[PATCH v7 0/4] arm64: dts: add description for solidrun am642 som and hummingboard evb

[PATCH v7 0/4] arm64: dts: add description for solidrun am642 som and hummingboard evb

[Josua Mayer]

This series adds DT bindings and dts descriptions for SolidRun AM642
based SoM and Hummingboard EVB.

Additionally a commit from downstream vendor kernel are included,
enhancing support for pru based ethernet.
I wasn't sure how to properly annotate it in commit description /
signed-off area ...:

1. add description for "Industrial Ethernet Peripherals" (IEP) to am64
   https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/commit/arch/arm64/boot/dts/ti/k3-am64-main.dtsi?h=ti-linux-6.1.y-cicd&id=5afb73d82a014b59462162d960b350b8c58e5ae6
   IEP is already supported in-tree by a driver, and used in
   k3-am65-main.dtsi.

To avoid introducing new dtbs_check errors, respective patches were
submitted via rtc, mtd and iio trees.

Only one error remains which is common to all k3-am64:

- 'mux-controller' does not match any of the regexes

To: Nishanth Menon <nm@ti.com>
To: Vignesh Raghavendra <vigneshr@ti.com>
To: Tero Kristo <kristo@kernel.org>
To: Rob Herring <robh+dt@kernel.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
To: Conor Dooley <conor+dt@kernel.org>
Cc: Yazan Shhady <yazan.shhady@solid-run.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Josua Mayer <josua@solid-run.com>

Changes in v7:
- split rtc, iio, mtd bindings to go via respective trees:
  - iio: https://lore.kernel.org/r/20240219-iio-hdc20x0-interrupt-binding-v7-1-c8ffb39c3768@solid-run.com
  - mtd: https://lore.kernel.org/r/20240219-mtd-flash-interrupt-binding-v7-1-206e30a656fa@solid-run.com
  - rtc: https://lore.kernel.org/r/20240219-rtc-abracon-convert-bindings-v7-1-aca4fc3b8cec@solid-run.com
- Link to v6: https://lore.kernel.org/r/20240212-add-am64-som-v6-0-b59edb2bc8c3@solid-run.com

Changes in v6:
- renamed pinctrl nodes to *-default-pins
  (reported by Vignesh Raghavendra <vigneshr@ti.com>)
  (dropped Reviewed-by: Andrew Davis <afd@ti.com> because all the rename)
- removed tabs from pinctrl comments to shorten lines
- updated humidity sensor yaml with interrupts property
- updated spi-nor flash yaml with interrupts property
- Link to v5: https://lore.kernel.org/r/20240211-add-am64-som-v5-0-790ed7121249@solid-run.com

Changes in v5:
- abracon,abx80x.yaml:
  - reworded 'compatible' description
  - removed $ref to interrupts.yaml
  - nested example in fake i2c
  - changed maintainer to rtc list
  (reported by Conor Dooley <conor@kernel.org>)
- patch 4/5 dts:
  - re-added status properties for sdhci nodes
    k3-am64-main.dtsi has been changed in-tree since v1
    such that sdhci nodes are explicitly status disabled now.
  - picked up reviewed-by
  (reported by Andrew Davis <afd@ti.com>)
- Link to v4: https://lore.kernel.org/r/20240202-add-am64-som-v4-0-5f8b12af5e71@solid-run.com

Changes in v4:
- abracon,abx80x.yaml: fixed dtc error in example irq reference
- Link to v3: https://lore.kernel.org/r/20240202-add-am64-som-v3-0-2f44023d50e9@solid-run.com

Changes in v3:
- removed lots more status properties, double-checked against soc dtsi
  (reported by Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>)
  (reported by Andrew Davis <afd@ti.com>)
- removed intentionally-disabled pcie node from dts
- rewrote yaml bindings to use enum instead of anyof+const+description
  (reported by Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>)
- abracon yaml
  - added missing maintainer
  - added diode type property type
  - added example
  (reported by Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>)
  - added reference to /schemas/interrupts.yaml#
- use generic name for pru ethernet controller node
  (reported by Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>)
- removed unnamed dmas from pru ethernet controller node
- moved pcie/usb3 features to dtb overlays
- Link to v2: https://lore.kernel.org/r/20240112-add-am64-som-v2-0-1385246c428c@solid-run.com

Changes in v2:
- reordered patchset to drop separate patch adding iep handle to som
- moved dtbs_check warnings to cover letter
- converted abracon abx80x rtc bindings to yaml
- updated dts:
  - remove unnecessary status properties
  - changed non-generic node names
  - use color property for led descriptions,
    they have no default function on evaluation board
  - drop earlycon bootargs from chosen node
  (reported by Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>)
- converted charger node to comment, part not assembled, has no bindings
- picked up acked-by on board bindings patch
- Link to v1: https://lore.kernel.org/r/20240103-add-am64-som-v1-0-dda1f9227aef@solid-run.com

---
Josua Mayer (3):
      dt-bindings: arm: ti: Add bindings for SolidRun AM642 HummingBoard-T
      arm64: dts: add description for solidrun am642 som and evaluation board
      arm64: dts: ti: hummingboard-t: add overlays for m.2 pci-e and usb-3

Suman Anna (1):
      arm64: dts: ti: k3-am64-main: Add ICSSG IEP nodes

 Documentation/devicetree/bindings/arm/ti/k3.yaml   |   7 +
 arch/arm64/boot/dts/ti/Makefile                    |   7 +
 arch/arm64/boot/dts/ti/k3-am64-main.dtsi           |  24 +
 .../boot/dts/ti/k3-am642-hummingboard-t-pcie.dtso  |  45 ++
 .../boot/dts/ti/k3-am642-hummingboard-t-usb3.dtso  |  44 ++
 arch/arm64/boot/dts/ti/k3-am642-hummingboard-t.dts | 292 ++++++++++
 arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi        | 594 +++++++++++++++++++++
 7 files changed, 1013 insertions(+)
---
base-commit: 83d0ff463b50d2395e05339a34e35d14ba82043f
change-id: 20240101-add-am64-som-51a1ca47edf3

Best regards,
-- 
Josua Mayer <josua@solid-run.com>

[PATCH v7 1/4] dt-bindings: arm: ti: Add bindings for SolidRun AM642 HummingBoard-T

[Josua Mayer]

Add bindings for SolidRun AM642 HummingBoard-T Board, which is the
evaluation board for SolidRun AM642 SoM.

