[PATCH v9 -next 09/12] arm64: dts: broadcom: Add board DTS for Rpi5 which includes RP1 node

Andrea della Porta
2025-04-22T18:52:14Z

Add the fully populated DTS for RaspberryPi 5 which includes
the RP1 node definition. The inclusion tree is as follow (the
arrow points to the includer):

rp1-common.dtsi ----> rp1-nexus.dtsi ----> bcm2712-rpi-5-b.dts
^
|
bcm2712-rpi-5-b-ovl-rp1.dts

This is designed to maximize the compatibility with downstream DT
while ensuring that a fully defined DT (one which includes the RP1
node as opposed to load it from overlay at runtime) is present
since early boot stage.

Since the preferred board DT is the fully populated one, name it
bcm2712-rpi-5-b.dts and move the previous one into
bcm2712-rpi-5-b-ovl-rp1.dts.

Signed-off-by: Andrea della Porta <andrea.porta@suse.com>
---
arch/arm64/boot/dts/broadcom/Makefile | 1 +
.../dts/broadcom/bcm2712-rpi-5-b-ovl-rp1.dts | 121 +++++++++++++++++
.../boot/dts/broadcom/bcm2712-rpi-5-b.dts | 124 ++----------------
3 files changed, 132 insertions(+), 114 deletions(-)
create mode 100644 arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b-ovl-rp1.dts

diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile
index 3d0efb93b06d..09563c41ea6b 100644
--- a/arch/arm64/boot/dts/broadcom/Makefile
+++ b/arch/arm64/boot/dts/broadcom/Makefile
@@ -7,6 +7,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-400.dtb \
bcm2711-rpi-4-b.dtb \
bcm2711-rpi-cm4-io.dtb \
bcm2712-rpi-5-b.dtb \
+ bcm2712-rpi-5-b-ovl-rp1.dtb \
bcm2712-d-rpi-5-b.dtb \
bcm2837-rpi-3-a-plus.dtb \
bcm2837-rpi-3-b.dtb \
diff --git a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b-ovl-rp1.dts b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b-ovl-rp1.dts
new file mode 100644
index 000000000000..6ea3c102e0d6
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b-ovl-rp1.dts
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include "bcm2712.dtsi"
+
+/ {
+ compatible = "raspberrypi,5-model-b", "brcm,bcm2712";
+ model = "Raspberry Pi 5";
+
+ aliases {
+ serial10 = &uart10;
+ };
+
+ chosen: chosen {
+ stdout-path = "serial10:115200n8";
+ };
+
+ clk_rp1_xosc: clock-50000000 {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-output-names = "rp1-xosc";
+ clock-frequency = <50000000>;
+ };
+
+ /* Will be filled by the bootloader */
+ memory@0 {
+ device_type = "memory";
+ reg = <0 0 0 0x28000000>;
+ };
+
+ sd_io_1v8_reg: sd-io-1v8-reg {
+ compatible = "regulator-gpio";
+ regulator-name = "vdd-sd-io";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-settling-time-us = <5000>;
+ gpios = <&gio_aon 3 GPIO_ACTIVE_HIGH>;
+ states = <1800000 1>,
+ <3300000 0>;
+ };
+
+ sd_vcc_reg: sd-vcc-reg {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc-sd";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ enable-active-high;
+ gpios = <&gio_aon 4 GPIO_ACTIVE_HIGH>;
+ };
+};
+
+/* The Debug UART, on Rpi5 it's on JST-SH 1.0mm 3-pin connector
+ * labeled "UART", i.e. the interface with the system console.
+ */
+&uart10 {
+ status = "okay";
+};
+
+/* SDIO1 is used to drive the SD card */
+&sdio1 {
+ vqmmc-supply = <&sd_io_1v8_reg>;
+ vmmc-supply = <&sd_vcc_reg>;
+ bus-width = <4>;
+ sd-uhs-sdr50;
+ sd-uhs-ddr50;
+ sd-uhs-sdr104;
+};
+
+&soc {
+ firmware: firmware {
+ compatible = "raspberrypi,bcm2835-firmware", "simple-mfd";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ mboxes = <&mailbox>;
+ dma-ranges;
+
+ firmware_clocks: clocks {
+ compatible = "raspberrypi,firmware-clocks";
+ #clock-cells = <1>;
+ };
+
+ reset: reset {
+ compatible = "raspberrypi,firmware-reset";
+ #reset-cells = <1>;
+ };
+ };
+
+ power: power {
+ compatible = "raspberrypi,bcm2835-power";
+ firmware = <&firmware>;
+ #power-domain-cells = <1>;
+ };
+};
+
+&hvs {
+ clocks = <&firmware_clocks 4>, <&firmware_clocks 16>;
+ clock-names = "core", "disp";
+};
+
+&hdmi0 {
+ clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 0>, <&clk_27MHz>;
+ clock-names = "hdmi", "bvb", "audio", "cec";
+};
+
+&hdmi1 {
+ clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 1>, <&clk_27MHz>;
+ clock-names = "hdmi", "bvb", "audio", "cec";
+};
+
+&pcie1 {
+ status = "okay";
+};
+
+&pcie2 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts
index 6ea3c102e0d6..adad85e68f1b 100644
--- a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts
+++ b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts
@@ -1,121 +1,17 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
-/dts-v1/;
-
-#include <dt-bindings/gpio/gpio.h>
-#include "bcm2712.dtsi"
-
-/ {
- compatible = "raspberrypi,5-model-b", "brcm,bcm2712";
- model = "Raspberry Pi 5";
-
- aliases {
- serial10 = &uart10;
- };
-
- chosen: chosen {
- stdout-path = "serial10:115200n8";
- };
-
- clk_rp1_xosc: clock-50000000 {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-output-names = "rp1-xosc";
- clock-frequency = <50000000>;
- };
-
- /* Will be filled by the bootloader */
- memory@0 {
- device_type = "memory";
- reg = <0 0 0 0x28000000>;
- };
-
- sd_io_1v8_reg: sd-io-1v8-reg {
- compatible = "regulator-gpio";
- regulator-name = "vdd-sd-io";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <3300000>;
- regulator-boot-on;
- regulator-always-on;
- regulator-settling-time-us = <5000>;
- gpios = <&gio_aon 3 GPIO_ACTIVE_HIGH>;
- states = <1800000 1>,
- <3300000 0>;
- };
-
- sd_vcc_reg: sd-vcc-reg {
- compatible = "regulator-fixed";
- regulator-name = "vcc-sd";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- regulator-boot-on;
- enable-active-high;
- gpios = <&gio_aon 4 GPIO_ACTIVE_HIGH>;
- };
-};
-
-/* The Debug UART, on Rpi5 it's on JST-SH 1.0mm 3-pin connector
- * labeled "UART", i.e. the interface with the system console.
+/*
+ * bcm2712-rpi-5-b-ovl-rp1.dts is the overlay-ready DT which will make
+ * the RP1 driver to load the RP1 dtb overlay at runtime, while
+ * bcm2712-rpi-5-b.dts (this file) is the fully defined one (i.e. it
+ * already contains RP1 node, so no overlay is loaded nor needed).
+ * This file is not intended to be modified, nodes should be added
+ * to the included bcm2712-rpi-5-b-ovl-rp1.dts.
*/
-&uart10 {
- status = "okay";
-};
-
-/* SDIO1 is used to drive the SD card */
-&sdio1 {
- vqmmc-supply = <&sd_io_1v8_reg>;
- vmmc-supply = <&sd_vcc_reg>;
- bus-width = <4>;
- sd-uhs-sdr50;
- sd-uhs-ddr50;
- sd-uhs-sdr104;
-};

