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