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From e5ccb943712d261b8ebb3e8ac92a82be4b244ce4 Mon Sep 17 00:00:00 2001
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From: Peter Robinson <pbrobinson@gmail.com>
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Date: Sun, 6 Oct 2019 14:44:25 +0100
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Subject: [PATCH] arm64: tegra186: enable USB on Jetson-TX2
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Based on the following patch series:
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https://www.spinics.net/lists/linux-tegra/msg44216.html
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Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
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---
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 arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts | 4 ++--
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 arch/arm64/boot/dts/nvidia/tegra186.dtsi           | 1 +
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 2 files changed, 3 insertions(+), 2 deletions(-)
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diff --git a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
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index bdace01561ba..2e6195764268 100644
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--- a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
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+++ b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
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@@ -115,7 +115,7 @@
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 	};
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 	padctl@3520000 {
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-		status = "disabled";
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+		status = "okay";
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 		avdd-pll-erefeut-supply = <&vdd_1v8_pll>;
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 		avdd-usb-supply = <&vdd_3v3_sys>;
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@@ -193,7 +193,7 @@
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 	};
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 	usb@3530000 {
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-		status = "disabled";
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+		status = "okay";
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 		phys = <&{/padctl@3520000/pads/usb2/lanes/usb2-0}>,
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 		       <&{/padctl@3520000/pads/usb2/lanes/usb2-1}>,
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diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
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index 47cd831fcf44..abdc81f555b9 100644
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--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
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+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
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@@ -525,6 +525,7 @@
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 		      <0x0 0x03538000 0x0 0x1000>;
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 		reg-names = "hcd", "fpci";
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+		iommus = <&smmu TEGRA186_SID_XUSB_HOST>;
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 		interrupts = <gic_spi 163="" irq_type_level_high="">,
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 			     <gic_spi 164="" irq_type_level_high="">,
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 			     <gic_spi 167="" irq_type_level_high="">;
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-- 
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2.21.0
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