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b37bde14 BW |
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 | }; |