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- From 95430662a26332474f4a03a7f8f44fd8d80890b3 Mon Sep 17 00:00:00 2001
- From: Boris BREZILLON <b.brezillon.dev@gmail.com>
- Date: Mon, 24 Feb 2014 16:28:32 +0100
- Subject: [PATCH] mtd: nand: Add manufacturer specific init code infrastructure
- Add new fields in nand_manufacturers and nand_chip struct to provide
- manufacturer specific handling like read retries.
- Signed-off-by: Boris BREZILLON <b.brezillon.dev@gmail.com>
- Signed-off-by: Hans de Goede <hdegoede@redhat.com>
- ---
- drivers/mtd/nand/nand_base.c | 7 +++++++
- include/linux/mtd/nand.h | 4 ++++
- 2 files changed, 11 insertions(+)
- --- a/drivers/mtd/nand/nand_base.c
- +++ b/drivers/mtd/nand/nand_base.c
- @@ -4382,6 +4382,13 @@ ident_done:
- if (mtd->writesize > 512 && chip->cmdfunc == nand_command)
- chip->cmdfunc = nand_command_lp;
-
- + if (nand_manuf_ids[maf_idx].init) {
- + int err;
- + err = nand_manuf_ids[maf_idx].init(mtd, id_data);
- + if (err)
- + return ERR_PTR(err);
- + }
- +
- pr_info("device found, Manufacturer ID: 0x%02x, Chip ID: 0x%02x\n",
- *maf_id, *dev_id);
-
- --- a/include/linux/mtd/nand.h
- +++ b/include/linux/mtd/nand.h
- @@ -748,6 +748,9 @@ struct nand_chip {
- int (*onfi_get_features)(struct mtd_info *mtd, struct nand_chip *chip,
- int feature_addr, uint8_t *subfeature_para);
- int (*setup_read_retry)(struct mtd_info *mtd, int retry_mode);
- + void (*manuf_cleanup)(struct mtd_info *mtd);
- +
- + void *manuf_priv;
-
- int chip_delay;
- unsigned int options;
- @@ -950,6 +953,7 @@ struct nand_flash_dev {
- struct nand_manufacturers {
- int id;
- char *name;
- + int (*init)(struct mtd_info *mtd, const uint8_t *id);
- };
-
- extern struct nand_flash_dev nand_flash_ids[];
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