diff options
| author | Alexander Clouter <alex@digriz.org.uk> | 2009-05-11 19:28:01 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2009-06-05 17:50:52 +0100 |
| commit | d6fed9e9fc5eefae5be0ecf222bac7e7496e8e74 (patch) | |
| tree | 6ce53210d557bdf7d3f4424736a611af376083ac | |
| parent | a0645ce9ba2e40fb2e2d74e47c90063015ee4527 (diff) | |
mtd: extend plat_nand for (read|write)_buf
This patch adds (write|read)_buf callbacks to plat_nand.
The NAND on the TS-7800 provisioned by the FPGA allows readw() and
readl() to be used which gives a 2.5x speed up. To be able to use this
from the plat_nand driver a hook for read_buf (and also write_buf whilst
we are in there) need to be made available. This patch adds the hook.
Signed-off-by: Alexander Clouter <alex@digriz.org.uk>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| -rw-r--r-- | drivers/mtd/nand/plat_nand.c | 2 | ||||
| -rw-r--r-- | include/linux/mtd/nand.h | 6 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c index 28ffd4e8bb2..47a2105b967 100644 --- a/drivers/mtd/nand/plat_nand.c +++ b/drivers/mtd/nand/plat_nand.c @@ -61,6 +61,8 @@ static int __devinit plat_nand_probe(struct platform_device *pdev) data->chip.cmd_ctrl = pdata->ctrl.cmd_ctrl; data->chip.dev_ready = pdata->ctrl.dev_ready; data->chip.select_chip = pdata->ctrl.select_chip; + data->chip.write_buf = pdata->ctrl.write_buf; + data->chip.read_buf = pdata->ctrl.read_buf; data->chip.chip_delay = pdata->chip.chip_delay; data->chip.options |= pdata->chip.options; diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 7efb9be3466..0e35375ea79 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -584,6 +584,8 @@ struct platform_nand_chip { * @select_chip: platform specific chip select function * @cmd_ctrl: platform specific function for controlling * ALE/CLE/nCE. Also used to write command and address + * @write_buf: platform specific function for write buffer + * @read_buf: platform specific function for read buffer * @priv: private data to transport driver specific settings * * All fields are optional and depend on the hardware driver requirements @@ -594,6 +596,10 @@ struct platform_nand_ctrl { void (*select_chip)(struct mtd_info *mtd, int chip); 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 (*read_buf)(struct mtd_info *mtd, + uint8_t *buf, int len); void *priv; }; |