38 lines
933 B
C
38 lines
933 B
C
|
/*
|
||
|
|
* 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);
|
||
|
|
}
|
||
|
|
|