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/*
* mach-davinci/nand.h
*
* Copyright © 2006 Texas Instruments.
*
* Ported to 2.6.23 Copyright © 2008 by
* Sander Huijsen <Shuijsen@optelecom-nkf.com>
* Troy Kisky <troy.kisky@boundarydevices.com>
* Dirk Behme <Dirk.Behme@gmail.com>
*
* --------------------------------------------------------------------------
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __ARCH_ARM_DAVINCI_NAND_H
#define __ARCH_ARM_DAVINCI_NAND_H
#include <linux/mtd/nand.h>
#define NANDFCR_OFFSET 0x60
#define NANDFSR_OFFSET 0x64
#define NANDF1ECC_OFFSET 0x70
/* 4-bit ECC syndrome registers */
#define NAND_4BIT_ECC_LOAD_OFFSET 0xbc
#define NAND_4BIT_ECC1_OFFSET 0xc0
#define NAND_4BIT_ECC2_OFFSET 0xc4
#define NAND_4BIT_ECC3_OFFSET 0xc8
#define NAND_4BIT_ECC4_OFFSET 0xcc
#define NAND_ERR_ADD1_OFFSET 0xd0
#define NAND_ERR_ADD2_OFFSET 0xd4
#define NAND_ERR_ERRVAL1_OFFSET 0xd8
#define NAND_ERR_ERRVAL2_OFFSET 0xdc
/* NOTE: boards don't need to use these address bits
* for ALE/CLE unless they support booting from NAND.
* They're used unless platform data overrides them.
*/
#define MASK_ALE 0x08
#define MASK_CLE 0x10
struct davinci_nand_pdata { /* platform_data */
uint32_t mask_ale;
uint32_t mask_cle;
/* for packages using two chipselects */
uint32_t mask_chipsel;
/* board's default static partition info */
struct mtd_partition *parts;
unsigned nr_parts;
/* none == NAND_ECC_NONE (strongly *not* advised!!)
* soft == NAND_ECC_SOFT
* else == NAND_ECC_HW, according to ecc_bits
*
* All DaVinci-family chips support 1-bit hardware ECC.
* Newer ones also support 4-bit ECC, but are awkward
* using it with large page chips.
*/
nand_ecc_modes_t ecc_mode;
u8 ecc_bits;
/* e.g. NAND_BUSWIDTH_16 */
unsigned options;
/* e.g. NAND_BBT_USE_FLASH */
unsigned bbt_options;
/* Main and mirror bbt descriptor overrides */
struct nand_bbt_descr *bbt_td;
struct nand_bbt_descr *bbt_md;
/* Access timings */
struct davinci_aemif_timing *timing;
};
#endif /* __ARCH_ARM_DAVINCI_NAND_H */