From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001 From: Yuval Adam <_@yuv.al> Date: Wed, 30 Aug 2017 08:25:59 +0000 Subject: Initial file dump from open source release --- arch/arm/mach-omap1/board-nand.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 arch/arm/mach-omap1/board-nand.c (limited to 'arch/arm/mach-omap1/board-nand.c') 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 +#include +#include +#include + +#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); +} + -- cgit v1.3.1