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authorAlexander Clouter <alex@digriz.org.uk>2009-05-11 19:28:01 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-06-05 17:50:52 +0100
commitd6fed9e9fc5eefae5be0ecf222bac7e7496e8e74 (patch)
tree6ce53210d557bdf7d3f4424736a611af376083ac /include/linux/mtd
parenta0645ce9ba2e40fb2e2d74e47c90063015ee4527 (diff)
downloadop-kernel-dev-d6fed9e9fc5eefae5be0ecf222bac7e7496e8e74.zip
op-kernel-dev-d6fed9e9fc5eefae5be0ecf222bac7e7496e8e74.tar.gz
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>
Diffstat (limited to 'include/linux/mtd')
-rw-r--r--include/linux/mtd/nand.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 7efb9be..0e35375 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;
};
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