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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2006 Micron Technology Inc.
*/
#ifndef _MTD_NAND_OMAP2_H
#define _MTD_NAND_OMAP2_H
#include <linux/mtd/partitions.h>
#define GPMC_BCH_NUM_REMAINDER 8
enum nand_io {
NAND_OMAP_PREFETCH_POLLED = 0, /* prefetch polled mode, default */
NAND_OMAP_POLLED, /* polled mode, without prefetch */
NAND_OMAP_PREFETCH_DMA, /* prefetch enabled sDMA mode */
NAND_OMAP_PREFETCH_IRQ /* prefetch enabled irq mode */
};
enum omap_ecc {
/*
* 1-bit ECC: calculation and correction by SW
* ECC stored at end of spare area
*/
OMAP_ECC_HAM1_CODE_SW = 0,
/*
* 1-bit ECC: calculation by GPMC, Error detection by Software
* ECC layout compatible with ROM code layout
*/
OMAP_ECC_HAM1_CODE_HW,
/* 4-bit ECC calculation by GPMC, Error detection by Software */
OMAP_ECC_BCH4_CODE_HW_DETECTION_SW,
/* 4-bit ECC calculation by GPMC, Error detection by ELM */
OMAP_ECC_BCH4_CODE_HW,
/* 8-bit ECC calculation by GPMC, Error detection by Software */
OMAP_ECC_BCH8_CODE_HW_DETECTION_SW,
/* 8-bit ECC calculation by GPMC, Error detection by ELM */
OMAP_ECC_BCH8_CODE_HW,
/* 16-bit ECC calculation by GPMC, Error detection by ELM */
OMAP_ECC_BCH16_CODE_HW,
};
struct gpmc_nand_regs {
void __iomem *gpmc_nand_command;
void __iomem *gpmc_nand_address;
void __iomem *gpmc_nand_data;
void __iomem *gpmc_prefetch_config1;
void __iomem *gpmc_prefetch_config2;
void __iomem *gpmc_prefetch_control;
void __iomem *gpmc_prefetch_status;
void __iomem *gpmc_ecc_config;
void __iomem *gpmc_ecc_control;
void __iomem *gpmc_ecc_size_config;
void __iomem *gpmc_ecc1_result;
void __iomem *gpmc_bch_result0[GPMC_BCH_NUM_REMAINDER];
void __iomem *gpmc_bch_result1[GPMC_BCH_NUM_REMAINDER];
void __iomem *gpmc_bch_result2[GPMC_BCH_NUM_REMAINDER];
void __iomem *gpmc_bch_result3[GPMC_BCH_NUM_REMAINDER];
void __iomem *gpmc_bch_result4[GPMC_BCH_NUM_REMAINDER];
void __iomem *gpmc_bch_result5[GPMC_BCH_NUM_REMAINDER];
void __iomem *gpmc_bch_result6[GPMC_BCH_NUM_REMAINDER];
};
#endif