summaryrefslogtreecommitdiff
path: root/arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts
diff options
context:
space:
mode:
authorArnaldo Carvalho de Melo <acme@redhat.com>2019-12-11 15:58:16 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-12-11 15:58:16 +0300
commit761bfc33dd7504de951aa7b9db27a3cc5df1fde6 (patch)
tree93f4ac22fb206fe214998a599f4d2ea0214be70a /arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts
parent0f60a0bcc1b96d531fa623ab520f863f1292c75b (diff)
parent6794862a16ef41f753abd75c03a152836e4c8028 (diff)
downloadlinux-761bfc33dd7504de951aa7b9db27a3cc5df1fde6.tar.xz
Merge remote-tracking branch 'torvalds/master' into perf/urgent
To pick up BPF fixes to allow a clean 'make -C tools/perf build-test': 7c3977d1e804 libbpf: Fix sym->st_value print on 32-bit arches 1fd450f99272 libbpf: Fix up generation of bpf_helper_defs.h Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts')
-rw-r--r--arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts25
1 files changed, 25 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
index b73deb282120..bba98f982ad6 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts
@@ -14,3 +14,28 @@
/ {
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";
+};
+ */