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| author | Jörg Krause <joerg.krause@embedded.rocks> | 2018-01-14 19:26:37 +0100 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2018-06-27 12:20:55 +0200 |
| commit | da37d096820e15b2bcdb0243da2dc01707c650f2 (patch) | |
| tree | 067250f9f3235917ad0c1a06fabcfccc147ea75f | |
| parent | 02bbe2aaa28fe2dde79b6d0e9ed5ed8963f79a8b (diff) | |
| download | u-boot-da37d096820e15b2bcdb0243da2dc01707c650f2.tar.gz | |
mtd: nand: export nand_get_flash_type function
`nand_get_flash_type()` allows identification of supported NAND flashs.
The function is useful in SPL (like mxs_nand_spl.c) to lookup for a NAND
flash (which does not support ONFi) instead of using nand_simple.c and
hard-coding all required NAND parameters.
Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
| -rw-r--r-- | drivers/mtd/nand/nand_base.c | 3 | ||||
| -rw-r--r-- | include/linux/mtd/rawnand.h | 10 |
2 files changed, 9 insertions, 4 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index eb9f121f81..64e4621aaa 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3755,7 +3755,7 @@ static bool find_full_id_nand(struct mtd_info *mtd, struct nand_chip *chip, /* * Get the flash and manufacturer id and lookup if the type is supported. */ -static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, +struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, struct nand_chip *chip, int *maf_id, int *dev_id, struct nand_flash_dev *type) @@ -3927,6 +3927,7 @@ ident_done: mtd->erasesize >> 10, mtd->writesize, mtd->oobsize); return type; } +EXPORT_SYMBOL(nand_get_flash_type); #if CONFIG_IS_ENABLED(OF_CONTROL) DECLARE_GLOBAL_DATA_PTR; diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 7fe553fc51..cdad7b85fa 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -22,9 +22,16 @@ #include <asm/cache.h> struct mtd_info; +struct nand_chip; struct nand_flash_dev; struct device_node; +/* Get the flash and manufacturer id and lookup if the type is supported. */ +struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, + struct nand_chip *chip, + int *maf_id, int *dev_id, + struct nand_flash_dev *type); + /* Scan and identify a NAND device */ int nand_scan(struct mtd_info *mtd, int max_chips); /* @@ -247,9 +254,6 @@ typedef enum { #define NAND_CI_CELLTYPE_MSK 0x0C #define NAND_CI_CELLTYPE_SHIFT 2 -/* Keep gcc happy */ -struct nand_chip; - /* ONFI features */ #define ONFI_FEATURE_16_BIT_BUS (1 << 0) #define ONFI_FEATURE_EXT_PARAM_PAGE (1 << 7) |