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78152db78f
* Backport USB PCIe/XHCI patches to U-Boot 2020.07 Backport relevant patches required to make PCIe/USB XHCI work. * Backport/integrate PCIe device tree changes from upstream Linux U-Boot uses the device tree provided by upstream Linux. Make sure the device tree has the relevant chanages to make VL805 USB controller reset work. * Document RPi 4 USB mass storage support (#746)
59 lines
1.7 KiB
Diff
59 lines
1.7 KiB
Diff
From 08558575c0f3d1437994590ad418d6c2cf18d96b Mon Sep 17 00:00:00 2001
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Message-Id: <08558575c0f3d1437994590ad418d6c2cf18d96b.1595152741.git.stefan@agner.ch>
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In-Reply-To: <a9f92163e6c07e5c6f57f00f4931098e0e1ee826.1595152741.git.stefan@agner.ch>
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References: <a9f92163e6c07e5c6f57f00f4931098e0e1ee826.1595152741.git.stefan@agner.ch>
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From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
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Date: Mon, 29 Jun 2020 18:18:40 +0200
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Subject: [PATCH 3/4] ARM: dts: bcm2711: Add reset controller to xHCI node
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The chip is hardwired to the board's PCIe bus and needs to be properly
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setup trough a firmware routine after a PCI fundamental reset. Pass the
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reset controller phandle that takes care of triggering the
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initialization to the relevant PCI device.
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Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
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[backport for RPi 4.19 kernel]
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Signed-off-by: Stefan Agner <stefan@agner.ch>
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---
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arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 17 +++++++++++++++++
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1 file changed, 17 insertions(+)
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diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
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index ec0b3bb64de8..2c6aa1933600 100644
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--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
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+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
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@@ -4,6 +4,8 @@
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#include "bcm2711-rpi.dtsi"
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#include "bcm283x-rpi-csi1-2lane.dtsi"
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+#include <dt-bindings/reset/raspberrypi,firmware-reset.h>
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+
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/ {
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compatible = "raspberrypi,4-model-b", "brcm,bcm2711";
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model = "Raspberry Pi 4 Model B";
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@@ -87,6 +89,21 @@
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};
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};
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+&pcie_0 {
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+ pci@1,0 {
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+ #address-cells = <3>;
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+ #size-cells = <2>;
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+ ranges;
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+
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+ reg = <0 0 0 0 0>;
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+
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+ usb@1,0 {
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+ reg = <0x10000 0 0 0 0>;
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+ resets = <&reset RASPBERRYPI_FIRMWARE_RESET_ID_USB>;
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+ };
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+ };
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+};
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+
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&uart0 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart0_pins &bt_pins>;
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--
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2.27.0
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