34 lines
749 B
C
34 lines
749 B
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* linux/arch/arm/mach-omap1/board-nand.c
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*
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* Common OMAP1 board NAND code
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*
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* Copyright (C) 2004, 2012 Texas Instruments, Inc.
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* Copyright (C) 2002 MontaVista Software, Inc.
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* Copyright (C) 2001 RidgeRun, Inc.
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* Author: RidgeRun, Inc.
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* Greg Lonnon (glonnon@ridgerun.com) or info@ridgerun.com
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*/
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#include <linux/kernel.h>
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#include <linux/io.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/rawnand.h>
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#include "common.h"
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void omap1_nand_cmd_ctl(struct nand_chip *this, int cmd, unsigned int ctrl)
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{
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unsigned long mask;
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if (cmd == NAND_CMD_NONE)
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return;
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mask = (ctrl & NAND_CLE) ? 0x02 : 0;
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if (ctrl & NAND_ALE)
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mask |= 0x04;
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writeb(cmd, this->legacy.IO_ADDR_W + mask);
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}
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