diff options
Diffstat (limited to 'arch/arm/mach-omap1/board-nand.c')
-rw-r--r-- | arch/arm/mach-omap1/board-nand.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm/mach-omap1/board-nand.c b/arch/arm/mach-omap1/board-nand.c new file mode 100644 index 000000000000..4d0835327d20 --- /dev/null +++ b/arch/arm/mach-omap1/board-nand.c | |||
@@ -0,0 +1,37 @@ | |||
1 | /* | ||
2 | * linux/arch/arm/mach-omap1/board-nand.c | ||
3 | * | ||
4 | * Common OMAP1 board NAND code | ||
5 | * | ||
6 | * Copyright (C) 2004, 2012 Texas Instruments, Inc. | ||
7 | * Copyright (C) 2002 MontaVista Software, Inc. | ||
8 | * Copyright (C) 2001 RidgeRun, Inc. | ||
9 | * Author: RidgeRun, Inc. | ||
10 | * Greg Lonnon (glonnon@ridgerun.com) or info@ridgerun.com | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or modify | ||
13 | * it under the terms of the GNU General Public License version 2 as | ||
14 | * published by the Free Software Foundation. | ||
15 | */ | ||
16 | #include <linux/kernel.h> | ||
17 | #include <linux/io.h> | ||
18 | #include <linux/mtd/mtd.h> | ||
19 | #include <linux/mtd/nand.h> | ||
20 | |||
21 | #include "common.h" | ||
22 | |||
23 | void omap1_nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl) | ||
24 | { | ||
25 | struct nand_chip *this = mtd->priv; | ||
26 | unsigned long mask; | ||
27 | |||
28 | if (cmd == NAND_CMD_NONE) | ||
29 | return; | ||
30 | |||
31 | mask = (ctrl & NAND_CLE) ? 0x02 : 0; | ||
32 | if (ctrl & NAND_ALE) | ||
33 | mask |= 0x04; | ||
34 | |||
35 | writeb(cmd, this->IO_ADDR_W + mask); | ||
36 | } | ||
37 | |||