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99545b4bb1
This target adds support for the Allwinner D1 RISC-V based SoCs.
- RISC-V single-core T-Head C906 (RV64GCV)
- Tensilica HiFi4 DSP
- DDR2/DDR3 support
- 10/100/1000M ethernet
- usual peripherals like USB2, SPI, I2C, PWM, etc.
Four boards are supported:
- Dongshan Nezha STU
- 512Mb RAM
- ethernet
- LicheePi RV Dock
- 512Mb RAM
- wireless-only (RTL8723DS)
- MangoPi MQ-Pro
- 512Mb RAM
- there are pads available for an SPI flash
- wireless-only (RTL8723DS)
- Nezha D1
- 512Mb/1Gb/2Gb RAM
- 256Mb NAND flash
- ethernet, wireless
Installation:
Standard SD-card installation via dd-ing the generated image to
an SD-card of at least 256Mb.
Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
125 lines
3.3 KiB
Diff
125 lines
3.3 KiB
Diff
From 5479c8efb6ffbbc8b7fd1068337037faf9c20a36 Mon Sep 17 00:00:00 2001
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From: Samuel Holland <samuel@sholland.org>
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Date: Thu, 11 Aug 2022 22:25:40 -0500
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Subject: [PATCH 064/117] riscv: dts: allwinner: d1: Hook up PWM-controlled CPU
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voltage regulators
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Signed-off-by: Samuel Holland <samuel@sholland.org>
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---
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.../allwinner/sun20i-d1-clockworkpi-v3.14.dts | 19 +++++++++++--------
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.../sun20i-d1-dongshan-nezha-stu.dts | 19 +++++++++++--------
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.../boot/dts/allwinner/sun20i-d1-nezha.dts | 19 +++++++++++--------
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3 files changed, 33 insertions(+), 24 deletions(-)
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--- a/arch/riscv/boot/dts/allwinner/sun20i-d1-clockworkpi-v3.14.dts
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+++ b/arch/riscv/boot/dts/allwinner/sun20i-d1-clockworkpi-v3.14.dts
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@@ -48,16 +48,13 @@
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};
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};
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- /*
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- * This regulator is PWM-controlled, but the PWM controller is not
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- * yet supported, so fix the regulator to its default voltage.
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- */
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reg_vdd_cpu: vdd-cpu {
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- compatible = "regulator-fixed";
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+ compatible = "pwm-regulator";
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+ pwms = <&pwm 0 50000 0>;
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+ pwm-supply = <®_vcc>;
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regulator-name = "vdd-cpu";
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- regulator-min-microvolt = <1100000>;
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- regulator-max-microvolt = <1100000>;
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- vin-supply = <®_vcc>;
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+ regulator-min-microvolt = <810000>;
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+ regulator-max-microvolt = <1160000>;
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};
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wifi_pwrseq: wifi-pwrseq {
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@@ -254,6 +251,12 @@
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};
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};
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+&pwm {
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+ pinctrl-0 = <&pwm0_pd16_pin>;
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+ pinctrl-names = "default";
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+ status = "okay";
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+};
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+
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&uart0 {
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pinctrl-0 = <&uart0_pb8_pins>;
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pinctrl-names = "default";
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--- a/arch/riscv/boot/dts/allwinner/sun20i-d1-dongshan-nezha-stu.dts
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+++ b/arch/riscv/boot/dts/allwinner/sun20i-d1-dongshan-nezha-stu.dts
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@@ -43,16 +43,13 @@
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vin-supply = <®_vcc>;
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};
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- /*
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- * This regulator is PWM-controlled, but the PWM controller is not
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- * yet supported, so fix the regulator to its default voltage.
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- */
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reg_vdd_cpu: vdd-cpu {
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- compatible = "regulator-fixed";
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+ compatible = "pwm-regulator";
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+ pwms = <&pwm 0 50000 0>;
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+ pwm-supply = <®_vcc>;
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regulator-name = "vdd-cpu";
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- regulator-min-microvolt = <1100000>;
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- regulator-max-microvolt = <1100000>;
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- vin-supply = <®_vcc>;
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+ regulator-min-microvolt = <810000>;
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+ regulator-max-microvolt = <1160000>;
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};
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};
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@@ -95,6 +92,12 @@
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status = "okay";
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};
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+&pwm {
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+ pinctrl-0 = <&pwm0_pd16_pin>;
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+ pinctrl-names = "default";
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+ status = "okay";
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+};
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+
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&uart0 {
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pinctrl-0 = <&uart0_pb8_pins>;
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pinctrl-names = "default";
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--- a/arch/riscv/boot/dts/allwinner/sun20i-d1-nezha.dts
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+++ b/arch/riscv/boot/dts/allwinner/sun20i-d1-nezha.dts
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@@ -35,16 +35,13 @@
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vin-supply = <®_vcc>;
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};
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- /*
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- * This regulator is PWM-controlled, but the PWM controller is not
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- * yet supported, so fix the regulator to its default voltage.
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- */
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reg_vdd_cpu: vdd-cpu {
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- compatible = "regulator-fixed";
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+ compatible = "pwm-regulator";
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+ pwms = <&pwm 0 50000 0>;
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+ pwm-supply = <®_vcc>;
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regulator-name = "vdd-cpu";
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- regulator-min-microvolt = <1100000>;
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- regulator-max-microvolt = <1100000>;
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- vin-supply = <®_vcc>;
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+ regulator-min-microvolt = <810000>;
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+ regulator-max-microvolt = <1160000>;
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};
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wifi_pwrseq: wifi-pwrseq {
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@@ -155,6 +152,12 @@
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status = "okay";
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};
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+&pwm {
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+ pinctrl-0 = <&pwm0_pd16_pin>;
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+ pinctrl-names = "default";
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+ status = "okay";
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+};
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+
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&uart0 {
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pinctrl-0 = <&uart0_pb8_pins>;
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pinctrl-names = "default";
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