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54 lines
1.8 KiB
Diff
54 lines
1.8 KiB
Diff
From b13da090f3910634afd1d95cd931a12296426775 Mon Sep 17 00:00:00 2001
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From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
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Date: Mon, 12 Mar 2018 22:42:44 +0100
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Subject: [PATCH] ARM64: dts: meson-gxm: add GXM specific USB host
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configuration
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The USB configuration on GXM is slightly different than on GXL. The dwc3
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controller's internal hub has three USB2 ports (instead of 2 on GXL)
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along with a dedicated USB2 PHY for this port. However, it seems that
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there are no pins on GXM which would allow connecting the third port to
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a physical USB port.
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Passing the third PHY is required though, because without it none of the
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other USB ports is working (this seems to be a limitation of how the
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internal USB hub works, if one PHY is disabled then no USB port works).
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Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
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Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
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---
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arch/arm64/boot/dts/amlogic/meson-gxm.dtsi | 17 +++++++++++++++++
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1 file changed, 17 insertions(+)
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diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxm.dtsi
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index 19a798d..fc53ed7 100644
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--- a/arch/arm64/boot/dts/amlogic/meson-gxm.dtsi
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+++ b/arch/arm64/boot/dts/amlogic/meson-gxm.dtsi
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@@ -117,6 +117,19 @@
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};
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};
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+&apb {
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+ usb2_phy2: phy@78040 {
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+ compatible = "amlogic,meson-gxl-usb2-phy";
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+ #phy-cells = <0>;
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+ reg = <0x0 0x78040 0x0 0x20>;
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+ clocks = <&clkc CLKID_USB>;
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+ clock-names = "phy";
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+ resets = <&reset RESET_USB_OTG>;
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+ reset-names = "phy";
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+ status = "okay";
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+ };
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+};
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+
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&clkc_AO {
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compatible = "amlogic,meson-gxm-aoclkc", "amlogic,meson-gx-aoclkc";
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};
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@@ -137,3 +150,7 @@
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&hdmi_tx {
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compatible = "amlogic,meson-gxm-dw-hdmi", "amlogic,meson-gx-dw-hdmi";
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};
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+
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+&dwc3 {
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+ phys = <&usb3_phy>, <&usb2_phy0>, <&usb2_phy1>, <&usb2_phy2>;
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+};
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