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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>
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02bbe2aaa2
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da37d09682
2 changed files with 9 additions and 4 deletions
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@ -3755,7 +3755,7 @@ static bool find_full_id_nand(struct mtd_info *mtd, struct nand_chip *chip,
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/*
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* Get the flash and manufacturer id and lookup if the type is supported.
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*/
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static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
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struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
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struct nand_chip *chip,
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int *maf_id, int *dev_id,
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struct nand_flash_dev *type)
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@ -3927,6 +3927,7 @@ ident_done:
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mtd->erasesize >> 10, mtd->writesize, mtd->oobsize);
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return type;
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}
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EXPORT_SYMBOL(nand_get_flash_type);
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#if CONFIG_IS_ENABLED(OF_CONTROL)
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DECLARE_GLOBAL_DATA_PTR;
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@ -22,9 +22,16 @@
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#include <asm/cache.h>
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struct mtd_info;
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struct nand_chip;
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struct nand_flash_dev;
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struct device_node;
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/* Get the flash and manufacturer id and lookup if the type is supported. */
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struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
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struct nand_chip *chip,
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int *maf_id, int *dev_id,
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struct nand_flash_dev *type);
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/* Scan and identify a NAND device */
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int nand_scan(struct mtd_info *mtd, int max_chips);
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/*
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@ -247,9 +254,6 @@ typedef enum {
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#define NAND_CI_CELLTYPE_MSK 0x0C
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#define NAND_CI_CELLTYPE_SHIFT 2
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/* Keep gcc happy */
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struct nand_chip;
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/* ONFI features */
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#define ONFI_FEATURE_16_BIT_BUS (1 << 0)
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#define ONFI_FEATURE_EXT_PARAM_PAGE (1 << 7)
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