[PATCH 5/9] net: fec: add set_promisc function

[Tim Harvey]

Enabling promiscuous mode is necessary if FEC is the master of a DSA
switch driver where each port has their own MAC address.

Signed-off-by: Tim Harvey <tharvey at gateworks.com>
---
 drivers/net/fec_mxc.c | 13 +++++++++++++
 drivers/net/fec_mxc.h |  1 +
 2 files changed, 14 insertions(+)

diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c
index 77680491d0..db2cdaf684 100644
--- a/drivers/net/fec_mxc.c
+++ b/drivers/net/fec_mxc.c
@@ -458,6 +458,9 @@ static void fec_reg_setup(struct fec_priv *fec)
 	else if (fec->xcv_type == RMII)
 		rcntrl |= FEC_RCNTRL_RMII;
 
+	if (fec->promisc)
+		rcntrl |= 0x8;
+
 	writel(rcntrl, &fec->eth->r_cntrl);
 }
 
@@ -1278,6 +1281,15 @@ static int fecmxc_read_rom_hwaddr(struct udevice *dev)
 	return fec_get_hwaddr(priv->dev_id, pdata->enetaddr);
 }
 
+static int fecmxc_set_promisc(struct udevice *dev, bool enable)
+{
+	struct fec_priv *priv = dev_get_priv(dev);
+
+	priv->promisc = enable;
+
+	return 0;
+}
+
 static int fecmxc_free_pkt(struct udevice *dev, uchar *packet, int length)
 {
 	if (packet)
@@ -1294,6 +1306,7 @@ static const struct eth_ops fecmxc_ops = {
 	.stop			= fecmxc_halt,
 	.write_hwaddr		= fecmxc_set_hwaddr,
 	.read_rom_hwaddr	= fecmxc_read_rom_hwaddr,
+	.set_promisc		= fecmxc_set_promisc,
 };
 
 static int device_get_phy_addr(struct fec_priv *priv, struct udevice *dev)
diff --git a/drivers/net/fec_mxc.h b/drivers/net/fec_mxc.h
index 5ccde9193b..62b55ef395 100644
--- a/drivers/net/fec_mxc.h
+++ b/drivers/net/fec_mxc.h
@@ -272,6 +272,7 @@ struct fec_priv {
 	struct clk clk_ref;
 	struct clk clk_ptp;
 	u32 clk_rate;
+	char promisc;
 };
 
 /**
-- 
2.17.1