From 2530640f07cd2b3b14fe9ec03fa63a586452cc5f Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 30 Jan 2016 13:19:53 +0000 Subject: ar71xx: add support for linux 4.4 Signed-off-by: Felix Fietkau SVN-Revision: 48563 --- .../464-spi-ath79-fix-fast-flash-read.patch | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 target/linux/ar71xx/patches-4.4/464-spi-ath79-fix-fast-flash-read.patch (limited to 'target/linux/ar71xx/patches-4.4/464-spi-ath79-fix-fast-flash-read.patch') diff --git a/target/linux/ar71xx/patches-4.4/464-spi-ath79-fix-fast-flash-read.patch b/target/linux/ar71xx/patches-4.4/464-spi-ath79-fix-fast-flash-read.patch new file mode 100644 index 0000000..f8ae4e0 --- /dev/null +++ b/target/linux/ar71xx/patches-4.4/464-spi-ath79-fix-fast-flash-read.patch @@ -0,0 +1,35 @@ +--- a/drivers/mtd/devices/m25p80.c ++++ b/drivers/mtd/devices/m25p80.c +@@ -137,6 +137,9 @@ 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 +@@ -268,6 +268,10 @@ 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 +@@ -705,6 +705,7 @@ struct spi_transfer { + u16 delay_usecs; + u32 speed_hz; + enum spi_transfer_type type; ++ bool dummy; + + struct list_head transfer_list; + }; -- cgit v1.1