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linux-brain/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
Andre Przywara 24932862d9 arm64: dts: allwinner: A64: Limit MMC2 bus frequency to 150 MHz 
[ Upstream commit 948c657cc45e8ce48cb533d4e2106145fa765759 ]

In contrast to the H6 (and later) manuals, the A64 datasheet does not
specify any limitations in the maximum possible frequency for eMMC
controllers.
However experimentation has found that a 150 MHz limit similar to other
SoCs and also the MMC0 and MMC1 controllers on the A64 seems to exist
for the MMC2 controller.

Limit the frequency for the MMC2 controller to 150 MHz in the SoC .dtsi.
The Pinebook seems to be the an odd exception, since it apparently seems
to work with 200 MHz as well, so overwrite this in its board .dts file.

Tested on a Pine64-LTS: 200 MHz HS-200 fails, 150 MHz HS-200 works.

Fixes: 22be992fae ("arm64: allwinner: a64: Increase the MMC max frequency")
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20210113152630.28810-7-andre.przywara@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-04 10:26:13 +01:00

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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.xyz>
* Copyright (C) 2018 Vasily Khoruzhick <anarsoul@gmail.com>
*
*/
/dts-v1/;
#include "sun50i-a64.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/pwm/pwm.h>
/ {
model = "Pinebook";
compatible = "pine64,pinebook", "allwinner,sun50i-a64";
aliases {
serial0 = &uart0;
ethernet0 = &rtl8723cs;
};
vdd_bl: regulator@0 {
compatible = "regulator-fixed";
regulator-name = "bl-3v3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&pio 7 6 GPIO_ACTIVE_HIGH>; /* PH6 */
enable-active-high;
};
backlight: backlight {
compatible = "pwm-backlight";
pwms = <&pwm 0 50000 0>;
brightness-levels = <0 5 10 15 20 30 40 55 70 85 100>;
default-brightness-level = <2>;
enable-gpios = <&pio 3 23 GPIO_ACTIVE_HIGH>; /* PD23 */
power-supply = <&vdd_bl>;
};
chosen {
stdout-path = "serial0:115200n8";
framebuffer-lcd {
panel-supply = <&reg_dc1sw>;
dvdd25-supply = <&reg_dldo2>;
dvdd12-supply = <&reg_fldo1>;
};
};
gpio_keys {
compatible = "gpio-keys";
lid_switch {
label = "Lid Switch";
gpios = <&r_pio 0 12 GPIO_ACTIVE_LOW>; /* PL12 */
linux,input-type = <EV_SW>;
linux,code = <SW_LID>;
linux,can-disable;
wakeup-source;
};
};
reg_vcc3v3: vcc3v3 {
compatible = "regulator-fixed";
regulator-name = "vcc3v3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
wifi_pwrseq: wifi_pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
};
speaker_amp: audio-amplifier {
compatible = "simple-audio-amplifier";
/*
* TODO This is actually a fixed regulator controlled by
* the GPIO line on the PMIC. This should be corrected
* once GPIO support is added for this PMIC.
*/
VCC-supply = <&reg_ldo_io0>;
enable-gpios = <&pio 7 7 GPIO_ACTIVE_HIGH>; /* PH7 */
sound-name-prefix = "Speaker Amp";
};
};
&codec {
status = "okay";
};
&codec_analog {
cpvdd-supply = <&reg_eldo1>;
status = "okay";
};
&dai {
status = "okay";
};
&ehci0 {
status = "okay";
};
&ehci1 {
status = "okay";
};
&mmc0 {
pinctrl-names = "default";
pinctrl-0 = <&mmc0_pins>;
vmmc-supply = <&reg_dcdc1>;
cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>;
disable-wp;
bus-width = <4>;
status = "okay";
};
&mmc1 {
pinctrl-names = "default";
pinctrl-0 = <&mmc1_pins>;
vmmc-supply = <&reg_dldo4>;
