69 lines
3.0 KiB
C
69 lines
3.0 KiB
C
/*
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* Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __MACH_MXS_GPMI_NAND_H__
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#define __MACH_MXS_GPMI_NAND_H__
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/* The size of the resources is fixed. */
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#define GPMI_NAND_RES_SIZE 6
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/* Resource names for the GPMI NAND driver. */
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#define GPMI_NAND_GPMI_REGS_ADDR_RES_NAME "GPMI NAND GPMI Registers"
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#define GPMI_NAND_GPMI_INTERRUPT_RES_NAME "GPMI NAND GPMI Interrupt"
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#define GPMI_NAND_BCH_REGS_ADDR_RES_NAME "GPMI NAND BCH Registers"
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#define GPMI_NAND_BCH_INTERRUPT_RES_NAME "GPMI NAND BCH Interrupt"
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#define GPMI_NAND_DMA_CHANNELS_RES_NAME "GPMI NAND DMA Channels"
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#define GPMI_NAND_DMA_INTERRUPT_RES_NAME "GPMI NAND DMA Interrupt"
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/**
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* struct gpmi_nand_platform_data - GPMI NAND driver platform data.
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*
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* This structure communicates platform-specific information to the GPMI NAND
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* driver that can't be expressed as resources.
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*
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* @platform_init: A pointer to a function the driver will call to
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* initialize the platform (e.g., set up the pin mux).
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* @min_prop_delay_in_ns: Minimum propagation delay of GPMI signals to and
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* from the NAND Flash device, in nanoseconds.
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* @max_prop_delay_in_ns: Maximum propagation delay of GPMI signals to and
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* from the NAND Flash device, in nanoseconds.
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* @max_chip_count: The maximum number of chips for which the driver
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* should configure the hardware. This value most
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* likely reflects the number of pins that are
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* connected to a NAND Flash device. If this is
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* greater than the SoC hardware can support, the
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* driver will print a message and fail to initialize.
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* @partitions: An optional pointer to an array of partition
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* descriptions.
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* @partition_count: The number of elements in the partitions array.
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*/
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struct gpmi_nand_platform_data {
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/* SoC hardware information. */
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int (*platform_init)(void);
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/* NAND Flash information. */
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unsigned int min_prop_delay_in_ns;
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unsigned int max_prop_delay_in_ns;
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unsigned int max_chip_count;
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/* Medium information. */
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struct mtd_partition *partitions;
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unsigned partition_count;
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};
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#endif
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