1 #ifndef __ASM_ARCH_PXA3XX_NAND_H
2 #define __ASM_ARCH_PXA3XX_NAND_H
4 #include <linux/mtd/mtd.h>
5 #include <linux/mtd/partitions.h>
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 */
19 struct pxa3xx_nand_cmdset {
32 struct pxa3xx_nand_flash {
33 const struct pxa3xx_nand_timing *timing; /* NAND Flash timing */
34 const struct pxa3xx_nand_cmdset *cmdset;
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 */
44 struct pxa3xx_nand_platform_data {
46 /* the data flash bus is shared between the Static Memory
47 * Controller and the Data Flash Controller, the arbiter
48 * controls the ownership of the bus
52 /* allow platform code to keep OBM/bootloader defined NFC config */
55 const struct mtd_partition *parts;
56 unsigned int nr_parts;
58 const struct pxa3xx_nand_flash * flash;
62 extern void pxa3xx_set_nand_info(struct pxa3xx_nand_platform_data *info);
63 #endif /* __ASM_ARCH_PXA3XX_NAND_H */