Message-Id: <20200708082821.13188-1-frank@allwinnertech.com>
Date:   Wed,  8 Jul 2020 16:28:21 +0800
From:   Frank Lee <frank@...winnertech.com>
To:     mripard@...nel.org, wens@...e.org, robh+dt@...nel.org,
        tiny.windzz@...il.com
Cc:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, huangshuosheng@...winnertech.com,
        liyong@...winnertech.com, Frank Lee <frank@...winnertech.com>
Subject: [PATCH v3 16/16] arm64: allwinner: A100: add support for Allwinner Perf1 board

A100 perf1 is an Allwinner A100-based SBC, with the following features:

- 1GiB DDR3 DRAM
- AXP803 PMIC
- 2 USB 2.0 ports
- MicroSD slot and on-board eMMC module
- on-board Nand flash
- ···

Adds initial support for it, including UART and PMU.

Signed-off-by: Frank Lee <frank@...winnertech.com>
---
 arch/arm64/boot/dts/allwinner/Makefile             |   1 +
 .../dts/allwinner/sun50i-a100-allwinner-perf1.dts  | 180 +++++++++++++++++++++
 2 files changed, 181 insertions(+)
 create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-a100-allwinner-perf1.dts

diff --git a/arch/arm64/boot/dts/allwinner/Makefile b/arch/arm64/boot/dts/allwinner/Makefile
index e4d3cd0..ab780db 100644
--- a/arch/arm64/boot/dts/allwinner/Makefile
+++ b/arch/arm64/boot/dts/allwinner/Makefile
@@ -14,6 +14,7 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-pinephone-1.1.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-pinetab.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-sopine-baseboard.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-teres-i.dtb
+dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a100-allwinner-perf1.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-bananapi-m2-plus.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-bananapi-m2-plus-v1.2.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-emlid-neutis-n5-devboard.dtb
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a100-allwinner-perf1.dts b/arch/arm64/boot/dts/allwinner/sun50i-a100-allwinner-perf1.dts
new file mode 100644
index 0000000..38621bb
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a100-allwinner-perf1.dts
@@ -0,0 +1,180 @@
+// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+/*
+ * Copyright (c) 2020 Frank Lee <frank@...winnertech.com>
+ */
+
+/dts-v1/;
+
+#include "sun50i-a100.dtsi"
+
+/{
+	model = "Allwinner A100 Perf1";
+	compatible = "allwinner,a100-perf1", "allwinner,sun50i-a100";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&pio {
+	vcc-pb-supply = <&reg_dcdc1>;
+	vcc-pc-supply = <&reg_eldo1>;
+	vcc-pd-supply = <&reg_dcdc1>;
+	vcc-pe-supply = <&reg_dldo2>;
+	vcc-pf-supply = <&reg_dcdc1>;
+	vcc-pg-supply = <&reg_dldo1>;
+	vcc-ph-supply = <&reg_dcdc1>;
+};
+
+&r_pio {
+	/*
+	 * FIXME: We can't add that supply for now since it would
+	 * create a circular dependency between pinctrl, the regulator
+	 * and the RSB Bus.
+	 *
+	 * vcc-pl-supply = <&reg_aldo3>;
+	 */
+};
+
+&r_i2c0 {
+	status = "okay";
+
+	axp803: pmic@34 {
+		compatible = "x-powers,axp803";
+		reg = <0x34>;
+		interrupt-parent = <&r_intc>;
+		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+		x-powers,drive-vbus-en; /* set N_VBUSEN as output pin */
+	};
+};
+
+#include "axp803.dtsi"
+
+&ac_power_supply {
+	status = "okay";
+};
+
+&reg_aldo1 {
+	regulator-always-on;
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <1800000>;
+	regulator-name = "vcc-pll-avcc";
+};
+
+&reg_aldo2 {
+	regulator-always-on;
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <1800000>;
+	regulator-name = "vcc-dram-1";
+};
+
+&reg_aldo3 {
+	regulator-always-on;
+	regulator-min-microvolt = <3300000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-usb-pl";
+};
+
+&reg_dcdc1 {
+	regulator-always-on;
+	regulator-min-microvolt = <3300000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-pc-io-usb-pd-emmc-nand-card";
+};
+
+&reg_dcdc2 {
+	regulator-always-on;
+	/*
+	 * FIXME: update min and max before support dvfs.
+	 */
+	regulator-min-microvolt = <500000>;
+	regulator-max-microvolt = <1300000>;
+	regulator-name = "vdd-cpux";
+};
+
+/* DCDC3 is polyphased with DCDC2 */
+
+&reg_dcdc4 {
+	regulator-always-on;
+	regulator-min-microvolt = <950000>;
+	regulator-max-microvolt = <950000>;
+	regulator-name = "vdd-sys-usb-dram";
+};
+
+&reg_dcdc5 {
+	regulator-always-on;
+	regulator-min-microvolt = <1500000>;
+	regulator-max-microvolt = <1500000>;
+	regulator-name = "vcc-dram-2";
+};
+
+&reg_dldo1 {
+	regulator-min-microvolt = <3300000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-pg-dcxo-wifi";
+};
+
+&reg_dldo2 {
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <2800000>;
+	regulator-name = "vcc-pe-csi";
+};
+
+&reg_dldo3 {
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "ldo-avdd-csi";
+};
+
+&reg_dldo4 {
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <2800000>;
+	regulator-name = "avcc-csi";
+};
+
+&reg_eldo1 {
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <1800000>;
+	regulator-name = "vcc-pc-lvds-csi-efuse-emmc-nand";
+};
+
+&reg_eldo2 {
+	regulator-min-microvolt = <1200000>;
+	regulator-max-microvolt = <1800000>;
+	regulator-name = "dvdd-csi";
+};
+
+&reg_eldo3 {
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <1800000>;
+	regulator-name = "vcc-mipi-lcd";
+};
+
+&reg_fldo1 {
+	regulator-always-on;
+	regulator-min-microvolt = <900000>;
+	regulator-max-microvolt = <900000>;
+	regulator-name = "vdd-cpus-usb";
+};
+
+&reg_ldo_io0 {
+	regulator-min-microvolt = <3300000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-ctp";
+	status = "okay";
+};
+
+&reg_drivevbus {
+	regulator-name = "usb0-vbus";
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pb_pins>;
+	status = "okay";
+};
-- 
1.9.1

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