diff options
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/bbm.h | 5 | ||||
| -rw-r--r-- | include/linux/mtd/blktrans.h | 1 | ||||
| -rw-r--r-- | include/linux/mtd/fsmc.h | 169 | ||||
| -rw-r--r-- | include/linux/mtd/mtd.h | 304 | ||||
| -rw-r--r-- | include/linux/mtd/nand.h | 7 | ||||
| -rw-r--r-- | include/linux/mtd/pmc551.h | 78 | ||||
| -rw-r--r-- | include/linux/mtd/sh_flctl.h | 40 | ||||
| -rw-r--r-- | include/linux/mtd/spear_smi.h | 65 |
8 files changed, 291 insertions, 378 deletions
diff --git a/include/linux/mtd/bbm.h b/include/linux/mtd/bbm.h index c4eec22..650ef35 100644 --- a/include/linux/mtd/bbm.h +++ b/include/linux/mtd/bbm.h @@ -112,6 +112,11 @@ struct nand_bbt_descr { #define NAND_BBT_USE_FLASH 0x00020000 /* Do not store flash based bad block table in OOB area; store it in-band */ #define NAND_BBT_NO_OOB 0x00040000 +/* + * Do not write new bad block markers to OOB; useful, e.g., when ECC covers + * entire spare area. Must be used with NAND_BBT_USE_FLASH. + */ +#define NAND_BBT_NO_OOB_BBM 0x00080000 /* * Flag set by nand_create_default_bbt_descr(), marking that the nand_bbt_descr diff --git a/include/linux/mtd/blktrans.h b/include/linux/mtd/blktrans.h index 1bbd9f2..ed270bd 100644 --- a/include/linux/mtd/blktrans.h +++ b/include/linux/mtd/blktrans.h @@ -47,6 +47,7 @@ struct mtd_blktrans_dev { struct request_queue *rq; spinlock_t queue_lock; void *priv; + fmode_t file_mode; }; struct mtd_blktrans_ops { diff --git a/include/linux/mtd/fsmc.h b/include/linux/mtd/fsmc.h index 6987995..b200292 100644 --- a/include/linux/mtd/fsmc.h +++ b/include/linux/mtd/fsmc.h @@ -26,95 +26,83 @@ #define FSMC_NAND_BW8 1 #define FSMC_NAND_BW16 2 -/* - * The placement of the Command Latch Enable (CLE) and - * Address Latch Enable (ALE) is twisted around in the - * SPEAR310 implementation. - */ -#if defined(CONFIG_MACH_SPEAR310) -#define PLAT_NAND_CLE (1 << 17) -#define PLAT_NAND_ALE (1 << 16) -#else -#define PLAT_NAND_CLE (1 << 16) -#define PLAT_NAND_ALE (1 << 17) -#endif - #define FSMC_MAX_NOR_BANKS 4 #define FSMC_MAX_NAND_BANKS 4 #define FSMC_FLASH_WIDTH8 1 #define FSMC_FLASH_WIDTH16 2 -struct fsmc_nor_bank_regs { - uint32_t ctrl; - uint32_t ctrl_tim; -}; - -/* ctrl register definitions */ -#define BANK_ENABLE (1 << 0) -#define MUXED (1 << 1) -#define NOR_DEV (2 << 2) -#define WIDTH_8 (0 << 4) -#define WIDTH_16 (1 << 4) -#define RSTPWRDWN (1 << 6) -#define WPROT (1 << 7) -#define WRT_ENABLE (1 << 12) -#define WAIT_ENB (1 << 13) - -/* ctrl_tim register definitions */ - -struct fsmc_nand_bank_regs { - uint32_t pc; - uint32_t sts; - uint32_t comm; - uint32_t attrib; - uint32_t ioata; - uint32_t ecc1; - uint32_t ecc2; - uint32_t ecc3; -}; - +/* fsmc controller registers for NOR flash */ +#define CTRL 0x0 + /* ctrl register definitions */ + #define BANK_ENABLE (1 << 0) + #define MUXED (1 << 1) + #define NOR_DEV (2 << 2) + #define WIDTH_8 (0 << 4) + #define WIDTH_16 (1 << 4) + #define RSTPWRDWN (1 << 6) + #define WPROT (1 << 7) + #define WRT_ENABLE (1 << 12) + #define WAIT_ENB (1 << 13) + +#define CTRL_TIM 0x4 + /* ctrl_tim register definitions */ + +#define FSMC_NOR_BANK_SZ 0x8 #define FSMC_NOR_REG_SIZE 0x40 -struct fsmc_regs { - struct fsmc_nor_bank_regs nor_bank_regs[FSMC_MAX_NOR_BANKS]; - uint8_t reserved_1[0x40 - 0x20]; - struct fsmc_nand_bank_regs bank_regs[FSMC_MAX_NAND_BANKS]; - uint8_t reserved_2[0xfe0 - 0xc0]; - uint32_t peripid0; /* 0xfe0 */ - uint32_t peripid1; /* 0xfe4 */ - uint32_t peripid2; /* 0xfe8 */ - uint32_t peripid3; /* 0xfec */ - uint32_t pcellid0; /* 0xff0 */ - uint32_t pcellid1; /* 0xff4 */ - uint32_t pcellid2; /* 0xff8 */ - uint32_t pcellid3; /* 0xffc */ -}; +#define FSMC_NOR_REG(base, bank, reg) (base + \ + FSMC_NOR_BANK_SZ * (bank) + \ + reg) + +/* fsmc controller registers for NAND flash */ +#define PC 0x00 + /* pc register definitions */ + #define FSMC_RESET (1 << 0) + #define FSMC_WAITON (1 << 1) + #define FSMC_ENABLE (1 << 2) + #define FSMC_DEVTYPE_NAND (1 << 3) + #define FSMC_DEVWID_8 (0 << 4) + #define FSMC_DEVWID_16 (1 << 4) + #define FSMC_ECCEN (1 << 6) + #define FSMC_ECCPLEN_512 (0 << 7) + #define FSMC_ECCPLEN_256 (1 << 7) + #define FSMC_TCLR_1 (1) + #define FSMC_TCLR_SHIFT (9) + #define FSMC_TCLR_MASK (0xF) + #define FSMC_TAR_1 (1) + #define FSMC_TAR_SHIFT (13) + #define FSMC_TAR_MASK (0xF) +#define STS 0x04 + /* sts register definitions */ + #define FSMC_CODE_RDY (1 << 15) +#define COMM 0x08 + /* comm register definitions */ + #define FSMC_TSET_0 0 + #define FSMC_TSET_SHIFT 0 + #define FSMC_TSET_MASK 0xFF + #define FSMC_TWAIT_6 6 + #define FSMC_TWAIT_SHIFT 8 + #define FSMC_TWAIT_MASK 0xFF + #define FSMC_THOLD_4 4 + #define FSMC_THOLD_SHIFT 16 + #define FSMC_THOLD_MASK 0xFF + #define FSMC_THIZ_1 1 + #define FSMC_THIZ_SHIFT 24 + #define FSMC_THIZ_MASK 0xFF +#define ATTRIB 0x0C +#define IOATA 0x10 +#define ECC1 0x14 +#define ECC2 0x18 +#define ECC3 0x1C +#define FSMC_NAND_BANK_SZ 0x20 + +#define FSMC_NAND_REG(base, bank, reg) (base + FSMC_NOR_REG_SIZE + \ + (FSMC_NAND_BANK_SZ * (bank)) + \ + reg) #define FSMC_BUSY_WAIT_TIMEOUT (1 * HZ) -/* pc register definitions */ -#define FSMC_RESET (1 << 0) -#define FSMC_WAITON (1 << 1) -#define FSMC_ENABLE (1 << 2) -#define FSMC_DEVTYPE_NAND (1 << 3) -#define FSMC_DEVWID_8 (0 << 4) -#define FSMC_DEVWID_16 (1 << 4) -#define FSMC_ECCEN (1 << 6) -#define FSMC_ECCPLEN_512 (0 << 7) -#define FSMC_ECCPLEN_256 (1 << 7) -#define FSMC_TCLR_1 (1 << 9) -#define FSMC_TAR_1 (1 << 13) - -/* sts register definitions */ -#define FSMC_CODE_RDY (1 << 15) - -/* comm register definitions */ -#define FSMC_TSET_0 (0 << 0) -#define FSMC_TWAIT_6 (6 << 8) -#define FSMC_THOLD_4 (4 << 16) -#define FSMC_THIZ_1 (1 << 24) - /* * There are 13 bytes of ecc for every 512 byte block in FSMC version 8 * and it has to be read consecutively and immediately after the 512 @@ -133,6 +121,20 @@ struct fsmc_eccplace { struct fsmc_nand_eccplace eccplace[MAX_ECCPLACE_ENTRIES]; }; +struct fsmc_nand_timings { + uint8_t tclr; + uint8_t tar; + uint8_t thiz; + uint8_t thold; + uint8_t twait; + uint8_t tset; +}; + +enum access_mode { + USE_DMA_ACCESS = 1, + USE_WORD_ACCESS, +}; + /** * fsmc_nand_platform_data - platform specific NAND controller config * @partitions: partition table for the platform, use a default fallback @@ -146,12 +148,23 @@ struct fsmc_eccplace { * this may be set to NULL */ struct fsmc_nand_platform_data { + struct fsmc_nand_timings *nand_timings; struct mtd_partition *partitions; unsigned int nr_partitions; unsigned int options; unsigned int width; unsigned int bank; + + /* CLE, ALE offsets */ + unsigned int cle_off; + unsigned int ale_off; + enum access_mode mode; + void (*select_bank)(uint32_t bank, uint32_t busw); + + /* priv structures for dma accesses */ + void *read_dma_priv; + void *write_dma_priv; }; extern int __init fsmc_nor_init(struct platform_device *pdev, diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index d43dc25..cf5ea8c 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -164,6 +164,9 @@ struct mtd_info { /* ECC layout structure pointer - read only! */ struct nand_ecclayout *ecclayout; + /* max