diff options
Diffstat (limited to 'arch/arm/mach-pxa/include/mach/pxa3xx_nand.h')
| -rw-r--r-- | arch/arm/mach-pxa/include/mach/pxa3xx_nand.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/include/mach/pxa3xx_nand.h b/arch/arm/mach-pxa/include/mach/pxa3xx_nand.h index eb4b190b665..0dc50d82ea7 100644 --- a/arch/arm/mach-pxa/include/mach/pxa3xx_nand.h +++ b/arch/arm/mach-pxa/include/mach/pxa3xx_nand.h @@ -4,6 +4,50 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> +struct pxa3xx_nand_timing { + unsigned int tCH; /* Enable signal hold time */ + unsigned int tCS; /* Enable signal setup time */ + unsigned int tWH; /* ND_nWE high duration */ + unsigned int tWP; /* ND_nWE pulse time */ + unsigned int tRH; /* ND_nRE high duration */ + unsigned int tRP; /* ND_nRE pulse width */ + unsigned int tR; /* ND_nWE high to ND_nRE low for read */ + unsigned int tWHR; /* ND_nWE high to ND_nRE low for status read */ + unsigned int tAR; /* ND_ALE low to ND_nRE low delay */ +}; + +struct pxa3xx_nand_cmdset { + uint16_t read1; + uint16_t read2; + uint16_t program; + uint16_t read_status; + uint16_t read_id; + uint16_t erase; + uint16_t reset; + uint16_t lock; + uint16_t unlock; + uint16_t lock_status; +}; + +struct pxa3xx_nand_flash { + struct pxa3xx_nand_timing *timing; /* NAND Flash timing */ + struct pxa3xx_nand_cmdset *cmdset; + + uint32_t page_per_block;/* Pages per block (PG_PER_BLK) */ + uint32_t page_size; /* Page size in bytes (PAGE_SZ) */ + uint32_t flash_width; /* Width of Flash memory (DWIDTH_M) */ + uint32_t dfc_width; /* Width of flash controller(DWIDTH_C) */ + uint32_t num_blocks; /* Number of physical blocks in Flash */ + uint32_t chip_id; + + /* NOTE: these are automatically calculated, do not define */ + size_t oob_size; + size_t read_id_bytes; + + unsigned int col_addr_cycles; + unsigned int row_addr_cycles; +}; + struct pxa3xx_nand_platform_data { /* the data flash bus is shared between the Static Memory |