arm64: dts: ti: iot2050: Add icssg-prueth nodes for PG2 devices

Add the required nodes to enable ICSSG SR2.0 based prueth networking.

As the driver still needs to be extended for SR1.0 support, keep related
nodes disabled on PG1 devices.

Signed-off-by: Jan Kiszka <[email protected]>
Link: https://lore.kernel.org/r/565d31a5fd29c4dd0cf28e347049a1247a6e446c.1699087938.git.jan.kiszka@siemens.com
Signed-off-by: Nishanth Menon <[email protected]>

2 files changed, 137 insertions, 1 deletions

diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg1.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg1.dtsi
index 51f902fa35a7..1d1979859583 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg1.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg1.dtsi
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (c) Siemens AG, 2021
+ * Copyright (c) Siemens AG, 2021-2023
  *
  * Authors:
  *   Jan Kiszka <[email protected]>
@@ -44,3 +44,11 @@
 &tx_pru2_1 {
 	status = "disabled";
 };
+
+&icssg0_eth {
+	status = "disabled";
+};
+
+&icssg0_mdio {
+	status = "disabled";
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
index d2b6439cf496..ab1dffa5c1c6 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
@@ -11,6 +11,7 @@
 
 #include "k3-am654.dtsi"
 #include <dt-bindings/phy/phy.h>
+#include <dt-bindings/net/ti-dp83867.h>
 
 / {
 	aliases {
@@ -27,6 +28,8 @@
 		spi0 = &mcu_spi0;
 		mmc0 = &sdhci1;
 		mmc1 = &sdhci0;
+		ethernet1 = &icssg0_emac0;
+		ethernet2 = &icssg0_emac1;
 	};
 
 	chosen {
@@ -111,6 +114,76 @@
 		#clock-cells = <0>;
 		clock-frequency = <19200000>;
 	};
+
+	/* Dual Ethernet application node on PRU-ICSSG0 */
+	icssg0_eth: icssg0-eth {
+		compatible = "ti,am654-icssg-prueth";
+		pinctrl-names = "default";
+		pinctrl-0 = <&icssg0_rgmii_pins_default>;
+		sram = <&msmc_ram>;
+
+		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_udmap 0xc100>, /* egress slice 0 */
+		       <&main_udmap 0xc101>, /* egress slice 0 */
+		       <&main_udmap 0xc102>, /* egress slice 0 */
+		       <&main_udmap 0xc103>, /* egress slice 0 */
+		       <&main_udmap 0xc104>, /* egress slice 1 */
+		       <&main_udmap 0xc105>, /* egress slice 1 */
+		       <&main_udmap 0xc106>, /* egress slice 1 */
+		       <&main_udmap 0xc107>, /* egress slice 1 */
+		       <&main_udmap 0x4100>, /* ingress slice 0 */
+		       <&main_udmap 0x4101>; /* 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_eth0_phy>;
+				phy-mode = "rgmii-id";
+				ti,syscon-rgmii-delay = <&scm_conf 0x4100>;
+				ti,half-duplex-capable;
+				/* Filled in by bootloader */
+				local-mac-address = [00 00 00 00 00 00];
+			};
+
+			icssg0_emac1: port@1 {
+				reg = <1>;
+				phy-handle = <&icssg0_eth1_phy>;
+				phy-mode = "rgmii-id";
+				ti,syscon-rgmii-delay = <&scm_conf 0x4104>;
+				ti,half-duplex-capable;
+				/* Filled in by bootloader */
+				local-mac-address = [00 00 00 00 00 00];
+			};
+		};
+	};
 };
 
