt) { printk("Failed to ioremap flash\n"); + iounmap(ebony_small_map.virt); return -EIO; } @@ -130,6 +131,8 @@ int __init init_ebony(void) ARRAY_SIZE(ebony_large_partitions)); } else { printk("map probe failed for flash\n"); + iounmap(ebony_small_map.virt); + iounmap(ebony_large_map.virt); return -ENXIO; } diff --git a/drivers/mtd/maps/edb7312.c b/drivers/mtd/maps/edb7312.c index b48a3473ffc..1c5b97c8968 100644 --- a/drivers/mtd/maps/edb7312.c +++ b/drivers/mtd/maps/edb7312.c @@ -17,7 +17,6 @@ #include <asm/io.h> #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> -#include <linux/config.h> #ifdef CONFIG_MTD_PARTITIONS #include <linux/mtd/partitions.h> diff --git a/drivers/mtd/maps/fortunet.c b/drivers/mtd/maps/fortunet.c index c6bf4e1219e..7c50c271651 100644 --- a/drivers/mtd/maps/fortunet.c +++ b/drivers/mtd/maps/fortunet.c @@ -218,8 +218,11 @@ int __init init_fortunet(void) map_regions[ix].map_info.size); if(!map_regions[ix].map_info.virt) { + int j = 0; printk(MTD_FORTUNET_PK "%s flash failed to ioremap!\n", map_regions[ix].map_info.name); + for (j = 0 ; j < ix; j++) + iounmap(map_regions[j].map_info.virt); return -ENXIO; } simple_map_init(&map_regions[ix].map_info); diff --git a/drivers/mtd/maps/h720x-flash.c b/drivers/mtd/maps/h720x-flash.c index 0667101ccbe..6dde3182d64 100644 --- a/drivers/mtd/maps/h720x-flash.c +++ b/drivers/mtd/maps/h720x-flash.c @@ -8,7 +8,6 @@ * 2003 Thomas Gleixner <tglx@linutronix.de> */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> diff --git a/drivers/mtd/maps/ichxrom.c b/drivers/mtd/maps/ichxrom.c index ea5073781b3..2bb3e63606e 100644 --- a/drivers/mtd/maps/ichxrom.c +++ b/drivers/mtd/maps/ichxrom.c @@ -14,7 +14,6 @@ #include <linux/mtd/map.h> #include <linux/mtd/cfi.h> #include <linux/mtd/flashchip.h> -#include <linux/config.h> #include <linux/pci.h> #include <linux/pci_ids.h> #include <linux/list.h> @@ -62,6 +61,7 @@ static void ichxrom_cleanup(struct ichxrom_window *window) /* Disable writes through the rom window */ pci_read_config_word(window->pdev, BIOS_CNTL, &word); pci_write_config_word(window->pdev, BIOS_CNTL, word & ~1); + pci_dev_put(window->pdev); /* Free all of the mtd devices */ list_for_each_entry_safe(map, scratch, &window->maps, list) { @@ -177,9 +177,10 @@ static int __devinit ichxrom_init_one (struct pci_dev *pdev, window->rsrc.parent = NULL; printk(KERN_DEBUG MOD_NAME ": %s(): Unable to register resource" - " 0x%.08lx-0x%.08lx - kernel bug?\n", + " 0x%.16llx-0x%.16llx - kernel bug?\n", __func__, - window->rsrc.start, window->rsrc.end); + (unsigned long long)window->rsrc.start, + (unsigned long long)window->rsrc.end); } /* Map the firmware hub into my address space. */ @@ -355,7 +356,7 @@ static int __init init_ichxrom(void) pdev = NULL; for (id = ichxrom_pci_tbl; id->vendor; id++) { - pdev = pci_find_device(id->vendor, id->device, NULL); + pdev = pci_get_device(id->vendor, id->device, NULL); if (pdev) { break; } diff --git a/drivers/mtd/maps/impa7.c b/drivers/mtd/maps/impa7.c index ba7f40311a7..a0b4dc7155d 100644 --- a/drivers/mtd/maps/impa7.c +++ b/drivers/mtd/maps/impa7.c @@ -17,7 +17,6 @@ #include <asm/io.h> #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> -#include <linux/config.h> #ifdef CONFIG_MTD_PARTITIONS #include <linux/mtd/partitions.h> diff --git a/drivers/mtd/maps/integrator-flash.c b/drivers/mtd/maps/integrator-flash.c index a3ba52fbd86..c8db01b3e45 100644 --- a/drivers/mtd/maps/integrator-flash.c +++ b/drivers/mtd/maps/integrator-flash.c @@ -26,7 +26,6 @@ ======================================================================*/ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> diff --git a/drivers/mtd/maps/ipaq-flash.c b/drivers/mtd/maps/ipaq-flash.c index b8ccb0a9578..f27c132794c 100644 --- a/drivers/mtd/maps/ipaq-flash.c +++ b/drivers/mtd/maps/ipaq-flash.c @@ -8,7 +8,6 @@ * $Id: ipaq-flash.c,v 1.5 2005/11/07 11:14:27 gleixner Exp $ */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> diff --git a/drivers/mtd/maps/iq80310.c b/drivers/mtd/maps/iq80310.c deleted file mode 100644 index 62d9e87d84e..00000000000 --- a/drivers/mtd/maps/iq80310.c +++ /dev/null @@ -1,118 +0,0 @@ -/* - * $Id: iq80310.c,v 1.21 2005/11/07 11:14:27 gleixner Exp $ - * - * Mapping for the Intel XScale IQ80310 evaluation board - * - * 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/slab.h> -#include <asm/io.h> -#include <linux/mtd/mtd.h> -#include <linux/mtd/map.h> -#include <linux/mtd/partitions.h> - - -#define WINDOW_ADDR 0 -#define WINDOW_SIZE 8*1024*1024 -#define BUSWIDTH 1 - -static struct mtd_info *mymtd; - -static struct map_info iq80310_map = { - .name = "IQ80310 flash", - .size = WINDOW_SIZE, - .bankwidth = BUSWIDTH, - .phys = WINDOW_ADDR -}; - -static struct mtd_partition iq80310_partitions[4] = { - { - .name = "Firmware", - .size = 0x00080000, - .offset = 0, - .mask_flags = MTD_WRITEABLE /* force read-only */ - },{ - .name = "Kernel", - .size = 0x000a0000, - .offset = 0x00080000, - },{ - .name = "Filesystem", - .size = 0x00600000, - .offset = 0x00120000 - },{ - .name = "RedBoot", - .size = 0x000e0000, - .offset = 0x00720000, - .mask_flags = MTD_WRITEABLE - } -}; - -static struct mtd_info *mymtd; -static struct mtd_partition *parsed_parts; -static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; - -static int __init init_iq80310(void) -{ - struct mtd_partition *parts; - int nb_parts = 0; - int parsed_nr_parts = 0; - int ret; - - iq80310_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE); - if (!iq80310_map.virt) { - printk("Failed to ioremap\n"); - return -EIO; - } - simple_map_init(&iq80310_map); - - mymtd = do_map_probe("cfi_probe", &iq80310_map); - if (!mymtd) { - iounmap((void *)iq80310_map.virt); - return -ENXIO; - } - mymtd->owner = THIS_MODULE; - - ret = parse_mtd_partitions(mymtd, probes, &parsed_parts, 0); - - if (ret > 0) - parsed_nr_parts = ret; - - if (parsed_nr_parts > 0) { - parts = parsed_parts; - nb_parts = parsed_nr_parts; - } else { - parts = iq80310_partitions; - nb_parts = ARRAY_SIZE(iq80310_partitions); - } - add_mtd_partitions(mymtd, parts, nb_parts); - return 0; -} - -static void __exit cleanup_iq80310(void) -{ - if (mymtd) { - del_mtd_partitions(mymtd); - map_destroy(mymtd); - kfree(parsed_parts); - } - if (iq80310_map.virt) - iounmap((void *)iq80310_map.virt); -} - -module_init(init_iq80310); -module_exit(cleanup_iq80310); - - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Nicolas Pitre <nico@cam.org>"); -MODULE_DESCRIPTION("MTD map driver for Intel XScale IQ80310 evaluation board"); diff --git a/drivers/mtd/maps/ixp2000.c b/drivers/mtd/maps/ixp2000.c index 2c9cc7f37e9..c26488a1793 100644 --- a/drivers/mtd/maps/ixp2000.c +++ b/drivers/mtd/maps/ixp2000.c @@ -42,7 +42,6 @@ struct ixp2000_flash_info { struct map_info map; struct mtd_partition *partitions; struct resource *res; - int nr_banks; }; static inline unsigned long flash_bank_setup(struct map_info *map, unsigned long ofs) @@ -183,7 +182,6 @@ static int ixp2000_flash_probe(struct platform_device *dev) */ info->map.phys = NO_XIP; - info->nr_banks = ixp_data->nr_banks; info->map.size = ixp_data->nr_banks * window_size; info->map.bankwidth = 1; diff --git a/drivers/mtd/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c index 986c5862839..7a828e3e644 100644 --- a/drivers/mtd/maps/ixp4xx.c +++ b/drivers/mtd/maps/ixp4xx.c @@ -253,7 +253,7 @@ static int ixp4xx_flash_probe(struct platform_device *dev) /* Use the fast version */ info->map.write = ixp4xx_write16, - err = parse_mtd_partitions(info->mtd, probes, &info->partitions, 0); + err = parse_mtd_partitions(info->mtd, probes, &info->partitions, dev->resource->start); if (err > 0) { err = add_mtd_partitions(info->mtd, info->partitions, err); if(err) diff --git a/drivers/mtd/maps/l440gx.c b/drivers/mtd/maps/l440gx.c index 851bf957605..67620adf481 100644 --- a/drivers/mtd/maps/l440gx.c +++ b/drivers/mtd/maps/l440gx.c @@ -13,7 +13,6 @@ #include <asm/io.h> #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> -#include <linux/config.h> #define PIIXE_IOBASE_RESOURCE 11 @@ -62,14 +61,17 @@ static int __init init_l440gx(void) struct resource *pm_iobase; __u16 word; - dev = pci_find_device(PCI_VENDOR_ID_INTEL, + dev = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_0, NULL); - pm_dev = pci_find_device(PCI_VENDOR_ID_INTEL, + pm_dev = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, NULL); + pci_dev_put(dev); + if (!dev || !pm_dev) { printk(KERN_NOTICE "L440GX flash mapping: failed to find PIIX4 ISA bridge, cannot continue\n"); + pci_dev_put(pm_dev); return -ENODEV; } @@ -77,6 +79,7 @@ static int __init init_l440gx(void) if (!l440gx_map.virt) { printk(KERN_WARNING "Failed to ioremap L440GX flash region\n"); + pci_dev_put(pm_dev); return -ENOMEM; } simple_map_init(&l440gx_map); @@ -100,8 +103,12 @@ static int __init init_l440gx(void) pm_iobase->start += iobase & ~1; pm_iobase->end += iobase & ~1; + pci_dev_put(pm_dev); + /* Allocate the resource region */ if (pci_assign_resource(pm_dev, PIIXE_IOBASE_RESOURCE) != 0) { + pci_dev_put(dev); + pci_dev_put(pm_dev); printk(KERN_WARNING "Could not allocate pm iobase resource\n"); iounmap(l440gx_map.virt); return -ENXIO; diff --git a/drivers/mtd/maps/lasat.c b/drivers/mtd/maps/lasat.c index c658d4045ef..e3437632105 100644 --- a/drivers/mtd/maps/lasat.c +++ b/drivers/mtd/maps/lasat.c @@ -19,7 +19,6 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> #include <linux/mtd/partitions.h> -#include <linux/config.h> #include <asm/lasat/lasat.h> static struct mtd_info *lasat_mtd; @@ -80,6 +79,7 @@ static int __init init_lasat(void) return 0; } + iounmap(lasat_map.virt); return -ENXIO; } @@ -90,6 +90,7 @@ static void __exit cleanup_lasat(void) map_destroy(lasat_mtd); } if (lasat_map.virt) { + iounmap(lasat_map.virt); lasat_map.virt = 0; } } diff --git a/drivers/mtd/maps/mpc1211.c b/drivers/mtd/maps/mpc1211.c index 4685e8e1346..45a00fac88a 100644 --- a/drivers/mtd/maps/mpc1211.c +++ b/drivers/mtd/maps/mpc1211.c @@ -15,7 +15,6 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> #include <linux/mtd/partitions.h> -#include <linux/config.h> static struct mtd_info *flash_mtd; static struct mtd_partition *parsed_parts; diff --git a/drivers/mtd/maps/mtx-1_flash.c b/drivers/mtd/maps/mtx-1_flash.c index 5c25d4e552c..d884f2be28f 100644 --- a/drivers/mtd/maps/mtx-1_flash.c +++ b/drivers/mtd/maps/mtx-1_flash.c @@ -8,7 +8,6 @@ * */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/init.h> diff --git a/drivers/mtd/maps/nettel.c b/drivers/mtd/maps/nettel.c index 0994b5b2e33..198e840ff6d 100644 --- a/drivers/mtd/maps/nettel.c +++ b/drivers/mtd/maps/nettel.c @@ -277,6 +277,7 @@ int __init nettel_init(void) nettel_amd_map.virt = ioremap_nocache(amdaddr, maxsize); if (!nettel_amd_map.virt) { printk("SNAPGEAR: failed to ioremap() BOOTCS\n"); + iounmap(nettel_mmcrp); return(-EIO); } simple_map_init(&nettel_amd_map); @@ -337,7 +338,8 @@ int __init nettel_init(void) nettel_amd_map.virt = NULL; #else /* Only AMD flash supported */ - return(-ENXIO); + rc = -ENXIO; + goto out_unmap2; #endif } @@ -361,14 +363,15 @@ int __init nettel_init(void) nettel_intel_map.virt = ioremap_nocache(intel0addr, maxsize); if (!nettel_intel_map.virt) { printk("SNAPGEAR: failed to ioremap() ROMCS1\n"); - return(-EIO); + rc = -EIO; + goto out_unmap2; } simple_map_init(&nettel_intel_map); intel_mtd = do_map_probe("cfi_probe", &nettel_intel_map); if (!intel_mtd) { - iounmap(nettel_intel_map.virt); - return(-ENXIO); + rc = -ENXIO; + goto out_unmap1; } /* Set PAR to the detected size */ @@ -394,13 +397,14 @@ int __init nettel_init(void) nettel_intel_map.virt = ioremap_nocache(intel0addr, maxsize); if (!nettel_intel_map.virt) { printk("SNAPGEAR: failed to ioremap() ROMCS1/2\n"); - return(-EIO); + rc = -EIO; + goto out_unmap2; } intel_mtd = do_map_probe("cfi_probe", &nettel_intel_map); if (! intel_mtd) { - iounmap((void *) nettel_intel_map.virt); - return(-ENXIO); + rc = -ENXIO; + goto out_unmap1; } intel1size = intel_mtd->size - intel0size; @@ -456,6 +460,18 @@ int __init nettel_init(void) #endif return(rc); + +#ifdef CONFIG_MTD_CFI_INTELEXT +out_unmap1: + iounmap((void *) nettel_intel_map.virt); +#endif + +out_unmap2: + iounmap(nettel_mmcrp); + iounmap(nettel_amd_map.virt); + + return(rc); + } /****************************************************************************/ @@ -469,6 +485,10 @@ void __exit nettel_cleanup(void) del_mtd_partitions(amd_mtd); map_destroy(amd_mtd); } + if (nettel_mmcrp) { + iounmap(nettel_mmcrp); + nettel_mmcrp = NULL; + } if (nettel_amd_map.virt) { iounmap(nettel_amd_map.virt); nettel_amd_map.virt = NULL; diff --git a/drivers/mtd/maps/ocotea.c b/drivers/mtd/maps/ocotea.c index a21fcd195ab..5522eac8c98 100644 --- a/drivers/mtd/maps/ocotea.c +++ b/drivers/mtd/maps/ocotea.c @@ -18,7 +18,6 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> #include <linux/mtd/partitions.h> -#include <linux/config.h> #include <asm/io.h> #include <asm/ibm44x.h> #include <platforms/4xx/ocotea.h> @@ -98,6 +97,7 @@ int __init init_ocotea(void) ARRAY_SIZE(ocotea_small_partitions)); } else { printk("map probe failed for flash\n"); + iounmap(ocotea_small_map.virt); return -ENXIO; } @@ -107,6 +107,7 @@ int __init init_ocotea(void) if (!ocotea_large_map.virt) { printk("Failed to ioremap flash\n"); + iounmap(ocotea_small_map.virt); return -EIO; } @@ -119,6 +120,8 @@ int __init init_ocotea(void) ARRAY_SIZE(ocotea_large_partitions)); } else { printk("map probe failed for flash\n"); + iounmap(ocotea_small_map.virt); + iounmap(ocotea_large_map.virt); return -ENXIO; } diff --git a/drivers/mtd/maps/omap-toto-flash.c b/drivers/mtd/maps/omap-toto-flash.c index dc376527005..e6e391efbeb 100644 --- a/drivers/mtd/maps/omap-toto-flash.c +++ b/drivers/mtd/maps/omap-toto-flash.c @@ -8,7 +8,6 @@ * $Id: omap-toto-flash.c,v 1.5 2005/11/07 11:14:27 gleixner Exp $ */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> diff --git a/drivers/mtd/maps/pcmciamtd.c b/drivers/mtd/maps/pcmciamtd.c index c861134cbc4..995347b1beb 100644 --- a/drivers/mtd/maps/pcmciamtd.c +++ b/drivers/mtd/maps/pcmciamtd.c @@ -602,6 +602,10 @@ static int pcmciamtd_config(struct pcmcia_device *link) ret = pcmcia_request_configuration(link, &link->conf); if(ret != CS_SUCCESS) { cs_error(link, RequestConfiguration, ret); + if (dev->win_base) { + iounmap(dev->win_base); + dev->win_base = NULL; + } return -ENODEV; } diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c index 433c3cac3ca..bc7cc71788b 100644 --- a/drivers/mtd/maps/physmap.c +++ b/drivers/mtd/maps/physmap.c @@ -18,7 +18,6 @@ #include <linux/platform_device.h> #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> -#include <linux/config.h> #include <linux/mtd/partitions.h> #include <linux/mtd/physmap.h> #include <asm/io.h> @@ -159,9 +158,42 @@ err_out: return err; } +#ifdef CONFIG_PM +static int physmap_flash_suspend(struct platform_device *dev, pm_message_t state) +{ + struct physmap_flash_info *info = platform_get_drvdata(dev); + int ret = 0; + + if (info) + ret = info->mtd->suspend(info->mtd); + + return ret; +} + +static int physmap_flash_resume(struct platform_device *dev) +{ + struct physmap_flash_info *info = platform_get_drvdata(dev); + if (info) + info->mtd->resume(info->mtd); + return 0; +} + +static void physmap_flash_shutdown(struct platform_device *dev) +{ + struct physmap_flash_info *info = platform_get_drvdata(dev); + if (info && info->mtd->suspend(info->mtd) == 0) + info->mtd->resume(info->mtd); +} +#endif + static struct platform_driver physmap_flash_driver = { .probe = physmap_flash_probe, .remove = physmap_flash_remove, +#ifdef CONFIG_PM + .suspend = physmap_flash_suspend, + .resume = physmap_flash_resume, + .shutdown = physmap_flash_shutdown, +#endif .driver = { .name = "physmap-flash", }, @@ -182,7 +214,7 @@ static struct physmap_flash_data physmap_flash_data = { static struct resource physmap_flash_resource = { .start = CONFIG_MTD_PHYSMAP_START, - .end = CONFIG_MTD_PHYSMAP_START + CONFIG_MTD_PHYSMAP_LEN, + .end = CONFIG_MTD_PHYSMAP_START + CONFIG_MTD_PHYSMAP_LEN - 1, .flags = IORESOURCE_MEM, }; diff --git a/drivers/mtd/maps/redwood.c b/drivers/mtd/maps/redwood.c index 50b14033613..2257d2b500c 100644 --- a/drivers/mtd/maps/redwood.c +++ b/drivers/mtd/maps/redwood.c @@ -13,7 +13,6 @@ * or implied. */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> @@ -127,6 +126,8 @@ static struct mtd_info *redwood_mtd; int __init init_redwood_flash(void) { + int err = 0; + printk(KERN_NOTICE "redwood: flash mapping: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR); @@ -142,11 +143,18 @@ int __init init_redwood_flash(void) if (redwood_mtd) { redwood_mtd->owner = THIS_MODULE; - return add_mtd_partitions(redwood_mtd, + err = add_mtd_partitions(redwood_mtd, redwood_flash_partitions, NUM_REDWOOD_FLASH_PARTITIONS); + if (err) { + printk("init_redwood_flash: add_mtd_partitions