X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fmisc%2Fcros_ec_spi.c;h=015333f139a209fd686a4ac173aba02baeeb1b33;hb=3cc83f9d08a80fddf4c1e8e766eff8273f30814c;hp=202acf258b8d75de6ed328bd346262f230716f7b;hpb=1a4596601fd395f3afb8f82f3f840c5e00bdd57a;p=u-boot

diff --git a/drivers/misc/cros_ec_spi.c b/drivers/misc/cros_ec_spi.c
index 202acf258b..015333f139 100644
--- a/drivers/misc/cros_ec_spi.c
+++ b/drivers/misc/cros_ec_spi.c
@@ -17,6 +17,30 @@
 #include <cros_ec.h>
 #include <spi.h>
 
+int cros_ec_spi_packet(struct cros_ec_dev *dev, int out_bytes, int in_bytes)
+{
+	int rv;
+
+	/* Do the transfer */
+	if (spi_claim_bus(dev->spi)) {
+		debug("%s: Cannot claim SPI bus\n", __func__);
+		return -1;
+	}
+
+	rv = spi_xfer(dev->spi, max(out_bytes, in_bytes) * 8,
+		      dev->dout, dev->din,
+		      SPI_XFER_BEGIN | SPI_XFER_END);
+
+	spi_release_bus(dev->spi);
+
+	if (rv) {
+		debug("%s: Cannot complete SPI transfer\n", __func__);
+		return -1;
+	}
+
+	return in_bytes;
+}
+
 /**
  * Send a command to a LPC CROS_EC device and return the reply.
  *
@@ -42,6 +66,12 @@ int cros_ec_spi_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
 	int csum, len;
 	int rv;
 
+	if (dev->protocol_version != 2) {
+		debug("%s: Unsupported EC protcol version %d\n",
+		      __func__, dev->protocol_version);
+		return -1;
+	}
+
 	/*
 	 * Sanity-check input size to make sure it plus transaction overhead
 	 * fits in the internal device buffer.
@@ -68,7 +98,7 @@ int cros_ec_spi_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
 	}
 
 	out = dev->dout;
-	out[0] = cmd_version;
+	out[0] = EC_CMD_VERSION0 + cmd_version;
 	out[1] = cmd;
 	out[2] = (uint8_t)dout_len;
 	memcpy(out + 3, dout, dout_len);
@@ -135,8 +165,7 @@ int cros_ec_spi_decode_fdt(struct cros_ec_dev *dev, const void *blob)
  */
 int cros_ec_spi_init(struct cros_ec_dev *dev, const void *blob)
 {
-	dev->spi = spi_setup_slave_fdt(blob, dev->parent_node,
-				       dev->cs, dev->max_frequency, 0);
+	dev->spi = spi_setup_slave_fdt(blob, dev->node, dev->parent_node);
 	if (!dev->spi) {
 		debug("%s: Could not setup SPI slave\n", __func__);
 		return -1;