c7b0311500
The NanoPi M4B is a minor revision of the original M4.
The differences against the original Nanopi M4 that are common with the
other M4V2 revision include:
- microphone header removed
- power button added
- recovery button added
Additional changes specific to the M4B:
- USB 3.0 hub removed; board now has 2x USB 3.0 type-A ports and 2x
USB 2.0 ports
- ADB toggle switch added; this changes the top USB 3.0 host port to
a peripheral port
- Type-C port no longer supports data or PD
- WiFi/Bluetooth combo chip switched to AP6256, which supports BT 5.0
but only 1T1R (down from 2T2R) for WiFi
Add a new dts file for the new board revision that shows the difference
against the original.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Link: https://lore.kernel.org/r/20210121162321.4538-5-wens@kernel.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
53 lines
908 B
Plaintext
53 lines
908 B
Plaintext
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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/*
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* FriendlyElec NanoPi M4B board device tree source
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*
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* Copyright (c) 2020 Chen-Yu Tsai <wens@csie.org>
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*/
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/dts-v1/;
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#include "rk3399-nanopi-m4.dts"
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/ {
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model = "FriendlyElec NanoPi M4B";
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compatible = "friendlyarm,nanopi-m4b", "rockchip,rk3399";
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adc-keys {
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compatible = "adc-keys";
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io-channels = <&saradc 1>;
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io-channel-names = "buttons";
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keyup-threshold-microvolt = <1500000>;
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poll-interval = <100>;
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recovery {
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label = "Recovery";
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linux,code = <KEY_VENDOR>;
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press-threshold-microvolt = <18000>;
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};
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};
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};
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/* No USB type-C PD power manager */
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/delete-node/ &fusb0;
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&i2c4 {
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status = "disabled";
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};
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&u2phy0_host {
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phy-supply = <&vcc5v0_usb2>;
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};
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&u2phy0_otg {
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phy-supply = <&vbus_typec>;
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};
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&u2phy1_otg {
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phy-supply = <&vcc5v0_usb1>;
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};
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&vbus_typec {
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enable-active-high;
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gpios = <&gpio4 RK_PD2 GPIO_ACTIVE_HIGH>;
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};
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