number of correctible bit errors per writesize */ + unsigned int ecc_strength; + /* Data for variable erase regions. If numeraseregions is zero, * it means that the whole device has erasesize as given above. */ @@ -174,52 +177,52 @@ struct mtd_info { * Do not call via these pointers, use corresponding mtd_*() * wrappers instead. */ - int (*erase) (struct mtd_info *mtd, struct erase_info *instr); - int (*point) (struct mtd_info *mtd, loff_t from, size_t len, - size_t *retlen, void **virt, resource_size_t *phys); - void (*unpoint) (struct mtd_info *mtd, loff_t from, size_t len); - unsigned long (*get_unmapped_area) (struct mtd_info *mtd, - unsigned long len, - unsigned long offset, - unsigned long flags); - int (*read) (struct mtd_info *mtd, loff_t from, size_t len, - size_t *retlen, u_char *buf); - int (*write) (struct mtd_info *mtd, loff_t to, size_t len, - size_t *retlen, const u_char *buf); - int (*panic_write) (struct mtd_info *mtd, loff_t to, size_t len, - size_t *retlen, const u_char *buf); - int (*read_oob) (struct mtd_info *mtd, loff_t from, - struct mtd_oob_ops *ops); - int (*write_oob) (struct mtd_info *mtd, loff_t to, + int (*_erase) (struct mtd_info *mtd, struct erase_info *instr); + int (*_point) (struct mtd_info *mtd, loff_t from, size_t len, + size_t *retlen, void **virt, resource_size_t *phys); + int (*_unpoint) (struct mtd_info *mtd, loff_t from, size_t len); + unsigned long (*_get_unmapped_area) (struct mtd_info *mtd, + unsigned long len, + unsigned long offset, + unsigned long flags); + int (*_read) (struct mtd_info *mtd, loff_t from, size_t len, + size_t *retlen, u_char *buf); + int (*_write) (struct mtd_info *mtd, loff_t to, size_t len, + size_t *retlen, const u_char *buf); + int (*_panic_write) (struct mtd_info *mtd, loff_t to, size_t len, + size_t *retlen, const u_char *buf); + int (*_read_oob) (struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops); - int (*get_fact_prot_info) (struct mtd_info *mtd, struct otp_info *buf, - size_t len); - int (*read_fact_prot_reg) (struct mtd_info *mtd, loff_t from, - size_t len, size_t *retlen, u_char *buf); - int (*get_user_prot_info) (struct mtd_info *mtd, struct otp_info *buf, - size_t len); - int (*read_user_prot_reg) (struct mtd_info *mtd, loff_t from, - size_t len, size_t *retlen, u_char *buf); - int (*write_user_prot_reg) (struct mtd_info *mtd, loff_t to, size_t len, - size_t *retlen, u_char *buf); - int (*lock_user_prot_reg) (struct mtd_info *mtd, loff_t from, - size_t len); - int (*writev) (struct mtd_info *mtd, const struct kvec *vecs, + int (*_write_oob) (struct mtd_info *mtd, loff_t to, + struct mtd_oob_ops *ops); + int (*_get_fact_prot_info) (struct mtd_info *mtd, struct otp_info *buf, + size_t len); + int (*_read_fact_prot_reg) (struct mtd_info *mtd, loff_t from, + size_t len, size_t *retlen, u_char *buf); + int (*_get_user_prot_info) (struct mtd_info *mtd, struct otp_info *buf, + size_t len); + int (*_read_user_prot_reg) (struct mtd_info *mtd, loff_t from, + size_t len, size_t *retlen, u_char *buf); + int (*_write_user_prot_reg) (struct mtd_info *mtd, loff_t to, + size_t len, size_t *retlen, u_char *buf); + int (*_lock_user_prot_reg) (struct mtd_info *mtd, loff_t from, + size_t len); + int (*_writev) (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, loff_t to, size_t *retlen); - void (*sync) (struct mtd_info *mtd); - int (*lock) (struct mtd_info *mtd, loff_t ofs, uint64_t len); - int (*unlock) (struct mtd_info *mtd, loff_t ofs, uint64_t len); - int (*is_locked) (struct mtd_info *mtd, loff_t