diff options
Diffstat (limited to 'target/linux/ar71xx/patches-4.1/464-spi-ath79-fix-fast-flash-read.patch')
-rw-r--r-- | target/linux/ar71xx/patches-4.1/464-spi-ath79-fix-fast-flash-read.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-4.1/464-spi-ath79-fix-fast-flash-read.patch b/target/linux/ar71xx/patches-4.1/464-spi-ath79-fix-fast-flash-read.patch new file mode 100644 index 0000000..4f88682 --- /dev/null +++ b/target/linux/ar71xx/patches-4.1/464-spi-ath79-fix-fast-flash-read.patch @@ -0,0 +1,35 @@ +--- a/drivers/mtd/devices/m25p80.c ++++ b/drivers/mtd/devices/m25p80.c +@@ -142,6 +142,9 @@ static int m25p80_read(struct spi_nor *n + flash->command[0] = nor->read_opcode; + m25p_addr2cmd(nor, from, flash->command); + ++ if (dummy == 1) ++ t[0].dummy = true; ++ + t[0].type = SPI_TRANSFER_FLASH_READ_CMD; + t[0].tx_buf = flash->command; + t[0].len = m25p_cmdsz(nor) + dummy; +--- a/drivers/spi/spi-ath79.c ++++ b/drivers/spi/spi-ath79.c +@@ -260,6 +260,10 @@ static int ath79_spi_do_read_flash_cmd(s + sp->read_addr = 0; + + len = t->len - 1; ++ ++ if (t->dummy) ++ len -= 1; ++ + p = t->tx_buf; + + while (len--) { +--- a/include/linux/spi/spi.h ++++ b/include/linux/spi/spi.h +@@ -635,6 +635,7 @@ struct spi_transfer { + u16 delay_usecs; + u32 speed_hz; + enum spi_transfer_type type; ++ bool dummy; + + struct list_head transfer_list; + }; |