linux-kernel - [PATCH 7/7] arm64: dts: keembay: Add device tree for Keem Bay EVM board

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Message-Id: <20200616155613.121242-8-daniele.alessandrelli@linux.intel.com>
Date:   Tue, 16 Jun 2020 16:56:13 +0100
From:   Daniele Alessandrelli <daniele.alessandrelli@...ux.intel.com>
To:     linux-arm-kernel@...ts.infradead.org,
        Rob Herring <robh+dt@...nel.org>,
        Jassi Brar <jassisinghbrar@...il.com>,
        Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>
Cc:     Paul Murphy <paul.j.murphy@...el.com>,
        Daniele Alessandrelli <daniele.alessandrelli@...el.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Dinh Nguyen <dinguyen@...nel.org>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: [PATCH 7/7] arm64: dts: keembay: Add device tree for Keem Bay EVM board

From: Daniele Alessandrelli <daniele.alessandrelli@...el.com>

Add initial device tree for Keem Bay EVM board. With this minimal device
tree the board boots fine using an initramfs image.

Reviewed-by: Dinh Nguyen <dinguyen@...nel.org>
Signed-off-by: Daniele Alessandrelli <daniele.alessandrelli@...el.com>
---
 MAINTAINERS                               |  1 +
 arch/arm64/boot/dts/intel/Makefile        |  1 +
 arch/arm64/boot/dts/intel/keembay-evm.dts | 55 +++++++++++++++++++++++
 3 files changed, 57 insertions(+)
 create mode 100644 arch/arm64/boot/dts/intel/keembay-evm.dts

diff --git a/MAINTAINERS b/MAINTAINERS
index 610907bf391b..d714762e805c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1959,6 +1959,7 @@ M:	Paul J. Murphy <paul.j.murphy@...el.com>
 M:	Daniele Alessandrelli <daniele.alessandrelli@...el.com>
 S:	Maintained
 F:	Documentation/devicetree/bindings/arm/keembay.yaml
+F:	arch/arm64/boot/dts/intel/keembay-evm.dts
 F:	arch/arm64/boot/dts/intel/keembay-soc.dtsi
 F:	include/dt-bindings/clock/keembay-clocks.h
 F:	include/dt-bindings/power/keembay-power.h
diff --git a/arch/arm64/boot/dts/intel/Makefile b/arch/arm64/boot/dts/intel/Makefile
index 40cb16e8c814..296eceec4276 100644
--- a/arch/arm64/boot/dts/intel/Makefile
+++ b/arch/arm64/boot/dts/intel/Makefile
@@ -1,3 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0-only
 dtb-$(CONFIG_ARCH_AGILEX) += socfpga_agilex_socdk.dtb \
 			     socfpga_agilex_socdk_nand.dtb
+dtb-$(CONFIG_ARCH_KEEMBAY) += keembay-evm.dtb
diff --git a/arch/arm64/boot/dts/intel/keembay-evm.dts b/arch/arm64/boot/dts/intel/keembay-evm.dts
new file mode 100644
index 000000000000..46859763cb03
--- /dev/null
+++ b/arch/arm64/boot/dts/intel/keembay-evm.dts
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020, Intel Corporation
+ *
+ * Device tree describing Keem Bay EVM board.
+ */
+
+/dts-v1/;
+
+#include "keembay-soc.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	model = "Keem Bay EVM";
+	compatible = "intel,keembay-evm";
+
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	aliases {
+		serial0 = &uart3;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@...00000 {
+		device_type = "memory";
+		/* 2GB of DDR memory. */
+		reg = <0x0 0x80000000 0x0 0x80000000>;
+	};
+
+	sysmem@...00000 {
+		compatible = "mmio-sram";
+		reg = <0x0 0x84000000 0x0 0x800000>;
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges = <0 0x0 0x0 0x84000000 0x0 0x800000>;
+		/*
+		 * Allocate 1MB at fixed location for shared memory between
+		 * non-secure world and BL31 to be used for SCMI.
+		 */
+		scmi_sec_shmem: scmi_sec_shmem@0 {
+			compatible = "arm,scmi-shmem";
+			reg = <0x0 0x0 0x0 0x100000>;
+			pool;
+		};
+	};
+};
+
+&uart3 {
+	status = "okay";
+};
-- 
2.26.2