2 * MTK SDG1 ECC controller
4 * Copyright (c) 2016 Mediatek
5 * Authors: Xiaolei Li <xiaolei.li@mediatek.com>
6 * Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 as published
9 * by the Free Software Foundation.
12 #ifndef __DRIVERS_MTD_NAND_MTK_ECC_H__
13 #define __DRIVERS_MTD_NAND_MTK_ECC_H__
15 #include <linux/types.h>
17 #define ECC_PARITY_BITS (14)
19 enum mtk_ecc_mode {ECC_DMA_MODE = 0, ECC_NFI_MODE = 1};
20 enum mtk_ecc_operation {ECC_ENCODE, ECC_DECODE};
25 struct mtk_ecc_stats {
31 struct mtk_ecc_config {
32 enum mtk_ecc_operation op;
33 enum mtk_ecc_mode mode;
40 int mtk_ecc_encode(struct mtk_ecc *, struct mtk_ecc_config *, u8 *, u32);
41 void mtk_ecc_get_stats(struct mtk_ecc *, struct mtk_ecc_stats *, int);
42 int mtk_ecc_wait_done(struct mtk_ecc *, enum mtk_ecc_operation);
43 int mtk_ecc_enable(struct mtk_ecc *, struct mtk_ecc_config *);
44 void mtk_ecc_disable(struct mtk_ecc *);
45 void mtk_ecc_adjust_strength(struct mtk_ecc *ecc, u32 *p);
47 struct mtk_ecc *of_mtk_ecc_get(struct device_node *);
48 void mtk_ecc_release(struct mtk_ecc *);