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From f1b3ddb3ecc2eec1f912383e01156c226daacfab Mon Sep 17 00:00:00 2001
From: Andre Przywara <andre.przywara@arm.com>
Date: Fri, 4 Aug 2023 18:08:56 +0100
Subject: [PATCH] arm64: dts: allwinner: h616: Add OrangePi Zero 3 board
support
The OrangePi Zero 3 is a development board based on the Allwinner H618 SoC,
which seems to be just an H616 with more L2 cache. The board itself is a
slightly updated version of the Orange Pi Zero 2. It features:
- Four ARM Cortex-A53 cores, Mali-G31 MP2 GPU
- 1/1.5/2/4 GiB LPDDR4 DRAM SKUs (only up to 1GB on the Zero2)
- AXP313a PMIC (more capable AXP305 on the Zero2)
- Raspberry-Pi-1 compatible GPIO header
- extra 13 pin expansion header, exposing pins for 2x USB 2.0 ports
- 1 USB 2.0 host port
- 1 USB 2.0 type C port (power supply + OTG)
- MicroSD slot
- on-board 16MiB bootable SPI NOR flash (only 2MB on the Zero2)
- 1Gbps Ethernet port (via Motorcomm YT8531 PHY) (RTL8211 on the Zero2)
- micro-HDMI port
- (yet) unsupported Allwinner WiFi/BT chip
Add the devicetree file describing the currently supported features,
namely LEDs, SD card, PMIC, SPI flash, USB. Ethernet seems unstable at
the moment, though the basic functionality works.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20230804170856.1237202-4-andre.przywara@arm.com
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
---
arch/arm64/boot/dts/allwinner/Makefile | 1 +
.../allwinner/sun50i-h618-orangepi-zero3.dts | 94 +++++++++++++++++++
2 files changed, 95 insertions(+)
create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero3.dts
--- a/arch/arm64/boot/dts/allwinner/Makefile
+++ b/arch/arm64/boot/dts/allwinner/Makefile
@@ -40,3 +40,4 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-ta
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6-mini.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-orangepi-zero2.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-x96-mate.dtb
+dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h618-orangepi-zero3.dtb
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero3.dts
@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+/*
+ * Copyright (C) 2023 Arm Ltd.
+ */
+
+/dts-v1/;
+
+#include "sun50i-h616-orangepi-zero.dtsi"
+
+/ {
+ model = "OrangePi Zero3";
+ compatible = "xunlong,orangepi-zero3", "allwinner,sun50i-h618";
+};
+
+&emac0 {
+ phy-supply = <®_dldo1>;
+};
+
+&ext_rgmii_phy {
+ motorcomm,clk-out-frequency-hz = <125000000>;
+};
+
+&mmc0 {
+ /*
+ * The schematic shows the card detect pin wired up to PF6, via an
+ * inverter, but it just doesn't work.
+ */
+ broken-cd;
+ vmmc-supply = <®_dldo1>;
+};
+
+&r_i2c {
+ status = "okay";
+
+ axp313: pmic@36 {
+ compatible = "x-powers,axp313a";
+ reg = <0x36>;
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ interrupt-parent = <&pio>;
+ interrupts = <2 9 IRQ_TYPE_LEVEL_LOW>; /* PC9 */
+
+ vin1-supply = <®_vcc5v>;
+ vin2-supply = <®_vcc5v>;
+ vin3-supply = <®_vcc5v>;
+
+ regulators {
+ /* Supplies VCC-PLL, so needs to be always on. */
+ reg_aldo1: aldo1 {
+ regulator-always-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-name = "vcc1v8";
+ };
+
+ /* Supplies VCC-IO, so needs to be always on. */
+ reg_dldo1: dldo1 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc3v3";
+ };
+
+ reg_dcdc1: dcdc1 {
+ regulator-always-on;
+ regulator-min-microvolt = <810000>;
+ regulator-max-microvolt = <990000>;
+ regulator-name = "vdd-gpu-sys";
+ };
+
+ reg_dcdc2: dcdc2 {
+ regulator-always-on;
+ regulator-min-microvolt = <810000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-cpu";
+ };
+
+ reg_dcdc3: dcdc3 {
+ regulator-always-on;
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-dram";
+ };
+ };
+ };
+};
+
+&pio {
+ vcc-pc-supply = <®_dldo1>;
+ vcc-pf-supply = <®_dldo1>;
+ vcc-pg-supply = <®_aldo1>;
+ vcc-ph-supply = <®_dldo1>;
+ vcc-pi-supply = <®_dldo1>;
+};
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