diff options
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/Kconfig | 13 | ||||
| -rw-r--r-- | drivers/mtd/Makefile | 3 | ||||
| -rw-r--r-- | drivers/mtd/chips/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/mtd/devices/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/mtd/mtdchar.c | 20 | ||||
| -rw-r--r-- | drivers/mtd/mtdcore.c | 13 | ||||
| -rw-r--r-- | drivers/mtd/mtdcore.h | 7 | ||||
| -rw-r--r-- | drivers/mtd/onenand/Kconfig | 1 |
8 files changed, 19 insertions, 40 deletions
diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig index 557bec599f4..5fab4e6e830 100644 --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig @@ -157,19 +157,6 @@ config MTD_BCM47XX_PARTS comment "User Modules And Translation Layers" -config MTD_CHAR - tristate "Direct char device access to MTD devices" - help - This provides a character device for each MTD device present in - the system, allowing the user to read and write directly to the - memory chips, and also use ioctl() to obtain information about - the device, or to erase parts of it. - -config HAVE_MTD_OTP - bool - help - Enable access to OTP regions using MTD_CHAR. - config MTD_BLKDEVS tristate "Common interface to block layer for MTD 'translation layers'" depends on BLOCK diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile index 18a38e55b2f..4cfb31e6c96 100644 --- a/drivers/mtd/Makefile +++ b/drivers/mtd/Makefile @@ -4,7 +4,7 @@ # Core functionality. obj-$(CONFIG_MTD) += mtd.o -mtd-y := mtdcore.o mtdsuper.o mtdconcat.o mtdpart.o +mtd-y := mtdcore.o mtdsuper.o mtdconcat.o mtdpart.o mtdchar.o obj-$(CONFIG_MTD_OF_PARTS) += ofpart.o obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o @@ -15,7 +15,6 @@ obj-$(CONFIG_MTD_BCM63XX_PARTS) += bcm63xxpart.o obj-$(CONFIG_MTD_BCM47XX_PARTS) += bcm47xxpart.o # 'Users' - code which presents functionality to userspace. -obj-$(CONFIG_MTD_CHAR) += mtdchar.o obj-$(CONFIG_MTD_BLKDEVS) += mtd_blkdevs.o obj-$(CONFIG_MTD_BLOCK) += mtdblock.o obj-$(CONFIG_MTD_BLOCK_RO) += mtdblock_ro.o diff --git a/drivers/mtd/chips/Kconfig b/drivers/mtd/chips/Kconfig index c219e3d098d..e4696b37f3d 100644 --- a/drivers/mtd/chips/Kconfig +++ b/drivers/mtd/chips/Kconfig @@ -146,7 +146,6 @@ config MTD_CFI_I8 config MTD_OTP bool "Protection Registers aka one-time programmable (OTP) bits" depends on MTD_CFI_ADV_OPTIONS - select HAVE_MTD_OTP default n help This enables support for reading, writing and locking so called diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig index ec4a2cc3e9b..2a4d55e4b36 100644 --- a/drivers/mtd/devices/Kconfig +++ b/drivers/mtd/devices/Kconfig @@ -71,7 +71,6 @@ config MTD_DATAFLASH_WRITE_VERIFY config MTD_DATAFLASH_OTP bool "DataFlash OTP support (Security Register)" depends on MTD_DATAFLASH - select HAVE_MTD_OTP help Newer DataFlash chips (revisions C and D) support 128 bytes of one-time-programmable (OTP) data. The first half may be written diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index c7292528c7b..e0e59bf9b91 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -38,6 +38,8 @@ #include <asm/uaccess.h> +#include "mtdcore.h" + static DEFINE_MUTEX(mtd_mutex); /* @@ -365,7 +367,6 @@ static void mtdchar_erase_callback (struct erase_info *instr) wake_up((wait_queue_head_t *)instr->priv); } -#ifdef CONFIG_HAVE_MTD_OTP static int otp_select_filemode(struct mtd_file_info *mfi, int mode) { struct mtd_info *mtd = mfi->mtd; @@ -395,9 +396,6 @@ static int otp_select_filemode(struct mtd_file_info *mfi, int mode) return 0; } -#else -# define otp_select_filemode(f,m) -EOPNOTSUPP -#endif static int