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

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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
This commit is contained in:
Andrew Halaney 2023-05-01 15:51:05 -05:00 committed by Bjorn Andersson
parent b405d8d500
commit 57827e87be
1 changed files with 238 additions and 0 deletions
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238
arch/arm64/boot/dts/qcom/sa8540p-ride.dts
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@ -151,6 +151,184 @@ vreg_l8g: ldo8 {
};
};
&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 @@ &xo_board_clk {
/* 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";