Signed-off-by: Josua Mayer <josua@solid-run.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 Documentation/devicetree/bindings/arm/ti/k3.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/ti/k3.yaml b/Documentation/devicetree/bindings/arm/ti/k3.yaml
index c6506bccfe88..0233a8b0b6fc 100644
--- a/Documentation/devicetree/bindings/arm/ti/k3.yaml
+++ b/Documentation/devicetree/bindings/arm/ti/k3.yaml
@@ -87,6 +87,13 @@ properties:
           - const: tq,am642-tqma6442l
           - const: ti,am642
 
+      - description: K3 AM642 SoC SolidRun SoM based boards
+        items:
+          - enum:
+              - solidrun,am642-hummingboard-t
+          - const: solidrun,am642-sr-som
+          - const: ti,am642
+
       - description: K3 AM654 SoC
         items:
           - enum:

-- 
2.35.3

[PATCH v7 2/4] arm64: dts: ti: k3-am64-main: Add ICSSG IEP nodes

[Josua Mayer]

From: Suman Anna <s-anna@ti.com>

The ICSSG IP on AM64x SoCs have two Industrial Ethernet Peripherals (IEPs)
to manage/generate Industrial Ethernet functions such as time stamping.
Each IEP sub-module is sourced from an internal clock mux that can be
derived from either of the IP instance's ICSSG_IEP_GCLK or from another
internal ICSSG CORE_CLK mux. Add both the IEP nodes for both the ICSSG
instances. The IEP clock is currently configured to be derived
indirectly from the ICSSG_ICLK running at 250 MHz.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Signed-off-by: Josua Mayer <josua@solid-run.com>
---
 arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index e348114f42e0..9d2dad8ae8df 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -1244,6 +1244,18 @@ icssg0_iepclk_mux: iepclk-mux@30 {
 			};
 		};
 
+		icssg0_iep0: iep@2e000 {
+			compatible = "ti,am654-icss-iep";
+			reg = <0x2e000 0x1000>;
+			clocks = <&icssg0_iepclk_mux>;
+		};
+
+		icssg0_iep1: iep@2f000 {
+			compatible = "ti,am654-icss-iep";
+			reg = <0x2f000 0x1000>;
+			clocks = <&icssg0_iepclk_mux>;
+		};
+
 		icssg0_mii_rt: mii-rt@32000 {
 			compatible = "ti,pruss-mii", "syscon";
 			reg = <0x32000 0x100>;
@@ -1385,6 +1397,18 @@ icssg1_iepclk_mux: iepclk-mux@30 {
 			};
 		};
 
+		icssg1_iep0: iep@2e000 {
+			compatible = "ti,am654-icss-iep";
+			reg = <0x2e000 0x1000>;
+			clocks = <&icssg1_iepclk_mux>;
+		};
+
+		icssg1_iep1: iep@2f000 {
+			compatible = "ti,am654-icss-iep";
+			reg = <0x2f000 0x1000>;
+			clocks = <&icssg1_iepclk_mux>;
+		};
+
 		icssg1_mii_rt: mii-rt@32000 {
 			compatible = "ti,pruss-mii", "syscon";
 			reg = <0x32000 0x100>;

-- 
2.35.3

[PATCH v7 3/4] arm64: dts: add description for solidrun am642 som and evaluation board

[Josua Mayer]

Add description for the SolidRun AM642 SoM, and HummingBoard-T
evaluation board.

The SoM features:
- 1x cpsw ethernet with phy
- 2x pru ethernet with phy
- eMMC
- spi flash (assembly option)

Additionally microSD and usb-2.0 otg are included in the SoM
description as they are supported boot sources for the SOC boot-rom.

The Carrier provides:
- 3x RJ45 connector
- 2x M.2 connector
- USB-2.0 Hub
- USB-A Connector
- LEDs
- 2x CAN transceiver
- 1x RS485 transceiver
- sensors

The M.2 connectors support either USB-3.1 or PCI-E depending on status
of a mux. By default the mux is switched off.

Signed-off-by: Josua Mayer <josua@solid-run.com>
---
 arch/arm64/boot/dts/ti/Makefile                    |   1 +
 arch/arm64/boot/dts/ti/k3-am642-hummingboard-t.dts | 292 ++++++++++
 arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi        | 594 +++++++++++++++++++++
 3 files changed, 887 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 52c1dc910308..bd73ce06acba 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -38,6 +38,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-hdmi-audio.dtbo
 
