/* * linux/arch/arm/mach-omap1/board-nand.c * * Common OMAP1 board NAND code * * Copyright (C) 2004, 2012 Texas Instruments, Inc. * Copyright (C) 2002 MontaVista Software, Inc. * Copyright (C) 2001 RidgeRun, Inc. * Author: RidgeRun, Inc. * Greg Lonnon (glonnon@ridgerun.com) or info@ridgerun.com * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/kernel.h> #include <linux/io.h> #include <linux/mtd/mtd.h> #include <linux/mtd/rawnand.h> #include "common.h" void omap1_nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct nand_chip *this = mtd_to_nand(mtd); unsigned long mask; if (cmd == NAND_CMD_NONE) return; mask = (ctrl & NAND_CLE) ? 0x02 : 0; if (ctrl & NAND_ALE) mask |= 0x04; writeb(cmd, this->IO_ADDR_W + mask); }