| Bryan Wu | b37bde1 | 2007-10-02 13:56:05 -0700 | [diff] [blame] | 1 | /* linux/include/asm-blackfin/nand.h |
| 2 | * |
| 3 | * Copyright (c) 2007 Analog Devices, Inc. |
| 4 | * Bryan Wu <bryan.wu@analog.com> |
| 5 | * |
| 6 | * BF5XX - NAND flash controller platfrom_device info |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | |
| 13 | /* struct bf5xx_nand_platform |
| 14 | * |
| 15 | * define a interface between platfrom board specific code and |
| 16 | * bf54x NFC driver. |
| 17 | * |
| 18 | * nr_partitions = number of partitions pointed to be partitoons (or zero) |
| 19 | * partitions = mtd partition list |
| 20 | */ |
| 21 | |
| 22 | #define NFC_PG_SIZE_256 0 |
| 23 | #define NFC_PG_SIZE_512 1 |
| 24 | #define NFC_PG_SIZE_OFFSET 9 |
| 25 | |
| 26 | #define NFC_NWIDTH_8 0 |
| 27 | #define NFC_NWIDTH_16 1 |
| 28 | #define NFC_NWIDTH_OFFSET 8 |
| 29 | |
| 30 | #define NFC_RDDLY_OFFSET 4 |
| 31 | #define NFC_WRDLY_OFFSET 0 |
| 32 | |
| 33 | #define NFC_STAT_NBUSY 1 |
| 34 | |
| 35 | struct bf5xx_nand_platform { |
| 36 | /* NAND chip information */ |
| 37 | unsigned short page_size; |
| 38 | unsigned short data_width; |
| 39 | |
| 40 | /* RD/WR strobe delay timing information, all times in SCLK cycles */ |
| 41 | unsigned short rd_dly; |
| 42 | unsigned short wr_dly; |
| 43 | |
| 44 | /* NAND MTD partition information */ |
| 45 | int nr_partitions; |
| 46 | struct mtd_partition *partitions; |
| 47 | }; |