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mtd: gpmi: add on-flash BBT support for gpmi nand

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add the on flash bbt support for gpmi nand driver.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Huang Shijie 2012-07-03 16:24:32 +08:00 committed by David Woodhouse
parent 44ed0ffdbc
commit c50c69402a
2 changed files with 7 additions and 0 deletions
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4
Documentation/devicetree/bindings/mtd/gpmi-nand.txt
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@ -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.

3
drivers/mtd/nand/gpmi-nand/gpmi-nand.c
View File

@ -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 */
@ -1502,6 +1503,8 @@ 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;