[PATCH] arm64: dts: ti: am642-phyboard-electra: Add PRU-ICSSG nodes

From: Wadim Egorov
Date: Tue Jul 09 2024 - 06:12:25 EST

The phyBOARD-Electra implements two Ethernet ports utilizing PRUs.
Add configuration for both mac ports & PHYs.

Signed-off-by: Wadim Egorov <w.egorov@xxxxxxxxx>
---
.../dts/ti/k3-am642-phyboard-electra-rdk.dts | 146 ++++++++++++++++++
1 file changed, 146 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-rdk.dts b/arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-rdk.dts
index 6df331ccb970..364a7582cf99 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-rdk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-rdk.dts
@@ -28,6 +28,8 @@ / {
model = "PHYTEC phyBOARD-Electra-AM64x RDK";

aliases {
+ ethernet1 = &icssg0_emac0;
+ ethernet2 = &icssg0_emac1;
mmc1 = &sdhci1;
serial2 = &main_uart0;
serial3 = &main_uart1;
@@ -55,6 +57,73 @@ can_tc2: can-phy1 {
standby-gpios = <&main_gpio0 35 GPIO_ACTIVE_HIGH>;
};

+ /* Dual Ethernet application node on PRU-ICSSG0 */
+ ethernet {
+ compatible = "ti,am642-icssg-prueth";
+ pinctrl-names = "default";
+ pinctrl-0 = <&icssg0_rgmii1_pins_default &icssg0_rgmii2_pins_default>;
+
+ sram = <&oc_sram>;
+ ti,prus = <&pru0_0>, <&rtu0_0>, <&tx_pru0_0>, <&pru0_1>, <&rtu0_1>, <&tx_pru0_1>;
+ firmware-name = "ti-pruss/am65x-sr2-pru0-prueth-fw.elf",
+ "ti-pruss/am65x-sr2-rtu0-prueth-fw.elf",
+ "ti-pruss/am65x-sr2-txpru0-prueth-fw.elf",
+ "ti-pruss/am65x-sr2-pru1-prueth-fw.elf",
+ "ti-pruss/am65x-sr2-rtu1-prueth-fw.elf",
+ "ti-pruss/am65x-sr2-txpru1-prueth-fw.elf";
+
+ ti,pruss-gp-mux-sel = <2>, /* MII mode */
+ <2>,
+ <2>,
+ <2>, /* MII mode */
+ <2>,
+ <2>;
+
+ ti,mii-g-rt = <&icssg0_mii_g_rt>;
+ ti,mii-rt = <&icssg0_mii_rt>;
+ ti,iep = <&icssg0_iep0>, <&icssg0_iep1>;
+
+ interrupt-parent = <&icssg0_intc>;
+ interrupts = <24 0 2>, <25 1 3>;
+ interrupt-names = "tx_ts0", "tx_ts1";
+
+ dmas = <&main_pktdma 0xc100 15>, /* egress slice 0 */
+ <&main_pktdma 0xc101 15>, /* egress slice 0 */
+ <&main_pktdma 0xc102 15>, /* egress slice 0 */
+ <&main_pktdma 0xc103 15>, /* egress slice 0 */
+ <&main_pktdma 0xc104 15>, /* egress slice 1 */
+ <&main_pktdma 0xc105 15>, /* egress slice 1 */
+ <&main_pktdma 0xc106 15>, /* egress slice 1 */
+ <&main_pktdma 0xc107 15>, /* egress slice 1 */
+ <&main_pktdma 0x4100 15>, /* ingress slice 0 */
+ <&main_pktdma 0x4101 15>; /* ingress slice 1 */
+ dma-names = "tx0-0", "tx0-1", "tx0-2", "tx0-3",
+ "tx1-0", "tx1-1", "tx1-2", "tx1-3",
+ "rx0", "rx1";
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ icssg0_emac0: port@0 {
+ reg = <0>;
+ phy-handle = <&icssg0_phy1>;
+ phy-mode = "rgmii-id";
+ ti,syscon-rgmii-delay = <&main_conf 0x4100>;
+ /* Filled in by bootloader */
+ local-mac-address = [00 00 00 00 00 00];
+ };
+
+ icssg0_emac1: port@1 {
+ reg = <1>;
+ phy-handle = <&icssg0_phy2>;
+ phy-mode = "rgmii-id";
+ ti,syscon-rgmii-delay = <&main_conf 0x4104>;
+ /* Filled in by bootloader */
+ local-mac-address = [00 00 00 00 00 00];
+ };
+ };
+ };
+
keys {
compatible = "gpio-keys";
autorepeat;
@@ -118,6 +187,12 @@ AM64X_IOPAD(0x0090, PIN_OUTPUT, 7) /* (P17) GPMC0_BE0n_CLE.GPIO0_35 */
>;
};