ofs, uint64_t len); - int (*block_isbad) (struct mtd_info *mtd, loff_t ofs); - int (*block_markbad) (struct mtd_info *mtd, loff_t ofs); - int (*suspend) (struct mtd_info *mtd); - void (*resume) (struct mtd_info *mtd); + void (*_sync) (struct mtd_info *mtd); + int (*_lock) (struct mtd_info *mtd, loff_t ofs, uint64_t len); + int (*_unlock) (struct mtd_info *mtd, loff_t ofs, uint64_t len); + int (*_is_locked) (struct mtd_info *mtd, loff_t ofs, uint64_t len); + int (*_block_isbad) (struct mtd_info *mtd, loff_t ofs); + int (*_block_markbad) (struct mtd_info *mtd, loff_t ofs); + int (*_suspend) (struct mtd_info *mtd); + void (*_resume) (struct mtd_info *mtd); /* * If the driver is something smart, like UBI, it may need to maintain * its own reference counting. The below functions are only for driver. */ - int (*get_device) (struct mtd_info *mtd); - void (*put_device) (struct mtd_info *mtd); + int (*_get_device) (struct mtd_info *mtd); + void (*_put_device) (struct mtd_info *mtd); /* Backing device capabilities for this device * - provides mmap capabilities @@ -240,214 +243,75 @@ struct mtd_info { int usecount; }; -/* - * Erase is an asynchronous operation. Device drivers are supposed - * to call instr->callback() whenever the operation completes, even - * if it completes with a failure. - * Callers are supposed to pass a callback function and wait for it - * to be called before writing to the block. - */ -static inline int mtd_erase(struct mtd_info *mtd, struct erase_info *instr) -{ - return mtd->erase(mtd, instr); -} - -/* - * This stuff for eXecute-In-Place. phys is optional and may be set to NULL. - */ -static inline int mtd_point(struct mtd_info *mtd, loff_t from, size_t len, - size_t *retlen, void **virt, resource_size_t *phys) -{ - *retlen = 0; - if (!mtd->point) - return -EOPNOTSUPP; - return mtd->point(mtd, from, len, retlen, virt, phys); -} - -/* We probably shouldn't allow XIP if the unpoint isn't a NULL */ -static inline void mtd_unpoint(struct mtd_info *mtd, loff_t from, size_t len) -{ - return mtd->unpoint(mtd, from, len); -} - -/* - * Allow NOMMU mmap() to directly map the device (if not NULL) - * - return the address to which the offset maps - * - return -ENOSYS to indicate refusal to do the mapping - */ -static inline unsigned long mtd_get_unmapped_area(struct mtd_info *mtd, - unsigned long len, - unsigned long offset, - unsigned long flags) -{ - if (!mtd->get_unmapped_area) - return -EOPNOTSUPP; - return mtd->get_unmapped_area(mtd, len, offset, flags); -} - -static inline int mtd_read(struct mtd_info *mtd, loff_t from, size_t len, - size_t *retlen, u_char *buf) -{ - return mtd->read(mtd, from, len, retlen, buf); -} - -static inline int mtd_write(struct mtd_info *mtd, loff_t to, size_t len, - size_t *retlen, const u_char *buf) -{ - *retlen = 0; - if (!mtd->write) - return -EROFS; - return mtd->write(mtd, to, len, retlen, buf); -} - -/* - * In blackbox flight recorder like scenarios we want to make successful writes - * in interrupt context. panic_write() is only intended to be called when its - * known the kernel is about to panic and we need the write to succeed. Since - * the kernel is not going to be running for much longer, this function can - * break locks and delay to ensure the write succeeds (but not sleep). - */ -static inline int mtd_panic_write(struct mtd_info *mtd, loff_t to, size_t len, - size_t *retlen, const u_char *buf) -{ - *retlen = 0; - if (!mtd->panic_write) - return -EOPNOTSUPP; - return mtd->panic_write(mtd, to, len, retlen, buf); -} +int