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// SPDX-License-Identifier: GPL-2.0-only
/*
* 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
*/
#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 nand_chip *this, int cmd, unsigned int ctrl)
{
unsigned long mask;
if (cmd == NAND_CMD_NONE)
return;
mask = (ctrl & NAND_CLE) ? 0x02 : 0;
if (ctrl & NAND_ALE)
mask |= 0x04;
writeb(cmd, this->legacy.IO_ADDR_W + mask);
}
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