[PATCH 13/14] ARM: dts: Add devicetree for Supermicro X9SCi-LN4F based on WPCM450

From: "Jonathan Neuschäfer" <j.neuschaefer@gmx.net>
To: openbmc@lists.ozlabs.org
Cc: devicetree@vger.kernel.org, "Tomer Maimon" <tmaimon77@gmail.com>,
	"Arnd Bergmann" <arnd@arndb.de>,
	"Avi Fishman" <avifishman70@gmail.com>,
	"Patrick Venture" <venture@google.com>,
	linux-kernel@vger.kernel.org,
	"Jonathan Neuschäfer" <j.neuschaefer@gmx.net>,
	soc@kernel.org, "Rob Herring" <robh+dt@kernel.org>,
	"Olof Johansson" <olof@lixom.net>,
	"Tali Perry" <tali.perry1@gmail.com>,
	linux-arm-kernel@lists.infradead.org,
	"Benjamin Fair" <benjaminfair@google.com>
Subject: [PATCH 13/14] ARM: dts: Add devicetree for Supermicro X9SCi-LN4F based on WPCM450
Date: Sat, 20 Mar 2021 19:16:09 +0100	[thread overview]
Message-ID: <20210320181610.680870-14-j.neuschaefer@gmx.net> (raw)
In-Reply-To: <20210320181610.680870-1-j.neuschaefer@gmx.net>

The Supermicro X9SCi-LN4F is a server mainboard featuring the WPCM450
BMC. This patch adds a minimal devicetree for Linux running on the BMC.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
---
 arch/arm/boot/dts/Makefile                    |  2 +
 .../nuvoton-wpcm450-supermicro-x9sci-ln4f.dts | 40 +++++++++++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 8e5d4ab4e75e6..cab5b3c906f83 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1305,6 +1305,8 @@ dtb-$(CONFIG_ARCH_VT8500) += \
 	wm8650-mid.dtb \
 	wm8750-apc8750.dtb \
 	wm8850-w70v2.dtb
+dtb-$(CONFIG_ARCH_WPCM450) += \
+	nuvoton-wpcm450-supermicro-x9sci-ln4f.dtb
 dtb-$(CONFIG_ARCH_ZYNQ) += \
 	zynq-cc108.dtb \
 	zynq-ebaz4205.dtb \
diff --git a/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts b/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts
new file mode 100644
index 0000000000000..83f27fbf4e939
--- /dev/null
+++ b/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+// Copyright 2021 Jonathan Neuschäfer
+
+/dts-v1/;
+
+/* The last 16 MiB are dedicated to the GPU */
+/memreserve/ 0x07000000 0x01000000;
+
+#include "nuvoton-wpcm450.dtsi"
+
+/ {
+	model = "Supermicro X9SCi-LN4F BMC";
+	compatible = "supermicro,x9sci-ln4f-bmc", "nuvoton,wpcm450";
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0 0x08000000>; /* 128 MiB */
+	};
+};
+
+&serial0 {
+	/*
+	 * Debug serial port. TX is exposed on the right pad of unpopulated
+	 * resistor R1247, RX on the right pad of R1162.
+	 */
+	status = "okay";
+};
+
+&serial1 {
+	/* "Serial over LAN" port. Connected to ttyS2 of the host system. */
+	status = "okay";
+};
+
+&watchdog0 {
+	status = "okay";
+};
--
2.30.2

