Messages in this thread Patch in this message | | | From | Nicolas Saenz Julienne <> | Subject | [PATCH v3 4/9] ARM: dts: bcm2711: Add reset controller to xHCI node | Date | Fri, 12 Jun 2020 19:13:28 +0200 |
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The chip is hardwired to the board's PCIe bus and needs to be properly setup trough a firmware routine after a PCI fundamental reset. Pass the reset controller phandle that takes care of triggering the initialization to the relevant PCI device.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
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Changes since v2: - Use dt-bindings to access IDs
Changes since v1: - Update to match new binding
arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts index 0cef95058fb0..e20979013414 100644 --- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts +++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts @@ -4,6 +4,8 @@ #include "bcm2835-rpi.dtsi" #include "bcm283x-rpi-usb-peripheral.dtsi" +#include <dt-bindings/reset/raspberrypi,firmware-reset.h> + / { compatible = "raspberrypi,4-model-b", "brcm,bcm2711"; model = "Raspberry Pi 4 Model B"; @@ -207,6 +209,13 @@ phy1: ethernet-phy@1 { }; }; +&pcie0 { + usb@1,0 { + reg = <0 0 0 0 0>; + resets = <&reset RASPBERRYPI_FIRMWARE_RESET_ID_USB>; + }; +}; + /* uart0 communicates with the BT module */ &uart0 { pinctrl-names = "default"; -- 2.26.2
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