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Commit c50c6940 authored by Huang Shijie's avatar Huang Shijie Committed by David Woodhouse
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mtd: gpmi: add on-flash BBT support for gpmi nand 



add the on flash bbt support for gpmi nand driver.

Signed-off-by: default avatarHuang Shijie <b32955@freescale.com>
Signed-off-by: default avatarArtem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent 44ed0ffd

Documentation/devicetree/bindings/mtd/gpmi-nand.txt

+4 −0
Original line number Diff line number Diff line
@@ -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.

drivers/mtd/nand/gpmi-nand/gpmi-nand.c

+3 −0
Original line number Diff line number Diff line
@@ -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;