diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bcma/bcma_driver_chipcommon.h | 1 | ||||
| -rw-r--r-- | include/linux/mtd/map.h | 9 | ||||
| -rw-r--r-- | include/linux/platform_data/elm.h | 54 |
3 files changed, 62 insertions, 2 deletions
diff --git a/include/linux/bcma/bcma_driver_chipcommon.h b/include/linux/bcma/bcma_driver_chipcommon.h index 1d002b58b60b..8390c474f69a 100644 --- a/include/linux/bcma/bcma_driver_chipcommon.h +++ b/include/linux/bcma/bcma_driver_chipcommon.h @@ -528,6 +528,7 @@ struct bcma_sflash { u32 size; struct mtd_info *mtd; + void *priv; }; #endif diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h index f6eb4332ac92..4b02512e421c 100644 --- a/include/linux/mtd/map.h +++ b/include/linux/mtd/map.h @@ -245,6 +245,7 @@ struct map_info { unsigned long pfow_base; unsigned long map_priv_1; unsigned long map_priv_2; + struct device_node *device_node; void *fldrv_priv; struct mtd_chip_driver *fldrv; }; @@ -328,7 +329,7 @@ static inline int map_word_bitsset(struct map_info *map, map_word val1, map_word static inline map_word map_word_load(struct map_info *map, const void *ptr) { - map_word r = {{0} }; + map_word r; if (map_bankwidth_is_1(map)) r.x[0] = *(unsigned char *)ptr; @@ -342,6 +343,8 @@ static inline map_word map_word_load(struct map_info *map, const void *ptr) #endif else if (map_bankwidth_is_large(map)) memcpy(r.x, ptr, map->bankwidth); + else + BUG(); return r; } @@ -391,7 +394,7 @@ static inline map_word map_word_ff(struct map_info *map) static inline map_word inline_map_read(struct map_info *map, unsigned long ofs) { - map_word uninitialized_var(r); + map_word r; if (map_bankwidth_is_1(map)) r.x[0] = __raw_readb(map->virt + ofs); @@ -425,6 +428,8 @@ static inline void inline_map_write(struct map_info *map, const map_word datum, #endif else if (map_bankwidth_is_large(map)) memcpy_toio(map->virt+ofs, datum.x, map->bankwidth); + else + BUG(); mb(); } diff --git a/include/linux/platform_data/elm.h b/include/linux/platform_data/elm.h new file mode 100644 index 000000000000..1bd5244d1dcd --- /dev/null +++ b/include/linux/platform_data/elm.h @@ -0,0 +1,54 @@ +/* + * BCH Error Location Module + * + * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __ELM_H +#define __ELM_H + +enum bch_ecc { + BCH4_ECC = 0, + BCH8_ECC, +}; + +/* ELM support 8 error syndrome process */ +#define ERROR_VECTOR_MAX 8 + +#define BCH8_ECC_OOB_BYTES 13 +#define BCH4_ECC_OOB_BYTES 7 +/* RBL requires 14 byte even though BCH8 uses only 13 byte */ +#define BCH8_SIZE (BCH8_ECC_OOB_BYTES + 1) +/* Uses 1 extra byte to handle erased pages */ +#define BCH4_SIZE (BCH4_ECC_OOB_BYTES + 1) + +/** + * struct elm_errorvec - error vector for elm + * @error_reported: set true for vectors error is reported + * @error_uncorrectable: number of uncorrectable errors + * @error_count: number of correctable errors in the sector + * @error_loc: buffer for error location + * + */ +struct elm_errorvec { + bool error_reported; + bool error_uncorrectable; + int error_count; + int error_loc[ERROR_VECTOR_MAX]; +}; + +void elm_decode_bch_error_page(struct device *dev, u8 *ecc_calc, + struct elm_errorvec *err_vec); +void elm_config(struct device *dev, enum bch_ecc bch_type); +#endif /* __ELM_H */ |