failed\n"); + iounmap(redwood_flash_map.virt); + } + return err; + } + iounmap(redwood_flash_map.virt); return -ENXIO; } diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c index 5cefb015633..950bf1c5784 100644 --- a/drivers/mtd/maps/sa1100-flash.c +++ b/drivers/mtd/maps/sa1100-flash.c @@ -5,7 +5,6 @@ * * $Id: sa1100-flash.c,v 1.51 2005/11/07 11:14:28 gleixner Exp $ */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/ioport.h> diff --git a/drivers/mtd/maps/sbc8240.c b/drivers/mtd/maps/sbc8240.c index 350286dc1d2..b8c1331b7a0 100644 --- a/drivers/mtd/maps/sbc8240.c +++ b/drivers/mtd/maps/sbc8240.c @@ -18,7 +18,6 @@ * Both parts are JEDEC compatible. */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> @@ -157,7 +156,7 @@ int __init init_sbc8240_mtd (void) }; int devicesfound = 0; - int i; + int i,j; for (i = 0; i < NUM_FLASH_BANKS; i++) { printk (KERN_NOTICE MSG_PREFIX @@ -167,6 +166,10 @@ int __init init_sbc8240_mtd (void) (unsigned long) ioremap (pt[i].addr, pt[i].size); if (!sbc8240_map[i].map_priv_1) { printk (MSG_PREFIX "failed to ioremap\n"); + for (j = 0; j < i; j++) { + iounmap((void *) sbc8240_map[j].map_priv_1); + sbc8240_map[j].map_priv_1 = 0; + } return -EIO; } simple_map_init(&sbc8240_mtd[i]); @@ -176,6 +179,11 @@ int __init init_sbc8240_mtd (void) if (sbc8240_mtd[i]) { sbc8240_mtd[i]->module = THIS_MODULE; devicesfound++; + } else { + if (sbc8240_map[i].map_priv_1) { + iounmap((void *) sbc8240_map[i].map_priv_1); + sbc8240_map[i].map_priv_1 = 0; + } } } diff --git a/drivers/mtd/maps/sc520cdp.c b/drivers/mtd/maps/sc520cdp.c index e8c130e1efd..9b50cfc355b 100644 --- a/drivers/mtd/maps/sc520cdp.c +++ b/drivers/mtd/maps/sc520cdp.c @@ -25,7 +25,6 @@ * For details see http://www.amd.com/products/epd/desiging/evalboards/18.elansc520/520_cdp_brief/index.html */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> diff --git a/drivers/mtd/maps/scb2_flash.c b/drivers/mtd/maps/scb2_flash.c index 97a8dfd6925..dcfb85840d1 100644 --- a/drivers/mtd/maps/scb2_flash.c +++ b/drivers/mtd/maps/scb2_flash.c @@ -53,7 +53,6 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> #include <linux/mtd/cfi.h> -#include <linux/config.h> #include <linux/pci.h> #include <linux/pci_ids.h> diff --git a/drivers/mtd/maps/scx200_docflash.c b/drivers/mtd/maps/scx200_docflash.c index 28b8a571a91..5e2bce22f37 100644 --- a/drivers/mtd/maps/scx200_docflash.c +++ b/drivers/mtd/maps/scx200_docflash.c @@ -8,7 +8,6 @@ */ #include <linux/module.h> -#include <linux/config.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/init.h> @@ -88,19 +87,23 @@ static int __init init_scx200_docflash(void) printk(KERN_DEBUG NAME ": NatSemi SCx200 DOCCS Flash Driver\n"); - if ((bridge = pci_find_device(PCI_VENDOR_ID_NS, + if ((bridge = pci_get_device(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SCx200_BRIDGE, NULL)) == NULL) return -ENODEV; /* check that we have found the configuration block */ - if (!scx200_cb_present()) + if (!scx200_cb_present()) { + pci_dev_put(bridge); return -ENODEV; + } if (probe) { /* Try to use the present flash mapping if any */ pci_read_config_dword(bridge, SCx200_DOCCS_BASE, &base); pci_read_config_dword(bridge, SCx200_DOCCS_CTRL, &ctrl); + pci_dev_put(bridge); + pmr = inl(scx200_cb_base + SCx200_PMR); if (base == 0 @@ -128,6 +131,7 @@ static int __init init_scx200_docflash(void) return -ENOMEM; } } else { + pci_dev_put(bridge); for (u = size; u > 1; u >>= 1) ; if (u != 1) { @@ -164,8 +168,9 @@ static int __init init_scx200_docflash(void) outl(pmr, scx200_cb_base + SCx200_PMR); } - printk(KERN_INFO NAME ": DOCCS mapped at 0x%lx-0x%lx, width %d\n", - docmem.start, docmem.end, width); + printk(KERN_INFO NAME ": DOCCS mapped at 0x%llx-0x%llx, width %d\n", + (unsigned long long)docmem.start, + (unsigned long long)docmem.end, width); scx200_docflash_map.size = size; if (width == 8) diff --git a/drivers/mtd/maps/solutionengine.c b/drivers/mtd/maps/solutionengine.c index c53c2c369c9..d76ceef453c 100644 --- a/drivers/mtd/maps/solutionengine.c +++ b/drivers/mtd/maps/solutionengine.c @@ -16,7 +16,6 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> #include <linux/mtd/partitions.h> -#include <linux/config.h> #include <linux/errno.h> static struct mtd_info *flash_mtd; diff --git a/drivers/mtd/maps/sun_uflash.c b/drivers/mtd/maps/sun_uflash.c index 0758cb1d010..4db2055cee3 100644 --- a/drivers/mtd/maps/sun_uflash.c +++ b/drivers/mtd/maps/sun_uflash.c @@ -18,6 +18,7 @@ #include <linux/ioport.h> #include <asm/ebus.h> #include <asm/oplib.h> +#include <asm/prom.h> #include <asm/uaccess.h> #include <asm/io.h> @@ -30,146 +31,141 @@ #define UFLASH_WINDOW_SIZE 0x200000 #define UFLASH_BUSWIDTH 1 /* EBus is 8-bit */ -MODULE_AUTHOR - ("Eric Brower <ebrower@usa.net>"); -MODULE_DESCRIPTION - ("User-programmable flash device on Sun Microsystems boardsets"); -MODULE_SUPPORTED_DEVICE - ("userflash"); -MODULE_LICENSE - ("GPL"); +MODULE_AUTHOR("Eric Brower <ebrower@usa.net>"); +MODULE_DESCRIPTION("User-programmable flash device on Sun Microsystems boardsets"); +MODULE_SUPPORTED_DEVICE("userflash"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("2.0"); static LIST_HEAD(device_list); struct uflash_dev { - char * name; /* device name */ + char *name; /* device name */ struct map_info map; /* mtd map info */ - struct mtd_info * mtd; /* mtd info */ - struct list_head list; + struct mtd_info *mtd; /* mtd info */ }; struct map_info uflash_map_templ = { - .name = "SUNW,???-????", - .size = UFLASH_WINDOW_SIZE, - .bankwidth = UFLASH_BUSWIDTH, + .name = "SUNW,???-????", + .size = UFLASH_WINDOW_SIZE, + .bankwidth = UFLASH_BUSWIDTH, }; -int uflash_devinit(struct linux_ebus_device* edev) +int uflash_devinit(struct linux_ebus_device *edev, struct device_node *dp) { - int iTmp, nregs; - struct linux_prom_registers regs[2]; - struct uflash_dev *pdev; - - iTmp = prom_getproperty( - edev->prom_node, "reg", (void *)regs, sizeof(regs)); - if ((iTmp % sizeof(regs[0])) != 0) { - printk("%s: Strange reg property size %d\n", - UFLASH_DEVNAME, iTmp); - return -ENODEV; - } + struct uflash_dev *up; + struct resource *res; - nregs = iTmp / sizeof(regs[0]); + res = &edev->resource[0]; - if (nregs != 1) { + if (edev->num_addrs != 1) { /* Non-CFI userflash device-- once I find one we * can work on supporting it. */ - printk("%s: unsupported device at 0x%lx (%d regs): " \ + printk("%s: unsupported device at 0x%llx (%d regs): " \ "email ebrower@usa.net\n", - UFLASH_DEVNAME, edev->resource[0].start, nregs); + dp->full_name, (unsigned long long)res->start, + edev->num_addrs); + return -ENODEV; } - if(0 == (pdev = kmalloc(sizeof(struct uflash_dev), GFP_KERNEL))) { - printk("%s: unable to kmalloc new device\n", UFLASH_DEVNAME); - return(-ENOMEM); - } + up = kzalloc(sizeof(struct uflash_dev), GFP_KERNEL); + if (!up) + return -ENOMEM; /* copy defaults and tweak parameters */ - memcpy(&pdev->map, &uflash_map_templ, sizeof(uflash_map_templ)); - pdev->map.size = regs[0].reg_size; - - iTmp = prom_getproplen(edev->prom_node, "model"); - pdev->name = kmalloc(iTmp, GFP_KERNEL); - prom_getstring(edev->prom_node, "model", pdev->name, iTmp); - if(0 != pdev->name && 0 < strlen(pdev->name)) { - pdev->map.name = pdev->name; - } - pdev->map.phys = edev->resource[0].start; - pdev->map.virt = ioremap_nocache(edev->resource[0].start, pdev->map.size); - if(0 == pdev->map.virt) { - printk("%s: failed to map device\n", __FUNCTION__); - kfree(pdev->name); - kfree(pdev); - return(-1); + memcpy(&up->map, &uflash_map_templ, sizeof(uflash_map_templ)); + up->map.size = (res->end - res->start) + 1UL; + + up->name = of_get_property(dp, "model", NULL); + if (up->name && 0 < strlen(up->name)) + up->map.name = up->name; + + up->map.phys = res->start; + + up->map.virt = ioremap_nocache(res->start, up->map.size); + if (!up->map.virt) { + printk("%s: Failed to map device.