[PATCH u-boot v2019.04-aspeed-openbmc] ARM: dts: aspeed: Add Ampere's BMC platform (AST2600)

[Chanh Nguyen]

Add the initial version of the device tree for the Ampere BMC
platform, which is equipped with the Aspeed AST2600 BMC SoC.

Signed-off-by: Chanh Nguyen <chanh at os.amperecomputing.com>
---
 arch/arm/dts/Makefile           |   1 +
 arch/arm/dts/ast2600-ampere.dts | 113 ++++++++++++++++++++++++++++++++
 2 files changed, 114 insertions(+)
 create mode 100644 arch/arm/dts/ast2600-ampere.dts

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 37675a3277..3642d59c89 100755
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -691,6 +691,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
 	ast2600-greatlakes.dtb \
 	ast2600-intel.dtb \
 	ast2600-ncsi.dtb \
+	ast2600-ampere.dtb \
 	ast2600-p10bmc.dtb \
 	ast2600-pfr.dtb \
 	ast2600-qcom-dc-scm-v1.dtb \
diff --git a/arch/arm/dts/ast2600-ampere.dts b/arch/arm/dts/ast2600-ampere.dts
new file mode 100644
index 0000000000..63088703a7
--- /dev/null
+++ b/arch/arm/dts/ast2600-ampere.dts
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2022, Ampere Computing LLC
+/dts-v1/;
+
+#include "ast2600-u-boot.dtsi"
+
+/ {
+	model = "AST2600 Ampere BMC";
+	compatible = "aspeed,ast2600-ampere", "aspeed,ast2600";
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x40000000>;
+	};
+
+	chosen {
+		stdout-path = &uart5;
+	};
+
+	aliases {
+		spi0 = &fmc;
+		ethernet0 = &mac0;
+	};
+
+	cpus {
+		cpu at 0 {
+			clock-frequency = <800000000>;
+		};
+		cpu at 1 {
+			clock-frequency = <800000000>;
+		};
+	};
+};
+
+&uart5 {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
+
+&sdrammc {
+	clock-frequency = <400000000>;
+};
+
+&wdt1 {
+	status = "okay";
+};
+
+&wdt2 {
+	status = "okay";
+};
+
+&wdt3 {
+	status = "okay";
+};
+
+&mdio {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_mdio1_default>;
+
+};
+
+&mac0 {
+	status = "okay";
+	phy-mode = "rgmii-rxid";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rgmii1_default>;
+};
+
+&fmc {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_fmcquad_default>;
+
+	flash at 0 {
+		status = "okay";
+		spi-max-frequency = <50000000>;
+		spi-tx-bus-width = <4>;
+		spi-rx-bus-width = <4>;
+	};
+
+	flash at 1 {
+		status = "okay";
+		spi-max-frequency = <50000000>;
+		spi-tx-bus-width = <4>;
+		spi-rx-bus-width = <4>;
+	};
+};
+
+&scu {
+	mac0-clk-delay = <0x10 0x0a
+			  0x10 0x10
+			  0x10 0x10>;
+};
+
+&hace {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
+
+&acry {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
+
+&i2c4 {
+	status = "okay";
+};
+
+&i2c14 {
+	status = "okay";
+};
-- 
2.17.1