/* * (C) Copyright 2005 2N TELEKOMUNIKACE, Ladislav Michl * * See file CREDITS for list of people who contributed to this * project. * * 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., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include <common.h> #include <asm/io.h> #if defined(CONFIG_CMD_NAND) #include <nand.h> /* * hardware specific access to control-lines */ #define MASK_CLE 0x02 #define MASK_ALE 0x04 static void netstar_nand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct nand_chip *this = mtd->priv; ulong IO_ADDR_W = (ulong) this->IO_ADDR_W; IO_ADDR_W &= ~(MASK_ALE|MASK_CLE); if (ctrl & NAND_CTRL_CHANGE) { if ( ctrl & NAND_CLE ) IO_ADDR_W |= MASK_CLE; if ( ctrl & NAND_ALE ) IO_ADDR_W |= MASK_ALE; } this->IO_ADDR_W = (void __iomem *) IO_ADDR_W; if (cmd != NAND_CMD_NONE) writeb(cmd, this->IO_ADDR_W); } int board_nand_init(struct nand_chip *nand) { nand->options = NAND_SAMSUNG_LP_OPTIONS; nand->ecc.mode = NAND_ECC_SOFT; nand->cmd_ctrl = netstar_nand_hwcontrol; nand->chip_delay = 400; return 0; } #endif