[RFC PATCH 2/4] spi: add flags for octal I/O data transfer
Yogesh Gaur
yogeshnarayan.gaur at nxp.com
Wed Apr 4 03:06:09 PDT 2018
Add flags for Octal I/O data transfer
Required for flashes like mt35xu512aba, which are working on 8 wires.
SPI_TX_OCTAL: transmit with 8 wires
SPI_RX_OCTAL: receive with 8 wires
Signed-off-by: Yogesh Gaur <yogeshnarayan.gaur at nxp.com>
---
include/linux/spi/spi.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index bc6bb32..2757a9b 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -163,6 +163,8 @@ struct spi_device {
#define SPI_TX_QUAD 0x200 /* transmit with 4 wires */
#define SPI_RX_DUAL 0x400 /* receive with 2 wires */
#define SPI_RX_QUAD 0x800 /* receive with 4 wires */
+#define SPI_TX_OCTAL 0x1000 /* transmit with 8 wires */
+#define SPI_RX_OCTAL 0x2000 /* receive with 8 wires */
int irq;
void *controller_state;
void *controller_data;
--
1.9.1
More information about the linux-mtd
mailing list