/* * MTK SDG1 ECC controller * * Copyright (c) 2016 Mediatek * Authors: Xiaolei Li <xiaolei.li@mediatek.com> * Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org> * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation. */ #ifndef __DRIVERS_MTD_NAND_MTK_ECC_H__ #define __DRIVERS_MTD_NAND_MTK_ECC_H__ #include <linux/types.h> enum mtk_ecc_mode {ECC_DMA_MODE = 0, ECC_NFI_MODE = 1}; enum mtk_ecc_operation {ECC_ENCODE, ECC_DECODE}; struct device_node; struct mtk_ecc; struct mtk_ecc_stats { u32 corrected; u32 bitflips; u32 failed; }; struct mtk_ecc_config { enum mtk_ecc_operation op; enum mtk_ecc_mode mode; dma_addr_t addr; u32 strength; u32 sectors; u32 len; }; int mtk_ecc_encode(struct mtk_ecc *, struct mtk_ecc_config *, u8 *, u32); void mtk_ecc_get_stats(struct mtk_ecc *, struct mtk_ecc_stats *, int); int mtk_ecc_wait_done(struct mtk_ecc *, enum mtk_ecc_operation); int mtk_ecc_enable(struct mtk_ecc *, struct mtk_ecc_config *); void mtk_ecc_disable(struct mtk_ecc *); void mtk_ecc_adjust_strength(struct mtk_ecc *ecc, u32 *p); unsigned int mtk_ecc_get_parity_bits(struct mtk_ecc *ecc); struct mtk_ecc *of_mtk_ecc_get(struct device_node *); void mtk_ecc_release(struct mtk_ecc *); #endif