mtdchar_writeoob(struct file *file, struct mtd_info *mtd, uint64_t start, uint32_t length, void __user *ptr, @@ -890,7 +888,6 @@ static int mtdchar_ioctl(struct file *file, u_int cmd, u_long arg) break; } -#ifdef CONFIG_HAVE_MTD_OTP case OTPSELECT: { int mode; @@ -946,7 +943,6 @@ static int mtdchar_ioctl(struct file *file, u_int cmd, u_long arg) ret = mtd_lock_user_prot_reg(mtd, oinfo.start, oinfo.length); break; } -#endif /* This ioctl is being deprecated - it truncates the ECC layout */ case ECCGETLAYOUT: @@ -1242,7 +1238,7 @@ static struct file_system_type mtd_inodefs_type = { }; MODULE_ALIAS_FS("mtd_inodefs"); -static int __init init_mtdchar(void) +int __init init_mtdchar(void) { int ret; @@ -1268,18 +1264,10 @@ err_unregister_chdev: return ret; } -static void __exit cleanup_mtdchar(void) +void __exit cleanup_mtdchar(void) { unregister_filesystem(&mtd_inodefs_type); __unregister_chrdev(MTD_CHAR_MAJOR, 0, 1 << MINORBITS, "mtd"); } -module_init(init_mtdchar); -module_exit(cleanup_mtdchar); - -MODULE_ALIAS_CHARDEV_MAJOR(MTD_CHAR_MAJOR); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); -MODULE_DESCRIPTION("Direct character-device access to MTD devices"); MODULE_ALIAS_CHARDEV_MAJOR(MTD_CHAR_MAJOR); diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 91c2efd22e1..71877ff77cb 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -41,6 +41,7 @@ #include <linux/mtd/partitions.h> #include "mtdcore.h" + /* * backing device capabilities for non-mappable devices (such as NAND flash) * - permits private mappings, copies are taken of the data @@ -96,11 +97,7 @@ EXPORT_SYMBOL_GPL(__mtd_next_device); static LIST_HEAD(mtd_notifiers); -#if defined(CONFIG_MTD_CHAR) || defined(CONFIG_MTD_CHAR_MODULE) #define MTD_DEVT(index) MKDEV(MTD_CHAR_MAJOR, (index)*2) -#else -#define MTD_DEVT(index) 0 -#endif /* REVISIT once MTD uses the driver model better, whoever allocates * the mtd_info will probably want to use the release() hook... @@ -1185,8 +1182,15 @@ static int __init init_mtd(void) proc_mtd = proc_create("mtd", 0, NULL, &mtd_proc_ops); + ret = init_mtdchar(); + if (ret) + goto out_procfs; + return 0; +out_procfs: + if (proc_mtd) + remove_proc_entry("mtd", NULL); err_bdi3: bdi_destroy(&mtd_bdi_ro_mappable); err_bdi2: @@ -1200,6 +1204,7 @@ err_reg: static void __exit cleanup_mtd(void) { + cleanup_mtdchar(); if (proc_mtd) remove_proc_entry("mtd", NULL); class_unregister(&mtd_class); diff --git a/drivers/mtd/mtdcore.h b/drivers/mtd/mtdcore.h index 9b10fed1ae2..7b0353399a1 100644 --- a/drivers/mtd/mtdcore.h +++ b/drivers/mtd/mtdcore.h @@ -1,6 +1,6 @@ /* - * These are exported solely for the purpose of mtd_blkdevs.c. You - * should not use them for _anything_ else. + * These are exported solely for the purpose of mtd_blkdevs.c and mtdchar.c. + * You should not use them for _anything_ else. */ extern struct mutex mtd_table_mutex; @@ -14,6 +14,9 @@ int parse_mtd_partitions(struct mtd_info *master, const char * const *types, struct mtd_partition **pparts, struct mtd_part_parser_data *data); +int __init init_mtdchar(void); +void __exit cleanup_mtdchar(void); + #define mtd_for_each_device(mtd) \ for ((mtd) = __mtd_next_device(0); \ (mtd) != NULL; \ diff --git a/drivers/mtd/onenand/Kconfig b/drivers/mtd/onenand/Kconfig index 91467bb0363..eac7bb28360 100644 --- a/drivers/mtd/onenand/Kconfig +++ b/drivers/mtd/onenand/Kconfig @@ -40,7 +40,6 @@ config MTD_ONENAND_SAMSUNG config MTD_ONENAND_OTP bool "OneNAND OTP Support" - select HAVE_MTD_OTP help One Block of the NAND Flash Array memory is reserved as a One-Time Programmable Block memory area. |