diff options
| author | Chuanhong Guo <gch981213@gmail.com> | 2022-04-24 06:25:23 +0300 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2022-04-27 19:12:35 +0300 |
| commit | 4fd62f15afa0d0da4823f429a2fb4c3492a84edf (patch) | |
| tree | 0fbeda826263f0626aabbed36b7a31d24ea2e67b /include/linux/mtd | |
| parent | 3123109284176b1532874591f7c81f3837bbdc17 (diff) | |
| download | linux-4fd62f15afa0d0da4823f429a2fb4c3492a84edf.tar.xz | |
mtd: nand: make mtk_ecc.c a separated module
this code will be used in mediatek snfi spi-mem controller with
pipelined ECC engine.
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220424032527.673605-2-gch981213@gmail.com
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/nand-ecc-mtk.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/include/linux/mtd/nand-ecc-mtk.h b/include/linux/mtd/nand-ecc-mtk.h new file mode 100644 index 000000000000..0e48c36e6ca0 --- /dev/null +++ b/include/linux/mtd/nand-ecc-mtk.h @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0 OR MIT */ +/* + * MTK SDG1 ECC controller + * + * Copyright (c) 2016 Mediatek + * Authors: Xiaolei Li <xiaolei.li@mediatek.com> + * Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org> + */ + +#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 |