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authorPratyush Yadav <p.yadav@ti.com>2021-06-25 22:17:21 +0300
committerJagan Teki <jagan@amarulasolutions.com>2021-06-28 09:33:57 +0300
commit6b808e0864dbd492d33e7149fb1666bef7e56049 (patch)
tree70fd5cda84efb3648a8cb42de05e235f874b6ff5 /include/linux
parentb862765c7c9a64640ce557bc10a10b4f20e8584b (diff)
downloadu-boot-6b808e0864dbd492d33e7149fb1666bef7e56049.tar.xz
mtd: spi-nor-core: Enable octal DTR mode when possible
Allow flashes to specify a hook to enable octal DTR mode. Use this hook whenever possible to get optimal transfer speeds. Signed-off-by: Pratyush Yadav <p.yadav@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/mtd/spi-nor.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index 295583ed29..aae814f557 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -477,6 +477,7 @@ struct spi_flash {
* @flash_is_locked: [FLASH-SPECIFIC] check if a region of the SPI NOR is
* completely locked
* @quad_enable: [FLASH-SPECIFIC] enables SPI NOR quad mode
+ * @octal_dtr_enable: [FLASH-SPECIFIC] enables SPI NOR octal DTR mode.
* @priv: the private data
*/
struct spi_nor {
@@ -524,6 +525,7 @@ struct spi_nor {
int (*flash_unlock)(struct spi_nor *nor, loff_t ofs, uint64_t len);
int (*flash_is_locked)(struct spi_nor *nor, loff_t ofs, uint64_t len);
int (*quad_enable)(struct spi_nor *nor);
+ int (*octal_dtr_enable)(struct spi_nor *nor);
void *priv;
/* Compatibility for spi_flash, remove once sf layer is merged with mtd */