+ clkout0_pins_default: clkout0-default-pins {
+ pinctrl-single,pins = <
+ AM64X_IOPAD(0x0274, PIN_OUTPUT, 5) /* (A19) EXT_REFCLK1.CLKOUT0 */
+ >;
+ };
+
gpio_keys_pins_default: gpio-keys-default-pins {
pinctrl-single,pins = <
AM64X_IOPAD(0x0044, PIN_INPUT, 7) /* (T18) GPMC0_AD2.GPIO0_17 */
@@ -125,6 +200,49 @@ AM64X_IOPAD(0x0054, PIN_INPUT, 7) /* (V20) GPMC0_AD6.GPIO0_21 */
>;
};

+ icssg0_mdio_pins_default: icssg0-mdio-default-pins {
+ pinctrl-single,pins = <
+ AM64X_IOPAD(0x0200, PIN_INPUT, 0) /* (P2) PRG0_MDIO0_MDIO */
+ AM64X_IOPAD(0x0204, PIN_OUTPUT, 0) /* (P3) PRG0_MDIO0_MDC */
+ AM64X_IOPAD(0x01A8, PIN_OUTPUT, 7) /* (V1) PRG0_PRU0_GPO18.GPIO1_18 */
+ AM64X_IOPAD(0x01AC, PIN_OUTPUT, 7) /* (W1) PRG0_PRU0_GPO19.GPIO1_19 */
+ >;
+ };
+
+ icssg0_rgmii1_pins_default: icssg0-rgmii1-default-pins {
+ pinctrl-single,pins = <
+ AM64X_IOPAD(0x0160, PIN_INPUT, 2) /* (Y1) PRG0_PRU0_GPO0.PRG0_RGMII1_RD0 */
+ AM64X_IOPAD(0x0164, PIN_INPUT, 2) /* (R4) PRG0_PRU0_GPO1.PRG0_RGMII1_RD1 */
+ AM64X_IOPAD(0x0168, PIN_INPUT, 2) /* (U2) PRG0_PRU0_GPO2.PRG0_RGMII1_RD2 */
+ AM64X_IOPAD(0x016c, PIN_INPUT, 2) /* (V2) PRG0_PRU0_GPO3.PRG0_RGMII1_RD3 */
+ AM64X_IOPAD(0x0170, PIN_INPUT, 2) /* (AA2) PRG0_PRU0_GPO4.PRG0_RGMII1_RX_CTL */
+ AM64X_IOPAD(0x0178, PIN_INPUT, 2) /* (T3) PRG0_PRU0_GPO6.PRG0_RGMII1_RXC */
+ AM64X_IOPAD(0x018c, PIN_OUTPUT, 2) /* (Y3) PRG0_PRU0_GPO11.PRG0_RGMII1_TD0 */
+ AM64X_IOPAD(0x0190, PIN_OUTPUT, 2) /* (AA3) PRG0_PRU0_GPO12.PRG0_RGMII1_TD1 */
+ AM64X_IOPAD(0x0194, PIN_OUTPUT, 2) /* (R6) PRG0_PRU0_GPO13.PRG0_RGMII1_TD2 */
+ AM64X_IOPAD(0x0198, PIN_OUTPUT, 2) /* (V4) PRG0_PRU0_GPO14.PRG0_RGMII1_TD3 */
+ AM64X_IOPAD(0x019c, PIN_OUTPUT, 2) /* (T5) PRG0_PRU0_GPO15.PRG0_RGMII1_TX_CTL */
+ AM64X_IOPAD(0x01a0, PIN_OUTPUT, 2) /* (U4) PRG0_PRU0_GPO16.PRG0_RGMII1_TXC */
+ >;
+ };
+
+ icssg0_rgmii2_pins_default: icssg0-rgmii2-default-pins {
+ pinctrl-single,pins = <
+ AM64X_IOPAD(0x01b0, PIN_INPUT, 2) /* (Y2) PRG0_PRU1_GPO0.PRG0_RGMII2_RD0 */
+ AM64X_IOPAD(0x01b4, PIN_INPUT, 2) /* (W2) PRG0_PRU1_GPO1.PRG0_RGMII2_RD1 */