 # Boards with AM64x SoC
 dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb
+dtb-$(CONFIG_ARCH_K3) += k3-am642-hummingboard-t.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-rdk.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am642-tqma64xxl-mbax4xxl.dtb
diff --git a/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t.dts b/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t.dts
new file mode 100644
index 000000000000..234d76e4e944
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t.dts
@@ -0,0 +1,292 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2023 Josua Mayer <josua@solid-run.com>
+ *
+ * DTS for SolidRun AM642 HummingBoard-T,
+ * running on Cortex A53.
+ *
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/phy/phy.h>
+
+#include "k3-am642.dtsi"
+#include "k3-am642-sr-som.dtsi"
+
+/ {
+	model = "SolidRun AM642 HummingBoard-T";
+	compatible = "solidrun,am642-hummingboard-t", "solidrun,am642-sr-som", "ti,am642";
+
+	aliases {
+		serial5 = &main_uart3;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&leds_default_pins>;
+
+		/* D24 */
+		led1: led-1 {
+			label = "led1";
+			gpios = <&main_gpio0 29 GPIO_ACTIVE_HIGH>;
+			color = <LED_COLOR_ID_GREEN>;
+		};
+
+		/* D25 */
+		led2: led-2 {
+			label = "led2";
+			gpios = <&main_gpio0 30 GPIO_ACTIVE_HIGH>;
+			color = <LED_COLOR_ID_GREEN>;
+		};
+
+		/* D26 */
+		led3: led-3 {
+			label = "led3";
+			gpios = <&main_gpio0 33 GPIO_ACTIVE_HIGH>;
+			color = <LED_COLOR_ID_GREEN>;
+		};
+	};
+
+	regulator-m2-3v3 {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&regulator_pcie_3v3_default_pins>;
+		regulator-name = "m2-3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&main_gpio1 17 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-always-on;
+	};
+
+	regulator-vpp-1v8 {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&regulator_vpp_1v8_default_pins>;
+		regulator-name = "vpp-1v8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		gpio = <&main_gpio1 78 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	serdes_mux: mux-controller {
+		compatible = "gpio-mux";
+		pinctrl-names = "default";
+		pinctrl-0 = <&serdes_mux_default_pins>;
+		#mux-control-cells = <0>;
+		/*
+		 * Mux has 2 IOs:
+		 * - select: 0 = USB-3 (M2); 1 = PCIE (M1)
+		 * - shutdown: 0 = active; 1 = disabled (high impedance)
+		 */
+		mux-gpios = <&main_gpio1 40 GPIO_ACTIVE_HIGH>, <&main_gpio1 41 GPIO_ACTIVE_HIGH>;
+		/* default disabled */
+		idle-state = <2>;
+	};
+};
+
+&main_gpio0 {
+	m2-reset-hog {
+		gpio-hog;
+		gpios = <12 GPIO_ACTIVE_LOW>;
+		output-low; /* deasserted */
+		line-name = "m2-reset";
+	};
+
+	m1-m2-w-disable1-hog {
+		gpio-hog;
+		gpios = <32 GPIO_ACTIVE_LOW>;
+		output-low; /* deasserted */
+		line-name = "m1-m2-pcie-w-disable1";
+	};
+
+	m1-m2-w-disable2-hog {
+		gpio-hog;
+		gpios = <34 GPIO_ACTIVE_LOW>;
+		output-low; /* deasserted */
+		line-name = "m1-m2-pcie-w-disable2";
+	};
+};
+
+&main_gpio1 {
+	m1-pcie-clkreq0-hog {
+		gpio-hog;
+		gpios = <11 GPIO_ACTIVE_LOW>;
+		input;
+		line-name = "m1-pcie-clkreq0";
+	};
+
+	m2-pcie-clkreq-hog {
+		gpio-hog;
+		gpios = <35 GPIO_ACTIVE_LOW>;
+		input;
+		line-name = "m2-pcie-clkreq";
+	};
+};
+
+&main_i2c0 {
+	pinctrl-0 = <&main_i2c0_default_pins>, <&main_i2c0_int_default_pins>;
+
+	humidity-sensor@41 {
+		compatible = "ti,hdc2010";
+		reg = <0x41>;
+		interrupt-parent = <&main_gpio0>;
+		interrupts = <37 IRQ_TYPE_EDGE_FALLING>;
+	};
+
+	light-sensor@44 {
+		compatible = "ti,opt3001";
+		reg = <0x44>;
+		interrupt-parent = <&main_gpio0>;
+		interrupts = <37 IRQ_TYPE_EDGE_FALLING>;
+	};
+
+	/* charger@6a */
+};
+
+&main_i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_i2c1_default_pins>;
+	status = "okay";
+
+	rtc@69 {
+		compatible = "abracon,abx80x";
+		reg = <0x69>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&rtc_int_default_pins>;
+		abracon,tc-diode = "schottky";
+		abracon,tc-resistor = <3>;
+		interrupt-parent = <&main_gpio0>;
+		interrupts = <44 IRQ_TYPE_EDGE_FALLING>;
+	};
+};
+
+&main_mcan0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_mcan0_default_pins>;
+	status = "okay";
+
+	can-transceiver {
+		max-bitrate = <8000000>;
+	};
+};
+
+&main_mcan1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_mcan1_default_pins>;
+	status = "okay";
+
+	can-transceiver {
+		max-bitrate = <8000000>;
+	};
+};
+
+&main_pmx0 {
+	leds_default_pins: leds-default-pins {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x0074, PIN_OUTPUT, 7) /* GPMC0_AD14.GPIO0_29 */
+			AM64X_IOPAD(0x0078, PIN_OUTPUT, 7) /* GPMC0_AD15.GPIO0_30 */
+			AM64X_IOPAD(0x0088, PIN_OUTPUT, 7) /* GPMC0_OEn_REn.GPIO0_33 */
+		>;
+	};
+
+	main_i2c0_int_default_pins: main-i2c0-int-default-pins {
+		pinctrl-single,pins = <
+			/* external pull-up on Carrier */
+			AM64X_IOPAD(0x0098, PIN_INPUT, 7) /* GPMC0_WAIT0.GPIO0_37 */
+		>;
+	};
+
