| eric miao | fe69af0 | 2008-02-14 15:48:23 +0800 | [diff] [blame] | 1 | #ifndef __ASM_ARCH_PXA3XX_NAND_H |
| 2 | #define __ASM_ARCH_PXA3XX_NAND_H |
| 3 | |
| 4 | #include <linux/mtd/mtd.h> |
| 5 | #include <linux/mtd/partitions.h> |
| 6 | |
| Enrico Scholz | 4303533 | 2008-08-29 12:57:28 +0200 | [diff] [blame^] | 7 | struct pxa3xx_nand_timing { |
| 8 | unsigned int tCH; /* Enable signal hold time */ |
| 9 | unsigned int tCS; /* Enable signal setup time */ |
| 10 | unsigned int tWH; /* ND_nWE high duration */ |
| 11 | unsigned int tWP; /* ND_nWE pulse time */ |
| 12 | unsigned int tRH; /* ND_nRE high duration */ |
| 13 | unsigned int tRP; /* ND_nRE pulse width */ |
| 14 | unsigned int tR; /* ND_nWE high to ND_nRE low for read */ |
| 15 | unsigned int tWHR; /* ND_nWE high to ND_nRE low for status read */ |
| 16 | unsigned int tAR; /* ND_ALE low to ND_nRE low delay */ |
| 17 | }; |
| 18 | |
| 19 | struct pxa3xx_nand_cmdset { |
| 20 | uint16_t read1; |
| 21 | uint16_t read2; |
| 22 | uint16_t program; |
| 23 | uint16_t read_status; |
| 24 | uint16_t read_id; |
| 25 | uint16_t erase; |
| 26 | uint16_t reset; |
| 27 | uint16_t lock; |
| 28 | uint16_t unlock; |
| 29 | uint16_t lock_status; |
| 30 | }; |
| 31 | |
| 32 | struct pxa3xx_nand_flash { |
| 33 | struct pxa3xx_nand_timing *timing; /* NAND Flash timing */ |
| 34 | struct pxa3xx_nand_cmdset *cmdset; |
| 35 | |
| 36 | uint32_t page_per_block;/* Pages per block (PG_PER_BLK) */ |
| 37 | uint32_t page_size; /* Page size in bytes (PAGE_SZ) */ |
| 38 | uint32_t flash_width; /* Width of Flash memory (DWIDTH_M) */ |
| 39 | uint32_t dfc_width; /* Width of flash controller(DWIDTH_C) */ |
| 40 | uint32_t num_blocks; /* Number of physical blocks in Flash */ |
| 41 | uint32_t chip_id; |
| 42 | |
| 43 | /* NOTE: these are automatically calculated, do not define */ |
| 44 | size_t oob_size; |
| 45 | size_t read_id_bytes; |
| 46 | |
| 47 | unsigned int col_addr_cycles; |
| 48 | unsigned int row_addr_cycles; |
| 49 | }; |
| 50 | |
| eric miao | fe69af0 | 2008-02-14 15:48:23 +0800 | [diff] [blame] | 51 | struct pxa3xx_nand_platform_data { |
| 52 | |
| 53 | /* the data flash bus is shared between the Static Memory |
| 54 | * Controller and the Data Flash Controller, the arbiter |
| 55 | * controls the ownership of the bus |
| 56 | */ |
| 57 | int enable_arbiter; |
| 58 | |
| 59 | struct mtd_partition *parts; |
| 60 | unsigned int nr_parts; |
| 61 | }; |
| Eric Miao | 9ae819a | 2008-06-02 15:22:03 +0800 | [diff] [blame] | 62 | |
| 63 | extern void pxa3xx_set_nand_info(struct pxa3xx_nand_platform_data *info); |
| eric miao | fe69af0 | 2008-02-14 15:48:23 +0800 | [diff] [blame] | 64 | #endif /* __ASM_ARCH_PXA3XX_NAND_H */ |