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authorFlorian Fainelli <f.fainelli@gmail.com>2021-06-09 22:04:28 +0300
committerFlorian Fainelli <f.fainelli@gmail.com>2021-06-09 22:04:28 +0300
commit3a3907c4cb66e08dba11766b806b3a974385ed30 (patch)
tree08228071fb9d7973faa8f0ce75784a84addede0d
parentd5aede3e6dd1b8ca574600a1ecafe1e580c53f2f (diff)
parent21c6bf8304f0141af6460cfe404dbbdeb96bdd62 (diff)
downloadlinux-3a3907c4cb66e08dba11766b806b3a974385ed30.tar.xz
Merge tag 'tags/bcm2835-dt-next-2021-06-08-v2' into devicetree/next
- Fixup MMC node names - Fixup led node names - Introduce new devicetree file for Raspberry Pi 400 - Introduce devicetree bindings for Raspberry Pi 400 - Fix issue with dwc2's FIFO's size - Add VEC compatible for bcm2711 Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
-rw-r--r--Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml1
-rw-r--r--arch/arm/boot/dts/Makefile1
-rw-r--r--arch/arm/boot/dts/bcm2711-rpi-4-b.dts85
-rw-r--r--arch/arm/boot/dts/bcm2711-rpi-400.dts45
-rw-r--r--arch/arm/boot/dts/bcm2711-rpi.dtsi74
-rw-r--r--arch/arm/boot/dts/bcm2711.dtsi3
-rw-r--r--arch/arm/boot/dts/bcm2835-rpi-a-plus.dts4
-rw-r--r--arch/arm/boot/dts/bcm2835-rpi-a.dts2
-rw-r--r--arch/arm/boot/dts/bcm2835-rpi-b-plus.dts4
-rw-r--r--arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts2
-rw-r--r--arch/arm/boot/dts/bcm2835-rpi-b.dts2
-rw-r--r--arch/arm/boot/dts/bcm2835-rpi-cm1.dtsi2
-rw-r--r--arch/arm/boot/dts/bcm2835-rpi-zero-w.dts2
-rw-r--r--arch/arm/boot/dts/bcm2835-rpi-zero.dts2
-rw-r--r--arch/arm/boot/dts/bcm2835-rpi.dtsi2
-rw-r--r--arch/arm/boot/dts/bcm2836-rpi-2-b.dts4
-rw-r--r--arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts4
-rw-r--r--arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts4
-rw-r--r--arch/arm/boot/dts/bcm2837-rpi-3-b.dts2
-rw-r--r--arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi2
-rw-r--r--arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi2
-rw-r--r--arch/arm/boot/dts/bcm283x-rpi-usb-peripheral.dtsi2
-rw-r--r--arch/arm/boot/dts/bcm283x.dtsi2
-rw-r--r--arch/arm64/boot/dts/broadcom/Makefile3
-rw-r--r--arch/arm64/boot/dts/broadcom/bcm2711-rpi-400.dts2
25 files changed, 161 insertions, 97 deletions
diff --git a/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml b/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml
index 812ae8cc5959..230b80d9d6cf 100644
--- a/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml
@@ -18,6 +18,7 @@ properties:
- description: BCM2711 based Boards
items:
- enum:
+ - raspberrypi,400
- raspberrypi,4-model-b
- const: brcm,bcm2711
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index f8f09c5066e7..ec00dba84f36 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -88,6 +88,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
bcm2837-rpi-3-b.dtb \
bcm2837-rpi-3-b-plus.dtb \
bcm2837-rpi-cm3-io3.dtb \
+ bcm2711-rpi-400.dtb \
bcm2711-rpi-4-b.dtb \
bcm2835-rpi-zero.dtb \
bcm2835-rpi-zero-w.dtb
diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
index 3b4ab947492a..f24bdd0870a5 100644
--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
@@ -1,11 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
/dts-v1/;
#include "bcm2711.dtsi"
-#include "bcm2835-rpi.dtsi"
+#include "bcm2711-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";
@@ -15,25 +13,12 @@
stdout-path = "serial1:115200n8";
};
- /* Will be filled by the bootloader */
- memory@0 {
- device_type = "memory";
- reg = <0 0 0>;
- };
-
- aliases {
- emmc2bus = &emmc2bus;
- ethernet0 = &genet;
- pcie0 = &pcie0;
- blconfig = &blconfig;
- };
-
leds {
- act {
+ led-act {
gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
};
- pwr {
+ led-pwr {
label = "PWR";
gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
default-state = "keep";
@@ -79,31 +64,15 @@
status = "okay";
};
-&firmware {
- firmware_clocks: clocks {
- compatible = "raspberrypi,firmware-clocks";
- #clock-cells = <1>;
- };
-
- expgpio: gpio {
- compatible = "raspberrypi,firmware-gpio";