+	main_i2c1_default_pins: main-i2c1-default-pins {
+		pinctrl-single,pins = <
+			/* external pull-up on SoM */
+			AM64X_IOPAD(0x0268, PIN_INPUT, 0) /* I2C1_SCL.I2C1_SCL */
+			AM64X_IOPAD(0x026c, PIN_INPUT, 0) /* I2C1_SDA.I2C1_SDA */
+		>;
+	};
+
+	main_mcan0_default_pins: main-mcan0-default-pins {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x0254, PIN_INPUT, 0) /* MCAN0_RX.MCAN0_RX */
+			AM64X_IOPAD(0x0250, PIN_OUTPUT, 0) /* MCAN0_TX.MCAN0_TX */
+		>;
+	};
+
+	main_mcan1_default_pins: main-mcan1-default-pins {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x025c, PIN_INPUT, 0) /* MCAN1_RX.MCAN1_RX */
+			AM64X_IOPAD(0x0258, PIN_OUTPUT, 0) /* MCAN1_TX.MCAN1_TX */
+		>;
+	};
+
+	main_uart3_default_pins: main-uart3-default-pins {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x016c, PIN_INPUT, 10) /* PRG0_PRU0_GPO3.UART3_CTSn */
+			AM64X_IOPAD(0x0170, PIN_OUTPUT, 10) /* PRG0_PRU0_GPO4.UART3_TXD */
+			AM64X_IOPAD(0x0174, PIN_OUTPUT, 10) /* PRG0_PRU0_GPO5.UART3_RTSn */
+			AM64X_IOPAD(0x01ac, PIN_INPUT, 10) /* PRG0_PRU0_GPO19.UART3_RXD */
+		>;
+	};
+
+	pcie0_default_pins: pcie0-default-pins {
+		pinctrl-single,pins = <
+			/* connector M2 RESET */
+			AM64X_IOPAD(0x0030, PIN_OUTPUT, 7) /* OSPI0_CSn1.GPIO0_12 */
+			/* connectors M1 & M2 W_DISABLE1 */
+			AM64X_IOPAD(0x0084, PIN_OUTPUT, 7) /* GPMC0_ADVN_ALE.GPIO0_32 */
+			/* connectors M1 & M2 W_DISABLE2 */
+			AM64X_IOPAD(0x008c, PIN_OUTPUT, 7) /* GPMC0_WEN.GPIO0_34 */
+			/* connectors M1 & M2 PERST0 (PCI Reset) */
+			AM64X_IOPAD(0x019c, PIN_OUTPUT, 7) /* PRG0_PRU0_GPO15.GPIO1_15 */
+			/* connector M1 CLKREQ0 */
+			AM64X_IOPAD(0x018c, PIN_INPUT, 7) /* PRG0_PRU0_GPO11.GPIO1_11 */
+			/* connector M2 CLKREQ0 */
+			AM64X_IOPAD(0x01ec, PIN_INPUT, 7) /* PRG0_PRU1_GPO15.GPIO1_35 */
+		>;
+	};
+
+	regulator_pcie_3v3_default_pins: regulator-pcie-3v3-default-pins {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x01a4, PIN_OUTPUT, 7) /* PRG0_PRU0_GPO17.GPIO1_17 */
+		>;
+	};
+
+	regulator_vpp_1v8_default_pins: regulator-vpp-1v8-default-pins {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x029c, PIN_OUTPUT, 7) /* MMC1_SDWP.GPIO1_78 */
+		>;
+	};
+
+	rtc_int_default_pins: rtc-int-default-pins {
+		pinctrl-single,pins = <
+			/* external pull-up on Carrier */
+			AM64X_IOPAD(0x00b4, PIN_INPUT, 7) /* GPMC0_CSn3.GPIO0_44 */
+		>;
+	};
+
+	serdes_mux_default_pins: serdes-mux-default-pins {
+		pinctrl-single,pins = <
+			/* SEL, 10k pull-down on carrier, 2.2k pullup on SoM */
+			AM64X_IOPAD(0x0200, PIN_OUTPUT, 7) /* PRG0_MDIO0_MDIO.GPIO1_40 */
+			/* EN */
+			AM64X_IOPAD(0x0204, PIN_OUTPUT, 7) /* PRG0_MDIO0_MDC.GPIO1_41 */
+		>;
+	};
+};
+
+&main_uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_uart3_default_pins>;
+	uart-has-rtscts;
+	rs485-rts-active-low;
+	linux,rs485-enabled-at-boot-time;
+	status = "okay";
+};
+
+&usb0 {
+	dr_mode = "host";
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi b/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
new file mode 100644
index 000000000000..c19d0b8bbf0f
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am642-sr-som.dtsi
@@ -0,0 +1,594 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2023 Josua Mayer <josua@solid-run.com>
+ *
+ */
+
+#include <dt-bindings/net/ti-dp83869.h>
+
+/ {
+	model = "SolidRun AM642 SoM";
+	compatible = "solidrun,am642-sr-som", "ti,am642";
+
+	aliases {
+		ethernet0 = &cpsw_port1;
+		ethernet1 = &icssg1_emac0;
+		ethernet2 = &icssg1_emac1;
+		mmc0 = &sdhci0;
+		mmc1 = &sdhci1;
+		serial2 = &main_uart0;
+	};
+
+	chosen {
+		/* SoC default UART console */
+		stdout-path = "serial2:115200n8";
+	};
+
+	/* PRU Ethernet Controller */
+	ethernet {
+		compatible = "ti,am642-icssg-prueth";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pru_rgmii1_default_pins>, <&pru_rgmii2_default_pins>;
+
+		sram = <&oc_sram>;
+		ti,prus = <&pru1_0>, <&rtu1_0>, <&tx_pru1_0>, <&pru1_1>, <&rtu1_1>, <&tx_pru1_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";
+
+		/* configure internal pinmux for mii mode */
+		ti,pruss-gp-mux-sel = <2>, <2>, <2>, <2>, <2>, <2>;
+
+		ti,mii-g-rt = <&icssg1_mii_g_rt>;
+		ti,mii-rt = <&icssg1_mii_rt>;
+		ti,iep = <&icssg1_iep0>, <&icssg1_iep1>;
+
+		/*
+		 * Configure icssg interrupt controller to map pru-internal
+		 * interrupts 8/9 via channels 0/1 to host interrupts 0/1.
+		 *
+		 * For details see interrupt controller documentation:
+		 * Documentation/devicetree/bindings/interrupt-controller/ti,pruss-intc.yaml
+		 */
+		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>;
+				ti,syscon-rgmii-delay = <&main_conf 0x4110>;
+				/* Filled in by bootloader */
+				local-mac-address = [00 00 00 00 00 00];
+				phy-handle = <&ethernet_phy2>;
+				phy-mode = "rgmii-id";
+			};
+
+			icssg1_emac1: port@1 {
+				reg = <1>;
+				ti,syscon-rgmii-delay = <&main_conf 0x4114>;
+				/* Filled in by bootloader */