mtd_erase(struct mtd_info *mtd, struct erase_info *instr); +int mtd_point(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, + void **virt, resource_size_t *phys); +int mtd_unpoint(struct mtd_info *mtd, loff_t from, size_t len); +unsigned long mtd_get_unmapped_area(struct mtd_info *mtd, unsigned long len, + unsigned long offset, unsigned long flags); +int mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, + u_char *buf); +int mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, + const u_char *buf); +int mtd_panic_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, + const u_char *buf); static inline int mtd_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops) { ops->retlen = ops->oobretlen = 0; - if (!mtd->read_oob) + if (!mtd->_read_oob) return -EOPNOTSUPP; - return mtd->read_oob(mtd, from, ops); + return mtd->_read_oob(mtd, from, ops); } static inline int mtd_write_oob(struct mtd_info *mtd, loff_t to, struct mtd_oob_ops *ops) { ops->retlen = ops->oobretlen = 0; - if (!mtd->write_oob) - return -EOPNOTSUPP; - return mtd->write_oob(mtd, to, ops); -} - -/* - * Method to access the protection register area, present in some flash - * devices. The user data is one time programmable but the factory data is read - * only. - */ -static inline int mtd_get_fact_prot_info(struct mtd_info *mtd, - struct otp_info *buf, size_t len) -{ - if (!mtd->get_fact_prot_info) + if (!mtd->_write_oob) return -EOPNOTSUPP; - return mtd->get_fact_prot_info(mtd, buf, len); -} - -static inline int mtd_read_fact_prot_reg(struct mtd_info *mtd, loff_t from, - size_t len, size_t *retlen, - u_char *buf) -{ - *retlen = 0; - if (!mtd->read_fact_prot_reg) - return -EOPNOTSUPP; - return mtd->read_fact_prot_reg(mtd, from, len, retlen, buf); -} - -static inline int mtd_get_user_prot_info(struct mtd_info *mtd, - struct otp_info *buf, - size_t len) -{ - if (!mtd->get_user_prot_info) - return -EOPNOTSUPP; - return mtd->get_user_prot_info(mtd, buf, len); -} - -static inline int mtd_read_user_prot_reg(struct mtd_info *mtd, loff_t from, - size_t len, size_t *retlen, - u_char *buf) -{ - *retlen = 0; - if (!mtd->read_user_prot_reg) - return -EOPNOTSUPP; - return mtd->read_user_prot_reg(mtd, from, len, retlen, buf); -} - -static inline int mtd_write_user_prot_reg(struct mtd_info *mtd, loff_t to, - size_t len, size_t *retlen, - u_char *buf) -{ - *retlen = 0; - if (!mtd->write_user_prot_reg) - return -EOPNOTSUPP; - return mtd->write_user_prot_reg(mtd, to, len, retlen, buf); + if (!(mtd->flags & MTD_WRITEABLE)) + return -EROFS; + return mtd->_write_oob(mtd, to, ops); } -static inline int mtd_lock_user_prot_reg(struct mtd_info *mtd, loff_t from, - size_t len) -{ - if (!mtd->lock_user_prot_reg) - return -EOPNOTSUPP; - return mtd->lock_user_prot_reg(mtd, from, len); -} +int mtd_get_fact_prot_info(struct mtd_info *mtd, struct otp_info *buf, + size_t len); +int mtd_read_fact_prot_reg(struct mtd_info *mtd, loff_t from, size_t len, + size_t *retlen, u_char *buf); +int mtd_get_user_prot_info(struct mtd_info *mtd, struct otp_info *buf, + size_t len); +int mtd_read_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len, + size_t *retlen, u_char *buf); +int mtd_write_user_prot_reg(struct mtd_info *mtd, loff_t to, size_t len, + size_t *retlen, u_char *buf); +int mtd_lock_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len); int mtd_writev(struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, loff_t to, size_t *retlen); static inline void mtd_sync(struct mtd_info *mtd) { - if (mtd->sync) - mtd->sync(mtd); -} - -/* Chip-supported