vqmmc-supply = <&reg_eldo1>;
mmc-pwrseq = <&wifi_pwrseq>;
bus-width = <4>;
non-removable;
status = "okay";
rtl8723cs: wifi@1 {
reg = <1>;
};
};
&mmc2 {
pinctrl-names = "default";
pinctrl-0 = <&mmc2_pins>, <&mmc2_ds_pin>;
vmmc-supply = <&reg_dcdc1>;
vqmmc-supply = <&reg_eldo1>;
max-frequency = <200000000>;
bus-width = <8>;
non-removable;
cap-mmc-hw-reset;
mmc-hs200-1_8v;
status = "okay";
};
&ohci0 {
status = "okay";
};
&ohci1 {
status = "okay";
};
&pwm {
status = "okay";
};
&r_rsb {
status = "okay";
axp803: pmic@3a3 {
compatible = "x-powers,axp803";
reg = <0x3a3>;
interrupt-parent = <&r_intc>;
interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
};
};
/* The ANX6345 eDP-bridge is on r_i2c */
&r_i2c {
clock-frequency = <100000>;
pinctrl-names = "default";
pinctrl-0 = <&r_i2c_pl89_pins>;
status = "okay";
};
#include "axp803.dtsi"
&ac_power_supply {
status = "okay";
};
&battery_power_supply {
status = "okay";
};
&reg_aldo1 {
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-name = "vcc-csi";
};
&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 = <2700000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vcc-pll-avcc";
};
&reg_dc1sw {
regulator-name = "vcc-lcd";
};
&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 = <1000000>;
regulator-max-microvolt = <1300000>;
regulator-name = "vdd-cpux";
};
/* DCDC3 is polyphased with DCDC2 */
&reg_dcdc5 {
regulator-always-on;
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
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 = <2500000>;
regulator-max-microvolt = <2500000>;
regulator-name = "vcc-edp";
};
&reg_dldo3 {
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "avdd-csi";
};
&reg_dldo4 {
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vcc-wifi";
};
&reg_eldo1 {
regulator-always-on;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-name = "cpvdd";
};
&reg_eldo3 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-name = "vdd-1v8-csi";
};
&reg_fldo1 {
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
regulator-name = "vcc-1v2-hsic";
};
&reg_fldo2 {
regulator-always-on;
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
regulator-name = "vdd-cpus";
};
&reg_ldo_io0 {
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vcc-usb";
status = "okay";
};
&reg_rtc_ldo {
regulator-name = "vcc-rtc";
};
&simplefb_hdmi {
vcc-hdmi-supply = <&reg_dldo1>;
};
&sound {
status = "okay";
simple-audio-card,aux-devs = <&codec_analog>, <&speaker_amp>;
simple-audio-card,widgets = "Microphone", "Internal Microphone Left",
"Microphone", "Internal Microphone Right",
"Headphone", "Headphone Jack",
"Speaker", "Internal Speaker";
simple-audio-card,routing =
"Left DAC", "AIF1 Slot 0 Left",
"Right DAC", "AIF1 Slot 0 Right",
"Speaker Amp INL", "LINEOUT",
"Speaker Amp INR", "LINEOUT",
"Internal Speaker", "Speaker Amp OUTL",
"Internal Speaker", "Speaker Amp OUTR",
"Headphone Jack", "HP",
"AIF1 Slot 0 Left ADC", "Left ADC",
"AIF1 Slot 0 Right ADC", "Right ADC",
"Internal Microphone Left", "MBIAS",
"MIC1", "Internal Microphone Left",
"Internal Microphone Right", "HBIAS",
"MIC2", "Internal Microphone Right";
};
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pb_pins>;
status = "okay";
};
&usb_otg {
dr_mode = "host";
};
&usbphy {
usb0_vbus-supply = <&reg_ldo_io0>;
usb1_vbus-supply = <&reg_ldo_io0>;
status = "okay";
};
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