[PATCH 1/2] mtd: gpmi: add on-flash BBT support for gpmi nand
Huang Shijie
b32955 at freescale.com
Tue Jul 3 04:24:32 EDT 2012
add the on flash bbt support for gpmi nand driver.
Signed-off-by: Huang Shijie <b32955 at freescale.com>
---
.../devicetree/bindings/mtd/gpmi-nand.txt | 4 ++++
drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 3 +++
2 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/Documentation/devicetree/bindings/mtd/gpmi-nand.txt b/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
index 1a5bbd3..3fb3f90 100644
--- a/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
@@ -12,6 +12,10 @@ Required properties:
- interrupt-names : The interrupt names "gpmi-dma", "bch";
- fsl,gpmi-dma-channel : Should contain the dma channel it uses.
+Optional properties:
+ - nand-on-flash-bbt: boolean to enable on flash bbt option if not
+ present false
+
The device tree may optionally contain sub-nodes describing partitions of the
address space. See partition.txt for more detail.
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 5a90df1..a1bf31f 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -27,6 +27,7 @@
#include <linux/pinctrl/consumer.h>
#include <linux/of.h>
#include <linux/of_device.h>
+#include <linux/of_mtd.h>
#include "gpmi-nand.h"
/* add our owner bbt descriptor */
@@ -1561,6 +1562,8 @@ static int __devinit gpmi_nfc_init(struct gpmi_nand_data *this)
chip->ecc.size = 1;
chip->ecc.strength = 8;
chip->ecc.layout = &gpmi_hw_ecclayout;
+ if (of_get_nand_on_flash_bbt(this->dev->of_node))
+ chip->bbt_options |= NAND_BBT_USE_FLASH | NAND_BBT_NO_OOB;
/* Allocate a temporary DMA buffer for reading ID in the nand_scan() */
this->bch_geometry.payload_size = 1024;
--
1.7.0.4
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