device locking */ -static inline int mtd_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) -{ - if (!mtd->lock) - return -EOPNOTSUPP; - return mtd->lock(mtd, ofs, len); + if (mtd->_sync) + mtd->_sync(mtd); } -static inline int mtd_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) -{ - if (!mtd->unlock) - return -EOPNOTSUPP; - return mtd->unlock(mtd, ofs, len); -} - -static inline int mtd_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len) -{ - if (!mtd->is_locked) - return -EOPNOTSUPP; - return mtd->is_locked(mtd, ofs, len); -} +int mtd_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len); +int mtd_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len); +int mtd_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len); +int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs); +int mtd_block_markbad(struct mtd_info *mtd, loff_t ofs); static inline int mtd_suspend(struct mtd_info *mtd) { - return mtd->suspend ? mtd->suspend(mtd) : 0; + return mtd->_suspend ? mtd->_suspend(mtd) : 0; } static inline void mtd_resume(struct mtd_info *mtd) { - if (mtd->resume) - mtd->resume(mtd); -} - -static inline int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs) -{ - if (!mtd->block_isbad) - return 0; - return mtd->block_isbad(mtd, ofs); -} - -static inline int mtd_block_markbad(struct mtd_info *mtd, loff_t ofs) -{ - if (!mtd->block_markbad) - return -EOPNOTSUPP; - return mtd->block_markbad(mtd, ofs); + if (mtd->_resume) + mtd->_resume(mtd); } static inline uint32_t mtd_div_by_eb(uint64_t sz, struct mtd_info *mtd) @@ -482,12 +346,12 @@ static inline uint32_t mtd_mod_by_ws(uint64_t sz, struct mtd_info *mtd) static inline int mtd_has_oob(const struct mtd_info *mtd) { - return mtd->read_oob && mtd->write_oob; + return mtd->_read_oob && mtd->_write_oob; } static inline int mtd_can_have_bb(const struct mtd_info *mtd) { - return !!mtd->block_isbad; + return !!mtd->_block_isbad; } /* Kernel-side ioctl definitions */ diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 63b5a8b..1482340 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -324,6 +324,7 @@ struct nand_hw_control { * @steps: number of ECC steps per page * @size: data bytes per ECC step * @bytes: ECC bytes per step + * @strength: max number of correctible bits per ECC step * @total: total number of ECC bytes per page * @prepad: padding information for syndrome based ECC generators * @postpad: padding information for syndrome based ECC generators @@ -351,6 +352,7 @@ struct nand_ecc_ctrl { int size; int bytes; int total; + int strength; int prepad; int postpad; struct nand_ecclayout *layout; @@ -448,8 +450,9 @@ struct nand_buffers { * will be copied to the appropriate nand_bbt_descr's. * @badblockpos: [INTERN] position of the bad block marker in the oob * area. - * @badblockbits: [INTERN] number of bits to left-shift the bad block - * number + * @badblockbits: [INTERN] minimum number of set bits in a good block's + * bad block marker position; i.e., BBM == 11110111b is + * not bad when badblockbits == 7 * @cellinfo: [INTERN] MLC/multichip data from chip ident * @numchips: [INTERN] number of physical chips * @chipsize: [INTERN] the size of one chip for multichip arrays diff --git a/include/linux/mtd/pmc551.h b/include/linux/mtd/pmc551.h deleted file mode 100644 index 27ad40a..0000000 --- a/include/linux/mtd/pmc551.h +++ /dev/null @@ -1,78 +0,0 @@ -/* - * PMC551 PCI Mezzanine Ram Device - * - * Author: - * Mark Ferrell - * Copyright 1999,2000 Nortel Networks - * - * License: - * As part of this driver was derrived from the slram.c driver it falls - * under the same license, which is GNU General Public License v2 - */ - -#ifndef __MTD_PMC551_H__ -#define __MTD_PMC551_H__ - -#include <linux/mtd/mtd.h> - -#define PMC551_VERSION \ - "Ramix PMC551 PCI Mezzanine Ram Driver. (C) 1999,2000 Nortel Networks.