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-rw-r--r--arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts41
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts
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index 000000000..bba98f982
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 BayLibre, SAS
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ * Copyright (c) 2019 Christian Hewitt <christianshewitt@gmail.com>
+ */
+
+/dts-v1/;
+
+#include "meson-g12b-s922x.dtsi"
+#include "meson-khadas-vim3.dtsi"
+#include "meson-g12b-khadas-vim3.dtsi"
+
+/ {
+ compatible = "khadas,vim3", "amlogic,s922x", "amlogic,g12b";
+};
+
+/*
+ * The VIM3 on-board MCU can mux the PCIe/USB3.0 shared differential
+ * lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between
+ * an USB3.0 Type A connector and a M.2 Key M slot.
+ * The PHY driving these differential lines is shared between
+ * the USB3.0 controller and the PCIe Controller, thus only
+ * a single controller can use it.
+ * If the MCU is configured to mux the PCIe/USB3.0 differential lines
+ * to the M.2 Key M slot, uncomment the following block to disable
+ * USB3.0 from the USB Complex and enable the PCIe controller.
+ * The End User is not expected to uncomment the following except for
+ * testing purposes, but instead rely on the firmware/bootloader to
+ * update these nodes accordingly if PCIe mode is selected by the MCU.
+ */
+/*
+&pcie {
+ status = "okay";
+};
+
+&usb {
+ phys = <&usb2_phy0>, <&usb2_phy1>;
+ phy-names = "usb2-phy0", "usb2-phy1";
+};
+ */