projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| ac7eb8a3 WD |
1 | /* |
| 2 | * (C) Copyright 2005 2N TELEKOMUNIKACE, Ladislav Michl | |
| 3 | * | |
| 4 | * See file CREDITS for list of people who contributed to this | |
| 5 | * project. | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or | |
| 8 | * modify it under the terms of the GNU General Public License as | |
| 9 | * published by the Free Software Foundation; either version 2 of | |
| 10 | * the License, or (at your option) any later version. | |
| 11 | * | |
| 12 | * This program is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | * GNU General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public License | |
| 18 | * along with this program; if not, write to the Free Software | |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
| 20 | * MA 02111-1307 USA | |
| 21 | */ | |
| 22 | ||
| 23 | #include <common.h> | |
| cfa460ad | 24 | #include <asm/io.h> |
| ac7eb8a3 | 25 | |
| 3fe00109 | 26 | #if defined(CONFIG_CMD_NAND) |
| ac7eb8a3 WD |
27 | |
| 28 | #include <nand.h> | |
| 29 | ||
| 30 | /* | |
| 31 | * hardware specific access to control-lines | |
| 32 | */ | |
| 33 | #define MASK_CLE 0x02 | |
| 34 | #define MASK_ALE 0x04 | |
| 35 | ||
| cfa460ad | 36 | static void netstar_nand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) |
| ac7eb8a3 WD |
37 | { |
| 38 | struct nand_chip *this = mtd->priv; | |
| 39 | ulong IO_ADDR_W = (ulong) this->IO_ADDR_W; | |
| 40 | ||
| 41 | IO_ADDR_W &= ~(MASK_ALE|MASK_CLE); | |
| cfa460ad WJ |
42 | if (ctrl & NAND_CTRL_CHANGE) { |
| 43 | if ( ctrl & NAND_CLE ) | |
| 44 | IO_ADDR_W |= MASK_CLE; | |
| 45 | if ( ctrl & NAND_ALE ) | |
| 46 | IO_ADDR_W |= MASK_ALE; | |
| ac7eb8a3 | 47 | } |
| cfa460ad WJ |
48 | this->IO_ADDR_W = (void __iomem *) IO_ADDR_W; |
| 49 | ||
| 50 | if (cmd != NAND_CMD_NONE) | |
| 51 | writeb(cmd, this->IO_ADDR_W); | |
| ac7eb8a3 WD |
52 | } |
| 53 | ||
| fa230445 | 54 | int board_nand_init(struct nand_chip *nand) |
| ac7eb8a3 | 55 | { |
| b9365a26 | 56 | nand->options = NAND_SAMSUNG_LP_OPTIONS; |
| cfa460ad WJ |
57 | nand->ecc.mode = NAND_ECC_SOFT; |
| 58 | nand->cmd_ctrl = netstar_nand_hwcontrol; | |
| f4e7cbfc | 59 | nand->chip_delay = 400; |
| fa230445 | 60 | return 0; |
| ac7eb8a3 WD |
61 | } |
| 62 | #endif |