X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fspi%2Fspi-uclass.c;h=5561f36762f9c6e45eff240c5e377920b96a0482;hb=86e9dc86b1a2f815582e7e3ad1f7d64481350733;hp=e0f6b25f30a6b6b6f814415faabc7968a12a00cb;hpb=f1993ca066100fcaba7d49fecae0ef604e5807e2;p=oweals%2Fu-boot.git

diff --git a/drivers/spi/spi-uclass.c b/drivers/spi/spi-uclass.c
index e0f6b25f30..5561f36762 100644
--- a/drivers/spi/spi-uclass.c
+++ b/drivers/spi/spi-uclass.c
@@ -157,6 +157,8 @@ static int spi_child_pre_probe(struct udevice *dev)
 
 	slave->max_hz = plat->max_hz;
 	slave->mode = plat->mode;
+	slave->mode_rx = plat->mode_rx;
+	slave->wordlen = SPI_DEFAULT_WORDLEN;
 
 	return 0;
 }
@@ -368,7 +370,8 @@ void spi_free_slave(struct spi_slave *slave)
 int spi_slave_ofdata_to_platdata(const void *blob, int node,
 				 struct dm_spi_slave_platdata *plat)
 {
-	int mode = 0;
+	int mode = 0, mode_rx = 0;
+	int value;
 
 	plat->cs = fdtdec_get_int(blob, node, "reg", -1);
 	plat->max_hz = fdtdec_get_int(blob, node, "spi-max-frequency", 0);
@@ -382,8 +385,42 @@ int spi_slave_ofdata_to_platdata(const void *blob, int node,
 		mode |= SPI_3WIRE;
 	if (fdtdec_get_bool(blob, node, "spi-half-duplex"))
 		mode |= SPI_PREAMBLE;
+
+	/* Device DUAL/QUAD mode */
+	value = fdtdec_get_uint(blob, node, "spi-tx-bus-width", 1);
+	switch (value) {
+	case 1:
+		break;
+	case 2:
+		mode |= SPI_TX_DUAL;
+		break;
+	case 4:
+		mode |= SPI_TX_QUAD;
+		break;
+	default:
+		error("spi-tx-bus-width %d not supported\n", value);
+		break;
+	}
+
 	plat->mode = mode;
 
+	value = fdtdec_get_uint(blob, node, "spi-rx-bus-width", 1);
+	switch (value) {
+	case 1:
+		break;
+	case 2:
+		mode_rx |= SPI_RX_DUAL;
+		break;
+	case 4:
+		mode_rx |= SPI_RX_QUAD;
+		break;
+	default:
+		error("spi-rx-bus-width %d not supported\n", value);
+		break;
+	}
+
+	plat->mode_rx = mode_rx;
+
 	return 0;
 }