[PATCH v5 2/3] arm64: dts: ti: k3-am642-evm: add ICSSG1 Ethernet support

[MD Danish Anwar]

ICSSG1 provides dual Gigabit Ethernet support with proper FW loaded.

The ICSSG1 MII0 (RGMII1) has DP83869 PHY attached to it. The ICSSG1 shares
MII1 (RGMII2) PHY DP83869 with CPSW3g and it's assigned by default to
CPSW3g. The MDIO access to MII1 (RGMII2) PHY DP83869 is controlled by MDIO
bus switch and also assigned to CPSW3g. Therefore the ICSSG1 MII1 (RGMII2)
port is kept disable and ICSSG1 is enabled in single MAC mode by
default.

Reviewed-by: Ravi Gunasekaran <r-gunasekaran at ti.com>
Signed-off-by: MD Danish Anwar <danishanwar at ti.com>
---
 arch/arm64/boot/dts/ti/k3-am642-evm.dts | 95 +++++++++++++++++++++++++
 1 file changed, 95 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index 5c546ae76d3e..daa925106856 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -32,6 +32,7 @@ aliases {
 		mmc1 = &sdhci1;
 		ethernet0 = &cpsw_port1;
 		ethernet1 = &cpsw_port2;
+		ethernet2 = &icssg1_emac0;
 	};
 
 	memory at 80000000 {
@@ -229,6 +230,64 @@ transceiver2: can-phy1 {
 		max-bitrate = <5000000>;
 		standby-gpios = <&exp1 9 GPIO_ACTIVE_HIGH>;
 	};
+
+	icssg1_eth: icssg1-eth {
+		compatible = "ti,am642-icssg-prueth";
+		pinctrl-names = "default";
+		pinctrl-0 = <&icssg1_rgmii1_pins_default>;
+		sram = <&oc_sram>;
+		ti,prus = <&pru1_0>, <&rtu1_0>, <&tx_pru1_0>, <&pru1_1>, <&rtu1_1>, <&tx_pru1_1>;
+		firmware-name = "ti-pruss/am64x-sr2-pru0-prueth-fw.elf",
+				"ti-pruss/am64x-sr2-rtu0-prueth-fw.elf",
+				"ti-pruss/am64x-sr2-txpru0-prueth-fw.elf",
+				"ti-pruss/am64x-sr2-pru1-prueth-fw.elf",
+				"ti-pruss/am64x-sr2-rtu1-prueth-fw.elf",
+				"ti-pruss/am64x-sr2-txpru1-prueth-fw.elf";
+
+		ti,pruss-gp-mux-sel = <2>,	/* MII mode */
+				      <2>,
+				      <2>,
+				      <2>,	/* MII mode */
+				      <2>,
+				      <2>;
+		ti,mii-g-rt = <&icssg1_mii_g_rt>;
+		ti,mii-rt = <&icssg1_mii_rt>;
+		ti,iep = <&icssg1_iep0>,  <&icssg1_iep1>;
+		interrupt-parent = <&icssg1_intc>;
+		interrupts = <24 0 2>, <25 1 3>;
+		interrupt-names = "tx_ts0", "tx_ts1";
+		dmas = <&main_pktdma 0xc200 15>, /* egress slice 0 */
+		       <&main_pktdma 0xc201 15>, /* egress slice 0 */
+		       <&main_pktdma 0xc202 15>, /* egress slice 0 */
+		       <&main_pktdma 0xc203 15>, /* egress slice 0 */
+		       <&main_pktdma 0xc204 15>, /* egress slice 1 */
+		       <&main_pktdma 0xc205 15>, /* egress slice 1 */
+		       <&main_pktdma 0xc206 15>, /* egress slice 1 */
+		       <&main_pktdma 0xc207 15>, /* egress slice 1 */
+		       <&main_pktdma 0x4200 15>, /* ingress slice 0 */
+		       <&main_pktdma 0x4201 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>;
+			icssg1_emac0: port at 0 {
+				reg = <0>;
+				phy-handle = <&icssg1_phy1>;
+				phy-mode = "rgmii-id";
+				/* Filled in by bootloader */
+				local-mac-address = [00 00 00 00 00 00];
+			};
+			icssg1_emac1: port at 1 {
+				reg = <1>;
+				/* Filled in by bootloader */
+				local-mac-address = [00 00 00 00 00 00];
+				status = "disabled";
+			};
+		};
+	};
 };
 
