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ARM: dts: mmp3: add Dell Wyse 3020 machine

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This is a Dell Wyse thin client, variously referred to as "Ariel",
"3020" or "Tx0D" where "x" stands for the software it was shipped with.
I somewhat arbitrarily chose "ariel".

There are bits missing, because the drivers are not in and bindings are not
settled yet:

* Things missing from mmp3.dtsi:
  HSIC controller and its PHY (only the internal Ethernet is connected
  here, the hub with external USB2 ports is connected to the U2O controller
  that works well), Vivante GC2000 GPU

* &twsi1/regulator@19
  Marvell 88pm867 power regulator

* &twsi3/vga-dvi-encoder@76
  Chrontel CH7033B-BF VGA & DVI encoder

* &twsi3/sound-codec@30
  Sound chip, probably a Marvell 88ce156

* &twsi4/embedded-controller@58
  ENE KB3930QF Embedded Controller, also seems to be connected to &ssp4.
  Might not need a driver -- about the only useful thing it can do is to
  reboot the machine when tickled via some GPIO lines.

Also there seems to be something at &twsi1 address 0x50.

Link: https://lore.kernel.org/r/20191022152837.3553524-1-lkundrak@v3.sk
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Lubomir Rintel 2019-10-22 17:28:37 +02:00 committed by Olof Johansson
parent a9d21d1517
commit 044393a7b3
2 changed files with 92 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
arch/arm/boot/dts/Makefile
View file

@ -337,7 +337,8 @@ dtb-$(CONFIG_ARCH_MMP) += \
pxa168-aspenite.dtb \
pxa910-dkb.dtb \
mmp2-brownstone.dtb \
mmp2-olpc-xo-1-75.dtb
mmp2-olpc-xo-1-75.dtb \
mmp3-dell-ariel.dtb
dtb-$(CONFIG_ARCH_MPS2) += \
mps2-an385.dtb \
mps2-an399.dtb

90
arch/arm/boot/dts/mmp3-dell-ariel.dts Normal file
View file

@ -0,0 +1,90 @@
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/*
* Dell Wyse 3020 a.k.a. "Ariel" a.k.a. Tx0D (T00D, T10D)
*
* Copyright (C) 2019 Lubomir Rintel <lkundrak@v3.sk>
*/
/dts-v1/;
#include "mmp3.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
/ {
model = "Dell Ariel";
compatible = "dell,wyse-ariel", "marvell,mmp3";
chosen {
#address-cells = <0x1>;
#size-cells = <0x1>;
ranges;
bootargs = "earlyprintk=ttyS2,115200 console=ttyS2,115200";
};
memory {
linux,usable-memory = <0x0 0x7f600000>;
available = <0x7f700000 0x7ff00000 0x00000000 0x7f600000>;
reg = <0x0 0x80000000>;
device_type = "memory";
};
};
&uart3 {
status = "okay";
};
&rtc {
status = "okay";
};
&usb_otg0 {
status = "okay";
};
&usb_otg_phy0 {
status = "okay";
};
&mmc3 {
status = "okay";
max-frequency = <50000000>;
status = "okay";
bus-width = <8>;
non-removable;
cap-mmc-highspeed;
};
&twsi1 {
status = "okay";
rtc@68 {
compatible = "dallas,ds1338";
reg = <0x68>;
status = "okay";
};
};
&twsi3 {
status = "okay";
};
&twsi4 {
status = "okay";
};
&ssp3 {
status = "okay";
cs-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
firmware-flash@0 {
compatible = "st,m25p80", "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <40000000>;
m25p,fast-read;
};
};
&ssp4 {
cs-gpios = <&gpio 56 GPIO_ACTIVE_HIGH>;
status = "okay";
};