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Viewing File: /usr/src/kernels/5.14.0-570.32.1.el9_6.x86_64/include/linux/platform_data/mtd-nand-omap2.h

/* 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
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