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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
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2 | /* |
3 | * linux/arch/arm/mach-omap1/board-nand.c | |
4 | * | |
5 | * Common OMAP1 board NAND code | |
6 | * | |
7 | * Copyright (C) 2004, 2012 Texas Instruments, Inc. | |
8 | * Copyright (C) 2002 MontaVista Software, Inc. | |
9 | * Copyright (C) 2001 RidgeRun, Inc. | |
10 | * Author: RidgeRun, Inc. | |
11 | * Greg Lonnon (glonnon@ridgerun.com) or info@ridgerun.com | |
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12 | */ |
13 | #include <linux/kernel.h> | |
14 | #include <linux/io.h> | |
15 | #include <linux/mtd/mtd.h> | |
d4092d76 | 16 | #include <linux/mtd/rawnand.h> |
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17 | |
18 | #include "common.h" | |
19 | ||
47bd59e5 | 20 | void omap1_nand_cmd_ctl(struct nand_chip *this, int cmd, unsigned int ctrl) |
31cde044 | 21 | { |
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22 | unsigned long mask; |
23 | ||
24 | if (cmd == NAND_CMD_NONE) | |
25 | return; | |
26 | ||
27 | mask = (ctrl & NAND_CLE) ? 0x02 : 0; | |
28 | if (ctrl & NAND_ALE) | |
29 | mask |= 0x04; | |
30 | ||
82fc5099 | 31 | writeb(cmd, this->legacy.IO_ADDR_W + mask); |
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32 | } |
33 |