arm64: dts: renesas: Add initial support for MYIR Remi Pi

Add basic support for the MYIR Remi Pi (based on r9a07g044l2):
 - UART,
 - I2C,
 - eMMC,
 - USB host,
 - HDMI output,
 - Ethernet.

Signed-off-by: Julien Massot <julien.massot@collabora.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250131-myir-remi-pi-v3-2-2dda53e79291@collabora.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
index c81d0f7f528a5f121bbbbfbf4ab05548025c6bcc..d25e665ee4bfb98f4d0e71cd5d05c6ba709a6ef6 100644 (file)
--- a/arch/arm64/boot/dts/renesas/Makefile
+++ b/arch/arm64/boot/dts/renesas/Makefile
@@ -132,6 +132,7 @@ dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044c2-smarc-cru-csi-ov5645.dtbo
 r9a07g044c2-smarc-cru-csi-ov5645-dtbs := r9a07g044c2-smarc.dtb r9a07g044c2-smarc-cru-csi-ov5645.dtbo
 dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044c2-smarc-cru-csi-ov5645.dtb
 
+dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-remi-pi.dtb
 dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-smarc.dtb
 dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-smarc-cru-csi-ov5645.dtbo
 r9a07g044l2-smarc-cru-csi-ov5645-dtbs := r9a07g044l2-smarc.dtb r9a07g044l2-smarc-cru-csi-ov5645.dtbo

diff --git a/arch/arm64/boot/dts/renesas/r9a07g044l2-remi-pi.dts b/arch/arm64/boot/dts/renesas/r9a07g044l2-remi-pi.dts
new file mode 100644 (file)
index 0000000..3267e7b
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r9a07g044l2-remi-pi.dts
@@ -0,0 +1,339 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/*
+ * Device Tree Source for the MYIR Remi Pi
+ *
+ * Copyright (C) 2022 MYIR Electronics Corp.
+ * Copyright (C) 2025 Collabora Ltd.
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
+
+#include "r9a07g044l2.dtsi"
+
+/ {
+       model = "MYIR Tech Limited Remi Pi MYB-YG2LX-REMI";
+       compatible = "myir,remi-pi", "renesas,r9a07g044l2", "renesas,r9a07g044";
+
+       aliases {
+               ethernet0 = &eth0;
+               ethernet1 = &eth1;
+
+               i2c0 = &i2c0;
+               i2c1 = &i2c1;
+               i2c2 = &i2c2;
+               i2c3 = &i2c3;
+
+               mmc0 = &sdhi0;
+
+               serial0 = &scif0;
+               serial4 = &scif4;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+
+       hdmi-out {
+               compatible = "hdmi-connector";
+               type = "a";
+               ddc-i2c-bus = <&i2c1>;
+
+               port {
+                       hdmi_con: endpoint {
+                               remote-endpoint = <&lt8912_out>;
+                       };
+               };
+       };
+
+       memory@48000000 {
+               device_type = "memory";
+               /* first 128MB is reserved for secure area. */
+               reg = <0x0 0x48000000 0x0 0x38000000>;
+       };
+
+       reg_1p8v: regulator-1p8v {
+               compatible = "regulator-fixed";
+               regulator-name = "fixed-1.8V";
+               vin-supply = <&reg_5p0v>;
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               regulator-always-on;
+       };
+
+       reg_3p3v: regulator-3p3v {
+               compatible = "regulator-fixed";
+               regulator-name = "fixed-3.3V";
+               vin-supply = <&reg_5p0v>;
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               regulator-always-on;
+       };
+
+       reg_5p0v: regulator-5p0v {
+               compatible = "regulator-fixed";
+               regulator-name = "fixed-5.0V";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+       };
+
+       reg_1p1v: regulator-vdd-core {
+               compatible = "regulator-fixed";
+               regulator-name = "fixed-1.1V";
