diff options
Diffstat (limited to 'board/nc650/nand.c')
-rw-r--r-- | board/nc650/nand.c | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/board/nc650/nand.c b/board/nc650/nand.c deleted file mode 100644 index 7dca97f..0000000 --- a/board/nc650/nand.c +++ /dev/null @@ -1,110 +0,0 @@ -/* - * (C) Copyright 2006 Detlev Zundel, dzu@denx.de - * (C) Copyright 2006 DENX Software Engineering - * - * 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> -#include <asm/io.h> - -#if defined(CONFIG_CMD_NAND) - -#include <nand.h> - -#if defined(CONFIG_IDS852_REV1) -/* - * hardware specific access to control-lines - */ -static void nc650_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) -{ - struct nand_chip *this = mtd->priv; - - if (ctrl & NAND_CTRL_CHANGE) { - if ( ctrl & NAND_CLE ) - this->IO_ADDR_W += 2; - else - this->IO_ADDR_W -= 2; - if ( ctrl & NAND_ALE ) - this->IO_ADDR_W += 1; - else - this->IO_ADDR_W -= 1; - } - - if (cmd != NAND_CMD_NONE) - writeb(cmd, this->IO_ADDR_W); -} -#elif defined(CONFIG_IDS852_REV2) -/* - * hardware specific access to control-lines - */ -static void nc650_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) -{ - struct nand_chip *this = mtd->priv; - - if (ctrl & NAND_CTRL_CHANGE) { - if ( ctrl & NAND_CLE ) - writeb(0, (volatile __u8 *) this->IO_ADDR_W + 0xa); - else - writeb(0, (volatile __u8 *) this->IO_ADDR_W) + 0x8); - if ( ctrl & NAND_ALE ) - writeb(0, (volatile __u8 *) this->IO_ADDR_W) + 0x9); - else - writeb(0, (volatile __u8 *) this->IO_ADDR_W) + 0x8); - if ( ctrl & NAND_NCE ) - writeb(0, (volatile __u8 *) this->IO_ADDR_W) + 0x8); - else - writeb(0, (volatile __u8 *) this->IO_ADDR_W) + 0xc); - } - - if (cmd != NAND_CMD_NONE) - writeb(cmd, this->IO_ADDR_W); -} -#else -#error Unknown IDS852 module revision -#endif - -/* - * Board-specific NAND initialization. The following members of the - * argument are board-specific (per include/linux/mtd/nand.h): - * - IO_ADDR_R?: address to read the 8 I/O lines of the flash device - * - IO_ADDR_W?: address to write the 8 I/O lines of the flash device - * - cmd_ctrl: hardwarespecific function for accesing control-lines - * - dev_ready: hardwarespecific function for accesing device ready/busy line - * - enable_hwecc?: function to enable (reset) hardware ecc generator. Must - * only be provided if a hardware ECC is available - * - eccm.ode: mode of ecc, see defines - * - chip_delay: chip dependent delay for transfering data from array to - * read regs (tR) - * - options: various chip options. They can partly be set to inform - * nand_scan about special functionality. See the defines for further - * explanation - * Members with a "?" were not set in the merged testing-NAND branch, - * so they are not set here either. - */ -int board_nand_init(struct nand_chip *nand) -{ - - nand->cmd_ctrl = nc650_hwcontrol; - nand->ecc.mode = NAND_ECC_SOFT; - nand->chip_delay = 12; -/* nand->options = NAND_SAMSUNG_LP_OPTIONS;*/ - return 0; -} -#endif |