\n", dp->full_name); + kfree(up); + + return -EINVAL; } - simple_map_init(&pdev->map); + simple_map_init(&up->map); /* MTD registration */ - pdev->mtd = do_map_probe("cfi_probe", &pdev->map); - if(0 == pdev->mtd) { - iounmap(pdev->map.virt); - kfree(pdev->name); - kfree(pdev); - return(-ENXIO); + up->mtd = do_map_probe("cfi_probe", &up->map); + if (!up->mtd) { + iounmap(up->map.virt); + kfree(up); + + return -ENXIO; } - list_add(&pdev->list, &device_list); + up->mtd->owner = THIS_MODULE; - pdev->mtd->owner = THIS_MODULE; + add_mtd_device(up->mtd); - add_mtd_device(pdev->mtd); - return(0); + dev_set_drvdata(&edev->ofdev.dev, up); + + return 0; } -static int __init uflash_init(void) +static int __devinit uflash_probe(struct of_device *dev, const struct of_device_id *match) { - struct linux_ebus *ebus = NULL; - struct linux_ebus_device *edev = NULL; - - for_each_ebus(ebus) { - for_each_ebusdev(edev, ebus) { - if (!strcmp(edev->prom_name, UFLASH_OBPNAME)) { - if(0 > prom_getproplen(edev->prom_node, "user")) { - DEBUG(2, "%s: ignoring device at 0x%lx\n", - UFLASH_DEVNAME, edev->resource[0].start); - } else { - uflash_devinit(edev); - } - } - } - } + struct linux_ebus_device *edev = to_ebus_device(&dev->dev); + struct device_node *dp = dev->node; - if(list_empty(&device_list)) { - printk("%s: unable to locate device\n", UFLASH_DEVNAME); + if (of_find_property(dp, "user", NULL)) return -ENODEV; - } - return(0); + + return uflash_devinit(edev, dp); } -static void __exit uflash_cleanup(void) +static int __devexit uflash_remove(struct of_device *dev) { - struct list_head *udevlist; - struct uflash_dev *udev; - - list_for_each(udevlist, &device_list) { - udev = list_entry(udevlist, struct uflash_dev, list); - DEBUG(2, "%s: removing device %s\n", - UFLASH_DEVNAME, udev->name); - - if(0 != udev->mtd) { - del_mtd_device(udev->mtd); - map_destroy(udev->mtd); - } - if(0 != udev->map.virt) { - iounmap(udev->map.virt); - udev->map.virt = NULL; - } - kfree(udev->name); - kfree(udev); + struct uflash_dev *up = dev_get_drvdata(&dev->dev); + + if (up->mtd) { + del_mtd_device(up->mtd); + map_destroy(up->mtd); } + if (up->map.virt) { + iounmap(up->map.virt); + up->map.virt = NULL; + } + + kfree(up); + + return 0; +} + +static struct of_device_id uflash_match[] = { + { + .name = UFLASH_OBPNAME, + }, + {}, +}; + +MODULE_DEVICE_TABLE(of, uflash_match); + +static struct of_platform_driver uflash_driver = { + .name = UFLASH_DEVNAME, + .match_table = uflash_match, + .probe = uflash_probe, + .remove = __devexit_p(uflash_remove), +}; + +static int __init uflash_init(void) +{ + return of_register_driver(&uflash_driver, &ebus_bus_type); +} + +static void __exit uflash_exit(void) +{ + of_unregister_driver(&uflash_driver); } module_init(uflash_init); -module_exit(uflash_cleanup); +module_exit(uflash_exit); diff --git a/drivers/mtd/maps/tqm834x.c b/drivers/mtd/maps/tqm834x.c index c7ae9a515c1..58e5912bd38 100644 --- a/drivers/mtd/maps/tqm834x.c +++ b/drivers/mtd/maps/tqm834x.c @@ -11,7 +11,6 @@ * */ -#include <linux/config.h> #include <linux/init.h> #include <linux/module.h> #include <linux/types.h> diff --git a/drivers/mtd/maps/tqm8xxl.c b/drivers/mtd/maps/tqm8xxl.c index a43517053e7..19578ba84ee 100644 --- a/drivers/mtd/maps/tqm8xxl.c +++ b/drivers/mtd/maps/tqm8xxl.c @@ -22,7 +22,6 @@ * Thus, we choose CONFIG_MTD_CFI_I2 & CONFIG_MTD_CFI_B4 at * kernel configuration. */ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> diff --git a/drivers/mtd/maps/ts5500_flash.c b/drivers/mtd/maps/ts5500_flash.c index a7422c20056..b47270e850b 100644 --- a/drivers/mtd/maps/ts5500_flash.c +++ b/drivers/mtd/maps/ts5500_flash.c @@ -26,7 +26,6 @@ * $Id: ts5500_flash.c,v 1.5 2005/11/07 11:14:28 gleixner Exp $ */ -#include <linux/config.h> #include <linux/init.h> #include <linux/module.h> #include <linux/kernel.h> diff --git a/drivers/mtd/maps/uclinux.c b/drivers/mtd/maps/uclinux.c index f7264dc2ac9..389fea28b9a 100644 --- a/drivers/mtd/maps/uclinux.c +++ b/drivers/mtd/maps/uclinux.c @@ -10,7 +10,6 @@ /****************************************************************************/ -#include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/init.h> diff --git a/drivers/mtd/maps/walnut.c b/drivers/mtd/maps/walnut.c index f46bec66150..ca932122fb6 100644 --- a/drivers/mtd/maps/walnut.c +++ b/drivers/mtd/maps/walnut.c @@ -20,7 +20,6 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> #include <linux/mtd/partitions.h> -#include <linux/config.h> #include <asm/io.h> #include <asm/ibm4xx.h> #include <platforms/4xx/walnut.h> @@ -69,6 +68,7 @@ int __init init_walnut(void) if (WALNUT_FLASH_ONBD_N(fpga_brds1)) { printk("The on-board flash is disabled (U79 sw 5)!"); + iounmap(fpga_status_adr); return -EIO; } if (WALNUT_FLASH_SRAM_SEL(fpga_brds1)) @@ -82,6 +82,7 @@ int __init init_walnut(void) if (!walnut_map.virt) { printk("Failed to ioremap flash.\n"); + iounmap(fpga_status_adr); return -EIO; } @@ -94,9 +95,11 @@ int __init init_walnut(void) ARRAY_SIZE(walnut_partitions)); } else { printk("map probe failed for flash\n"); + iounmap(fpga_status_adr); return -ENXIO; } + iounmap(fpga_status_adr); return 0; } diff --git a/drivers/mtd/maps/wr_sbc82xx_flash.c b/drivers/mtd/maps/wr_sbc82xx_flash.c index 60c197ec455..ac5b8105b6e 100644 --- a/drivers/mtd/maps/wr_sbc82xx_flash.c +++ b/drivers/mtd/maps/wr_sbc82xx_flash.c @@ -17,7 +17,6 @@ #include <asm/io.h> #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> -#include <linux/config.h> #include <linux/mtd/partitions.h> #include <asm/immap_cpm2.h> diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c index e5c78463ebf..04ed34694b1 100644 --- a/drivers/mtd/mtdblock.c +++ b/drivers/mtd/mtdblock.c @@ -7,7 +7,6 @@ * (C) 1999-2003 David Woodhouse <dwmw2@infradead.org> */ -#include <linux/config.h> #include <linux/fs.h> #include <linux/init.h> #include <linux/kernel.h> diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index aa18d45b264..5b6acfcb2b8 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -5,7 +5,6 @@ * */ -#include <linux/config.h> #include <linux/device.h> #include <linux/fs.h> #include <linux/init.h> @@ -63,22 +62,19 @@ static loff_t mtd_lseek (struct file *file, loff_t offset, int orig) struct mtd_info *mtd = mfi->mtd; switch (orig) { - case 0: - /* SEEK_SET */ + case SEEK_SET: break; - case 1: - /* SEEK_CUR */ + case SEEK_CUR: offset += file->f_pos; break; - case 2: - /* SEEK_END */ + case SEEK_END: offset += mtd->size; break; default: return -EINVAL; } - if (offset >= 0 && offset < mtd->size) + if (offset >= 0 && offset <= mtd->size) return file->f_pos = offset; return -EINVAL; diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 16a952dd486..c4d26de7434 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -6,7 +6,6 @@ * */ -#include <linux/config.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/sched.h> @@ -58,6 +57,16 @@ int add_mtd_device(struct mtd_info *mtd) mtd->index = i; mtd->usecount = 0; + /* Some chips always power up locked. Unlock them now */ + if ((mtd->flags & MTD_WRITEABLE) + && (mtd->flags & MTD_STUPID_LOCK) && mtd->unlock) { + if (mtd->unlock(mtd, 0, mtd->size)) + printk(KERN_WARNING + "%s: unlock failed, " + "writes may not work\n", + mtd->name); + } + DEBUG(0, "mtd: Giving out device %d to %s\n",i, mtd->name); /* No need to get a refcount on the module containing the notifier, since we hold the mtd_table_mutex */ diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 77a7123a5c5..06a930372b7 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -16,7 +16,6 @@ #include <linux/kernel.h> #include <linux/slab.h> #include <linux/list.h> -#include <linux/config.h> #include <linux/kmod.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 3db77eec0ed..c99302ed382 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -11,7 +11,7 @@ config MTD_NAND help This enables support for accessing all type of NAND flash devices. For further information see - <http://www.linux-mtd.infradead.org/tech/nand.html>. + <http://www.linux-mtd.infradead.org/doc/nand.html>. config MTD_NAND_VERIFY_WRITE bool "Verify NAND page writes" diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c index d7897dc6b3c..a0ba07c36ee 100644 --- a/drivers/mtd/nand/ams-delta.c +++ b/drivers/mtd/nand/ams-delta.c @@ -130,11 +130,13 @@ static void ams_delta_hwcontrol(struct mtd_info *mtd, int cmd, if (ctrl & NAND_CTRL_CHANGE) { unsigned long bits; - bits = (~ctrl & NAND_NCE) << 2; - bits |= (ctrl & NAND_CLE) << 7; - bits |= (ctrl & NAND_ALE) << 6; + bits = (~ctrl & NAND_NCE) ? AMS_DELTA_LATCH2_NAND_NCE : 0; + bits |= (ctrl & NAND_CLE) ? AMS_DELTA_LATCH2_NAND_CLE : 0; + bits |= (ctrl & NAND_ALE) ? AMS_DELTA_LATCH2_NAND_ALE : 0; - ams_delta_latch2_write(0xC2, bits); + ams_delta_latch2_write(AMS_DELTA_LATCH2_NAND_CLE | + AMS_DELTA_LATCH2_NAND_ALE | + AMS_DELTA_LATCH2_NAND_NCE, bits); } if (cmd != NAND_CMD_NONE) diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c index 31228334da1..09e421a9689 100644 --- a/drivers/mtd/nand/au1550nd.c +++ b/drivers/mtd/nand/au1550nd.c @@ -21,18 +21,7 @@ #include <linux/version.h> #include <asm/io.h> -/* fixme: this is ugly */ -#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 0) #include <asm/mach-au1x00/au1xxx.h> -#else -#include <asm/au1000.h> -#ifdef CONFIG_MIPS_PB1550 -#include <asm/pb1550.h> -#endif -#ifdef CONFIG_MIPS_DB1550 -#include <asm/db1x00.h> -#endif -#endif /* * MTD structure for NAND controller diff --git a/drivers/mtd/nand/edb7312.c b/drivers/mtd/nand/edb7312.c index 516c0e5e564..12017f3c6bd 100644 --- a/drivers/mtd/nand/edb7312.c +++ b/drivers/mtd/nand/edb7312.c @@ -198,6 +198,9 @@ static void __exit ep7312_cleanup(void) /* Release resources, unregister device */ nand_release(ap7312_mtd); + /* Release io resource */ + iounmap((void *)this->IO_ADDR_R); + /* Free the MTD device structure */ kfree(ep7312_mtd); } diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 27083ed0a01..975b2ef6112 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -155,7 +155,7 @@ static u16 nand_read_word(struct mtd_info *mtd) /** * nand_select_chip - [DEFAULT] control CE line * @mtd: MTD device structure - * @chip: chipnumber to select, -1 for deselect + * @chipnr: chipnumber to select, -1 for deselect * * Default select function for 1 chip devices. */ @@ -542,7 +542,6 @@ static void nand_command(struct mtd_info *mtd, unsigned int command, * Send command to NAND device. This is the version for the new large page * devices We dont have the separate regions as we have in the small page * devices. We must emulate NAND_CMD_READOOB to keep the code compatible. - * */ static void nand_command_lp(struct mtd_info *mtd, unsigned int command, int column, int page_addr) @@ -656,7 +655,7 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command, /** * nand_get_device - [GENERIC] Get chip for selected access - * @this: the nand chip descriptor + * @chip: the nand chip descriptor * @mtd: MTD device structure * @new_state: the state which is requested * @@ -696,13 +695,12 @@ nand_get_device(struct nand_chip *chip, struct mtd_info *mtd, int new_state) /** * nand_wait - [DEFAULT] wait until the command is done * @mtd: MTD device structure - * @this: NAND chip structure + * @chip: NAND chip structure * * Wait for command done. This applies to erase and program only * Erase can take up to 400ms and program up to 20ms according to * general NAND and SmartMedia specs - * -*/ + */ static int nand_wait(struct mtd_info *mtd, struct nand_chip *chip) { @@ -896,6 +894,7 @@ static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip, /** * nand_transfer_oob - [Internal] Transfer oob to client buffer * @chip: nand chip structure + * @oob: oob destination address * @ops: oob ops structure */ static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob, @@ -946,6 +945,7 @@ static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob, * * @mtd: MTD device structure * @from: offset to read from + * @ops: oob ops structure * * Internal function. Called with chip held. */ @@ -1093,9 +1093,10 @@ static int nand_read(struct mtd_info *mtd, loff_t from, size_t len, ret = nand_do_read_ops(mtd, from, &chip->ops); + *retlen = chip->ops.retlen; + nand_release_device(mtd); - *retlen = chip->ops.retlen; return ret; } @@ -1176,7 +1177,7 @@ static int nand_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip, status = chip->waitfunc(mtd, chip); - return status; + return status & NAND_STATUS_FAIL ? -EIO : 0; } /** @@ -1203,7 +1204,7 @@ static int nand_write_oob_syndrome(struct mtd_info *mtd, pos = steps * (eccsize + chunk); steps = 0; } else - pos = eccsize + chunk; + pos = eccsize; chip->cmdfunc(mtd, NAND_CMD_SEQIN, pos, page); for (i = 0; i < steps; i++) { @@ -1271,10 +1272,6 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, sndcmd = chip->ecc.read_oob(mtd, chip, page, sndcmd); buf = nand_transfer_oob(chip, buf, ops); - readlen -= ops->ooblen; - if (!readlen) - break; - if (!(chip->options & NAND_NO_READRDY)) { /* * Apply delay or wait for ready/busy pin. Do this @@ -1288,6 +1285,10 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, nand_wait_ready(mtd); } + readlen -= ops->ooblen; + if (!readlen) + break; + /* Increment page address */ realpage++; @@ -1566,7 +1567,7 @@ static uint8_t *nand_fill_oob(struct nand_chip *chip, uint8_t *oob, bytes = min_t(size_t, len, free->length); boffs = free->offset; } - memcpy(chip->oob_poi + woffs, oob, bytes); + memcpy(chip->oob_poi + boffs, oob, bytes); oob += bytes; } return oob; @@ -1610,13 +1611,13 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, if (!writelen) return 0; + chipnr = (int)(to >> chip->chip_shift); + chip->select_chip(mtd, chipnr); + /* Check, if it is write protected */ if (nand_check_wp(mtd)) return -EIO; - chipnr = (int)(to >> chip->chip_shift); - chip->select_chip(mtd, chipnr); - realpage = (int)(to >> chip->page_shift); page = realpage & chip->pagemask; blockmask = (1 << (chip->phys_erase_shift - chip->page_shift)) - 1; @@ -1691,9 +1692,10 @@ static int nand_write(struct mtd_info *mtd, loff_t to, size_t len, ret = nand_do_write_ops(mtd, to, &chip->ops); + *retlen = chip->ops.retlen; + nand_release_device(mtd); - *retlen = chip->ops.retlen; return ret; } @@ -1760,7 +1762,7 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, /** * nand_write_oob - [MTD Interface] NAND write data and/or out-of-band * @mtd: MTD device structure - * @from: offset to read from + * @to: offset to write to * @ops: oob operation description structure */ static int nand_write_oob(struct mtd_info *mtd, loff_t to, @@ -2055,7 +2057,7 @@ static void nand_sync(struct mtd_info *mtd) /** * nand_block_isbad - [MTD Interface] Check if block at offset is bad * @mtd: MTD device structure - * @ofs: offset relative to mtd start + * @offs: offset relative to mtd start */ static int nand_block_isbad(struct mtd_info *mtd, loff_t offs) { @@ -2222,7 +2224,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, } /* Try to identify manufacturer */ - for (maf_idx = 0; nand_manuf_ids[maf_idx].id != 0x0; maf_id++) { + for (maf_idx = 0; nand_manuf_ids[maf_idx].id != 0x0; maf_idx++) { if (nand_manuf_ids[maf_idx].id == *maf_id) break; } diff --git a/drivers/mtd/nand/nand_ecc.c b/drivers/mtd/nand/nand_ecc.c index 2a163e4084d..dd438ca47d9 100644 --- a/drivers/mtd/nand/nand_ecc.c +++ b/drivers/mtd/nand/nand_ecc.c @@ -65,8 +65,7 @@ static const u_char nand_ecc_precalc_table[] = { }; /** - * nand_calculate_ecc - [NAND Interface] Calculate 3 byte ECC code - * for 256 byte block + * nand_calculate_ecc - [NAND Interface] Calculate 3-byte ECC for 256-byte block * @mtd: MTD block structure * @dat: raw data * @ecc_code: buffer for ECC diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index ebd64abc8be..545ff252d81 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -25,7 +25,6 @@ * $Id: nandsim.c,v 1.8 2005/03/19 15:33:56 dedekind Exp $ */ -#include <linux/config.h> #include <linux/init.h> #include <linux/types.h> #include <linux/module.h> diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index fe8d38514ba..039c759cfbf 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -61,15 +61,15 @@ static void ndfc_select_chip(struct mtd_info *mtd, int chip) static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *chip = mtd->priv; + struct ndfc_controller *ndfc = &ndfc_ctrl; if (cmd == NAND_CMD_NONE) return; if (ctrl & NAND_CLE) - writel(cmd & 0xFF, chip->IO_ADDR_W + NDFC_CMD); + writel(cmd & 0xFF, ndfc->ndfcbase + NDFC_CMD); else - writel(cmd & 0xFF, chip->IO_ADDR_W + NDFC_ALE); + writel(cmd & 0xFF, ndfc->ndfcbase + NDFC_ALE); } static int ndfc_ready(struct mtd_info *mtd) @@ -168,7 +168,7 @@ static void ndfc_chip_init(struct ndfc_nand_mtd *mtd) chip->ecc.mode = NAND_ECC_HW; chip->ecc.size = 256; chip->ecc.bytes = 3; - chip->ecclayout = mtd->pl_chip->ecclayout; + chip->ecclayout = chip->ecc.layout = mtd->pl_chip->ecclayout; mtd->mtd.priv = chip; mtd->mtd.owner = THIS_MODULE; } diff --git a/drivers/mtd/nand/ppchameleonevb.c b/drivers/mtd/nand/ppchameleonevb.c index 22fa65c12ab..eb7d4d443de 100644 --- a/drivers/mtd/nand/ppchameleonevb.c +++ b/drivers/mtd/nand/ppchameleonevb.c @@ -276,6 +276,7 @@ static int __init ppchameleonevb_init(void) /* Scan to find existence of the device (it could not be mounted) */ if (nand_scan(ppchameleon_mtd, 1)) { iounmap((void *)ppchameleon_fio_base); + ppchameleon_fio_base = NULL; kfree(ppchameleon_mtd); goto nand_evb_init; } @@ -314,6 +315,8 @@ static int __init ppchameleonevb_init(void) ppchameleonevb_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL); if (!ppchameleonevb_mtd) { printk("Unable to allocate PPChameleonEVB NAND MTD device structure.