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/*
* Copyright (C) 2011-2012 Freescale Semiconductor, Inc. All Rights Reserved.
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __MACH_MXS_GPMI_NAND_H__
#define __MACH_MXS_GPMI_NAND_H__
/* The size of the resources is fixed. */
#define GPMI_NAND_RES_SIZE 6
/* Resource names for the GPMI NAND driver. */
#define GPMI_NAND_GPMI_REGS_ADDR_RES_NAME "GPMI NAND GPMI Registers"
#define GPMI_NAND_GPMI_INTERRUPT_RES_NAME "GPMI NAND GPMI Interrupt"
#define GPMI_NAND_BCH_REGS_ADDR_RES_NAME "GPMI NAND BCH Registers"
#define GPMI_NAND_BCH_INTERRUPT_RES_NAME "GPMI NAND BCH Interrupt"
#define GPMI_NAND_DMA_CHANNELS_RES_NAME "GPMI NAND DMA Channels"
#define GPMI_NAND_DMA_INTERRUPT_RES_NAME "GPMI NAND DMA Interrupt"
/**
* struct gpmi_nand_platform_data - GPMI NAND driver platform data.
*
* This structure communicates platform-specific information to the GPMI NAND
* driver that can't be expressed as resources.
*
* @platform_init: A pointer to a function the driver will call to
* initialize the platform (e.g., set up the pin mux).
* @min_prop_delay_in_ns: Minimum propagation delay of GPMI signals to and
* from the NAND Flash device, in nanoseconds.
* @max_prop_delay_in_ns: Maximum propagation delay of GPMI signals to and
* from the NAND Flash device, in nanoseconds.
* @max_chip_count: The maximum number of chips for which the driver
* should configure the hardware. This value most
* likely reflects the number of pins that are
* connected to a NAND Flash device. If this is
* greater than the SoC hardware can support, the
* driver will print a message and fail to initialize.
* @partitions: An optional pointer to an array of partition
* descriptions.
* @partition_count: The number of elements in the partitions array.
* @enable_bbt: Enable the BBT or not.
*/
struct gpmi_nand_platform_data {
/* SoC hardware information. */
int (*platform_init)(void);
/* NAND Flash information. */
unsigned int min_prop_delay_in_ns;
unsigned int max_prop_delay_in_ns;
unsigned int max_chip_count;
/* Medium information. */
struct mtd_partition *partitions;
unsigned partition_count;
unsigned int enable_bbt:1;
unsigned int enable_ddr:1;
};
#endif
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