arm64: dts: qcom: sa8540p-ride: Add ethernet nodes

Enable both the MACs found on the board.

ethernet0 and ethernet1 both ultimately go to a series of on board
switches which aren't managed by this processor.

ethernet0 is connected to a Marvell 88EA1512 phy via RGMII. That goes to
the series of switches via SGMII on the "media" side of the phy.
RGMII_SGMII mode is enabled via devicetree register descriptions.
The switch on the "media" side has auto-negotiation disabled, so
configuration from userspace similar to:

        ethtool -s eth0 autoneg off speed 1000 duplex full

is necessary to get traffic flowing on that interface.

ethernet1 is in a mac2mac/fixed-link configuration going to the same
series of switches directly via RGMII.

Tested-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230501205105.2518373-3-ahalaney@redhat.com

diff --git a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
index 24fa449..21e9eaf 100644 (file)
--- a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
+++ b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
@@ -151,6 +151,184 @@
        };
 };
 
+&ethernet0 {
+       snps,mtl-rx-config = <&ethernet0_mtl_rx_setup>;
+       snps,mtl-tx-config = <&ethernet0_mtl_tx_setup>;
+
+       max-speed = <1000>;
+       phy-handle = <&rgmii_phy>;
+       phy-mode = "rgmii-txid";
+
+       pinctrl-names = "default";
+       pinctrl-0 = <&ethernet0_default>;
+
+       status = "okay";
+
+       mdio {
+               compatible = "snps,dwmac-mdio";
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               /* Marvell 88EA1512 */
+               rgmii_phy: phy@8 {
+                       reg = <0x8>;
+
+                       interrupts-extended = <&tlmm 127 IRQ_TYPE_EDGE_FALLING>;
+
+                       reset-gpios = <&pmm8540c_gpios 1 GPIO_ACTIVE_LOW>;
+                       reset-assert-us = <11000>;
+                       reset-deassert-us = <70000>;
+
+                       device_type = "ethernet-phy";
+
+                       /* Set to RGMII_SGMII mode and soft reset. Turn off auto-negotiation
+                        * from userspace to talk to the switch on the SGMII side of things
+                        */
+                       marvell,reg-init =
+                               /* Set MODE[2:0] to RGMII_SGMII */
+                               <0x12 0x14 0xfff8 0x4>,
+                               /* Soft reset required after changing MODE[2:0] */
+                               <0x12 0x14 0x7fff 0x8000>;
+               };
+       };
+
+       ethernet0_mtl_rx_setup: rx-queues-config {
+               snps,rx-queues-to-use = <1>;
+               snps,rx-sched-sp;
+
+               queue0 {
+                       snps,dcb-algorithm;
+                       snps,map-to-dma-channel = <0x0>;
+                       snps,route-up;
+                       snps,priority = <0x1>;
+               };
+
+               queue1 {
+                       snps,dcb-algorithm;
+                       snps,map-to-dma-channel = <0x1>;
+                       snps,route-ptp;
+               };
+
+               queue2 {
+                       snps,avb-algorithm;
+                       snps,map-to-dma-channel = <0x2>;
+                       snps,route-avcp;
+               };
+
+               queue3 {
+                       snps,avb-algorithm;
+                       snps,map-to-dma-channel = <0x3>;
+                       snps,priority = <0xc>;
+               };
+       };
+
+       ethernet0_mtl_tx_setup: tx-queues-config {
+               snps,tx-queues-to-use = <1>;
+               snps,tx-sched-sp;
+
+               queue0 {
+                       snps,dcb-algorithm;
+               };
+
+               queue1 {
+                       snps,dcb-algorithm;
+               };
+
+               queue2 {
+                       snps,avb-algorithm;
+                       snps,send_slope = <0x1000>;
+                       snps,idle_slope = <0x1000>;
+                       snps,high_credit = <0x3e800>;
+                       snps,low_credit = <0xffc18000>;
+               };
+
+               queue3 {
+                       snps,avb-algorithm;
+                       snps,send_slope = <0x1000>;
+                       snps,idle_slope = <0x1000>;
+                       snps,high_credit = <0x3e800>;
+                       snps,low_credit = <0xffc18000>;
+               };
+       };
+};
+
+&ethernet1 {
+       snps,mtl-rx-config = <&ethernet1_mtl_rx_setup>;
+       snps,mtl-tx-config = <&ethernet1_mtl_tx_setup>;
+
+       max-speed = <1000>;
+       phy-mode = "rgmii-txid";
+
+       pinctrl-names = "default";
+       pinctrl-0 = <&ethernet1_default>;
+
+       status = "okay";
+
+       fixed-link {
+               speed = <1000>;
+               full-duplex;
+       };
+
+       ethernet1_mtl_rx_setup: rx-queues-config {
+               snps,rx-queues-to-use = <1>;
+               snps,rx-sched-sp;
+
+               queue0 {
+                       snps,dcb-algorithm;
+                       snps,map-to-dma-channel = <0x0>;
+                       snps,route-up;
+                       snps,priority = <0x1>;
+               };
+
+               queue1 {
+                       snps,dcb-algorithm;
+                       snps,map-to-dma-channel = <0x1>;
+                       snps,route-ptp;
+               };
+
+               queue2 {
+                       snps,avb-algorithm;
+                       snps,map-to-dma-channel = <0x2>;
+                       snps,route-avcp;
+               };
+
+               queue3 {
+                       snps,avb-algorithm;
+                       snps,map-to-dma-channel = <0x3>;
+                       snps,priority = <0xc>;
+               };
+       };
+
+       ethernet1_mtl_tx_setup: tx-queues-config {
+               snps,tx-queues-to-use = <1>;
+               snps,tx-sched-sp;
+
+               queue0 {
+                       snps,dcb-algorithm;
+               };
+
+               queue1 {
+                       snps,dcb-algorithm;
+               };
+
+               queue2 {
+                       snps,avb-algorithm;
+                       snps,send_slope = <0x1000>;
+                       snps,idle_slope = <0x1000>;
+                       snps,high_credit = <0x3e800>;
+                       snps,low_credit = <0xffc18000>;
+               };
+
+               queue3 {
+                       snps,avb-algorithm;
+                       snps,send_slope = <0x1000>;
+                       snps,idle_slope = <0x1000>;
+                       snps,high_credit = <0x3e800>;
+                       snps,low_credit = <0xffc18000>;
+               };
+       };
+};
+
 &i2c0 {
        pinctrl-names = "default";
        pinctrl-0 = <&i2c0_default>;
@@ -316,6 +494,66 @@
 /* PINCTRL */
 
