[PATCH v2 1/2] arm64: dts: tqma8mpql-mba8mpxl: Configure multiple queues on eqos

[Alexander Stein]

The MBa8MPxL mainboard has an integrated PHY connected to the EQOS
ethernet controller which can support up to five queues. Configure
these queues in the same manor as done on the imx8mp-evk.
Setting DMA to threas mode is necessary to prevent FIFO overflows, see
commit 0bc3e333a0c82 ("arm64: dts: imx8mp-evk: configure multiple queues
on eqos")

Signed-off-by: Alexander Stein <alexander.stein at ew.tq-group.com>
---
Changes in v2:
* Rebased to correct branch

 .../freescale/imx8mp-tqma8mpql-mba8mpxl.dts   | 67 +++++++++++++++++++
 1 file changed, 67 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl.dts b/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl.dts
index ad49bf85a04d3..890d1e525a489 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl.dts
@@ -336,6 +336,9 @@ &eqos {
 	pinctrl-0 = <&pinctrl_eqos>, <&pinctrl_eqos_phy>;
 	phy-mode = "rgmii-id";
 	phy-handle = <&ethphy3>;
+	snps,force_thresh_dma_mode;
+	snps,mtl-tx-config = <&mtl_tx_setup>;
+	snps,mtl-rx-config = <&mtl_rx_setup>;
 	status = "okay";
 
 	mdio {
@@ -359,6 +362,70 @@ ethphy3: ethernet-phy at 3 {
 			interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
 		};
 	};
+
+	mtl_tx_setup: tx-queues-config {
+		snps,tx-queues-to-use = <5>;
+
+		queue0 {
+			snps,dcb-algorithm;
+			snps,priority = <0x1>;
+		};
+
+		queue1 {
+			snps,dcb-algorithm;
+			snps,priority = <0x2>;
+		};
+
+		queue2 {
+			snps,dcb-algorithm;
+			snps,priority = <0x4>;
+		};
+
+		queue3 {
+			snps,dcb-algorithm;
+			snps,priority = <0x8>;
+		};
+
+		queue4 {
+			snps,dcb-algorithm;
+			snps,priority = <0xf0>;
+		};
+	};
+
+	mtl_rx_setup: rx-queues-config {
+		snps,rx-queues-to-use = <5>;
+		snps,rx-sched-sp;
+
+		queue0 {
+			snps,dcb-algorithm;
+			snps,priority = <0x1>;
+			snps,map-to-dma-channel = <0>;
+		};
+
+		queue1 {
+			snps,dcb-algorithm;
+			snps,priority = <0x2>;
+			snps,map-to-dma-channel = <1>;
+		};
+
+		queue2 {
+			snps,dcb-algorithm;
+			snps,priority = <0x4>;
+			snps,map-to-dma-channel = <2>;
+		};
+
+		queue3 {
+			snps,dcb-algorithm;
+			snps,priority = <0x8>;
+			snps,map-to-dma-channel = <3>;
+		};
+
+		queue4 {
+			snps,dcb-algorithm;
+			snps,priority = <0xf0>;
+			snps,map-to-dma-channel = <4>;
+		};
+	};
 };
 
 &fec {
-- 
2.43.0