+				local-mac-address = [00 00 00 00 00 00];
+				phy-handle = <&ethernet_phy1>;
+				phy-mode = "rgmii-id";
+			};
+		};
+	};
+
+	/* DDR16SS0:
+	 * - Bank 1 @ 0x080000000-0x0FFFFFFFF: max. 2GB in 32-bit address space
+	 * - Bank 2 @ 0x880000000-0x9FFFFFFFF: max. 6GB in 64-bit address space
+	 */
+	memory@80000000 {
+		reg = <0x00000000 0x80000000 0x00000000 0x80000000>,
+		      <0x00000008 0x80000000 0x00000001 0x80000000>;
+		device_type = "memory";
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		secure_ddr: optee@9e800000 {
+			reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */
+			no-map;
+		};
+
+		main_r5fss0_core0_dma_memory_region: r5f-dma-memory@a0000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa0000000 0x00 0x100000>;
+			no-map;
+		};
+
+		main_r5fss0_core0_memory_region: r5f-memory@a0100000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa0100000 0x00 0xf00000>;
+			no-map;
+		};
+
+		main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa1000000 0x00 0x100000>;
+			no-map;
+		};
+
+		main_r5fss0_core1_memory_region: r5f-memory@a1100000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa1100000 0x00 0xf00000>;
+			no-map;
+		};
+
+		main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a2000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa2000000 0x00 0x100000>;
+			no-map;
+		};
+
+		main_r5fss1_core0_memory_region: r5f-memory@a2100000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa2100000 0x00 0xf00000>;
+			no-map;
+		};
+
+		main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a3000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa3000000 0x00 0x100000>;
+			no-map;
+		};
+
+		main_r5fss1_core1_memory_region: r5f-memory@a3100000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa3100000 0x00 0xf00000>;
+			no-map;
+		};
+	};
+
+	vdd_mmc0: regulator-vdd-mmc0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd-mmc0";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+};
+
+&cpsw3g {
+	pinctrl-names = "default";
+	pinctrl-0 = <&rgmii1_default_pins>;
+};
+
+&cpsw3g_mdio {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mdio0_default_pins>;
+	status = "okay";
+
+	ethernet_phy0: ethernet-phy@0 {
+		compatible = "ethernet-phy-id2000.a0f1";
+		reg = <0>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&ethernet_phy0_default_pins>;
+		ti,clk-output-sel = <DP83869_CLK_O_SEL_REF_CLK>;
+		ti,op-mode = <DP83869_RGMII_COPPER_ETHERNET>;
+		/*
+		 * Disable interrupts because ISR never clears 0x0040
+		 *
+		 * interrupt-parent = <&main_gpio1>;
+		 * interrupts = <70 IRQ_TYPE_LEVEL_LOW>;
+		 */
+		/*
+		 * Disable HW Reset because clock signal is daisy-chained
+		 *
+		 * reset-gpios = <&main_gpio0 84 GPIO_ACTIVE_LOW>;
+		 * reset-assert-us = <1>;
+		 * reset-deassert-us = <30>;
+		 */
+	};
+};
+
+&cpsw_port1 {
+	phy-mode = "rgmii-id";
+	phy-handle = <&ethernet_phy0>;
+};
+
+&cpsw_port2 {
+	status = "disabled";
+};
+
+&icssg1_mdio {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pru1_mdio0_default_pins>;
+	status = "okay";
+
+	ethernet_phy1: ethernet-phy@3 {
+		compatible = "ethernet-phy-id2000.a0f1";
+		reg = <3>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&ethernet_phy1_default_pins>;
+		ti,clk-output-sel = <DP83869_CLK_O_SEL_REF_CLK>;
+		ti,op-mode = <DP83869_RGMII_COPPER_ETHERNET>;
+		/*
+		 * Disable interrupts because ISR never clears 0x0040
+		 *
+		 * interrupt-parent = <&main_gpio1>;
+		 * interrupts = <70 IRQ_TYPE_LEVEL_LOW>;
+		 */
+		/*
+		 * Disable HW Reset because clock signal is daisy-chained
+		 *
+		 * reset-gpios = <&main_gpio0 20 GPIO_ACTIVE_LOW>;
+		 * reset-assert-us = <1>;
+		 * reset-deassert-us = <30>;
+		 */
+	};
+
+	ethernet_phy2: ethernet-phy@f {
+		compatible = "ethernet-phy-id2000.a0f1";
+		reg = <0xf>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&ethernet_phy2_default_pins>;
+		ti,op-mode = <DP83869_RGMII_COPPER_ETHERNET>;
+		/*
+		 * Disable interrupts because ISR never clears 0x0040
+		 *
+		 * interrupt-parent = <&main_gpio1>;
+		 * interrupts = <70 IRQ_TYPE_LEVEL_LOW>;
+		 */
+		/*
+		 * Disable HW Reset because clock signal is daisy-chained
+		 *
+		 * reset-gpios = <&main_gpio0 52 GPIO_ACTIVE_LOW>;
+		 * reset-assert-us = <1>;
+		 * reset-deassert-us = <30>;
+		 */
+	};
+};
+
+&mailbox0_cluster2 {
+	status = "okay";
+
+	mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 {
+		ti,mbox-rx = <0 0 2>;
+		ti,mbox-tx = <1 0 2>;
+	};
+
+	mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 {
+		ti,mbox-rx = <2 0 2>;
+		ti,mbox-tx = <3 0 2>;
+	};
+};
+
+&mailbox0_cluster4 {
+	status = "okay";
+
+	mbox_main_r5fss1_core0: mbox-main-r5fss1-core0 {
+		ti,mbox-rx = <0 0 2>;
+		ti,mbox-tx = <1 0 2>;
+	};
+
+	mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 {
+		ti,mbox-rx = <2 0 2>;
+		ti,mbox-tx = <3 0 2>;
+	};
+};
+
+&main_i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_i2c0_default_pins>;