-&soc {
- firmware: firmware {
- compatible = "raspberrypi,bcm2835-firmware", "simple-mfd";
- #address-cells = <1>;
- #size-cells = <1>;
-
- mboxes = <&mailbox>;
- dma-ranges;
-
- firmware_clocks: clocks {
- compatible = "raspberrypi,firmware-clocks";
- #clock-cells = <1>;
- };
-
- reset: reset {
- compatible = "raspberrypi,firmware-reset";
- #reset-cells = <1>;
- };
- };
-
- power: power {
- compatible = "raspberrypi,bcm2835-power";
- firmware = <&firmware>;
- #power-domain-cells = <1>;
- };
-};
-
-&hvs {
- clocks = <&firmware_clocks 4>, <&firmware_clocks 16>;
- clock-names = "core", "disp";
-};
-
-&hdmi0 {
- clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 0>, <&clk_27MHz>;
- clock-names = "hdmi", "bvb", "audio", "cec";
-};
-
-&hdmi1 {
- clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 1>, <&clk_27MHz>;
- clock-names = "hdmi", "bvb", "audio", "cec";
-};
+/dts-v1/;

-&pcie1 {
- status = "okay";
-};
+#include "bcm2712-rpi-5-b-ovl-rp1.dts"

&pcie2 {
- status = "okay";
+ #include "rp1-nexus.dtsi"
};
--
2.35.3