SiFive SPI controller has a proto bit field in frame format
register which would be used to configure the SPI I/O protocol
lines used on specific transfer.
Right now the driver is configuring this proto using slave->mode
which is used for data transfer and opcode, address vary depending
on the particular transfer at runtime.
Now the SPI framework supports per transfer I/O protocol lines,
so use spi->proto instead of slave-mode.
Signed-off-by: Jagan Teki <ja...@amarulasolutions.com>
---
drivers/spi/spi-sifive.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/spi/spi-sifive.c b/drivers/spi/spi-sifive.c
index 8f5efb51a3..336b683476 100644
--- a/drivers/spi/spi-sifive.c
+++ b/drivers/spi/spi-sifive.c
@@ -146,12 +146,17 @@ static void sifive_spi_prep_transfer(struct sifive_spi
*spi,
/* Number of wires ? */
cr &= ~SIFIVE_SPI_FMT_PROTO_MASK;
- if ((slave_plat->mode & SPI_TX_QUAD) || (slave_plat->mode &
SPI_RX_QUAD))
+ switch (slave_plat->proto) {
+ case SPI_PROTO_QUAD:
cr |= SIFIVE_SPI_FMT_PROTO_QUAD;
- else if ((slave_plat->mode & SPI_TX_DUAL) || (slave_plat->mode &
SPI_RX_DUAL))
+ break;
+ case SPI_PROTO_DUAL:
cr |= SIFIVE_SPI_FMT_PROTO_DUAL;
- else
+ break;
+ default:
cr |= SIFIVE_SPI_FMT_PROTO_SINGLE;
+ break;
+ }
/* SPI direction in/out ? */
cr &= ~SIFIVE_SPI_FMT_DIR;
--
2.17.1