- gpio-controller;
- #gpio-cells = <2>;
- gpio-line-names = "BT_ON",
- "WL_ON",
- "PWR_LED_OFF",
- "GLOBAL_RESET",
- "VDD_SD_IO_SEL",
- "CAM_GPIO",
- "SD_PWR_ON",
- "";
- status = "okay";
- };
-
- reset: reset {
- compatible = "raspberrypi,firmware-reset";
- #reset-cells = <1>;
- };
+&expgpio {
+ gpio-line-names = "BT_ON",
+ "WL_ON",
+ "PWR_LED_OFF",
+ "GLOBAL_RESET",
+ "VDD_SD_IO_SEL",
+ "CAM_GPIO",
+ "SD_PWR_ON",
+ "";
};
&gpio {
@@ -180,23 +149,13 @@
};
&hdmi0 {
- clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 0>, <&clk_27MHz>;
- clock-names = "hdmi", "bvb", "audio", "cec";
- wifi-2.4ghz-coexistence;
status = "okay";
};
&hdmi1 {
- clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 1>, <&clk_27MHz>;
- clock-names = "hdmi", "bvb", "audio", "cec";
- wifi-2.4ghz-coexistence;
status = "okay";
};
-&hvs {
- clocks = <&firmware_clocks 4>;
-};
-
&pixelvalve0 {
status = "okay";
};
@@ -219,22 +178,6 @@
status = "okay";
};
-&rmem {
- /*
- * RPi4's co-processor will copy the board's bootloader configuration
- * into memory for the OS to consume. It'll also update this node with
- * its placement information.
- */
- blconfig: nvram@0 {
- compatible = "raspberrypi,bootloader-config", "nvmem-rmem";
- #address-cells = <1>;
- #size-cells = <1>;
- reg = <0x0 0x0 0x0>;
- no-map;
- status = "disabled";
- };
-};
-
/* SDHCI is used to control the SDIO for wireless */
&sdhci {
#address-cells = <1>;
@@ -309,10 +252,6 @@
status = "okay";
};
-&vchiq {
- interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
-};
-
&vc4 {
status = "okay";
};
diff --git a/arch/arm/boot/dts/bcm2711-rpi-400.dts b/arch/arm/boot/dts/bcm2711-rpi-400.dts
new file mode 100644
index 000000000000..f4d2fc20397c
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2711-rpi-400.dts
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+#include "bcm2711-rpi-4-b.dts"
+
+/ {
+ compatible = "raspberrypi,400", "brcm,bcm2711";
+ model = "Raspberry Pi 400";
+
+ chosen {
+ /* 8250 auxiliary UART instead of pl011 */
+ stdout-path = "serial1:115200n8";
+ };
+
+ leds {
+ /delete-node/ led-act;
+
+ led-pwr {
+ gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
+ };
+ };
+
+ gpio-poweroff {
+ compatible = "gpio-poweroff";
+ gpios = <&expgpio 5 GPIO_ACTIVE_HIGH>;
+ };
+};
+
+&expgpio {
+ gpio-line-names = "BT_ON",
+ "WL_ON",
+ "",
+ "GLOBAL_RESET",
+ "VDD_SD_IO_SEL",
+ "CAM_GPIO",
+ "SD_PWR_ON",
+ "SD_OC_N";
+};
+
+&genet_mdio {
+ clock-frequency = <1950000>;
+};
+
+&pm {
+ /delete-property/ system-power-controller;
+};
diff --git a/arch/arm/boot/dts/bcm2711-rpi.dtsi b/arch/arm/boot/dts/bcm2711-rpi.dtsi
new file mode 100644
index 000000000000..ca266c5d9f9b
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2711-rpi.dtsi
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "bcm2835-rpi.dtsi"
+
+#include <dt-bindings/reset/raspberrypi,firmware-reset.h>
+
+/ {
+ /* Will be filled by the bootloader */
+ memory@0 {
+ device_type = "memory";
+ reg = <0 0 0>;
+ };
+
+ aliases {
+ emmc2bus = &emmc2bus;
+ ethernet0 = &genet;
+ pcie0 = &pcie0;
+ blconfig = &blconfig;
+ };
+};
+
+&firmware {
+ firmware_clocks: clocks {
+ compatible = "raspberrypi,firmware-clocks";
+ #clock-cells = <1>;
+ };
+
+ expgpio: gpio {
+ compatible = "raspberrypi,firmware-gpio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ status = "okay";
+ };
+
+ reset: reset {
+ compatible = "raspberrypi,firmware-reset";
+ #reset-cells = <1>;
+ };
+};
+
+&hdmi0 {
+ clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 0>, <&clk_27MHz>;
+ clock-names = "hdmi", "bvb", "audio", "cec";
+ wifi-2.4ghz-coexistence;
+};
+
+&hdmi1 {
+ clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 1>, <&clk_27MHz>;
+ clock-names = "hdmi", "bvb", "audio", "cec";
+ wifi-2.4ghz-coexistence;
+};
+
+&hvs {
+ clocks = <&firmware_clocks 4>;
+};
+
+&rmem {
+ /*
+ * RPi4's co-processor will copy the board's bootloader configuration
+ * into memory for the OS to consume. It'll also update this node with
+ * its placement information.
