ar71xx: boost SPI flash read performance

[openwrt.git] / target / linux / ar71xx / patches-3.2 / 461-spi-add-type-field-to-spi_transfer.patch

diff --git a/target/linux/ar71xx/patches-3.2/461-spi-add-type-field-to-spi_transfer.patch b/target/linux/ar71xx/patches-3.2/461-spi-add-type-field-to-spi_transfer.patch
new file mode 100644 (file)
index 0000000..e87d7fc
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.2/461-spi-add-type-field-to-spi_transfer.patch
@@ -0,0 +1,23 @@
+--- a/include/linux/spi/spi.h
++++ b/include/linux/spi/spi.h
+@@ -344,6 +344,12 @@ extern struct spi_master *spi_busnum_to_
+ 
+ /*---------------------------------------------------------------------------*/
+ 
++enum spi_transfer_type {
++      SPI_TRANSFER_GENERIC = 0,
++      SPI_TRANSFER_FLASH_READ_CMD,
++      SPI_TRANSFER_FLASH_READ_DATA,
++};
++
+ /*
+  * I/O INTERFACE between SPI controller and protocol drivers
+  *
+@@ -446,6 +452,7 @@ struct spi_transfer {
+       u8              bits_per_word;
+       u16             delay_usecs;
+       u32             speed_hz;
++      enum spi_transfer_type type;
+ 
+       struct list_head transfer_list;
+ };