ARM: dts: turris-omnia: enable HW buffer management

The buffer manager is available on Turris Omnia but needs to be
described in device-tree to be used.
Signed-off-by: Marek Behún <kabel@kernel.org>
Fixes: 26ca8b52 ("ARM: dts: add support for Turris Omnia")
Cc: linux-arm-kernel@lists.infradead.org
Cc: Uwe Kleine-König <uwe@kleine-koenig.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Gregory CLEMENT <gregory.clement@bootlin.com>
Cc: Andreas Färber <afaerber@suse.de>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

arch/arm/boot/dts/armada-385-turris-omnia.dts

@@ -84,12 +84,23 @@ pcie@3,0 {
 	};
 };
 
+&bm {
+	status = "okay";
+};
+
+&bm_bppi {
+	status = "okay";
+};
+
 /* Connected to 88E6176 switch, port 6 */
 &eth0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&ge0_rgmii_pins>;
 	status = "okay";
 	phy-mode = "rgmii";
+	buffer-manager = <&bm>;
+	bm,pool-long = <0>;
+	bm,pool-short = <3>;
 
 	fixed-link {
 		speed = <1000>;
@@ -103,6 +114,9 @@ &eth1 {
 	pinctrl-0 = <&ge1_rgmii_pins>;
 	status = "okay";
 	phy-mode = "rgmii";
+	buffer-manager = <&bm>;
+	bm,pool-long = <1>;
+	bm,pool-short = <3>;
 
 	fixed-link {
 		speed = <1000>;
@@ -115,6 +129,9 @@ &eth2 {
 	status = "okay";
 	phy-mode = "sgmii";
 	phy = <&phy1>;
+	buffer-manager = <&bm>;
+	bm,pool-long = <2>;
+	bm,pool-short = <3>;
 };
 
 &i2c0 {