diff options
| author | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
|---|---|---|
| committer | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
| commit | 8e4bff4cab0ddac6060645b0715210484d02ff40 (patch) | |
| tree | 3a5c3024371a04692a3a6d9974d001cdff8ebf84 /arch/arm/mach-omap1/board-nand.c | |
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 00000000..4d083532 --- /dev/null +++ b/arch/arm/mach-omap1/board-nand.c @@ -0,0 +1,37 @@ +/* + * 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 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/nand.h> + +#include "common.h" + +void omap1_nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl) +{ + struct nand_chip *this = mtd->priv; + unsigned long mask; + + if (cmd == NAND_CMD_NONE) + return; + + mask = (ctrl & NAND_CLE) ? 0x02 : 0; + if (ctrl & NAND_ALE) + mask |= 0x04; + + writeb(cmd, this->IO_ADDR_W + mask); +} + |