\n" - -/* - * Our personal and private information - */ -struct mypriv { - struct pci_dev *dev; - u_char *start; - u32 base_map0; - u32 curr_map0; - u32 asize; - struct mtd_info *nextpmc551; -}; - -/* - * Function Prototypes - */ -static int pmc551_erase(struct mtd_info *, struct erase_info *); -static void pmc551_unpoint(struct mtd_info *, loff_t, size_t); -static int pmc551_point(struct mtd_info *mtd, loff_t from, size_t len, - size_t *retlen, void **virt, resource_size_t *phys); -static int pmc551_read(struct mtd_info *, loff_t, size_t, size_t *, u_char *); -static int pmc551_write(struct mtd_info *, loff_t, size_t, size_t *, const u_char *); - - -/* - * Define the PCI ID's if the kernel doesn't define them for us - */ -#ifndef PCI_VENDOR_ID_V3_SEMI -#define PCI_VENDOR_ID_V3_SEMI 0x11b0 -#endif - -#ifndef PCI_DEVICE_ID_V3_SEMI_V370PDC -#define PCI_DEVICE_ID_V3_SEMI_V370PDC 0x0200 -#endif - - -#define PMC551_PCI_MEM_MAP0 0x50 -#define PMC551_PCI_MEM_MAP1 0x54 -#define PMC551_PCI_MEM_MAP_MAP_ADDR_MASK 0x3ff00000 -#define PMC551_PCI_MEM_MAP_APERTURE_MASK 0x000000f0 -#define PMC551_PCI_MEM_MAP_REG_EN 0x00000002 -#define PMC551_PCI_MEM_MAP_ENABLE 0x00000001 - -#define PMC551_SDRAM_MA 0x60 -#define PMC551_SDRAM_CMD 0x62 -#define PMC551_DRAM_CFG 0x64 -#define PMC551_SYS_CTRL_REG 0x78 - -#define PMC551_DRAM_BLK0 0x68 -#define PMC551_DRAM_BLK1 0x6c -#define PMC551_DRAM_BLK2 0x70 -#define PMC551_DRAM_BLK3 0x74 -#define PMC551_DRAM_BLK_GET_SIZE(x) (524288<<((x>>4)&0x0f)) -#define PMC551_DRAM_BLK_SET_COL_MUX(x,v) (((x) & ~0x00007000) | (((v) & 0x7) << 12)) -#define PMC551_DRAM_BLK_SET_ROW_MUX(x,v) (((x) & ~0x00000f00) | (((v) & 0xf) << 8)) - - -#endif /* __MTD_PMC551_H__ */ - diff --git a/include/linux/mtd/sh_flctl.h b/include/linux/mtd/sh_flctl.h index 9cf4c4c..a38e1fa 100644 --- a/include/linux/mtd/sh_flctl.h +++ b/include/linux/mtd/sh_flctl.h @@ -23,6 +23,7 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> #include <linux/mtd/partitions.h> +#include <linux/pm_qos.h> /* FLCTL registers */ #define FLCMNCR(f) (f->reg + 0x0) @@ -38,6 +39,7 @@ #define FLDTFIFO(f) (f->reg + 0x24) #define FLECFIFO(f) (f->reg + 0x28) #define FLTRCR(f) (f->reg + 0x2C) +#define FLHOLDCR(f) (f->reg + 0x38) #define FL4ECCRESULT0(f) (f->reg + 0x80) #define FL4ECCRESULT1(f) (f->reg + 0x84) #define FL4ECCRESULT2(f) (f->reg + 0x88) @@ -67,6 +69,30 @@ #define CE0_ENABLE (0x1 << 3) /* Chip Enable 0 */ #define TYPESEL_SET (0x1 << 0) +/* + * Clock settings using the PULSEx registers from FLCMNCR + * + * Some hardware uses bits called PULSEx instead of FCKSEL_E and QTSEL_E + * to control the clock divider used between the High-Speed Peripheral Clock + * and the FLCTL internal clock. If so, use CLK_8_BIT_xxx for connecting 8 bit + * and CLK_16_BIT_xxx for connecting 16 bit bus bandwith NAND chips. For the 16 + * bit version the divider is seperate for the pulse width of high and low + * signals. + */ +#define PULSE3 (0x1 << 27) +#define PULSE2 (0x1 << 17) +#define PULSE1 (0x1 << 15) +#define PULSE0 (0x1 << 9) +#define CLK_8B_0_5 PULSE1 +#define CLK_8B_1 0x0 +#define CLK_8B_1_5 (PULSE1 | PULSE2) +#define CLK_8B_2 PULSE0 +#define CLK_8B_3 (PULSE0 | PULSE1 | PULSE2) +#define CLK_8B_4 (PULSE0 | PULSE2) +#define