diff options
Diffstat (limited to 'drivers/mtd/nand/fsl_nfc.c')
| -rw-r--r-- | drivers/mtd/nand/fsl_nfc.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/mtd/nand/fsl_nfc.c b/drivers/mtd/nand/fsl_nfc.c index f84c785e4383..8def52a718e0 100644 --- a/drivers/mtd/nand/fsl_nfc.c +++ b/drivers/mtd/nand/fsl_nfc.c @@ -27,6 +27,7 @@ #include <linux/slab.h> #include <asm/fsl_nfc.h> #include <mach/hardware.h> +#include <mach/mxc_nand.h> #ifdef CONFIG_COLDFIRE #include <asm/mcfsim.h> @@ -787,6 +788,7 @@ fsl_nfc_probe(struct platform_device *pdev) struct resource *res; struct mtd_info *mtd; struct mtd_partition *parts; + struct mxc_nand_platform_data *pdata = pdev->dev.platform_data; struct nand_chip *chip; unsigned long regs_paddr, regs_size; int retval = 0; @@ -842,7 +844,11 @@ fsl_nfc_probe(struct platform_device *pdev) chip->write_buf = fsl_nfc_write_buf; chip->verify_buf = fsl_nfc_verify_buf; chip->options = NAND_NO_AUTOINCR | NAND_USE_FLASH_BBT | - NAND_BUSWIDTH_16 | NAND_CACHEPRG; + NAND_CACHEPRG; + + /* NAND bus width determines access funtions used by upper layer */ + if (pdata->width == 2) + chip->options |= NAND_BUSWIDTH_16; chip->select_chip = nfc_select_chip; @@ -917,9 +923,11 @@ fsl_nfc_probe(struct platform_device *pdev) CONFIG_FAST_FLASH_SHIFT, 1); #endif - nfc_set_field(mtd, NFC_FLASH_CONFIG, - CONFIG_16BIT_MASK, - CONFIG_16BIT_SHIFT, 1); + /* Flash mode width (BITWIDTH) required for 16-bit access */ + if (pdata->width == 2) + nfc_set_field(mtd, NFC_FLASH_CONFIG, + CONFIG_16BIT_MASK, + CONFIG_16BIT_SHIFT, 1); /* Detect NAND chips */ if (nand_scan(mtd, 1)) { |