 &tlmm {
+       ethernet0_default: ethernet0-default-state {
+               mdc-pins {
+                       pins = "gpio175";
+                       function = "rgmii_0";
+                       drive-strength = <16>;
+                       bias-pull-up;
+               };
+
+               mdio-pins {
+                       pins = "gpio176";
+                       function = "rgmii_0";
+                       drive-strength = <16>;
+                       bias-pull-up;
+               };
+
+               rgmii-tx-pins {
+                       pins = "gpio183", "gpio184", "gpio185", "gpio186", "gpio187", "gpio188";
+                       function = "rgmii_0";
+                       drive-strength = <16>;
+                       bias-pull-up;
+               };
+
+               rgmii-rx-pins {
+                       pins = "gpio177", "gpio178", "gpio179", "gpio180", "gpio181", "gpio182";
+                       function = "rgmii_0";
+                       drive-strength = <16>;
+                       bias-disable;
+               };
+       };
+
+       ethernet1_default: ethernet1-default-state {
+               mdc-pins {
+                       pins = "gpio97";
+                       function = "rgmii_1";
+                       drive-strength = <16>;
+                       bias-pull-up;
+               };
+
+               mdio-pins {
+                       pins = "gpio98";
+                       function = "rgmii_1";
+                       drive-strength = <16>;
+                       bias-pull-up;
+               };
+
+               rgmii-tx-pins {
+                       pins = "gpio105", "gpio106", "gpio107", "gpio108", "gpio109", "gpio110";
+                       function = "rgmii_1";
+                       drive-strength = <16>;
+                       bias-pull-up;
+               };
+
+               rgmii-rx-pins {
+                       pins = "gpio99", "gpio100", "gpio101", "gpio102", "gpio103", "gpio104";
+                       function = "rgmii_1";
+                       drive-strength = <16>;
+                       bias-disable;
+               };
+       };
+
        i2c0_default: i2c0-default-state {
                /* To USB7002T-I/KDXVA0 USB hub (SIP1 only) */
                pins = "gpio135", "gpio136";