diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/arm/mach-omap1/board-nand.c | |
| parent | Initial commit. (diff) | |
| download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip | |
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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 000000000..1bffbb4e0 --- /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/rawnand.h> + +#include "common.h" + +void omap1_nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl) +{ + struct nand_chip *this = mtd_to_nand(mtd); + 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); +} + |