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

MD Danish Anwar posted 3 patches 1 year, 10 months ago
[PATCH v5 2/3] arm64: dts: ti: k3-am642-evm: add ICSSG1 Ethernet support
Posted by MD Danish Anwar 1 year, 10 months ago 
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@ti.com>
Signed-off-by: MD Danish Anwar <danishanwar@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@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@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@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@f {
+		reg = <0xf>;
+		tx-internal-delay-ps = <250>;
+		rx-internal-delay-ps = <2000>;
+	};
+};
-- 
2.34.1
Re: [PATCH v5 2/3] arm64: dts: ti: k3-am642-evm: add ICSSG1 Ethernet support
Posted by Wadim Egorov 1 year, 5 months ago 
Hi,

Am 15.02.24 um 11:30 schrieb 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.

sorry for bumping this old thread, but I was about to add PRU-ICSSG 
nodes for the phyBOARD-Electra and noticed a difference in the firmware 
names.

[snip]
> +	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";

Where do these firmware names come from? All references I can find use 
am65x-sr2*: ti-linux-firmware, meta-ti and so on.
Are we expecting the the names to be renamed for linux-firmware?

Regards,
Wadim

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