+	status = "okay";
+
+	som_eeprom: eeprom@50 {
+		compatible = "atmel,24c01";
+		reg = <0x50>;
+		pagesize = <8>;
+	};
+};
+
+&main_pmx0 {
+	/* hog global functions */
+	pinctrl-names = "default";
+	pinctrl-0 = <&ethernet_phy_default_pins>;
+
+	ethernet_phy_default_pins: ethernet-phy-default-pins {
+		pinctrl-single,pins = <
+			/* interrupt / power-down, external pull-up on SoM */
+			AM64X_IOPAD(0x0278, PIN_INPUT, 7) /* EXTINTn.GPIO1_70 */
+		>;
+	};
+
+	ethernet_phy0_default_pins: ethernet-phy0-default-pins {
+		pinctrl-single,pins = <
+			/* reset */
+			AM64X_IOPAD(0x0154, PIN_OUTPUT, 7) /* PRG1_PRU1_GPO19.GPIO0_84 */
+			/* reference clock */
+			AM64X_IOPAD(0x0274, PIN_OUTPUT, 5) /* EXT_REFCLK1.CLKOUT0 */
+		>;
+	};
+
+	ethernet_phy1_default_pins: ethernet-phy1-default-pins {
+		pinctrl-single,pins = <
+			/* reset */
+			AM64X_IOPAD(0x0150, PIN_OUTPUT, 7) /* PRG1_PRU1_GPO18.GPIO0_20 */
+			/* led0, external pull-down on SoM */
+			AM64X_IOPAD(0x0128, PIN_INPUT, 7) /* PRG1_PRU1_GPO8.GPIO0_73 */
+			/* led1/rxer */
+			AM64X_IOPAD(0x011c, PIN_INPUT, 7) /* PRG1_PRU1_GPO5.GPIO0_70 */
+		>;
+	};
+
+	ethernet_phy2_default_pins: ethernet-phy2-default-pins {
+		pinctrl-single,pins = <
+			/* reset */
+			AM64X_IOPAD(0x00d4, PIN_OUTPUT, 7) /* PRG1_PRU0_GPO7.GPIO0_52 */
+			/* led0, external pull-down on SoM */
+			AM64X_IOPAD(0x00d8, PIN_INPUT, 7) /* PRG1_PRU0_GPO8.GPIO0_53 */
+			/* led1/rxer */
+			AM64X_IOPAD(0x00cc, PIN_INPUT, 7) /* PRG1_PRU0_GPO5.GPIO0_50 */
+		>;
+	};
+
+	main_i2c0_default_pins: main-i2c0-default-pins {
+		pinctrl-single,pins = <
+			/* external pull-up on SoM */
+			AM64X_IOPAD(0x0260, PIN_INPUT, 0) /* I2C0_SCL.I2C0_SCL */
+			AM64X_IOPAD(0x0264, PIN_INPUT, 0) /* I2C0_SDA.I2C0_SDA */
+		>;
+	};
+
+	/*
+	 * main_mmc0_default_pins: main-mmc0-default-pins
+	 *
+	 * MMC0_CMD: no padconfig
+	 * MMC0_CLK: no padconfig, external pull-up on SoM
+	 * MMC0_DAT0: no padconfig
+	 * MMC0_DAT1: no padconfig
+	 * MMC0_DAT2: no padconfig
+	 * MMC0_DAT3: no padconfig
+	 * MMC0_DAT4: no padconfig
+	 * MMC0_DAT5: no padconfig
+	 * MMC0_DAT6: no padconfig
+	 * MMC0_DAT7: no padconfig
+	 * MMC0_DS: no padconfig, external pull-down on SoM
+	 */
+
+	main_mmc1_default_pins: main-mmc1-default-pins {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x0294, PIN_INPUT_PULLUP, 0) /* (J19) MMC1_CMD */
+			AM64X_IOPAD(0x028c, PIN_INPUT, 0) /* MMC1_CLK.MMC1_CLK */
+			AM64X_IOPAD(0x0288, PIN_INPUT_PULLUP, 0) /* MMC1_DAT0.MMC1_DAT0 */
+			AM64X_IOPAD(0x0284, PIN_INPUT_PULLUP, 0) /* MMC1_DAT1.MMC1_DAT1 */
+			AM64X_IOPAD(0x0280, PIN_INPUT_PULLUP, 0) /* MMC1_DAT2.MMC1_DAT2 */
+			AM64X_IOPAD(0x027c, PIN_INPUT_PULLUP, 0) /* MMC1_DAT3.MMC1_DAT3 */
+			/* external pull-down on SoM & Carrier */
+			AM64X_IOPAD(0x0298, PIN_INPUT_PULLUP, 0) /* MMC1_SDCD.MMC1_SDCD */
+			AM64X_IOPAD(0x0290, PIN_INPUT, 0) /* MMC1_CLKLB: clock loopback */
+		>;
+	};
+
+	main_uart0_default_pins: main-uart0-default-pins {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x0230, PIN_INPUT, 0) /* UART0_RXD.UART0_RXD */
+			AM64X_IOPAD(0x0234, PIN_OUTPUT, 0) /* UART0_TXD.UART0_TXD */
+		>;
+	};
+
+	mdio0_default_pins: mdio0-default-pins {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x01fc, PIN_OUTPUT, 4) /* PRG0_PRU1_GPO19.MDIO0_MDC */
+			AM64X_IOPAD(0x01f8, PIN_INPUT, 4) /* PRG0_PRU1_GPO18.MDIO0_MDIO */
+		>;
+	};
+
+	ospi0_default_pins: ospi0-default-pins {
+		pinctrl-single,pins = <
+			/* external pull-down on SoM */
+			AM64X_IOPAD(0x0000, PIN_OUTPUT, 0) /* OSPI0_CLK.OSPI0_CLK */
+			AM64X_IOPAD(0x0008, PIN_OUTPUT, 0) /* OSPI0_DQS.OSPI0_DQS */
+			/* external pull-up on SoM */
+			AM64X_IOPAD(0x002c, PIN_OUTPUT, 0) /* OSPI0_CSn0.OSPI0_CSn0 */
+			AM64X_IOPAD(0x000c, PIN_INPUT, 0) /* OSPI0_D0.OSPI0_D0 */
+			AM64X_IOPAD(0x0010, PIN_INPUT, 0) /* OSPI0_D1.OSPI0_D1 */
+			AM64X_IOPAD(0x0014, PIN_INPUT, 0) /* OSPI0_D2.OSPI0_D2 */
+			AM64X_IOPAD(0x0018, PIN_INPUT, 0) /* OSPI0_D3.OSPI0_D3 */
+			AM64X_IOPAD(0x001c, PIN_INPUT, 0) /* OSPI0_D4.OSPI0_D4 */
+			AM64X_IOPAD(0x0020, PIN_INPUT, 0) /* OSPI0_D5.OSPI0_D5 */
+			AM64X_IOPAD(0x0024, PIN_INPUT, 0) /* OSPI0_D6.OSPI0_D6 */
+			AM64X_IOPAD(0x0028, PIN_INPUT, 0) /* OSPI0_D7.OSPI0_D7 */
+		>;
+	};
+
+	ospi0_flash0_default_pins: ospi0-flash0-default-pins {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x0034, PIN_OUTPUT, 7) /* OSPI0_CSn2.GPIO0_13 */
+			AM64X_IOPAD(0x0038, PIN_INPUT, 7) /* OSPI0_CSn3.GPIO0_14 */
+		>;
+	};
+
+	pru1_mdio0_default_pins: pru1-mdio0-default-pins {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x015c, PIN_OUTPUT, 0) /* PRG1_MDIO0_MDC.PRG1_MDIO0_MDC */
+			AM64X_IOPAD(0x0158, PIN_INPUT, 0) /* PRG1_MDIO0_MDIO.PRG1_MDIO0_MDIO */
+		>;
+	};
+
+	pru_rgmii1_default_pins: pru-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_OUTPUT, 2) /* (AA8) PRG1_PRU0_GPO11.PRG1_RGMII1_TD0 */
