diff mbox series

[V2,6/7] ARM: dts: Add Raspberry Pi 400 support

Message ID 1622981777-5023-7-git-send-email-stefan.wahren@i2se.com (mailing list archive)
State Not Applicable, archived
Headers show
Series ARM: dts: Add Raspberry Pi 400 support | expand

Commit Message

Stefan Wahren June 6, 2021, 12:16 p.m. UTC 
The Raspberry Pi 400 is like a Pi 4 B designed into a keyboard. But there
are some minor differences:

- higher CPU clock rate (1.8 GHz)
- different Wifi chip (BCM43456)
- power off is now handled via GPIO
- no ACT LED

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
 arch/arm/boot/dts/Makefile            |  1 +
 arch/arm/boot/dts/bcm2711-rpi-400.dts | 45 +++++++++++++++++++++++++++++++++++
 2 files changed, 46 insertions(+)
 create mode 100644 arch/arm/boot/dts/bcm2711-rpi-400.dts

Comments

Nicolas Saenz Julienne June 8, 2021, 10:08 a.m. UTC | #1 
On Sun, 2021-06-06 at 14:16 +0200, Stefan Wahren wrote:
> The Raspberry Pi 400 is like a Pi 4 B designed into a keyboard. But there
> are some minor differences:
> 
> - higher CPU clock rate (1.8 GHz)
> - different Wifi chip (BCM43456)
> - power off is now handled via GPIO
> - no ACT LED
> 
> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>

Applied for next.

Regards,
Nicolas
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index f8f09c5..ec00dba 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-400.dts b/arch/arm/boot/dts/bcm2711-rpi-400.dts
new file mode 100644
index 0000000..f4d2fc2
--- /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;
+};