76 lines
2.0 KiB
C
76 lines
2.0 KiB
C
/**
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* @file
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* @brief GPMC specific NAND devices
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*
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* FileName: arch/arm/boards/omap/devices-gpmc-nand.c
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*
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*/
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/*
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* (C) Copyright 2006-2008
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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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (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
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <console.h>
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#include <init.h>
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#include <driver.h>
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#include <clock.h>
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#include <io.h>
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#include <mach/silicon.h>
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#include <mach/gpmc.h>
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#include <mach/gpmc_nand.h>
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#define GPMC_CONF1_VALx8 0x00000800
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#define GPMC_CONF1_VALx16 0x00001800
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/** NAND platform specific settings settings */
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static struct gpmc_nand_platform_data nand_plat = {
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.cs = 0,
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.max_timeout = MSECOND,
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.wait_mon_pin = 0,
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};
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/**
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* @brief gpmc_generic_nand_devices_init - init generic nand device
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*
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* @return success/fail based on device function
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*/
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int gpmc_generic_nand_devices_init(int cs, int width,
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enum gpmc_ecc_mode eccmode, struct gpmc_config *nand_cfg)
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{
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nand_plat.cs = cs;
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if (width == 16)
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nand_cfg->cfg[0] = GPMC_CONF1_VALx16;
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else
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nand_cfg->cfg[0] = GPMC_CONF1_VALx8;
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nand_plat.device_width = width;
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nand_plat.ecc_mode = eccmode;
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nand_plat.priv = nand_cfg;
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/* Configure GPMC CS before register */
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gpmc_cs_config(nand_plat.cs, nand_cfg);
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add_generic_device("gpmc_nand", DEVICE_ID_DYNAMIC, NULL, OMAP_GPMC_BASE,
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1024 * 4, IORESOURCE_MEM, &nand_plat);
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return 0;
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}
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