Commit b4f7aa84 authored by John Crispin's avatar John Crispin Committed by David Woodhouse

mtd: add read_byte support to plat_nand

Lantiq SoCs have a External Bus Unit (EBU) that is used to attach MTD media.
As we need to co-exist with PCI on the same bus, certain swapping settings must
be applied. Similar to the NOR map driver we need to apply a fix to make NAND
work. The easiest way is to use byte reads.
Signed-off-by: default avatarJohn Crispin <blogic@openwrt.org>
Signed-off-by: default avatarArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent a4f20351
...@@ -79,6 +79,7 @@ static int __devinit plat_nand_probe(struct platform_device *pdev) ...@@ -79,6 +79,7 @@ static int __devinit plat_nand_probe(struct platform_device *pdev)
data->chip.select_chip = pdata->ctrl.select_chip; data->chip.select_chip = pdata->ctrl.select_chip;
data->chip.write_buf = pdata->ctrl.write_buf; data->chip.write_buf = pdata->ctrl.write_buf;
data->chip.read_buf = pdata->ctrl.read_buf; data->chip.read_buf = pdata->ctrl.read_buf;
data->chip.read_byte = pdata->ctrl.read_byte;
data->chip.chip_delay = pdata->chip.chip_delay; data->chip.chip_delay = pdata->chip.chip_delay;
data->chip.options |= pdata->chip.options; data->chip.options |= pdata->chip.options;
data->chip.bbt_options |= pdata->chip.bbt_options; data->chip.bbt_options |= pdata->chip.bbt_options;
......
...@@ -654,6 +654,7 @@ struct platform_nand_ctrl { ...@@ -654,6 +654,7 @@ struct platform_nand_ctrl {
void (*cmd_ctrl)(struct mtd_info *mtd, int dat, unsigned int ctrl); void (*cmd_ctrl)(struct mtd_info *mtd, int dat, unsigned int ctrl);
void (*write_buf)(struct mtd_info *mtd, const uint8_t *buf, int len); void (*write_buf)(struct mtd_info *mtd, const uint8_t *buf, int len);
void (*read_buf)(struct mtd_info *mtd, uint8_t *buf, int len); void (*read_buf)(struct mtd_info *mtd, uint8_t *buf, int len);
unsigned char (*read_byte)(struct mtd_info *mtd);
void *priv; void *priv;
}; };
......
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