linux-kernel - [PATCH 04/13] arm64: dts: broadcom: Remove unused and undocumented nodes

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Message-Id: <20260106-dt-dtbs-broadcom-fixes-v1-4-ba45874e4553@kernel.org>
Date: Tue, 06 Jan 2026 20:09:43 -0600
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Florian Fainelli <florian.fainelli@...adcom.com>, 
 Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>, 
 Ray Jui <rjui@...adcom.com>, Scott Branden <sbranden@...adcom.com>
Cc: devicetree@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 04/13] arm64: dts: broadcom: Remove unused and undocumented
 nodes

The "silabs,si3226x" and "brcm,bdc-v0.16" nodes have no documentation
and no driver in the kernel, so remove them. They can be added back with
proper documentation if there is a need for them.

Note that if both USB ports have similar memory maps in relationship to
their USB PHY nodes, it looks like the device controller should have
been at 0x12000, not 0x21000?

Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
 arch/arm64/boot/dts/broadcom/northstar2/ns2-svk.dts   | 16 ----------------
 .../boot/dts/broadcom/stingray/stingray-usb.dtsi      | 19 -------------------
 2 files changed, 35 deletions(-)

diff --git a/arch/arm64/boot/dts/broadcom/northstar2/ns2-svk.dts b/arch/arm64/boot/dts/broadcom/northstar2/ns2-svk.dts
index 5939d342aec7..f06472edd4a1 100644
--- a/arch/arm64/boot/dts/broadcom/northstar2/ns2-svk.dts
+++ b/arch/arm64/boot/dts/broadcom/northstar2/ns2-svk.dts
@@ -106,22 +106,6 @@ &uart3 {
 
 &ssp0 {
 	status = "okay";
-
-	slic@0 {
-		compatible = "silabs,si3226x";
-		reg = <0>;
-		spi-max-frequency = <5000000>;
-		spi-cpha;
-		spi-cpol;
-		pl022,interface = <0>;
-		pl022,slave-tx-disable = <0>;
-		pl022,com-mode = <0>;
-		pl022,rx-level-trig = <1>;
-		pl022,tx-level-trig = <1>;
-		pl022,ctrl-len = <11>;
-		pl022,wait-state = <0>;
-		pl022,duplex = <0>;
-	};
 };
 
 &ssp1 {
diff --git a/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi b/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi
index ac4f7b8f9273..3fa9e57185b2 100644
--- a/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi
+++ b/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi
@@ -31,16 +31,6 @@ xhci0: usb@...0 {
 			status = "disabled";
 		};
 
-		bdc0: usb@...0 {
-			compatible = "brcm,bdc-v0.16";
-			reg = <0x0 0x00002000 0x0 0x1000>;
-			interrupts = <GIC_SPI 259 IRQ_TYPE_LEVEL_HIGH>;
-			phys = <&usbphy0 0>, <&usbphy0 1>;
-			phy-names = "phy0", "phy1";
-			dma-coherent;
-			status = "disabled";
-		};
-
 		usbphy1: usb-phy@...00 {
 			compatible = "brcm,sr-usb-combo-phy";
 			reg = <0x0 0x00010000 0x0 0x100>;
@@ -65,13 +55,4 @@ xhci1: usb@...00 {
 			status = "disabled";
 		};
 
-		bdc1: usb@...00 {
-			compatible = "brcm,bdc-v0.16";
-			reg = <0x0 0x00021000 0x0 0x1000>;
-			interrupts = <GIC_SPI 266 IRQ_TYPE_LEVEL_HIGH>;
-			phys = <&usbphy2>;
-			phy-names = "phy0";
-			dma-coherent;
-			status = "disabled";
-		};
 	};

-- 
2.51.0