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Subject[PATCH net-next 1/2] arm64: dts: imx8mp-evk: configure multiple queues on eqos
Date
Eqos ethernet support five queues on hardware, enable these queues and
configure the priority of each queue. Uses Strict Priority as scheduling
algorithms to ensure that the TSN function works.

Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
---
arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 41 ++++++++++++++++++++
1 file changed, 41 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
index 7b99fad6e4d6..1e523b3d122b 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
@@ -86,6 +86,9 @@
pinctrl-0 = <&pinctrl_eqos>;
phy-mode = "rgmii-id";
phy-handle = <&ethphy0>;
+ snps,force_thresh_dma_mode;
+ snps,mtl-tx-config = <&mtl_tx_setup>;
+ snps,mtl-rx-config = <&mtl_rx_setup>;
status = "okay";

mdio {
@@ -99,6 +102,44 @@
eee-broken-1000t;
};
};
+
+ mtl_tx_setup: tx-queues-config {
+ snps,tx-queues-to-use = <5>;
+ queue0 {
+ snps,priority = <0x0>;
+ };
+ queue1 {
+ snps,priority = <0x1>;
+ };
+ queue2 {
+ snps,priority = <0x2>;
+ };
+ queue3 {
+ snps,priority = <0x3>;
+ };
+ queue4 {
+ snps,priority = <0x4>;
+ };
+ };
+
+ mtl_rx_setup: rx-queues-config {
+ snps,rx-queues-to-use = <5>;
+ queue0 {
+ snps,priority = <0x0>;
+ };
+ queue1 {
+ snps,priority = <0x1>;
+ };
+ queue2 {
+ snps,priority = <0x2>;
+ };
+ queue3 {
+ snps,priority = <0x3>;
+ };
+ queue4 {
+ snps,priority = <0x4>;
+ };
+ };
};

&fec {
--
2.17.1
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