74 lines
2.0 KiB
C
74 lines
2.0 KiB
C
/**
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* @file
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* @brief This file contains exported structure for NAND
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*
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* OMAP's General Purpose Memory Controller (GPMC) has a NAND controller
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* embedded. this file provides the platform data structure required to
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* hook on to it.
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*
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* (C) Copyright 2008
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* Texas Instruments, <www.ti.com>
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* Nishanth Menon <x0nishan@ti.com>
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*
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* Originally from Linux kernel:
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* http://linux.omap.com/pub/kernel/3430zoom/linux-ldp-v1.3.tar.gz
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* include/asm-arm/arch-omap/nand.h
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*
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* Copyright (C) 2006 Micron Technology Inc.
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* Author: Shahrom Sharif-Kashani
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __ASM_OMAP_NAND_GPMC_H
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#define __ASM_OMAP_NAND_GPMC_H
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/nand.h>
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#include <linux/mtd/nand_ecc.h>
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enum gpmc_ecc_mode {
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OMAP_ECC_SOFT,
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OMAP_ECC_HAMMING_CODE_HW_ROMCODE,
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OMAP_ECC_BCH4_CODE_HW,
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OMAP_ECC_BCH8_CODE_HW,
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OMAP_ECC_BCH8_CODE_HW_ROMCODE,
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};
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/** omap nand platform data structure */
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struct gpmc_nand_platform_data {
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/** Chip select you want to use */
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int cs;
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struct mtd_partition *parts;
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int nr_parts;
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/** If there are any special setups you'd want to do */
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int (*nand_setup) (struct gpmc_nand_platform_data *);
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/** ecc mode to use */
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enum gpmc_ecc_mode ecc_mode;
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/** setup any special options */
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unsigned int options;
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/** set up device access as 8,16 as per GPMC config */
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char device_width;
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/** Set this to WAITx+1, so GPMC WAIT0 will be 1 and so on. */
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char wait_mon_pin;
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/* if you like a custom oob use this. */
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struct nand_ecclayout *oob;
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/** gpmc config for nand */
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struct gpmc_config *nand_cfg;
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struct device_node *of_node;
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struct device_node *elm_of_node;
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};
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int omap_add_gpmc_nand_device(struct gpmc_nand_platform_data *pdata);
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extern struct gpmc_config omap3_nand_cfg;
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extern struct gpmc_config omap4_nand_cfg;
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extern struct gpmc_config am33xx_nand_cfg;
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#endif /* __ASM_OMAP_NAND_GPMC_H */
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