forked from Minki/linux
7ec4a37c5d
ECC strength and spare size supported may be different among MTK NAND FLASH Controller IPs. This patch contains changes as following: (1) add new struct mtk_nfc_caps to support different spare size. (2) add new struct mtk_ecc_caps to support different ecc strength. (3) remove ECC_CNFG_xBIT define, use a for loop to do ecc strength config. (4) remove PAGEFMT_SPARE_ define, use a for loop to do spare format config. (5) malloc ecc->eccdata buffer according to max ecc strength of this IP. Signed-off-by: Xiaolei Li <xiaolei.li@mediatek.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/*
|
|
* 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>
|
|
|
|
#define ECC_PARITY_BITS (14)
|
|
|
|
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);
|
|
|
|
struct mtk_ecc *of_mtk_ecc_get(struct device_node *);
|
|
void mtk_ecc_release(struct mtk_ecc *);
|
|
|
|
#endif
|