 &main_pmx0 {
@@ -383,6 +442,30 @@ ddr_vtt_pins_default: ddr-vtt-default-pins {
 			AM64X_IOPAD(0x0030, PIN_OUTPUT_PULLUP, 7) /* (L18) OSPI0_CSN1.GPIO0_12 */
 		>;
 	};
+
+	icssg1_mdio1_pins_default: icssg1-mdio1-default-pins {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x015c, PIN_OUTPUT, 0) /* (Y6) PRG1_MDIO0_MDC */
+			AM64X_IOPAD(0x0158, PIN_INPUT, 0) /* (AA6) PRG1_MDIO0_MDIO */
+		>;
+	};
+
+	icssg1_rgmii1_pins_default: icssg1-rgmii1-default-pins{
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x00b8, PIN_INPUT, 2) /* (Y7) PRG1_PRU0_GPO0.PRG1_RGMII1_RD0 */
+			AM64X_IOPAD(0x00bc, PIN_INPUT, 2) /* (U8) PRG1_PRU0_GPO1.PRG1_RGMII1_RD1 */
+			AM64X_IOPAD(0x00c0, PIN_INPUT, 2) /* (W8) PRG1_PRU0_GPO2.PRG1_RGMII1_RD2 */
+			AM64X_IOPAD(0x00c4, PIN_INPUT, 2) /* (V8) PRG1_PRU0_GPO3.PRG1_RGMII1_RD3 */
+			AM64X_IOPAD(0x00d0, PIN_INPUT, 2) /* (AA7) PRG1_PRU0_GPO6.PRG1_RGMII1_RXC */
+			AM64X_IOPAD(0x00c8, PIN_INPUT, 2) /* (Y8) PRG1_PRU0_GPO4.PRG1_RGMII1_RX_CTL */
+			AM64X_IOPAD(0x00e4, PIN_INPUT, 2) /* (AA8) PRG1_PRU0_GPO11.PRG1_RGMII1_TD0 */
+			AM64X_IOPAD(0x00e8, PIN_INPUT, 2) /* (U9) PRG1_PRU0_GPO12.PRG1_RGMII1_TD1 */
+			AM64X_IOPAD(0x00ec, PIN_INPUT, 2) /* (W9) PRG1_PRU0_GPO13.PRG1_RGMII1_TD2 */
+			AM64X_IOPAD(0x00f0, PIN_INPUT, 2) /* (AA9) PRG1_PRU0_GPO14.PRG1_RGMII1_TD3 */
+			AM64X_IOPAD(0x00f8, PIN_INPUT, 2) /* (V9) PRG1_PRU0_GPO16.PRG1_RGMII1_TXC */
+			AM64X_IOPAD(0x00f4, PIN_INPUT, 2) /* (Y9) PRG1_PRU0_GPO15.PRG1_RGMII1_TX_CTL */
+		>;
+	};
 };
 
 &main_uart0 {
@@ -725,3 +808,15 @@ &main_mcan1 {
 	pinctrl-0 = <&main_mcan1_pins_default>;
 	phys = <&transceiver2>;
 };
+
+&icssg1_mdio {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&icssg1_mdio1_pins_default>;
+
+	icssg1_phy1: ethernet-phy at f {
+		reg = <0xf>;
+		tx-internal-delay-ps = <250>;
+		rx-internal-delay-ps = <2000>;
+	};
+};
-- 
2.34.1