diff options
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/mtd/mtd-abi.h | 2 | ||||
-rw-r--r-- | include/mtd/mtd-peb.h | 2 | ||||
-rw-r--r-- | include/platform_data/elm.h | 53 |
3 files changed, 56 insertions, 1 deletions
diff --git a/include/linux/mtd/mtd-abi.h b/include/linux/mtd/mtd-abi.h index 9bca9b5e06..dfcb3554fb 100644 --- a/include/linux/mtd/mtd-abi.h +++ b/include/linux/mtd/mtd-abi.h @@ -137,7 +137,7 @@ struct nand_oobfree { }; #define MTD_MAX_OOBFREE_ENTRIES_LARGE 32 -#define MTD_MAX_ECCPOS_ENTRIES_LARGE 128 /* FIXME : understand why 448 is not working */ +#define MTD_MAX_ECCPOS_ENTRIES_LARGE 640 /* * ECC layout control structure. Exported to userspace for * diagnosis and to allow creation of raw images diff --git a/include/mtd/mtd-peb.h b/include/mtd/mtd-peb.h index 23f89d89a8..311f25c3df 100644 --- a/include/mtd/mtd-peb.h +++ b/include/mtd/mtd-peb.h @@ -21,5 +21,7 @@ int mtd_num_pebs(struct mtd_info *mtd); int mtd_peb_create_bitflips(struct mtd_info *mtd, int pnum, int offset, int len, int num_bitflips, int random, int info); +int mtd_peb_write_file(struct mtd_info *mtd, int peb_start, int max_pebs, + const void *buf, size_t len); #endif /* __LINUX_MTD_MTDPEB_H */ diff --git a/include/platform_data/elm.h b/include/platform_data/elm.h new file mode 100644 index 0000000000..bc5d2edb1d --- /dev/null +++ b/include/platform_data/elm.h @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * BCH Error Location Module + * + * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ + */ + +#ifndef __ELM_H +#define __ELM_H + +enum bch_ecc { + BCH4_ECC = 0, + BCH8_ECC, + BCH16_ECC, +}; + +/* ELM support 8 error syndrome process */ +#define ERROR_VECTOR_MAX 8 + +/** + * 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[16]; +}; + +#if IS_ENABLED(CONFIG_MTD_NAND_OMAP_ELM) +int elm_decode_bch_error_page(u8 *ecc_calc, struct elm_errorvec *err_vec); +int elm_config(enum bch_ecc bch_type, int ecc_steps, int ecc_step_size, + int ecc_syndrome_size); +#else +static inline int +elm_decode_bch_error_page(u8 *ecc_calc, struct elm_errorvec *err_vec) +{ + return -ENODEV; +} + +static inline int elm_config(enum bch_ecc bch_type, int ecc_steps, + int ecc_step_size, int ecc_syndrome_size) +{ + return -ENOSYS; +} +#endif /* CONFIG_MTD_NAND_OMAP_ELM */ + +#endif /* __ELM_H */ |