\n"); + if (ppchameleon_fio_base) + iounmap(ppchameleon_fio_base); return -ENOMEM; } @@ -322,6 +325,8 @@ static int __init ppchameleonevb_init(void) if (!ppchameleonevb_fio_base) { printk("ioremap PPChameleonEVB NAND flash failed\n"); kfree(ppchameleonevb_mtd); + if (ppchameleon_fio_base) + iounmap(ppchameleon_fio_base); return -EIO; } @@ -378,6 +383,8 @@ static int __init ppchameleonevb_init(void) if (nand_scan(ppchameleonevb_mtd, 1)) { iounmap((void *)ppchameleonevb_fio_base); kfree(ppchameleonevb_mtd); + if (ppchameleon_fio_base) + iounmap(ppchameleon_fio_base); return -ENXIO; } #ifdef CONFIG_MTD_PARTITIONS diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index 2c262fe03d8..ff5cef24d5b 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -63,8 +63,6 @@ #include <asm/arch/regs-nand.h> #include <asm/arch/nand.h> -#define PFX "s3c2410-nand: " - #ifdef CONFIG_MTD_NAND_S3C2410_HWECC static int hardware_ecc = 1; #else @@ -99,6 +97,12 @@ struct s3c2410_nand_mtd { int scan_res; }; +enum s3c_cpu_type { + TYPE_S3C2410, + TYPE_S3C2412, + TYPE_S3C2440, +}; + /* overview of the s3c2410 nand state */ struct s3c2410_nand_info { @@ -112,9 +116,11 @@ struct s3c2410_nand_info { struct resource *area; struct clk *clk; void __iomem *regs; + void __iomem *sel_reg; + int sel_bit; int mtd_count; - unsigned char is_s3c2440; + enum s3c_cpu_type cpu_type; }; /* conversion functions */ @@ -148,7 +154,7 @@ static inline int allow_clk_stop(struct s3c2410_nand_info *info) #define NS_IN_KHZ 1000000 -static int s3c2410_nand_calc_rate(int wanted, unsigned long clk, int max) +static int s3c_nand_calc_rate(int wanted, unsigned long clk, int max) { int result; @@ -172,53 +178,58 @@ static int s3c2410_nand_calc_rate(int wanted, unsigned long clk, int max) /* controller setup */ -static int s3c2410_nand_inithw(struct s3c2410_nand_info *info, struct platform_device *pdev) +static int s3c2410_nand_inithw(struct s3c2410_nand_info *info, + struct platform_device *pdev) { struct s3c2410_platform_nand *plat = to_nand_plat(pdev); unsigned long clkrate = clk_get_rate(info->clk); + int tacls_max = (info->cpu_type == TYPE_S3C2412) ? 8 : 4; int tacls, twrph0, twrph1; - unsigned long cfg; + unsigned long cfg = 0; /* calculate the timing information for the controller */ clkrate /= 1000; /* turn clock into kHz for ease of use */ if (plat != NULL) { - tacls = s3c2410_nand_calc_rate(plat->tacls, clkrate, 4); - twrph0 = s3c2410_nand_calc_rate(plat->twrph0, clkrate, 8); - twrph1 = s3c2410_nand_calc_rate(plat->twrph1, clkrate, 8); + tacls = s3c_nand_calc_rate(plat->tacls, clkrate, tacls_max); + twrph0 = s3c_nand_calc_rate(plat->twrph0, clkrate, 8); + twrph1 = s3c_nand_calc_rate(plat->twrph1, clkrate, 8); } else { /* default timings */ - tacls = 4; + tacls = tacls_max; twrph0 = 8; twrph1 = 8; } if (tacls < 0 || twrph0 < 0 || twrph1 < 0) { - printk(KERN_ERR PFX "cannot get timings suitable for board\n"); + dev_err(info->device, "cannot get suitable timings\n"); return -EINVAL; } - printk(KERN_INFO PFX "Tacls=%d, %dns Twrph0=%d %dns, Twrph1=%d %dns\n", + dev_info(info->device, "Tacls=%d, %dns Twrph0=%d %dns, Twrph1=%d %dns\n", tacls, to_ns(tacls, clkrate), twrph0, to_ns(twrph0, clkrate), twrph1, to_ns(twrph1, clkrate)); - if (!info->is_s3c2440) { + switch (info->cpu_type) { + case TYPE_S3C2410: cfg = S3C2410_NFCONF_EN; cfg |= S3C2410_NFCONF_TACLS(tacls - 1); cfg |= S3C2410_NFCONF_TWRPH0(twrph0 - 1); cfg |= S3C2410_NFCONF_TWRPH1(twrph1 - 1); - } else { + break; + + case TYPE_S3C2440: + case TYPE_S3C2412: cfg = S3C2440_NFCONF_TACLS(tacls - 1); cfg |= S3C2440_NFCONF_TWRPH0(twrph0 - 1); cfg |= S3C2440_NFCONF_TWRPH1(twrph1 - 1); /* enable the controller and de-assert nFCE */ - writel(S3C2440_NFCONT_ENABLE | S3C2440_NFCONT_ENABLE, - info->regs + S3C2440_NFCONT); + writel(S3C2440_NFCONT_ENABLE, info->regs + S3C2440_NFCONT); } - pr_debug(PFX "NF_CONF is 0x%lx\n", cfg); + dev_dbg(info->device, "NF_CONF is 0x%lx\n", cfg); writel(cfg, info->regs + S3C2410_NFCONF); return 0; @@ -231,26 +242,21 @@ static void s3c2410_nand_select_chip(struct mtd_info *mtd, int chip) struct s3c2410_nand_info *info; struct s3c2410_nand_mtd *nmtd; struct nand_chip *this = mtd->priv; - void __iomem *reg; unsigned long cur; - unsigned long bit; nmtd = this->priv; info = nmtd->info; - bit = (info->is_s3c2440) ? S3C2440_NFCONT_nFCE : S3C2410_NFCONF_nFCE; - reg = info->regs + ((info->is_s3c2440) ? S3C2440_NFCONT : S3C2410_NFCONF); - if (chip != -1 && allow_clk_stop(info)) clk_enable(info->clk); - cur = readl(reg); + cur = readl(info->sel_reg); if (chip == -1) { - cur |= bit; + cur |= info->sel_bit; } else { if (nmtd->set != NULL && chip > nmtd->set->nr_chips) { - printk(KERN_ERR PFX "chip %d out of range\n", chip); + dev_err(info->device, "invalid chip %d\n", chip); return; } @@ -259,10 +265,10 @@ static void s3c2410_nand_select_chip(struct mtd_info *mtd, int chip) (info->platform->select_chip) (nmtd->set, chip); } - cur &= ~bit; + cur &= ~info->sel_bit; } - writel(cur, reg); + writel(cur, info->sel_reg); if (chip == -1 && allow_clk_stop(info)) clk_disable(info->clk); @@ -311,15 +317,25 @@ static void s3c2440_nand_hwcontrol(struct mtd_info *mtd, int cmd, static int s3c2410_nand_devready(struct mtd_info *mtd) { struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd); - - if (info->is_s3c2440) - return readb(info->regs + S3C2440_NFSTAT) & S3C2440_NFSTAT_READY; return readb(info->regs + S3C2410_NFSTAT) & S3C2410_NFSTAT_BUSY; } +static int s3c2440_nand_devready(struct mtd_info *mtd) +{ + struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd); + return readb(info->regs + S3C2440_NFSTAT) & S3C2440_NFSTAT_READY; +} + +static int s3c2412_nand_devready(struct mtd_info *mtd) +{ + struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd); + return readb(info->regs + S3C2412_NFSTAT) & S3C2412_NFSTAT_READY; +} + /* ECC handling functions */ -static int s3c2410_nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc) +static int s3c2410_nand_correct_data(struct mtd_info *mtd, u_char *dat, + u_char *read_ecc, u_char *calc_ecc) { pr_debug("s3c2410_nand_correct_data(%p,%p,%p,%p)\n", mtd, dat, read_ecc, calc_ecc); @@ -487,11 +503,8 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, struct s3c2410_nand_set *set) { struct nand_chip *chip = &nmtd->chip; + void __iomem *regs = info->regs; - chip->IO_ADDR_R = info->regs + S3C2410_NFDATA; - chip->IO_ADDR_W = info->regs + S3C2410_NFDATA; - chip->cmd_ctrl = s3c2410_nand_hwcontrol; - chip->dev_ready = s3c2410_nand_devready; chip->write_buf = s3c2410_nand_write_buf; chip->read_buf = s3c2410_nand_read_buf; chip->select_chip = s3c2410_nand_select_chip; @@ -500,11 +513,37 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, chip->options = 0; chip->controller = &info->controller; - if (info->is_s3c2440) { - chip->IO_ADDR_R = info->regs + S3C2440_NFDATA; - chip->IO_ADDR_W = info->regs + S3C2440_NFDATA; - chip->cmd_ctrl = s3c2440_nand_hwcontrol; - } + switch (info->cpu_type) { + case TYPE_S3C2410: + chip->IO_ADDR_W = regs + S3C2410_NFDATA; + info->sel_reg = regs + S3C2410_NFCONF; + info->sel_bit = S3C2410_NFCONF_nFCE; + chip->cmd_ctrl = s3c2410_nand_hwcontrol; + chip->dev_ready = s3c2410_nand_devready; + break; + + case TYPE_S3C2440: + chip->IO_ADDR_W = regs + S3C2440_NFDATA; + info->sel_reg = regs + S3C2440_NFCONT; + info->sel_bit = S3C2440_NFCONT_nFCE; + chip->cmd_ctrl = s3c2440_nand_hwcontrol; + chip->dev_ready = s3c2440_nand_devready; + break; + + case TYPE_S3C2412: + chip->IO_ADDR_W = regs + S3C2440_NFDATA; + info->sel_reg = regs + S3C2440_NFCONT; + info->sel_bit = S3C2412_NFCONT_nFCE0; + chip->cmd_ctrl = s3c2440_nand_hwcontrol; + chip->dev_ready = s3c2412_nand_devready; + + if (readl(regs + S3C2410_NFCONF) & S3C2412_NFCONF_NANDBOOT) + dev_info(info->device, "System booted from NAND\n"); + + break; + } + + chip->IO_ADDR_R = chip->IO_ADDR_W; nmtd->info = info; nmtd->mtd.priv = chip; @@ -512,17 +551,25 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, nmtd->set = set; if (hardware_ecc) { - chip->ecc.correct = s3c2410_nand_correct_data; - chip->ecc.hwctl = s3c2410_nand_enable_hwecc; chip->ecc.calculate = s3c2410_nand_calculate_ecc; + chip->ecc.correct = s3c2410_nand_correct_data; chip->ecc.mode = NAND_ECC_HW; chip->ecc.size = 512; chip->ecc.bytes = 3; chip->ecc.layout = &nand_hw_eccoob; - if (info->is_s3c2440) { - chip->ecc.hwctl = s3c2440_nand_enable_hwecc; - chip->ecc.calculate = s3c2440_nand_calculate_ecc; + switch (info->cpu_type) { + case TYPE_S3C2410: + chip->ecc.hwctl = s3c2410_nand_enable_hwecc; + chip->ecc.calculate = s3c2410_nand_calculate_ecc; + break; + + case TYPE_S3C2412: + case TYPE_S3C2440: + chip->ecc.hwctl = s3c2440_nand_enable_hwecc; + chip->ecc.calculate = s3c2440_nand_calculate_ecc; + break; + } } else { chip->ecc.mode = NAND_ECC_SOFT; @@ -537,7 +584,8 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, * nand layer to look for devices */ -static int s3c24xx_nand_probe(struct platform_device *pdev, int is_s3c2440) +static int s3c24xx_nand_probe(struct platform_device *pdev, + enum s3c_cpu_type cpu_type) { struct s3c2410_platform_nand *plat = to_nand_plat(pdev); struct s3c2410_nand_info *info; @@ -592,7 +640,7 @@ static int s3c24xx_nand_probe(struct platform_device *pdev, int is_s3c2440) info->device = &pdev->dev; info->platform = plat; info->regs = ioremap(res->start, size); - info->is_s3c2440 = is_s3c2440; + info->cpu_type = cpu_type; if (info->regs == NULL) { dev_err(&pdev->dev, "cannot reserve register region\n"); @@ -699,12 +747,17 @@ static int s3c24xx_nand_resume(struct platform_device *dev) static int s3c2410_nand_probe(struct platform_device *dev) { - return s3c24xx_nand_probe(dev, 0); + return s3c24xx_nand_probe(dev, TYPE_S3C2410); } static int s3c2440_nand_probe(struct platform_device *dev) { - return s3c24xx_nand_probe(dev, 1); + return s3c24xx_nand_probe(dev, TYPE_S3C2440); +} + +static int s3c2412_nand_probe(struct platform_device *dev) +{ + return s3c24xx_nand_probe(dev, TYPE_S3C2412); } static struct platform_driver s3c2410_nand_driver = { @@ -729,16 +782,29 @@ static struct platform_driver s3c2440_nand_driver = { }, }; +static struct platform_driver s3c2412_nand_driver = { + .probe = s3c2412_nand_probe, + .remove = s3c2410_nand_remove, + .suspend = s3c24xx_nand_suspend, + .resume = s3c24xx_nand_resume, + .driver = { + .name = "s3c2412-nand", + .owner = THIS_MODULE, + }, +}; + static int __init s3c2410_nand_init(void) { printk("S3C24XX NAND Driver, (c) 2004 Simtec Electronics\n"); + platform_driver_register(&s3c2412_nand_driver); platform_driver_register(&s3c2440_nand_driver); return platform_driver_register(&s3c2410_nand_driver); } static void __exit s3c2410_nand_exit(void) { + platform_driver_unregister(&s3c2412_nand_driver); platform_driver_unregister(&s3c2440_nand_driver); platform_driver_unregister(&s3c2410_nand_driver); } diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c index 21743658d15..51c7288ab49 100644 --- a/drivers/mtd/nand/sharpsl.c +++ b/drivers/mtd/nand/sharpsl.c @@ -78,7 +78,7 @@ static struct mtd_partition sharpsl_nand_default_partition_info[] = { /* * hardware specific access to control-lines * ctrl: - * NAND_CNE: bit 0 -> bit 0 & 4 + * NAND_CNE: bit 0 -> ! bit 0 & 4 * NAND_CLE: bit 1 -> bit 1 * NAND_ALE: bit 2 -> bit 2 * @@ -92,7 +92,10 @@ static void sharpsl_nand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned char bits = ctrl & 0x07; bits |= (ctrl & 0x01) << 4; - writeb((readb(FLASHCTL) & 0x17) | bits, FLASHCTL); + + bits ^= 0x11; + + writeb((readb(FLASHCTL) & ~0x17) | bits, FLASHCTL); } if (cmd != NAND_CMD_NONE) @@ -237,11 +240,6 @@ static int __init sharpsl_nand_init(void) } } - if (machine_is_husky() || machine_is_borzoi() || machine_is_akita()) { - /* Need to use small eraseblock size for backward compatibility */ - sharpsl_mtd->flags |= MTD_NO_VIRTBLOCKS; - } - add_mtd_partitions(sharpsl_mtd, sharpsl_partition_info, nr_partitions); /* Return happy */ @@ -255,8 +253,6 @@ module_init(sharpsl_nand_init); */ static void __exit sharpsl_nand_cleanup(void) { - struct nand_chip *this = (struct nand_chip *)&sharpsl_mtd[1]; - /* Release resources, unregister device */ nand_release(sharpsl_mtd); diff --git a/drivers/mtd/nand/ts7250.c b/drivers/mtd/nand/ts7250.c index a0b4b1edcb0..f40081069ab 100644 --- a/drivers/mtd/nand/ts7250.c +++ b/drivers/mtd/nand/ts7250.c @@ -97,7 +97,7 @@ static void ts7250_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) unsigned long addr = TS72XX_NAND_CONTROL_VIRT_BASE; unsigned char bits; - bits = (ctrl & NAND_CNE) << 2; + bits = (ctrl & NAND_NCE) << 2; bits |= ctrl & NAND_CLE; bits |= (ctrl & NAND_ALE) >> 2; diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c index dc7573501d8..dd5cea8b4a7 100644 --- a/drivers/mtd/nftlcore.c +++ b/drivers/mtd/nftlcore.c @@ -11,7 +11,6 @@ #define PRERELEASE -#include <linux/config.h> #include <linux/kernel.h> #include <linux/module.h> #include <asm/errno.h> diff --git a/drivers/mtd/ssfdc.c b/drivers/mtd/ssfdc.c new file mode 100644 index 00000000000..79d3bb659bf --- /dev/null +++ b/drivers/mtd/ssfdc.c @@ -0,0 +1,474 @@ +/* + * Linux driver for SSFDC Flash Translation Layer (Read only) + * (c) 2005 Eptar srl + * Author: Claudio Lanconelli <lanconelli.claudio@eptar.com> + * + * Based on NTFL and MTDBLOCK_RO drivers + * + * 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/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/hdreg.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/nand.h> +#include <linux/mtd/blktrans.h> + +struct ssfdcr_record { + struct mtd_blktrans_dev mbd; + int usecount; + unsigned char heads; + unsigned char sectors; + unsigned short cylinders; + int cis_block; /* block n. containing CIS/IDI */ + int erase_size; /* phys_block_size */ + unsigned short *logic_block_map; /* all zones (max 8192 phys blocks on + the 128MiB) */ + int map_len; /* n. phys_blocks on the card */ +}; + +#define SSFDCR_MAJOR 257 +#define SSFDCR_PARTN_BITS 3 + +#define SECTOR_SIZE 512 +#define SECTOR_SHIFT 9 +#define OOB_SIZE 16 + +#define MAX_LOGIC_BLK_PER_ZONE 1000 +#define MAX_PHYS_BLK_PER_ZONE 1024 + +#define KiB(x) ( (x) * 1024L ) +#define MiB(x) ( KiB(x) * 1024L ) + +/** CHS Table + 1MiB 2MiB 4MiB 8MiB 16MiB 32MiB 64MiB 128MiB +NCylinder 125 125 250 250 500 500 500 500 +NHead 4 4 4 4 4 8 8 16 +NSector 4 8 8 16 16 16 32 32 +SumSector 2,000 4,000 8,000 16,000 32,000 64,000 128,000 256,000 +SectorSize 512 512 512 512 512 512 512 512 +**/ + +typedef struct { + unsigned long size; + unsigned short cyl; + unsigned char head; + unsigned char sec; +} chs_entry_t; + +/* Must be ordered by size */ +static const chs_entry_t chs_table[] = { + { MiB( 1), 125, 4, 4 }, + { MiB( 2), 125, 4, 8 }, + { MiB( 4), 250, 4, 8 }, + { MiB( 8), 250, 4, 16 }, + { MiB( 16), 500, 4, 16 }, + { MiB( 32), 500, 8, 16 }, + { MiB( 64), 500, 8, 32 }, + { MiB(128), 500, 16, 32 }, + { 0 }, +}; + +static int get_chs(unsigned long size, unsigned short *cyl, unsigned char *head, + unsigned char *sec) +{ + int k; + int found = 0; + + k = 0; + while (chs_table[k].size > 0 && size > chs_table[k].size) + k++; + + if (chs_table[k].size > 0) { + if (cyl) + *cyl = chs_table[k].cyl; + if (head) + *head = chs_table[k].head; + if (sec) + *sec = chs_table[k].sec; + found = 1; + } + + return found; +} + +/* These bytes are the signature for the CIS/IDI sector */ +static const uint8_t cis_numbers[] = { + 0x01, 0x03, 0xD9, 0x01, 0xFF, 0x18, 0x02, 0xDF, 0x01, 0x20 +}; + +/* Read and check for a valid CIS sector */ +static int get_valid_cis_sector(struct mtd_info *mtd) +{ + int ret, k, cis_sector; + size_t retlen; + loff_t offset; + uint8_t *sect_buf; + + cis_sector = -1; + + sect_buf = kmalloc(SECTOR_SIZE, GFP_KERNEL); + if (!sect_buf) + goto out; + + /* + * Look for CIS/IDI sector on the first GOOD block (give up after 4 bad + * blocks). If the first good block doesn't contain CIS number the flash + * is not SSFDC formatted + */ + for (k = 0, offset = 0; k < 4; k++, offset += mtd->erasesize) { + if (!mtd->block_isbad(mtd, offset)) { + ret = mtd->read(mtd, offset, SECTOR_SIZE, &retlen, + sect_buf); + + /* CIS pattern match on the sector buffer */ + if (ret < 0 || retlen != SECTOR_SIZE) { + printk(KERN_WARNING + "SSFDC_RO:can't read CIS/IDI sector\n"); + } else if (!memcmp(sect_buf, cis_numbers, + sizeof(cis_numbers))) { + /* Found */ + cis_sector = (int)(offset >> SECTOR_SHIFT); + } else { + DEBUG(MTD_DEBUG_LEVEL1, + "SSFDC_RO: CIS/IDI sector not found" + " on %s (mtd%d)\n", mtd->name, + mtd->index); + } + break; + } + } + + kfree(sect_buf); + out: + return cis_sector; +} + +/* Read physical sector (wrapper to MTD_READ) */ +static int read_physical_sector(struct mtd_info *mtd, uint8_t *sect_buf, + int sect_no) +{ + int ret; + size_t retlen; + loff_t offset = (loff_t)sect_no << SECTOR_SHIFT; + + ret = mtd->read(mtd, offset, SECTOR_SIZE, &retlen, sect_buf); + if (ret < 0 || retlen != SECTOR_SIZE) + return -1; + + return 0; +} + +/* Read redundancy area (wrapper to MTD_READ_OOB */ +static int read_raw_oob(struct mtd_info *mtd, loff_t offs, uint8_t *buf) +{ + struct mtd_oob_ops ops; + int ret; + + ops.mode = MTD_OOB_RAW; + ops.ooboffs = 0; + ops.ooblen = mtd->oobsize; + ops.len = OOB_SIZE; + ops.oobbuf = buf; + ops.datbuf = NULL; + + ret = mtd->read_oob(mtd, offs, &ops); + if (ret < 0 || ops.retlen != OOB_SIZE) + return -1; + + return 0; +} + +/* Parity calculator on a word of n bit size */ +static int get_parity(int number, int size) +{ + int k; + int parity; + + parity = 1; + for (k = 0; k < size; k++) { + parity += (number >> k); + parity &= 1; + } + return parity; +} + +/* Read and validate the logical block address field stored in the OOB */ +static int get_logical_address(uint8_t *oob_buf) +{ + int block_address, parity; + int offset[2] = {6, 11}; /* offset of the 2 address fields within OOB */ + int j; + int ok = 0; + + /* + * Look for the first valid logical address + * Valid address has fixed pattern on most significant bits and + * parity check + */ + for (j = 0; j < ARRAY_SIZE(offset); j++) { + block_address = ((int)oob_buf[offset[j]] << 8) | + oob_buf[offset[j]+1]; + + /* Check for the signature bits in the address field (MSBits) */ + if ((block_address & ~0x7FF) == 0x1000) { + parity = block_address & 0x01; + block_address &= 0x7FF; + block_address >>= 1; + + if (get_parity(block_address, 10) != parity) { + DEBUG(MTD_DEBUG_LEVEL0, + "SSFDC_RO: logical address field%d" + "parity error(0x%04X)\n", j+1, + block_address); + } else { + ok = 1; + break; + } + } + } + + if (!ok) + block_address = -2; + + DEBUG(MTD_DEBUG_LEVEL3, "SSFDC_RO: get_logical_address() %d\n", + block_address); + + return block_address; +} + +/* Build the logic block map */ +static int build_logical_block_map(struct ssfdcr_record *ssfdc) +{ + unsigned long offset; + uint8_t oob_buf[OOB_SIZE]; + int ret, block_address, phys_block; + struct mtd_info *mtd = ssfdc->mbd.mtd; + + DEBUG(MTD_DEBUG_LEVEL1, "SSFDC_RO: build_block_map() nblks=%d (%luK)\n", + ssfdc->map_len, + (unsigned long)ssfdc->map_len * ssfdc->erase_size / 1024); + + /* Scan every physical block, skip CIS block */ + for (phys_block = ssfdc->cis_block + 1; phys_block < ssfdc->map_len; + phys_block++) { + offset = (unsigned long)phys_block * ssfdc->erase_size; + if (mtd->block_isbad(mtd, offset)) + continue; /* skip bad blocks */ + + ret = read_raw_oob(mtd, offset, oob_buf); + if (ret < 0) { + DEBUG(MTD_DEBUG_LEVEL0, + "SSFDC_RO: mtd read_oob() failed at %lu\n", + offset); + return -1; + } + block_address = get_logical_address(oob_buf); + + /* Skip invalid addresses */ + if (block_address >= 0 && + block_address < MAX_LOGIC_BLK_PER_ZONE) { + int zone_index; + + zone_index = phys_block / MAX_PHYS_BLK_PER_ZONE; + block_address += zone_index * MAX_LOGIC_BLK_PER_ZONE; + ssfdc->logic_block_map[block_address] = + (unsigned short)phys_block; + + DEBUG(MTD_DEBUG_LEVEL2, + "SSFDC_RO: build_block_map() phys_block=%d," + "logic_block_addr=%d, zone=%d\n", + phys_block, block_address, zone_index); + } + } + return 0; +} + +static void ssfdcr_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd) +{ + struct ssfdcr_record *ssfdc; + int cis_sector; + + /* Check for small page NAND flash */ + if (mtd->type != MTD_NANDFLASH || mtd->oobsize != OOB_SIZE) + return; + + /* Check for SSDFC format by reading CIS/IDI sector */ + cis_sector = get_valid_cis_sector(mtd); + if (cis_sector == -1) + return; + + ssfdc = kzalloc(sizeof(struct ssfdcr_record), GFP_KERNEL); + if (!ssfdc) { + printk(KERN_WARNING + "SSFDC_RO: out of memory for data structures\n"); + return; + } + + ssfdc->mbd.mtd = mtd; + ssfdc->mbd.devnum = -1; + ssfdc->mbd.blksize = SECTOR_SIZE; + ssfdc->mbd.tr = tr; + ssfdc->mbd.readonly = 1; + + ssfdc->cis_block = cis_sector / (mtd->erasesize >> SECTOR_SHIFT); + ssfdc->erase_size = mtd->erasesize; + ssfdc->map_len = mtd->size / mtd->erasesize; + + DEBUG(MTD_DEBUG_LEVEL1, + "SSFDC_RO: cis_block=%d,erase_size=%d,map_len=%d,n_zones=%d\n", + ssfdc->cis_block, ssfdc->erase_size, ssfdc->map_len, + (ssfdc->map_len + MAX_PHYS_BLK_PER_ZONE - 1) / + MAX_PHYS_BLK_PER_ZONE); + + /* Set geometry */ + ssfdc->heads = 16; + ssfdc->sectors = 32; + get_chs(mtd->size, NULL, &ssfdc->heads, &ssfdc->sectors); + ssfdc->cylinders = (unsigned short)((mtd->size >> SECTOR_SHIFT) / + ((long)ssfdc->sectors * (long)ssfdc->heads)); + + DEBUG(MTD_DEBUG_LEVEL1, "SSFDC_RO: using C:%d H:%d S:%d == %ld sects\n", + ssfdc->cylinders, ssfdc->heads , ssfdc->sectors, + (long)ssfdc->cylinders * (long)ssfdc->heads * + (long)ssfdc->sectors); + + ssfdc->mbd.size = (long)ssfdc->heads * (long)ssfdc->cylinders * + (long)ssfdc->sectors; + + /* Allocate logical block map */ + ssfdc->logic_block_map = kmalloc(sizeof(ssfdc->logic_block_map[0]) * + ssfdc->map_len, GFP_KERNEL); + if (!ssfdc->logic_block_map) { + printk(KERN_WARNING + "SSFDC_RO: out of memory for data structures\n"); + goto out_err; + } + memset(ssfdc->logic_block_map, 0xff, sizeof(ssfdc->logic_block_map[0]) * + ssfdc->map_len); + + /* Build logical block map */ + if (build_logical_block_map(ssfdc) < 0) + goto out_err; + + /* Register device + partitions */ + if (add_mtd_blktrans_dev(&ssfdc->mbd)) + goto out_err; + + printk(KERN_INFO "SSFDC_RO: Found ssfdc%c on mtd%d (%s)\n", + ssfdc->mbd.devnum + 'a', mtd->index, mtd->name); + return; + +out_err: + kfree(ssfdc->logic_block_map); + kfree(ssfdc); +} + +static void ssfdcr_remove_dev(struct mtd_blktrans_dev *dev) +{ + struct ssfdcr_record *ssfdc = (struct ssfdcr_record *)dev; + + DEBUG(MTD_DEBUG_LEVEL1, "SSFDC_RO: remove_dev (i=%d)\n", dev->devnum); + + del_mtd_blktrans_dev(dev); + kfree(ssfdc->logic_block_map); + kfree(ssfdc); +} + +static int ssfdcr_readsect(struct mtd_blktrans_dev *dev, + unsigned long logic_sect_no, char *buf) +{ + struct ssfdcr_record *ssfdc = (struct ssfdcr_record *)dev; + int sectors_per_block, offset, block_address; + + sectors_per_block = ssfdc->erase_size >> SECTOR_SHIFT; + offset = (int)(logic_sect_no % sectors_per_block); + block_address = (int)(logic_sect_no / sectors_per_block); + + DEBUG(MTD_DEBUG_LEVEL3, + "SSFDC_RO: ssfdcr_readsect(%lu) sec_per_blk=%d, ofst=%d," + " block_addr=%d\n", logic_sect_no, sectors_per_block, offset, + block_address); + + if (block_address >= ssfdc->map_len) + BUG(); + + block_address = ssfdc->logic_block_map[block_address]; + + DEBUG(MTD_DEBUG_LEVEL3, + "SSFDC_RO: ssfdcr_readsect() phys_block_addr=%d\n", + block_address); + + if (block_address < 0xffff) { + unsigned long sect_no; + + sect_no = (unsigned long)block_address * sectors_per_block + + offset; + + DEBUG(MTD_DEBUG_LEVEL3, + "SSFDC_RO: ssfdcr_readsect() phys_sect_no=%lu\n", + sect_no); + + if (read_physical_sector(ssfdc->mbd.mtd, buf, sect_no) < 0) + return -EIO; + } else { + memset(buf, 0xff, SECTOR_SIZE); + } + + return 0; +} + +static int ssfdcr_getgeo(struct mtd_blktrans_dev *dev, struct hd_geometry *geo) +{ + struct ssfdcr_record *ssfdc = (struct ssfdcr_record *)dev; + + DEBUG(MTD_DEBUG_LEVEL1, "SSFDC_RO: ssfdcr_getgeo() C=%d, H=%d, S=%d\n", + ssfdc->cylinders, ssfdc->heads, ssfdc->sectors); + + geo->heads = ssfdc->heads; + geo->sectors = ssfdc->sectors; + geo->cylinders = ssfdc->cylinders; + + return 0; +} + +/**************************************************************************** + * + * Module stuff + * + ****************************************************************************/ + +static struct mtd_blktrans_ops ssfdcr_tr = { + .name = "ssfdc", + .major = SSFDCR_MAJOR, + .part_bits = SSFDCR_PARTN_BITS, + .getgeo = ssfdcr_getgeo, + .readsect = ssfdcr_readsect, + .add_mtd = ssfdcr_add_mtd, + .remove_dev = ssfdcr_remove_dev, + .owner = THIS_MODULE, +}; + +static int __init init_ssfdcr(void) +{ + printk(KERN_INFO "SSFDC read-only Flash Translation layer\n"); + + return register_mtd_blktrans(&ssfdcr_tr); +} + +static void __exit cleanup_ssfdcr(void) +{ + deregister_mtd_blktrans(&ssfdcr_tr); +} + +module_init(init_ssfdcr); +module_exit(cleanup_ssfdcr); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Claudio Lanconelli <lanconelli.claudio@eptar.com>"); +MODULE_DESCRIPTION("Flash Translation Layer for read-only SSFDC SmartMedia card"); |