[PATCH v2 5/5] arm64: dts: broadcom: bcm2712: Add GPU IOMMU and IOMMU cache nodes
From: Daniel Drake
Date: Mon Jul 27 2026 - 17:43:20 EST
Define the IOMMU and IOMMUC nodes for the Broadcom BCM2712 SoC found in
the Raspberry Pi 5. Enable use of the IOMMU for the graphics/display
block.
Signed-off-by: Daniel Drake <dan@xxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/broadcom/bcm2712.dtsi | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
index 761c59d90ffc..2e0dcf8ccd4c 100644
--- a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
+++ b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
@@ -626,6 +626,19 @@ pcie2: pcie@1000120000 {
status = "disabled";
};
+ iommu4: iommu@1000005200 {
+ /* IOMMU for VC4 (HVS & MPL/TXP), Unicam, PISP-FE, MiniBVN */
+ compatible = "brcm,bcm2712-iommu";
+ reg = <0x10 0x5200 0x0 0x80>;
+ #iommu-cells = <0>;
+ brcm,iommu-cache = <&iommuc>;
+ };
+
+ iommuc: iommuc@1000005b00 {
+ compatible = "brcm,bcm2712-iommuc";
+ reg = <0x10 0x5b00 0x0 0x80>;
+ };
+
mip0: msi-controller@1000130000 {
compatible = "brcm,bcm2712-mip";
reg = <0x10 0x00130000 0x00 0xc0>,
@@ -667,6 +680,7 @@ v3d: gpu@1002000000 {
vc4: gpu {
compatible = "brcm,bcm2712-vc6";
+ iommus = <&iommu4>;
};
timer {
--
2.55.0