mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 13:00:33 +07:00
e98d72d98a
The Orange Pi Plus board lacks voltage scaling capabilities in its current form. This results in random freezes during boot when cpufreq is enabled, probably due to wrong voltages. This patch (more or less copy/paste from 06139c) does the following things on this board: - enable r_i2c - add sy8106a to the r_i2c bus - have the sy8106a regulate VDD of cpu Since the Orange Pi Plus has the same PMU setup as the Orange Pi PC, I simply took min/max/fixed/ramp from the latter DTS. In that file the origin of the values are described by the following comment: "The datasheet uses 1.1V as the minimum value of VDD-CPUX, however both the Armbian DVFS table and the official one have operating points with voltage under 1.1V, and both DVFS table are known to work properly at the lowest operating point. Use 1.0V as the minimum voltage instead." I have tested this on patch two Orange Pi Plus boards, by running a kernel with this patch and do intermettent runs of cpuburn while monitoring voltage, frequency and temperature. The board runs stable across its operatiing points while showing a reasonable (< 40C) temperature. My Orange Pi PC, when put to the same test, yields similar stable results. Signed-off-by: Jorik Jonker <jorik@kippendief.biz> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
145 lines
3.9 KiB
Plaintext
145 lines
3.9 KiB
Plaintext
/*
|
|
* Copyright (C) 2015 Jens Kuske <jenskuske@gmail.com>
|
|
*
|
|
* This file is dual-licensed: you can use it either under the terms
|
|
* of the GPL or the X11 license, at your option. Note that this dual
|
|
* licensing only applies to this file, and not this project as a
|
|
* whole.
|
|
*
|
|
* a) This file is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* This file is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* Or, alternatively,
|
|
*
|
|
* b) Permission is hereby granted, free of charge, to any person
|
|
* obtaining a copy of this software and associated documentation
|
|
* files (the "Software"), to deal in the Software without
|
|
* restriction, including without limitation the rights to use,
|
|
* copy, modify, merge, publish, distribute, sublicense, and/or
|
|
* sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following
|
|
* conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
/* The Orange Pi Plus is an extended version of the Orange Pi 2 */
|
|
#include "sun8i-h3-orangepi-2.dts"
|
|
|
|
/ {
|
|
model = "Xunlong Orange Pi Plus / Plus 2";
|
|
compatible = "xunlong,orangepi-plus", "allwinner,sun8i-h3";
|
|
|
|
aliases {
|
|
ethernet0 = &emac;
|
|
};
|
|
|
|
reg_gmac_3v3: gmac-3v3 {
|
|
compatible = "regulator-fixed";
|
|
regulator-name = "gmac-3v3";
|
|
regulator-min-microvolt = <3300000>;
|
|
regulator-max-microvolt = <3300000>;
|
|
startup-delay-us = <100000>;
|
|
enable-active-high;
|
|
gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>;
|
|
};
|
|
|
|
reg_usb3_vbus: usb3-vbus {
|
|
compatible = "regulator-fixed";
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&usb3_vbus_pin_a>;
|
|
regulator-name = "usb3-vbus";
|
|
regulator-min-microvolt = <5000000>;
|
|
regulator-max-microvolt = <5000000>;
|
|
regulator-boot-on;
|
|
enable-active-high;
|
|
gpio = <&pio 6 11 GPIO_ACTIVE_HIGH>;
|
|
};
|
|
};
|
|
|
|
&cpu0 {
|
|
cpu-supply = <®_vdd_cpux>;
|
|
};
|
|
|
|
&ehci3 {
|
|
status = "okay";
|
|
};
|
|
|
|
&emac {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&emac_rgmii_pins>;
|
|
phy-supply = <®_gmac_3v3>;
|
|
phy-handle = <&ext_rgmii_phy>;
|
|
phy-mode = "rgmii";
|
|
|
|
status = "okay";
|
|
};
|
|
|
|
&external_mdio {
|
|
ext_rgmii_phy: ethernet-phy@1 {
|
|
compatible = "ethernet-phy-ieee802.3-c22";
|
|
reg = <0>;
|
|
};
|
|
};
|
|
|
|
&mmc2 {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&mmc2_8bit_pins>;
|
|
vmmc-supply = <®_vcc3v3>;
|
|
bus-width = <8>;
|
|
non-removable;
|
|
cap-mmc-hw-reset;
|
|
status = "okay";
|
|
};
|
|
|
|
&mmc2_8bit_pins {
|
|
/* Increase drive strength for DDR modes */
|
|
drive-strength = <40>;
|
|
/* eMMC is missing pull-ups */
|
|
bias-pull-up;
|
|
};
|
|
|
|
&pio {
|
|
usb3_vbus_pin_a: usb3_vbus_pin {
|
|
pins = "PG11";
|
|
function = "gpio_out";
|
|
};
|
|
};
|
|
|
|
&r_i2c {
|
|
status = "okay";
|
|
|
|
reg_vdd_cpux: regulator@65 {
|
|
compatible = "silergy,sy8106a";
|
|
reg = <0x65>;
|
|
regulator-name = "vdd-cpux";
|
|
silergy,fixed-microvolt = <1200000>;
|
|
regulator-min-microvolt = <1000000>;
|
|
regulator-max-microvolt = <1400000>;
|
|
regulator-ramp-delay = <200>;
|
|
regulator-boot-on;
|
|
regulator-always-on;
|
|
};
|
|
};
|
|
|
|
&usbphy {
|
|
usb3_vbus-supply = <®_usb3_vbus>;
|
|
};
|