Release 4.12 include/linux/platform_data/mtd-nand-omap2.h

/*
 * Copyright (C) 2006 Micron Technology Inc.
 *
 * 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	_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];
	/* Deprecated. Do not use */
	
void __iomem	*gpmc_status;
};


struct omap_nand_platform_data {
	
int			cs;
	
struct mtd_partition	*parts;
	
int			nr_parts;
	
bool			flash_bbt;
	
enum nand_io		xfer_type;
	
int			devsize;
	
enum omap_ecc           ecc_opt;

	
struct device_node	*elm_of_node;

	/* deprecated */
	
struct gpmc_nand_regs	reg;
	
struct device_node	*of_node;
	
bool			dev_ready;
};
#endif
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