+			AM64X_IOPAD(0x00e8, PIN_OUTPUT, 2) /* (U9) PRG1_PRU0_GPO12.PRG1_RGMII1_TD1 */
+			AM64X_IOPAD(0x00ec, PIN_OUTPUT, 2) /* (W9) PRG1_PRU0_GPO13.PRG1_RGMII1_TD2 */
+			AM64X_IOPAD(0x00f0, PIN_OUTPUT, 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_OUTPUT, 2) /* (Y9) PRG1_PRU0_GPO15.PRG1_RGMII1_TX_CTL */
+		>;
+	};
+
+	pru_rgmii2_default_pins: pru-rgmii2-default-pins {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x0108, PIN_INPUT, 2) /* PRG1_PRU1_GPO0.RGMII2_RD0 */
+			AM64X_IOPAD(0x010c, PIN_INPUT, 2) /* PRG1_PRU1_GPO1.RGMII2_RD1 */
+			AM64X_IOPAD(0x0110, PIN_INPUT, 2) /* PRG1_PRU1_GPO2.RGMII2_RD2 */
+			AM64X_IOPAD(0x0114, PIN_INPUT, 2) /* PRG1_PRU1_GPO3.RGMII2_RD3 */
+			AM64X_IOPAD(0x0120, PIN_INPUT, 2) /* PRG1_PRU1_GPO6.RGMII2_RXC */
+			AM64X_IOPAD(0x0118, PIN_INPUT, 2) /* PRG1_PRU1_GPO4.RGMII2_RX_CTL */
+			AM64X_IOPAD(0x0134, PIN_OUTPUT, 2) /* PRG1_PRU1_GPO11.RGMII2_TD0 */
+			AM64X_IOPAD(0x0138, PIN_OUTPUT, 2) /* PRG1_PRU1_GPO12.RGMII2_TD1 */
+			AM64X_IOPAD(0x013c, PIN_OUTPUT, 2) /* PRG1_PRU1_GPO13.RGMII2_TD2 */
+			AM64X_IOPAD(0x0140, PIN_OUTPUT, 2) /* PRG1_PRU1_GPO14.RGMII2_TD3 */
+			AM64X_IOPAD(0x0148, PIN_INPUT, 2) /* PRG1_PRU1_GPO16.RGMII2_TXC */
+			AM64X_IOPAD(0x0144, PIN_OUTPUT, 2) /* PRG1_PRU1_GPO15.RGMII2_TX_CTL */
+		>;
+	};
+
+	rgmii1_default_pins: rgmii1-default-pins {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x01cc, PIN_INPUT, 4) /* PRG0_PRU1_GPO7.RGMII1_RD0 */
+			AM64X_IOPAD(0x01d4, PIN_INPUT, 4) /* PRG0_PRU1_GPO9.RGMII1_RD1 */
+			AM64X_IOPAD(0x01d8, PIN_INPUT, 4) /* PRG0_PRU1_GPO10.RGMII1_RD2 */
+			AM64X_IOPAD(0x01f4, PIN_INPUT, 4) /* PRG0_PRU1_GPO17.RGMII1_RD3 */
+			AM64X_IOPAD(0x0188, PIN_INPUT, 4) /* PRG0_PRU0_GPO10.RGMII1_RXC */
+			AM64X_IOPAD(0x0184, PIN_INPUT, 4) /* PRG0_PRU0_GPO9.RGMII1_RX_CTL */
+			AM64X_IOPAD(0x0124, PIN_OUTPUT, 4) /* PRG1_PRU1_GPO7.RGMII1_TD0 */
+			AM64X_IOPAD(0x012c, PIN_OUTPUT, 4) /* PRG1_PRU1_GPO9.RGMII1_TD1 */
+			AM64X_IOPAD(0x0130, PIN_OUTPUT, 4) /* PRG1_PRU1_GPO10.RGMII1_TD2 */
+			AM64X_IOPAD(0x014c, PIN_OUTPUT, 4) /* PRG1_PRU1_GPO17.RGMII1_TD3 */
+			AM64X_IOPAD(0x00e0, PIN_INPUT, 4) /* PRG1_PRU0_GPO10.RGMII1_TXC */
+			AM64X_IOPAD(0x00dc, PIN_OUTPUT, 4) /* PRG1_PRU0_GPO9.RGMII1_TX_CTL */
+		>;
+	};
+
+	usb0_default_pins: usb0-default-pins {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x02a8, PIN_OUTPUT, 0) /* USB0_DRVVBUS.USB0_DRVVBUS */
+		>;
+	};
+};
+
+&main_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
+	memory-region = <&main_r5fss0_core0_dma_memory_region>,
+			<&main_r5fss0_core0_memory_region>;
+};
+
+&main_r5fss0_core1 {
+	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core1>;
+	memory-region = <&main_r5fss0_core1_dma_memory_region>,
+			<&main_r5fss0_core1_memory_region>;
+};
+
+&main_r5fss1_core0 {
+	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core0>;
+	memory-region = <&main_r5fss1_core0_dma_memory_region>,
+			<&main_r5fss1_core0_memory_region>;
+};
+
+&main_r5fss1_core1 {
+	mboxes = <&mailbox0_cluster4 &mbox_main_r5fss1_core1>;
+	memory-region = <&main_r5fss1_core1_dma_memory_region>,
+			<&main_r5fss1_core1_memory_region>;
+};
+
+/* SoC default UART console */
+&main_uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_uart0_default_pins>;
+	status = "okay";
+};
+
+&ospi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&ospi0_default_pins>;
+	num-cs = <1>;
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&ospi0_flash0_default_pins>;
+		spi-tx-bus-width = <8>;
+		spi-rx-bus-width = <8>;
+		spi-max-frequency = <200000000>;
+		cdns,tshsl-ns = <50>;
+		cdns,tsd2d-ns = <50>;
+		cdns,tchsh-ns = <4>;
+		cdns,tslch-ns = <4>;
+		cdns,read-delay = <0>;
+		interrupt-parent = <&main_gpio0>;
+		interrupts = <14 IRQ_TYPE_LEVEL_LOW>;
+		reset-gpios = <&main_gpio0 13 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&sdhci0 {
+	/* mmc0 pins have no padconfig */
+	bus-width = <8>;
+	ti,driver-strength-ohm = <50>;
+	disable-wp;
+	non-removable;
+	cap-mmc-hw-reset;
+	no-sd;
+	/*
+	 * MMC controller supports switching between 1.8V and 3.3V signalling.
+	 * However MMC0 (unlike MMC1) does not integrate an LDO.
+	 * Explicitly link a regulator node for indicating to the driver which
+	 * voltages are actually usable.
+	 */
+	vqmmc-supply = <&vdd_mmc0>;
+	status = "okay";
+};
+
+/*
+ * microSD is on carrier - however since SoC can boot from it,
+ * configure it just in case.
+ */
+&sdhci1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_mmc1_default_pins>;
+	bus-width = <4>;
+	ti,driver-strength-ohm = <50>;
+	disable-wp;
+	status = "okay";
+};
+
+/*
+ * USB settings are a carrier choice - however since SoC can boot from it,
+ * configure as USB-2.0 OTG here, keeping USB-3 serdes disabled.
+ */
+&usb0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&usb0_default_pins>;
+	dr_mode = "otg";
+	maximum-speed = "high-speed";
+};
+
+&usbss0 {
+	ti,vbus-divider;
+	ti,usb2-only;
+};