 &wkup_pmx0 {
@@ -944,6 +1017,43 @@
 			AM65X_IOPAD(0x0070, PIN_INPUT,  5)  /* (R25) I2C2_SDA */
 		>;
 	};
+
+	icssg0_mdio_pins_default: icssg0-mdio-default-pins {
+		pinctrl-single,pins = <
+			AM65X_IOPAD(0x0294, PIN_INPUT, 0) /* (AE26) PRG0_MDIO0_MDIO */
+			AM65X_IOPAD(0x0298, PIN_OUTPUT, 0) /* (AE28) PRG0_MDIO0_MDC */
+		>;
+	};
+
+	icssg0_rgmii_pins_default: icssg0-rgmii-default-pins {
+		pinctrl-single,pins = <
+			AM65X_IOPAD(0x0244, PIN_INPUT, 2) /* (AB28) PRG0_PRU1_GPO0.PRG0_RGMII2_RD0 */
+			AM65X_IOPAD(0x0248, PIN_INPUT, 2) /* (AC28) PRG0_PRU1_GPO1.PRG0_RGMII2_RD1 */
+			AM65X_IOPAD(0x024c, PIN_INPUT, 2) /* (AC27) PRG0_PRU1_GPO2.PRG0_RGMII2_RD2 */
+			AM65X_IOPAD(0x0250, PIN_INPUT, 2) /* (AB26) PRG0_PRU1_GPO3.PRG0_RGMII2_RD3 */
+			AM65X_IOPAD(0x0274, PIN_OUTPUT, 2) /* (AC25) PRG0_PRU1_GPO12.PRG0_RGMII2_TD0 */
+			AM65X_IOPAD(0x0278, PIN_OUTPUT, 2) /* (AD25) PRG0_PRU1_GPO13.PRG0_RGMII2_TD1 */
+			AM65X_IOPAD(0x027c, PIN_OUTPUT, 2) /* (AD24) PRG0_PRU1_GPO14.PRG0_RGMII2_TD2 */
+			AM65X_IOPAD(0x0280, PIN_OUTPUT, 2) /* (AE27) PRG0_PRU1_GPO15.PRG0_RGMII2_TD3 */
+			AM65X_IOPAD(0x0284, PIN_INPUT, 2) /* (AC24) PRG0_PRU1_GPO16.PRG0_RGMII2_TXC */
+			AM65X_IOPAD(0x0270, PIN_OUTPUT, 2) /* (AB24) PRG0_PRU1_GPO11.PRG0_RGMII2_TX_CTL */
+			AM65X_IOPAD(0x025c, PIN_INPUT, 2) /* (AB27) PRG0_PRU1_GPO6.PRG0_RGMII2_RXC */
+			AM65X_IOPAD(0x0254, PIN_INPUT, 2) /* (AA25) PRG0_PRU1_GPO4.PRG0_RGMII2_RX_CTL */
+
+			AM65X_IOPAD(0x01f4, PIN_INPUT, 2) /* (V24) PRG0_PRU0_GPO0.PRG0_RGMII1_RD0 */
+			AM65X_IOPAD(0x01f8, PIN_INPUT, 2) /* (W25) PRG0_PRU0_GPO1.PRG0_RGMII1_RD1 */
+			AM65X_IOPAD(0x01fc, PIN_INPUT, 2) /* (W24) PRG0_PRU0_GPO2.PRG0_RGMII1_RD2 */
+			AM65X_IOPAD(0x0200, PIN_INPUT, 2) /* (AA27) PRG0_PRU0_GPO3.PRG0_RGMII1_RD3 */
+			AM65X_IOPAD(0x0224, PIN_OUTPUT, 2) /* (AD27) PRG0_PRU0_GPO12.PRG0_RGMII1_TD0 */
+			AM65X_IOPAD(0x0228, PIN_OUTPUT, 2) /* (AC26) PRG0_PRU0_GPO13.PRG0_RGMII1_TD1 */
+			AM65X_IOPAD(0x022c, PIN_OUTPUT, 2) /* (AD26) PRG0_PRU0_GPO14.PRG0_RGMII1_TD2 */
+			AM65X_IOPAD(0x0230, PIN_OUTPUT, 2) /* (AA24) PRG0_PRU0_GPO15.PRG0_RGMII1_TD3 */
+			AM65X_IOPAD(0x0234, PIN_INPUT, 2) /* (AD28) PRG0_PRU0_GPO16.PRG0_RGMII1_TXC */
+			AM65X_IOPAD(0x0220, PIN_OUTPUT, 2) /* (AB25) PRG0_PRU0_GPO11.PRG0_RGMII1_TX_CTL */
+			AM65X_IOPAD(0x020c, PIN_INPUT, 2) /* (Y25) PRG0_PRU0_GPO6.PRG0_RGMII1_RXC */
+			AM65X_IOPAD(0x0204, PIN_INPUT, 2) /* (Y24) PRG0_PRU0_GPO4.PRG0_RGMII1_RX_CTL */
+		>;
+	};
 };
 
 &main_pmx1 {
@@ -1316,3 +1426,21 @@
 			<&mcu_r5fss0_core1_memory_region>;
 	mboxes = <&mailbox0_cluster1>, <&mbox_mcu_r5fss0_core1>;
 };
+
+&icssg0_mdio {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&icssg0_mdio_pins_default>;
+
+	icssg0_eth0_phy: ethernet-phy@0 {
+		reg = <0>;
+		ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
+		ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+	};
+
+	icssg0_eth1_phy: ethernet-phy@1 {
+		reg = <1>;
+		ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
+		ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+	};
+};