diff options
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/chips/cfi_cmdset_0002.c | 44 |
1 files changed, 34 insertions, 10 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index 54825083fd14..612eb3d6902c 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -1152,11 +1152,42 @@ static int cfi_amdstd_read (struct mtd_info *mtd, loff_t from, size_t len, size_ typedef int (*otp_op_t)(struct map_info *map, struct flchip *chip, loff_t adr, size_t len, u_char *buf); +static inline void otp_enter(struct map_info *map, struct flchip *chip, + loff_t adr, size_t len) +{ + struct cfi_private *cfi = map->fldrv_priv; + + 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(0x88, cfi->addr_unlock1, chip->start, map, cfi, + cfi->device_type, NULL); + + INVALIDATE_CACHED_RANGE(map, chip->start + adr, len); +} + +static inline void otp_exit(struct map_info *map, struct flchip *chip, + loff_t adr, size_t len) +{ + struct cfi_private *cfi = map->fldrv_priv; + + 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(0x90, cfi->addr_unlock1, chip->start, map, cfi, + cfi->device_type, NULL); + cfi_send_gen_cmd(0x00, cfi->addr_unlock1, chip->start, map, cfi, + cfi->device_type, NULL); + + INVALIDATE_CACHED_RANGE(map, chip->start + adr, len); +} + static inline int do_read_secsi_onechip(struct map_info *map, struct flchip *chip, loff_t adr, size_t len, u_char *buf) { DECLARE_WAITQUEUE(wait, current); unsigned long timeo = jiffies + HZ; - struct cfi_private *cfi = map->fldrv_priv; retry: mutex_lock(&chip->mutex); @@ -1178,16 +1209,9 @@ static inline int do_read_secsi_onechip(struct map_info *map, struct flchip *chi chip->state = FL_READY; - 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(0x88, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL); - + otp_enter(map, chip, adr, len); map_copy_from(map, buf, 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(0x90, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL); - cfi_send_gen_cmd(0x00, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL); + otp_exit(map, chip, adr, len); wake_up(&chip->wq); mutex_unlock(&chip->mutex); |