CLK_16B_6L_2H PULSE0 +#define CLK_16B_9L_3H (PULSE0 | PULSE1 | PULSE2) +#define CLK_16B_12L_4H (PULSE0 | PULSE2) + /* FLCMDCR control bits */ #define ADRCNT2_E (0x1 << 31) /* 5byte address enable */ #define ADRMD_E (0x1 << 26) /* Sector address access */ @@ -85,6 +111,15 @@ #define TRSTRT (0x1 << 0) /* translation start */ #define TREND (0x1 << 1) /* translation end */ +/* + * FLHOLDCR control bits + * + * HOLDEN: Bus Occupancy Enable (inverted) + * Enable this bit when the external bus might be used in between transfers. + * If not set and the bus gets used by other modules, a deadlock occurs. + */ +#define HOLDEN (0x1 << 0) + /* FL4ECCCR control bits */ #define _4ECCFA (0x1 << 2) /* 4 symbols correct fault */ #define _4ECCEND (0x1 << 1) /* 4 symbols end */ @@ -97,6 +132,7 @@ struct sh_flctl { struct mtd_info mtd; struct nand_chip chip; struct platform_device *pdev; + struct dev_pm_qos_request pm_qos; void __iomem *reg; uint8_t done_buff[2048 + 64]; /* max size 2048 + 64 */ @@ -108,11 +144,14 @@ struct sh_flctl { int erase1_page_addr; /* page_addr in ERASE1 cmd */ uint32_t erase_ADRCNT; /* bits of FLCMDCR in ERASE1 cmd */ uint32_t rw_ADRCNT; /* bits of FLCMDCR in READ WRITE cmd */ + uint32_t flcmncr_base; /* base value of FLCMNCR */ int hwecc_cant_correct[4]; unsigned page_size:1; /* NAND page size (0 = 512, 1 = 2048) */ unsigned hwecc:1; /* Hardware ECC (0 = disabled, 1 = enabled) */ + unsigned holden:1; /* Hardware has FLHOLDCR and HOLDEN is set */ + unsigned qos_request:1; /* QoS request to prevent deep power shutdown */ }; struct sh_flctl_platform_data { @@ -121,6 +160,7 @@ struct sh_flctl_platform_data { unsigned long flcmncr_val; unsigned has_hwecc:1; + unsigned use_holden:1; }; static inline struct sh_flctl *mtd_to_flctl(struct mtd_info *mtdinfo) diff --git a/include/linux/mtd/spear_smi.h b/include/linux/mtd/spear_smi.h new file mode 100644 index 0000000..8ae1726 --- /dev/null +++ b/include/linux/mtd/spear_smi.h @@ -0,0 +1,65 @@ +/* + * Copyright © 2010 ST Microelectronics + * Shiraz Hashim <shiraz.hashim@st.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#ifndef __MTD_SPEAR_SMI_H +#define __MTD_SPEAR_SMI_H + +#include <linux/types.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/platform_device.h> +#include <linux/of.h> + +/* max possible slots for serial-nor flash chip in the SMI controller */ +#define MAX_NUM_FLASH_CHIP 4 + +/* macro to define partitions for flash devices */ +#define DEFINE_PARTS(n, of, s) \ +{ \ + .name = n, \ + .offset = of, \ + .size = s, \ +} + +/** + * struct spear_smi_flash_info - platform structure for passing flash + * information + * + * name: name of the serial nor flash for identification + * mem_base: the memory base on which the flash is mapped + * size: size of the flash in bytes + * partitions: parition details + * nr_partitions: number of partitions + * fast_mode: whether flash supports fast mode + */ + +struct spear_smi_flash_info { + char *name; + unsigned long mem_base; + unsigned long size; + struct mtd_partition *partitions; + int nr_partitions; + u8 fast_mode; +}; + +/** + * struct spear_smi_plat_data - platform structure for configuring smi + * + * clk_rate: clk rate at which SMI must operate + * num_flashes: number of flashes present on board + * board_flash_info: specific details of each flash present on board + */ +struct spear_smi_plat_data { + unsigned long clk_rate; + int num_flashes; + struct spear_smi_flash_info *board_flash_info; + struct device_node *np[MAX_NUM_FLASH_CHIP]; +}; + +#endif /* __MTD_SPEAR_SMI_H */ |
