From: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
To: dwmw2@infradead.org, computersforpeace@gmail.com,
galak@codeaurora.org, santosh.shilimkar@ti.com
Cc: robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com,
ijc+devicetree@hellion.org.uk, rob@landley.net,
linux@arm.linux.org.uk, grygorii.strashko@ti.com,
devicetree@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mtd@lists.infradead.org,
Murali Karicheri <m-karicheri2@ti.com>,
Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Subject: [PATCH 2/3] mtd: davinci-nand: add dts property for NAND_NO_SUBPAGE_WRITE option
Date: Thu, 20 Mar 2014 19:06:23 +0200 [thread overview]
Message-ID: <1395335184-4745-3-git-send-email-ivan.khoronzhuk@ti.com> (raw)
In-Reply-To: <1395335184-4745-1-git-send-email-ivan.khoronzhuk@ti.com>
From: Murali Karicheri <m-karicheri2@ti.com>
After testing NAND flash with ubifs for k2hk-emv board were committed
that flash doesn't support subpage writing, so we can fix it by
adding a property to disable subpage write.
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
---
Documentation/devicetree/bindings/mtd/davinci-nand.txt | 2 ++
drivers/mtd/nand/davinci_nand.c | 3 +++
2 files changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/mtd/davinci-nand.txt b/Documentation/devicetree/bindings/mtd/davinci-nand.txt
index cfb18ab..50af930 100644
--- a/Documentation/devicetree/bindings/mtd/davinci-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/davinci-nand.txt
@@ -53,6 +53,8 @@ Recommended properties :
identifier is saved in OOB area. If not present
false.
+- ti,davinci-nosubpage-write: disable subpage write for the device
+
Deprecated properties:
- ti,davinci-ecc-mode: operation mode of the NAND ecc mode. ECC mode
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index 4615d79..3ba058d 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -581,6 +581,9 @@ static struct davinci_nand_pdata
of_property_read_bool(pdev->dev.of_node,
"ti,davinci-nand-use-bbt"))
pdata->bbt_options = NAND_BBT_USE_FLASH;
+ if (of_property_read_bool(pdev->dev.of_node,
+ "ti,davinci-no-subpage-write"))
+ pdata->options |= NAND_NO_SUBPAGE_WRITE;
}
return dev_get_platdata(&pdev->dev);
--
1.8.3.2
next prev parent reply other threads:[~2014-03-20 17:06 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-20 17:06 [PATCH 0/3] Fix NAND propeties for k2hk-evm Ivan Khoronzhuk
2014-03-20 17:06 ` [PATCH 1/3] ARM: dts: k2hk-evm: set ubifs partition size for 512M NAND Ivan Khoronzhuk
2014-03-20 17:06 ` Ivan Khoronzhuk [this message]
2014-03-20 17:12 ` [PATCH 2/3] mtd: davinci-nand: add dts property for NAND_NO_SUBPAGE_WRITE option Santosh Shilimkar
2014-03-20 17:29 ` Brian Norris
2014-03-20 17:37 ` Santosh Shilimkar
2014-03-20 17:44 ` Warner Losh
2014-03-20 18:02 ` Santosh Shilimkar
2014-03-20 18:09 ` Warner Losh
2014-03-20 18:54 ` Brian Norris
2014-03-20 19:11 ` Santosh Shilimkar
2014-03-20 19:26 ` Ivan Khoronzhuk
2014-03-20 19:28 ` Santosh Shilimkar
2014-03-20 18:42 ` Brian Norris
2014-03-20 17:06 ` [PATCH 3/3] ARM: dts: k2hk-evm: disable subpage write for davinci nand device Ivan Khoronzhuk
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