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From: Zach Brown <zach.brown@ni.com>
To: <dwmw2@infradead.org>
Cc: <computersforpeace@gmail.com>,
	<boris.brezillon@free-electrons.com>, <richard@nod.at>,
	<dedekind1@gmail.com>, <linux-mtd@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>
Subject: [PATCH v6 5/5] mtd: nand: set max_bb_per_die and blocks_per_die for ONFI compliant chips
Date: Wed, 30 Nov 2016 10:57:31 -0600	[thread overview]
Message-ID: <1480525051-4991-6-git-send-email-zach.brown@ni.com> (raw)
In-Reply-To: <1480525051-4991-1-git-send-email-zach.brown@ni.com>

ONFI compliant chips contain the values for the max_bb_per_die and
blocks_per_die fields in the parameter page. When the ONFI paged is
retrieved/parsed the chip's fields are set by the corresponding fields
in the param page.

Signed-off-by: Zach Brown <zach.brown@ni.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electron.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/nand_base.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index b4a7c7f..623cdc5 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -3601,6 +3601,9 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
 	chip->chipsize *= (uint64_t)mtd->erasesize * p->lun_count;
 	chip->bits_per_cell = p->bits_per_cell;
 
+	chip->max_bb_per_die = le16_to_cpu(p->bb_per_lun);
+	chip->blocks_per_die = le32_to_cpu(p->blocks_per_lun);
+
 	if (onfi_feature(chip) & ONFI_FEATURE_16_BIT_BUS)
 		*busw = NAND_BUSWIDTH_16;
 	else
-- 
2.7.4

      parent reply	other threads:[~2016-11-30 16:58 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-30 16:57 [PATCH v6 0/5] mtd: use ONFI bad blocks per LUN to calculate UBI bad PEB limit Zach Brown
2016-11-30 16:57 ` [PATCH v6 1/5] mtd: introduce function max_bad_blocks Zach Brown
2016-12-12 22:48   ` Brian Norris
2016-11-30 16:57 ` [PATCH v6 2/5] mtd: ubi: use 'max_bad_blocks' to compute bad_peb_limit if available Zach Brown
2016-11-30 16:57 ` [PATCH v6 3/5] mtd: nand: Add max_bb_per_die and blocks_per_die fields to nand_chip Zach Brown
2016-11-30 16:57 ` [PATCH v6 4/5] mtd: nand: implement 'max_bad_blocks' mtd function Zach Brown
2016-11-30 16:57 ` Zach Brown [this message]

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