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| author | Amul Kumar Saha <amul.saha@samsung.com> | 2009-11-06 17:15:31 +0530 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2009-11-13 16:56:18 -0600 |
| commit | cacbe919584193f64e74088e03f068e52775bb86 (patch) | |
| tree | 4ef455ca413a90d2d5c90e85233826e3a6b75ca0 /include/linux/mtd/onenand.h | |
| parent | 35209cbceebe212a8c5ec17d552960f8bd4725f3 (diff) | |
| download | u-boot-imx-cacbe919584193f64e74088e03f068e52775bb86.zip u-boot-imx-cacbe919584193f64e74088e03f068e52775bb86.tar.gz u-boot-imx-cacbe919584193f64e74088e03f068e52775bb86.tar.bz2 | |
Flex-OneNAND driver support
This patch adds support for Flex-OneNAND devices.
Signed-off-by: Rohit Hagargundgi <h.rohit@samsung.com>
Signed-off-by: Amul Kumar Saha <amul.saha@samsung.com>
Diffstat (limited to 'include/linux/mtd/onenand.h')
| -rw-r--r-- | include/linux/mtd/onenand.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h index 9a6f317..68e174e 100644 --- a/include/linux/mtd/onenand.h +++ b/include/linux/mtd/onenand.h @@ -20,8 +20,9 @@ #include <linux/mtd/compat.h> #include <linux/mtd/bbm.h> +#define MAX_DIES 2 #define MAX_BUFFERRAM 2 -#define MAX_ONENAND_PAGESIZE (2048 + 64) +#define MAX_ONENAND_PAGESIZE (4096 + 128) /* Scan and identify a OneNAND device */ extern int onenand_scan (struct mtd_info *mtd, int max_chips); @@ -39,9 +40,14 @@ struct onenand_bufferram { /** * struct onenand_chip - OneNAND Private Flash Chip Data * @param base [BOARDSPECIFIC] address to access OneNAND + * @dies: [INTERN][FLEXONENAND] number of dies on chip + * @boundary: [INTERN][FLEXONENAND] Boundary of the dies + * @diesize: [INTERN][FLEXONENAND] Size of the dies * @param chipsize [INTERN] the size of one chip for multichip arrays * @param device_id [INTERN] device ID * @param verstion_id [INTERN] version ID + * @technology [INTERN] describes the internal NAND array technology such as SLC or MLC. + * @density_mask: [INTERN] chip density, used for DDP devices * @param options [BOARDSPECIFIC] various chip options. They can partly be set to inform onenand_scan about * @param erase_shift [INTERN] number of address bits in a block * @param page_shift [INTERN] number of address bits in a page @@ -64,9 +70,13 @@ struct onenand_bufferram { */ struct onenand_chip { void __iomem *base; + unsigned int dies; + unsigned int boundary[MAX_DIES]; + unsigned int diesize[MAX_DIES]; unsigned int chipsize; unsigned int device_id; unsigned int version_id; + unsigned int technology; unsigned int density_mask; unsigned int options; @@ -124,6 +134,8 @@ struct onenand_chip { #define ONENAND_SET_BUFFERRAM0(this) (this->bufferram_index = 0) #define ONENAND_SET_BUFFERRAM1(this) (this->bufferram_index = 1) +#define FLEXONENAND(this) (this->device_id & DEVICE_IS_FLEXONENAND) +#define ONENAND_IS_MLC(this) (this->technology & ONENAND_TECHNOLOGY_IS_MLC) #define ONENAND_IS_DDP(this) \ (this->device_id & ONENAND_DEVICE_IS_DDP) @@ -157,4 +169,6 @@ struct onenand_manufacturers { int onenand_bbt_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops); +unsigned int onenand_block(struct onenand_chip *this, loff_t addr); +int flexonenand_region(struct mtd_info *mtd, loff_t addr); #endif /* __LINUX_MTD_ONENAND_H */ |