+ AM64X_IOPAD(0x01b8, PIN_INPUT, 2) /* (V3) PRG0_PRU1_GPO2.PRG0_RGMII2_RD2 */
+ AM64X_IOPAD(0x01bc, PIN_INPUT, 2) /* (T4) PRG0_PRU1_GPO3.PRG0_RGMII2_RD3 */
+ AM64X_IOPAD(0x01c0, PIN_INPUT, 2) /* (W3) PRG0_PRU1_GPO4.PRG0_RGMII2_RX_CTL */
+ AM64X_IOPAD(0x01c8, PIN_INPUT, 2) /* (R5) PRG0_PRU1_GPO6.PRG0_RGMII2_RXC */
+ AM64X_IOPAD(0x01dc, PIN_OUTPUT, 2) /* (W4) PRG0_PRU1_GPO11.PRG0_RGMII2_TD0 */
+ AM64X_IOPAD(0x01e0, PIN_OUTPUT, 2) /* (Y4) PRG0_PRU1_GPO12.PRG0_RGMII2_TD1 */
+ AM64X_IOPAD(0x01e4, PIN_OUTPUT, 2) /* (T6) PRG0_PRU1_GPO13.PRG0_RGMII2_TD2 */
+ AM64X_IOPAD(0x01e8, PIN_OUTPUT, 2) /* (U6) PRG0_PRU1_GPO14.PRG0_RGMII2_TD3 */
+ AM64X_IOPAD(0x01ec, PIN_OUTPUT, 2) /* (U5) PRG0_PRU1_GPO15.PRG0_RGMII2_TX_CTL */
+ AM64X_IOPAD(0x01f0, PIN_OUTPUT, 2) /* (AA4) PRG0_PRU1_GPO16.PRG0_RGMII2_TXC */
+ >;
+ };
+
main_i2c1_pins_default: main-i2c1-default-pins {
pinctrl-single,pins = <
AM64X_IOPAD(0x0268, PIN_INPUT, 0) /* (C18) I2C1_SCL */
@@ -210,6 +328,34 @@ AM64X_IOPAD(0x0040, PIN_OUTPUT, 7) /* (U21) GPMC0_AD1.GPIO0_16 */
};
};

+&icssg0_mdio {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&icssg0_mdio_pins_default &clkout0_pins_default>;
+
+ icssg0_phy1: ethernet-phy@1 {
+ compatible = "ethernet-phy-id2000.a231", "ethernet-phy-ieee802.3-c22";
+ reg = <0x1>;
+ ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
+ tx-fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+ rx-fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+ reset-gpios = <&main_gpio1 18 GPIO_ACTIVE_LOW>;
+ reset-assert-us = <1000>;
+ reset-deassert-us = <1000>;
+ };
+
+ icssg0_phy2: ethernet-phy@2 {
+ compatible = "ethernet-phy-id2000.a231", "ethernet-phy-ieee802.3-c22";
+ reg = <0x2>;
+ ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
+ tx-fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+ rx-fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+ reset-gpios = <&main_gpio1 19 GPIO_ACTIVE_LOW>;
+ reset-assert-us = <1000>;
+ reset-deassert-us = <1000>;
+ };
+};
+
&main_i2c1 {
status = "okay";
pinctrl-names = "default";
--
2.34.1