+ */
+ blconfig: nvram@0 {
+ compatible = "raspberrypi,bootloader-config", "nvmem-rmem";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x0 0x0 0x0>;
+ no-map;
+ status = "disabled";
+ };
+};
+
+&vchiq {
+ interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+};
diff --git a/arch/arm/boot/dts/bcm2711.dtsi b/arch/arm/boot/dts/bcm2711.dtsi
index 720beec54d61..b8a4096192aa 100644
--- a/arch/arm/boot/dts/bcm2711.dtsi
+++ b/arch/arm/boot/dts/bcm2711.dtsi
@@ -413,7 +413,7 @@
ranges = <0x0 0x7e000000 0x0 0xfe000000 0x01800000>;
dma-ranges = <0x0 0xc0000000 0x0 0x00000000 0x40000000>;
- emmc2: emmc2@7e340000 {
+ emmc2: mmc@7e340000 {
compatible = "brcm,bcm2711-emmc2";
reg = <0x0 0x7e340000 0x100>;
interrupts = <GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>;
@@ -1087,5 +1087,6 @@
};
&vec {
+ compatible = "brcm,bcm2711-vec";
interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
index 6c8ce39833bf..40b9405f1a8e 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
@@ -14,11 +14,11 @@
};
leds {
- act {
+ led-act {
gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
};
- pwr {
+ led-pwr {
label = "PWR";
gpios = <&gpio 35 GPIO_ACTIVE_HIGH>;
default-state = "keep";
diff --git a/arch/arm/boot/dts/bcm2835-rpi-a.dts b/arch/arm/boot/dts/bcm2835-rpi-a.dts
index 17fdd48346ff..11edb581dbaf 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-a.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-a.dts
@@ -14,7 +14,7 @@
};
leds {
- act {
+ led-act {
gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
};
};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
index b0355c229cdc..1b435c64bd9c 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
@@ -15,11 +15,11 @@
};
leds {
- act {
+ led-act {
gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
};
- pwr {
+ led-pwr {
label = "PWR";
gpios = <&gpio 35 GPIO_ACTIVE_HIGH>;
default-state = "keep";
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
index 33b3b5c02521..a23c25c00eea 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
@@ -15,7 +15,7 @@
};
leds {
- act {
+ led-act {
gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
};
};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b.dts b/arch/arm/boot/dts/bcm2835-rpi-b.dts
index 2b69957e0113..1b63d6b19750 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-b.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-b.dts
@@ -15,7 +15,7 @@
};
leds {
- act {
+ led-act {
gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
};
};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-cm1.dtsi b/arch/arm/boot/dts/bcm2835-rpi-cm1.dtsi
index 58059c2ce129..e4e6b6abbfc1 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-cm1.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi-cm1.dtsi
@@ -5,7 +5,7 @@
/ {
leds {
- act {
+ led-act {
gpios = <&gpio 47 GPIO_ACTIVE_LOW>;
};
};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts b/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
index f65448c01e31..33b2b77aa47d 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
@@ -23,7 +23,7 @@
};
leds {
- act {
+ led-act {
gpios = <&gpio 47 GPIO_ACTIVE_LOW>;
};
};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero.dts b/arch/arm/boot/dts/bcm2835-rpi-zero.dts
index 6dd93c6f4966..6f9b3a908f28 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-zero.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-zero.dts
@@ -18,7 +18,7 @@
};
leds {
- act {
+ led-act {
gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
};
};
diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index d94357b21f7e..87ddcad76083 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -4,7 +4,7 @@
leds {
compatible = "gpio-leds";
- act {
+ led-act {
label = "ACT";
default-state = "keep";
linux,default-trigger = "heartbeat";
diff --git a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
