[PATCH v2 1/2] arm64: allwinner: a64: enable AXP803 regulators for Pine64

From: Icenowy Zheng
Date: Fri Jul 21 2017 - 22:19:28 EST


Add support of AXP803 regulators in the Pine64 device tree.

The phy-supply regulator is also set in EMAC device node, in order to
prevent Ethernet regression by regulator get disabled by regulator
framework.

Signed-off-by: Icenowy Zheng <icenowy@xxxxxxx>
---
Changes in v2:
- Change the min voltage of vdd-cpux to 1.04V.
- Added constraints for FLDO1 (vcc-1v2-hsic), as it's connected to the SoC
(although HSIC function is not used).

.../arm64/boot/dts/allwinner/sun50i-a64-pine64.dts | 102 +++++++++++++++++++++
1 file changed, 102 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
index 64cce0d68cae..2bcf0a3e36b4 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
@@ -83,6 +83,7 @@
pinctrl-0 = <&rmii_pins>;
phy-mode = "rmii";
phy-handle = <&ext_rmii_phy1>;
+ phy-supply = <&reg_dc1sw>;
status = "okay";

};
@@ -134,6 +135,107 @@
};
};

+#include "axp803.dtsi"
+
+&reg_aldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-pl";
+};
+
+&reg_aldo3 {
+ regulator-always-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-name = "vcc-pll-avcc";
+};
+
+&reg_dc1sw {
+ regulator-name = "vcc-phy";
+};
+
+&reg_dcdc1 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-3v3";
+};
+
+&reg_dcdc2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1040000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-name = "vdd-cpux";
+};
+
+/* DCDC3 is polyphased with DCDC2 */
+
+/*
+ * The DRAM chips used by Pine64 boards are DDR3L-compatible, so they can
+ * work at 1.35V with less power consumption.
+ * As AXP803 DCDC5 cannot reach 1.35V accurately, use 1.36V instead.
+ */
+&reg_dcdc5 {
+ regulator-always-on;
+ regulator-min-microvolt = <1360000>;
+ regulator-max-microvolt = <1360000>;
+ regulator-name = "vcc-dram";
+};
+
+&reg_dcdc6 {
+ regulator-always-on;
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-sys";
+};
+
+&reg_dldo1 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-hdmi";
+};
+
+&reg_dldo2 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-mipi";
+};
+
+&reg_dldo4 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-wifi";
+};
+
+&reg_eldo1 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-name = "cpvdd";
+};
+
+&reg_fldo1 {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-name = "vcc-1v2-hsic";
+};
+
+/*
+ * The A64 chip cannot work without this regulator off, although
+ * it seems to be only driving the AR100 core.
+ * Maybe we don't still know well about CPUs domain.
+ */
+&reg_fldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-cpus";
+};
+
+&reg_rtc_ldo {
+ regulator-name = "vcc-rtc";
+};
+
/* On Exp and Euler connectors */
&uart0 {
pinctrl-names = "default";
--
2.13.0