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From: Stefan Wahren <wahrenst@gmx.net>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Florian Fainelli <florian.fainelli@broadcom.com>,
	Mathias Nyman <mathias.nyman@intel.com>
Cc: bcm-kernel-feedback-list@broadcom.com,
	Cyril Brulebois <kibi@debian.org>,
	linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Stefan Wahren <wahrenst@gmx.net>
Subject: [PATCH V4 3/3] ARM: dts: bcm2711: Add BCM2711 xHCI support
Date: Tue,  5 Dec 2023 21:05:31 +0100	[thread overview]
Message-ID: <20231205200531.8232-4-wahrenst@gmx.net> (raw)
In-Reply-To: <20231205200531.8232-1-wahrenst@gmx.net>

The BCM2711 SoC also has a mostly generic xHCI. The USB port is
currently only usable on the Compute Module 4 (e.g. via IO board).
Because DWC2 and xHCI share the same PHY, we let the bootloader
enable it on demand.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
---
 arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi |  5 +++++
 arch/arm/boot/dts/broadcom/bcm2711.dtsi     | 14 ++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi b/arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi
index 98817a6675b9..d233a191c139 100644
--- a/arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "bcm2835-rpi.dtsi"

+#include <dt-bindings/power/raspberrypi-power.h>
 #include <dt-bindings/reset/raspberrypi,firmware-reset.h>

 / {
@@ -76,3 +77,7 @@ &v3d {
 &vchiq {
 	interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
 };
+
+&xhci {
+	power-domains = <&power RPI_POWER_DOMAIN_USB>;
+};
diff --git a/arch/arm/boot/dts/broadcom/bcm2711.dtsi b/arch/arm/boot/dts/broadcom/bcm2711.dtsi
index 4a379a14966d..22c7f1561344 100644
--- a/arch/arm/boot/dts/broadcom/bcm2711.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm2711.dtsi
@@ -604,6 +604,20 @@ genet_mdio: mdio@e14 {
 			};
 		};

+		xhci: usb@7e9c0000 {
+			compatible = "brcm,bcm2711-xhci", "brcm,xhci-brcm-v2";
+			reg = <0x0 0x7e9c0000 0x100000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			interrupts = <GIC_SPI 176 IRQ_TYPE_LEVEL_HIGH>;
+			/* DWC2 and this IP block share the same USB PHY,
+			 * enabling both at the same time results in lockups.
+			 * So keep this node disabled and let the bootloader
+			 * decide which interface should be enabled.
+			 */
+			status = "disabled";
+		};
+
 		v3d: gpu@7ec00000 {
 			compatible = "brcm,2711-v3d";
 			reg = <0x0 0x7ec00000 0x4000>,
--
2.34.1


WARNING: multiple messages have this Message-ID (diff)
From: Stefan Wahren <wahrenst@gmx.net>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Florian Fainelli <florian.fainelli@broadcom.com>,
	Mathias Nyman <mathias.nyman@intel.com>
Cc: bcm-kernel-feedback-list@broadcom.com,
	Cyril Brulebois <kibi@debian.org>,
	linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Stefan Wahren <wahrenst@gmx.net>
Subject: [PATCH V4 3/3] ARM: dts: bcm2711: Add BCM2711 xHCI support
Date: Tue,  5 Dec 2023 21:05:31 +0100	[thread overview]
Message-ID: <20231205200531.8232-4-wahrenst@gmx.net> (raw)
In-Reply-To: <20231205200531.8232-1-wahrenst@gmx.net>

The BCM2711 SoC also has a mostly generic xHCI. The USB port is
currently only usable on the Compute Module 4 (e.g. via IO board).
Because DWC2 and xHCI share the same PHY, we let the bootloader
enable it on demand.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
---
 arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi |  5 +++++
 arch/arm/boot/dts/broadcom/bcm2711.dtsi     | 14 ++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi b/arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi
index 98817a6675b9..d233a191c139 100644
--- a/arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "bcm2835-rpi.dtsi"

+#include <dt-bindings/power/raspberrypi-power.h>
 #include <dt-bindings/reset/raspberrypi,firmware-reset.h>

 / {
@@ -76,3 +77,7 @@ &v3d {
 &vchiq {
 	interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
 };
+
+&xhci {
+	power-domains = <&power RPI_POWER_DOMAIN_USB>;
+};
diff --git a/arch/arm/boot/dts/broadcom/bcm2711.dtsi b/arch/arm/boot/dts/broadcom/bcm2711.dtsi
index 4a379a14966d..22c7f1561344 100644
--- a/arch/arm/boot/dts/broadcom/bcm2711.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm2711.dtsi
@@ -604,6 +604,20 @@ genet_mdio: mdio@e14 {
 			};
 		};

+		xhci: usb@7e9c0000 {
+			compatible = "brcm,bcm2711-xhci", "brcm,xhci-brcm-v2";
+			reg = <0x0 0x7e9c0000 0x100000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			interrupts = <GIC_SPI 176 IRQ_TYPE_LEVEL_HIGH>;
+			/* DWC2 and this IP block share the same USB PHY,
+			 * enabling both at the same time results in lockups.
+			 * So keep this node disabled and let the bootloader
+			 * decide which interface should be enabled.
+			 */
+			status = "disabled";
+		};
+
 		v3d: gpu@7ec00000 {
 			compatible = "brcm,2711-v3d";
 			reg = <0x0 0x7ec00000 0x4000>,
--
2.34.1


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  parent reply	other threads:[~2023-12-05 20:06 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-05 20:05 [PATCH V4 0/3] ARM: dts: bcm2711: Add BCM2711 xHCI support Stefan Wahren
2023-12-05 20:05 ` Stefan Wahren
2023-12-05 20:05 ` [PATCH V4 1/3] dt-bindings: usb: xhci: Add support for BCM2711 Stefan Wahren
2023-12-05 20:05   ` Stefan Wahren
2023-12-05 22:51   ` Florian Fainelli
2023-12-05 22:51     ` Florian Fainelli
2023-12-05 20:05 ` [PATCH V4 2/3] usb: xhci: xhci-plat: " Stefan Wahren
2023-12-05 20:05   ` Stefan Wahren
2023-12-05 22:53   ` Florian Fainelli
2023-12-05 22:53     ` Florian Fainelli
2023-12-05 20:05 ` Stefan Wahren [this message]
2023-12-05 20:05   ` [PATCH V4 3/3] ARM: dts: bcm2711: Add BCM2711 xHCI support Stefan Wahren
2023-12-05 22:53   ` Florian Fainelli
2023-12-05 22:53     ` Florian Fainelli
2023-12-12 19:09 ` [PATCH V4 0/3] " Cyril Brulebois
2023-12-12 19:09   ` Cyril Brulebois
2023-12-12 19:16   ` Stefan Wahren
2023-12-12 19:16     ` Stefan Wahren

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