index 0455a680394a..d8af8eeac7b6 100644
--- a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
+++ b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
@@ -15,11 +15,11 @@
};
leds {
- act {
+ led-act {
gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
};
- pwr {
+ led-pwr {
label = "PWR";
gpios = <&gpio 35 GPIO_ACTIVE_HIGH>;
default-state = "keep";
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts b/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts
index 28be0332c1c8..77099a7871b0 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts
@@ -19,11 +19,11 @@
};
leds {
- act {
+ led-act {
gpios = <&gpio 29 GPIO_ACTIVE_HIGH>;
};
- pwr {
+ led-pwr {
label = "PWR";
gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
default-state = "keep";
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
index 37343148643d..61010266ca9a 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
@@ -20,11 +20,11 @@
};
leds {
- act {
+ led-act {
gpios = <&gpio 29 GPIO_ACTIVE_HIGH>;
};
- pwr {
+ led-pwr {
label = "PWR";
gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
default-state = "keep";
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
index 054ecaa355c9..dd4a48604097 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
@@ -20,7 +20,7 @@
};
leds {
- act {
+ led-act {
gpios = <&expgpio 2 GPIO_ACTIVE_HIGH>;
};
};
diff --git a/arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi b/arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi
index 925cb37c22f0..828a20561b96 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi
+++ b/arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi
@@ -14,7 +14,7 @@
* Since there is no upstream GPIO driver yet,
* remove the incomplete node.
*/
- /delete-node/ act;
+ /delete-node/ led-act;
};
reg_3v3: fixed-regulator {
diff --git a/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi b/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi
index 20322de2f8bf..e2fd9610e125 100644
--- a/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi
+++ b/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
&usb {
dr_mode = "otg";
- g-rx-fifo-size = <558>;
+ g-rx-fifo-size = <256>;
g-np-tx-fifo-size = <32>;
/*
* According to dwc2 the sum of all device EP
diff --git a/arch/arm/boot/dts/bcm283x-rpi-usb-peripheral.dtsi b/arch/arm/boot/dts/bcm283x-rpi-usb-peripheral.dtsi
index 1409d1b559c1..0ff0e9e25327 100644
--- a/arch/arm/boot/dts/bcm283x-rpi-usb-peripheral.dtsi
+++ b/arch/arm/boot/dts/bcm283x-rpi-usb-peripheral.dtsi
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
&usb {
dr_mode = "peripheral";
- g-rx-fifo-size = <558>;
+ g-rx-fifo-size = <256>;
g-np-tx-fifo-size = <32>;
g-tx-fifo-size = <256 256 512 512 512 768 768>;
};
diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
index b83a864e2e8b..0f3be55201a5 100644
--- a/arch/arm/boot/dts/bcm283x.dtsi
+++ b/arch/arm/boot/dts/bcm283x.dtsi
@@ -420,7 +420,7 @@
status = "disabled";
};
- sdhci: sdhci@7e300000 {
+ sdhci: mmc@7e300000 {
compatible = "brcm,bcm2835-sdhci";
reg = <0x7e300000 0x100>;
interrupts = <2 30>;
diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile
index 998e240aa698..11eae3e3a944 100644
--- a/arch/arm64/boot/dts/broadcom/Makefile
+++ b/arch/arm64/boot/dts/broadcom/Makefile
@@ -1,5 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
-dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-4-b.dtb \
+dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-400.dtb \
+ bcm2711-rpi-4-b.dtb \
bcm2837-rpi-3-a-plus.dtb \
bcm2837-rpi-3-b.dtb \
bcm2837-rpi-3-b-plus.dtb \
diff --git a/arch/arm64/boot/dts/broadcom/bcm2711-rpi-400.dts b/arch/arm64/boot/dts/broadcom/bcm2711-rpi-400.dts
new file mode 100644
index 000000000000..b9000f58beb5
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/bcm2711-rpi-400.dts
@@ -0,0 +1,2 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "arm/bcm2711-rpi-400.dts"