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From: Stefan Wahren <stefan.wahren@i2se.com>
To: Rob Herring <robh+dt@kernel.org>,
	Nicolas Saenz Julienne <nsaenz@kernel.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>,
	Ray Jui <rjui@broadcom.com>,
	Scott Branden <sbranden@broadcom.com>,
	bcm-kernel-feedback-list@broadcom.com,
	Arnd Bergmann <arnd@arndb.de>, Olof Johansson <olof@lixom.net>,
	soc@kernel.org, Wim Van Sebroeck <wim@linux-watchdog.org>,
	Guenter Roeck <linux@roeck-us.net>,
	devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-watchdog@vger.kernel.org,
	Stefan Wahren <stefan.wahren@i2se.com>
Subject: [PATCH V2 6/7] ARM: dts: Add Raspberry Pi 400 support
Date: Sun,  6 Jun 2021 14:16:16 +0200	[thread overview]
Message-ID: <1622981777-5023-7-git-send-email-stefan.wahren@i2se.com> (raw)
In-Reply-To: <1622981777-5023-1-git-send-email-stefan.wahren@i2se.com>

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

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;
+};
-- 
2.7.4


  parent reply	other threads:[~2021-06-06 12:17 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-06 12:16 [PATCH V2 0/7] " Stefan Wahren
2021-06-06 12:16 ` [PATCH V2 1/7] ARM: dts: bcm283x: Fix up MMC node names Stefan Wahren
2021-06-06 12:16 ` [PATCH V2 2/7] watchdog: bcm2835_wdt: consider system-power-controller property Stefan Wahren
2021-06-15 21:17   ` Stefan Wahren
2021-06-22  7:12   ` Stefan Wahren
2021-06-28 16:31     ` Guenter Roeck
2021-06-06 12:16 ` [PATCH V2 3/7] ARM: dts: Move BCM2711 RPi specific into separate dtsi Stefan Wahren
2021-06-06 12:16 ` [PATCH V2 4/7] dt-bindings: arm: bcm2835: Add Raspberry Pi 400 to DT schema Stefan Wahren
2021-06-06 12:16 ` [PATCH V2 5/7] ARM: dts: bcm283x: Fix up GPIO LED node names Stefan Wahren
2021-06-06 12:16 ` Stefan Wahren [this message]
2021-06-06 12:16 ` [PATCH V2 7/7] arm64: dts: broadcom: Add reference to RPi 400 Stefan Wahren

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