85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
/*
|
|
* (C) Copyright 2005 2N TELEKOMUNIKACE, Ladislav Michl
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <common.h>
|
|
|
|
#if (CONFIG_COMMANDS & CFG_CMD_NAND)
|
|
|
|
#include <nand.h>
|
|
#include <mvTypes.h>
|
|
#include "mvBoardEnvLib.h"
|
|
#ifdef MV78200
|
|
extern MV_BOOL mvSocUnitIsMappedToThisCpu(MV_SOC_UNIT unit);
|
|
#endif
|
|
|
|
/*
|
|
* hardware specific access to control-lines
|
|
*/
|
|
#define MASK_CLE 0x01
|
|
#define MASK_ALE 0x02
|
|
|
|
|
|
static void mv_nand_hwcontrol(struct mtd_info *mtd, int cmd)
|
|
{
|
|
struct nand_chip *this = mtd->priv;
|
|
ulong IO_ADDR_W = (ulong) this->IO_ADDR_W;
|
|
/* TODO add auto detect for nand width */
|
|
MV_U32 shift = 0;
|
|
|
|
if (shift == MV_ERROR)
|
|
{
|
|
printf("No NAND detection\n");
|
|
shift = 0;
|
|
}
|
|
|
|
IO_ADDR_W &= ~((MASK_ALE|MASK_CLE) << shift);
|
|
switch (cmd) {
|
|
case NAND_CTL_SETCLE: IO_ADDR_W |= (MASK_CLE << shift); break;
|
|
case NAND_CTL_SETALE: IO_ADDR_W |= (MASK_ALE << shift); break;
|
|
}
|
|
this->IO_ADDR_W = (void *) IO_ADDR_W;
|
|
}
|
|
|
|
|
|
int board_nand_init(struct nand_chip *nand)
|
|
{
|
|
#ifdef MV78200
|
|
/* Check in dual CPU system which CPU use nand */
|
|
/* if (mvSocUnitIsMappedToThisCpu(NAND_FLASH))
|
|
{*/
|
|
#endif
|
|
#if defined(MV_LARGE_PAGE)
|
|
nand->options = NAND_SAMSUNG_LP_OPTIONS;
|
|
#endif
|
|
|
|
nand->eccmode = NAND_ECC_SOFT;
|
|
nand->hwcontrol = mv_nand_hwcontrol;
|
|
nand->chip_delay = 30;
|
|
return 0;
|
|
#ifdef MV78200
|
|
/* }
|
|
else
|
|
return 1;*/
|
|
#endif
|
|
}
|
|
#endif
|