+               regulator-min-microvolt = <1100000>;
+               regulator-max-microvolt = <1100000>;
+               regulator-always-on;
+       };
+};
+
+&dsi {
+       status = "okay";
+
+       ports {
+               port@1 {
+                       dsi_out: endpoint {
+                               remote-endpoint = <&lt8912_in>;
+                               data-lanes = <1 2 3 4>;
+                       };
+               };
+       };
+};
+
+&du {
+       status = "okay";
+};
+
+&ehci1 {
+       status = "okay";
+};
+
+&eth0 {
+       pinctrl-0 = <&eth0_pins>;
+       pinctrl-names = "default";
+       phy-handle = <&phy0>;
+       phy-mode = "rgmii-id";
+       status = "okay";
+
+       phy0: ethernet-phy@4 {
+               compatible = "ethernet-phy-ieee802.3-c22";
+               reg = <4>;
+               interrupts-extended = <&pinctrl RZG2L_GPIO(44, 2) IRQ_TYPE_LEVEL_LOW>;
+               reset-gpios = <&pinctrl RZG2L_GPIO(44, 3) GPIO_ACTIVE_LOW>;
+       };
+};
+
+&eth1 {
+       pinctrl-0 = <&eth1_pins>;
+       pinctrl-names = "default";
+       phy-handle = <&phy1>;
+       phy-mode = "rgmii-id";
+       status = "okay";
+
+       phy1: ethernet-phy@6 {
+               compatible = "ethernet-phy-ieee802.3-c22";
+               reg = <6>;
+               interrupts-extended = <&pinctrl RZG2L_GPIO(43, 2) IRQ_TYPE_LEVEL_LOW>;
+               reset-gpios = <&pinctrl RZG2L_GPIO(43, 3) GPIO_ACTIVE_LOW>;
+       };
+};
+
+&extal_clk {
+       clock-frequency = <24000000>;
+};
+
+&gpu {
+       mali-supply = <&reg_1p1v>;
+};
+
+&i2c0 {
+       pinctrl-0 = <&i2c0_pins>;
+       pinctrl-names = "default";
+
+       clock-frequency = <400000>;
+       status = "okay";
+
+       hdmi-bridge@48 {
+               compatible = "lontium,lt8912b";
+               reg = <0x48> ;
+               reset-gpios = <&pinctrl RZG2L_GPIO(42, 2) GPIO_ACTIVE_LOW>;
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@0 {
+                               reg = <0>;
+
+                               lt8912_in: endpoint {
+                                       data-lanes = <1 2 3 4>;
+                                       remote-endpoint = <&dsi_out>;
+                               };
+                       };
+
+                       port@1 {
+                               reg = <1>;
+
+                               lt8912_out: endpoint {
+                                       remote-endpoint = <&hdmi_con>;
+                               };
+                       };
+               };
+       };
+};
+
+&i2c1 {
+       pinctrl-0 = <&i2c1_pins>;
+       pinctrl-names = "default";
+       clock-frequency = <100000>;
+       status = "okay";
+};
+
+&i2c2 {
+       pinctrl-0 = <&i2c2_pins>;
+       pinctrl-names = "default";
+       clock-frequency = <100000>;
+       status = "okay";
+};
+
+&i2c3 {
+       pinctrl-0 = <&i2c3_pins>;
+       pinctrl-names = "default";
+       clock-frequency = <100000>;
+       status = "okay";
+};
+
+&mtu3 {
+       status = "okay";
+};
+
+&ohci1 {
+       status = "okay";
+};
+
+&ostm1 {
+       status = "okay";
+};
+
+&ostm2 {
+       status = "okay";
+};
+
+&phyrst {
+       status = "okay";
+};
+
+&pinctrl {
+       eth0_pins: eth0 {
+               pinmux = <RZG2L_PORT_PINMUX(27, 1, 1)>, /* ET0_MDC */
+                        <RZG2L_PORT_PINMUX(28, 0, 1)>, /* ET0_MDIO */
+                        <RZG2L_PORT_PINMUX(20, 0, 1)>, /* ET0_TXC */
+                        <RZG2L_PORT_PINMUX(20, 1, 1)>, /* ET0_TX_CTL */
+                        <RZG2L_PORT_PINMUX(20, 2, 1)>, /* ET0_TXD0 */
+                        <RZG2L_PORT_PINMUX(21, 0, 1)>, /* ET0_TXD1 */
+                        <RZG2L_PORT_PINMUX(21, 1, 1)>, /* ET0_TXD2 */