-- 
2.35.3

[PATCH v7 4/4] arm64: dts: ti: hummingboard-t: add overlays for m.2 pci-e and usb-3

[Josua Mayer]

HummingBoard-T features two M.2 connectors labeled "M1" and "M2".
The single SerDes lane of the SoC can be routed to either M1 pci-e
signals, or M2 usb-3 signals by a gpio-controlled mux.

Add overlays for each configuration.

Signed-off-by: Josua Mayer <josua@solid-run.com>
---
 arch/arm64/boot/dts/ti/Makefile                    |  6 +++
 .../boot/dts/ti/k3-am642-hummingboard-t-pcie.dtso  | 45 ++++++++++++++++++++++
 .../boot/dts/ti/k3-am642-hummingboard-t-usb3.dtso  | 44 +++++++++++++++++++++
 3 files changed, 95 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index bd73ce06acba..cd12720638c7 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -37,8 +37,14 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-csi2-imx219.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-hdmi-audio.dtbo
 
 # Boards with AM64x SoC
+k3-am642-hummingboard-t-pcie-dtbs := \
+	k3-am642-hummingboard-t.dtb k3-am642-hummingboard-t-pcie.dtbo
+k3-am642-hummingboard-t-usb3-dtbs := \
+	k3-am642-hummingboard-t.dtb k3-am642-hummingboard-t-usb3.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am642-hummingboard-t.dtb
+dtb-$(CONFIG_ARCH_K3) += k3-am642-hummingboard-t-pcie.dtb
+dtb-$(CONFIG_ARCH_K3) += k3-am642-hummingboard-t-usb3.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-rdk.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am642-tqma64xxl-mbax4xxl.dtb
diff --git a/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-pcie.dtso b/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-pcie.dtso
new file mode 100644
index 000000000000..bd9a5caf20da
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-pcie.dtso
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2023 Josua Mayer <josua@solid-run.com>
+ *
+ * Overlay for SolidRun AM642 HummingBoard-T to enable PCI-E.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/phy/phy.h>
+
+#include "k3-serdes.h"
+
+&pcie0_rc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie0_default_pins>;
+	reset-gpios = <&main_gpio1 15 GPIO_ACTIVE_HIGH>;
+	phys = <&serdes0_link>;
+	phy-names = "pcie-phy";
+	num-lanes = <1>;
+	status = "okay";
+};
+
+&serdes0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	serdes0_link: phy@0 {
+		reg = <0>;
+		cdns,num-lanes = <1>;
+		cdns,phy-type = <PHY_TYPE_PCIE>;
+		#phy-cells = <0>;
+		resets = <&serdes_wiz0 1>;
+	};
+};
+
+&serdes_ln_ctrl {
+	idle-states = <AM64_SERDES0_LANE0_PCIE0>;
+};
+
+&serdes_mux {
+	idle-state = <1>;
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dtso b/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dtso
new file mode 100644
index 000000000000..ffcc3bd3c7bc
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t-usb3.dtso
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2023 Josua Mayer <josua@solid-run.com>
+ *
+ * Overlay for SolidRun AM642 HummingBoard-T to enable USB-3.1.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/phy/phy.h>
+
+#include "k3-serdes.h"
+
+&serdes0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	serdes0_link: phy@0 {
+		reg = <0>;
+		cdns,num-lanes = <1>;
+		cdns,phy-type = <PHY_TYPE_USB3>;
+		#phy-cells = <0>;
+		resets = <&serdes_wiz0 1>;
+	};
+};
+
+&serdes_ln_ctrl {
+	idle-states = <AM64_SERDES0_LANE0_USB>;
+};
+
+&serdes_mux {
+	idle-state = <0>;
+};
+
+&usbss0 {
+	/delete-property/ ti,usb2-only;
+};
+
+&usb0 {
+	maximum-speed = "super-speed";
+	phys = <&serdes0_link>;
+	phy-names = "cdns3,usb3-phy";
+};

-- 
2.35.3

Re: (subset) [PATCH v7 0/4] arm64: dts: add description for solidrun am642 som and hummingboard evb

[Vignesh Raghavendra]

Hi Josua Mayer,

On Mon, 19 Feb 2024 16:02:59 +0100, Josua Mayer wrote:
> This series adds DT bindings and dts descriptions for SolidRun AM642
> based SoM and Hummingboard EVB.
> 
> Additionally a commit from downstream vendor kernel are included,
> enhancing support for pru based ethernet.
> I wasn't sure how to properly annotate it in commit description /
> signed-off area ...:
> 
> [...]

I have applied the following to branch ti-k3-dts-next on [1].
Thank you!

[1/4] dt-bindings: arm: ti: Add bindings for SolidRun AM642 HummingBoard-T
      commit: d14bae4087c5abf5bd2d56c0cc3c9e849ad2ae44
[3/4] arm64: dts: add description for solidrun am642 som and evaluation board
      commit: d60483faf914b4d404a9732476278ac13bb33b70
[4/4] arm64: dts: ti: hummingboard-t: add overlays for m.2 pci-e and usb-3
      commit: bbef42084cc170cbfc035bf784f2ff055c939d7e

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent up the chain during
the next merge window (or sooner if it is a relevant bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
--
Vignesh

Re: [PATCH v7 2/4] arm64: dts: ti: k3-am64-main: Add ICSSG IEP nodes

[Vignesh Raghavendra]

On 19/02/24 20:33, Josua Mayer wrote:
> From: Suman Anna <s-anna@ti.com>
> 
> The ICSSG IP on AM64x SoCs have two Industrial Ethernet Peripherals (IEPs)
> to manage/generate Industrial Ethernet functions such as time stamping.
> Each IEP sub-module is sourced from an internal clock mux that can be
> derived from either of the IP instance's ICSSG_IEP_GCLK or from another
> internal ICSSG CORE_CLK mux. Add both the IEP nodes for both the ICSSG
> instances. The IEP clock is currently configured to be derived
> indirectly from the ICSSG_ICLK running at 250 MHz.
> 
> Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
> Signed-off-by: Suman Anna <s-anna@ti.com>
> Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
> Signed-off-by: Josua Mayer <josua@solid-run.com>
> ---

This patch is already picked as part of different series:

https://lore.kernel.org/all/20240215103036.2825096-2-danishanwar@ti.com/

>  arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 24 ++++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> index e348114f42e0..9d2dad8ae8df 100644
> --- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> @@ -1244,6 +1244,18 @@ icssg0_iepclk_mux: iepclk-mux@30 {
>  			};
>  		};
>  
> +		icssg0_iep0: iep@2e000 {
> +			compatible = "ti,am654-icss-iep";
> +			reg = <0x2e000 0x1000>;
> +			clocks = <&icssg0_iepclk_mux>;
> +		};
> +
> +		icssg0_iep1: iep@2f000 {
> +			compatible = "ti,am654-icss-iep";
> +			reg = <0x2f000 0x1000>;
> +			clocks = <&icssg0_iepclk_mux>;
> +		};
> +
>  		icssg0_mii_rt: mii-rt@32000 {
>  			compatible = "ti,pruss-mii", "syscon";
>  			reg = <0x32000 0x100>;
> @@ -1385,6 +1397,18 @@ icssg1_iepclk_mux: iepclk-mux@30 {
>  			};
>  		};
>  
> +		icssg1_iep0: iep@2e000 {
> +			compatible = "ti,am654-icss-iep";
> +			reg = <0x2e000 0x1000>;
> +			clocks = <&icssg1_iepclk_mux>;
> +		};
> +
> +		icssg1_iep1: iep@2f000 {
> +			compatible = "ti,am654-icss-iep";
> +			reg = <0x2f000 0x1000>;
> +			clocks = <&icssg1_iepclk_mux>;
> +		};
> +
>  		icssg1_mii_rt: mii-rt@32000 {
>  			compatible = "ti,pruss-mii", "syscon";
>  			reg = <0x32000 0x100>;
> 

-- 
Regards
Vignesh