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33 lines
749 B
33 lines
749 B
// 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 ([email protected]) or [email protected] |
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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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