+                        <RZG2L_PORT_PINMUX(22, 0, 1)>, /* ET0_TXD3 */
+                        <RZG2L_PORT_PINMUX(24, 0, 1)>, /* ET0_RXC */
+                        <RZG2L_PORT_PINMUX(24, 1, 1)>, /* ET0_RX_CTL */
+                        <RZG2L_PORT_PINMUX(25, 0, 1)>, /* ET0_RXD0 */
+                        <RZG2L_PORT_PINMUX(25, 1, 1)>, /* ET0_RXD1 */
+                        <RZG2L_PORT_PINMUX(26, 0, 1)>, /* ET0_RXD2 */
+                        <RZG2L_PORT_PINMUX(26, 1, 1)>; /* ET0_RXD3 */
+       };
+
+       eth1_pins: eth1 {
+               pinmux = <RZG2L_PORT_PINMUX(37, 0, 1)>, /* ET1_MDC */
+                        <RZG2L_PORT_PINMUX(37, 1, 1)>, /* ET1_MDIO */
+                        <RZG2L_PORT_PINMUX(29, 0, 1)>, /* ET1_TXC */
+                        <RZG2L_PORT_PINMUX(29, 1, 1)>, /* ET1_TX_CTL */
+                        <RZG2L_PORT_PINMUX(30, 0, 1)>, /* ET1_TXD0 */
+                        <RZG2L_PORT_PINMUX(30, 1, 1)>, /* ET1_TXD1 */
+                        <RZG2L_PORT_PINMUX(31, 0, 1)>, /* ET1_TXD2 */
+                        <RZG2L_PORT_PINMUX(31, 1, 1)>, /* ET1_TXD3 */
+                        <RZG2L_PORT_PINMUX(33, 1, 1)>, /* ET1_RXC */
+                        <RZG2L_PORT_PINMUX(34, 0, 1)>, /* ET1_RX_CTL */
+                        <RZG2L_PORT_PINMUX(34, 1, 1)>, /* ET1_RXD0 */
+                        <RZG2L_PORT_PINMUX(35, 0, 1)>, /* ET1_RXD1 */
+                        <RZG2L_PORT_PINMUX(35, 1, 1)>, /* ET1_RXD2 */
+                        <RZG2L_PORT_PINMUX(36, 0, 1)>; /* ET1_RXD3 */
+       };
+
+       i2c0_pins: i2c0 {
+               pins = "RIIC0_SDA", "RIIC0_SCL";
+               input-enable;
+       };
+
+       i2c1_pins: i2c1 {
+               pins = "RIIC1_SDA", "RIIC1_SCL";
+               input-enable;
+       };
+
+       i2c2_pins: i2c2 {
+               pinmux = <RZG2L_PORT_PINMUX(3, 0, 2)>, /* SDA */
+                        <RZG2L_PORT_PINMUX(3, 1, 2)>; /* SCL */
+       };
+
+       i2c3_pins: i2c3 {
+               pinmux = <RZG2L_PORT_PINMUX(18, 0, 3)>, /* SDA */
+                        <RZG2L_PORT_PINMUX(18, 1, 3)>; /* SCL */
+       };
+
+       scif0_pins: scif0 {
+               pinmux = <RZG2L_PORT_PINMUX(38, 0, 1)>, /* TxD */
+                        <RZG2L_PORT_PINMUX(38, 1, 1)>; /* RxD */
+       };
+
+       scif4_pins: scif4 {
+               pinmux = <RZG2L_PORT_PINMUX(2, 0, 5)>, /* TxD */
+                        <RZG2L_PORT_PINMUX(2, 1, 5)>; /* RxD */
+       };
+
+       sdhi0_pins: sd0 {
+               sd0-ctrl {
+                       pins = "SD0_CLK", "SD0_CMD";
+                       power-source = <1800>;
+               };
+
+               sd0-data {
+                       pins = "SD0_DATA0", "SD0_DATA1", "SD0_DATA2", "SD0_DATA3",
+                              "SD0_DATA4", "SD0_DATA5", "SD0_DATA6", "SD0_DATA7";
+                       power-source = <1800>;
+               };
+
+               sd0-rst {
+                       pins = "SD0_RST#";
+                       power-source = <1800>;
+               };
+       };
+};
+
+&scif0 {
+       pinctrl-0 = <&scif0_pins>;
+       pinctrl-names = "default";
+       status = "okay";
+};
+
+&scif4 {
+       pinctrl-0 = <&scif4_pins>;
+       pinctrl-names = "default";
+       status = "okay";
+};
+
+&sdhi0 {
+       pinctrl-0 = <&sdhi0_pins>;
+       pinctrl-1 = <&sdhi0_pins>;
+       pinctrl-names = "default", "state_uhs";
+
+       vmmc-supply = <&reg_3p3v>;
+       vqmmc-supply = <&reg_1p8v>;
+       bus-width = <8>;
+       mmc-hs200-1_8v;
+       non-removable;
+       fixed-emmc-driver-type = <1>;
+       status = "okay";
+};
+
+&usb2_phy1 {
+       status = "okay";
+};