ARM: dts: aspeed: Add Nuvia DC-SCM BMC

Add initial version of device tree for Nuvia DC-SCM BMC which is
equipped with Aspeed AST2600 BMC SoC.
Signed-off-by: NGraeme Gregory <quic_ggregory@quicinc.com>
Signed-off-by: NJae Hyun Yoo <quic_jaehyoo@quicinc.com>
Link: https://lore.kernel.org/r/20220325190247.468079-1-quic_jaehyoo@quicinc.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

arch/arm/boot/dts/Makefile

@@ -1546,6 +1546,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
 	aspeed-bmc-lenovo-hr630.dtb \
 	aspeed-bmc-lenovo-hr855xg2.dtb \
 	aspeed-bmc-microsoft-olympus.dtb \
+	aspeed-bmc-nuvia-dc-scm.dtb \
 	aspeed-bmc-opp-lanyang.dtb \
 	aspeed-bmc-opp-mihawk.dtb \
 	aspeed-bmc-opp-mowgli.dtb \

arch/arm/boot/dts/aspeed-bmc-nuvia-dc-scm.dts

+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
+
+/dts-v1/;
+
+#include "aspeed-g6.dtsi"
+
+/ {
+	model = "Nuvia DC-SCM BMC";
+	compatible = "nuvia,dc-scm-bmc", "aspeed,ast2600";
+
+	aliases {
+		serial4 = &uart5;
+	};
+
+	chosen {
+		stdout-path = &uart5;
+		bootargs = "console=ttyS4,115200n8";
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x80000000 0x40000000>;
+	};
+};
+
+&mdio3 {
+	status = "okay";
+
+	ethphy3: ethernet-phy@1 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <1>;
+	};
+};
+
+&mac2 {
+	status = "okay";
+
+	/* Bootloader sets up the MAC to insert delay */
+	phy-mode = "rgmii";
+	phy-handle = <&ethphy3>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rgmii3_default>;
+};
+
+&mac3 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rmii4_default>;
+
+	use-ncsi;
+};
+
+&rtc {
+	status = "okay";
+};
+
+&fmc {
+	status = "okay";
+
+	flash@0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "bmc";
+		spi-max-frequency = <133000000>;
+#include "openbmc-flash-layout-64.dtsi"
+	};
+
+	flash@1 {
+		status = "okay";
+		m25p,fast-read;
+		label = "alt-bmc";
+		spi-max-frequency = <133000000>;
+#include "openbmc-flash-layout-64-alt.dtsi"
+	};
+};
+
+&spi1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi1_default>;
+
+	flash@0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "bios";
+		spi-max-frequency = <133000000>;
+	};
+};
+
+&gpio0 {
+	gpio-line-names =
+	/*A0-A7*/	"","","","","","","","",
+	/*B0-B7*/	"BMC_FLASH_MUX_SEL","","","","","","","",
+	/*C0-C7*/	"","","","","","","","",
+	/*D0-D7*/	"","","","","","","","",
+	/*E0-E7*/	"","","","","","","","",
+	/*F0-F7*/	"","","","","","","","",
+	/*G0-G7*/	"","","","","","","","",
+	/*H0-H7*/	"","","","","","","","",
+	/*I0-I7*/	"","","","","","","","",
+	/*J0-J7*/	"","","","","","","","",
+	/*K0-K7*/	"","","","","","","","",
+	/*L0-L7*/	"","","","","","","","",
+	/*M0-M7*/	"","","","","","","","",
+	/*N0-N7*/	"BMC_FWSPI_RST_N","","GPIO_1_BMC_3V3","","","","","",
+	/*O0-O7*/	"JTAG_MUX_A","JTAG_MUX_B","","","","","","",
+	/*P0-P7*/	"","","","","","","","",
+	/*Q0-Q7*/	"","","","","","","","",
+	/*R0-R7*/	"","","","","","","","",
+	/*S0-S7*/	"","","","","","","","",
+	/*T0-T7*/	"","","","","","","","",
+	/*U0-U7*/	"","","","","","","","",
+	/*V0-V7*/	"","","","SCMFPGA_SPARE_GPIO1_3V3",
+			"SCMFPGA_SPARE_GPIO2_3V3","SCMFPGA_SPARE_GPIO3_3V3",
+			"SCMFPGA_SPARE_GPIO4_3V3","SCMFPGA_SPARE_GPIO5_3V3",
+	/*W0-W7*/	"","","","","","","","",
+	/*X0-X7*/	"","","","","","","","",
+	/*Y0-Y7*/	"","","","","","","","",
+	/*Z0-Z7*/	"","","","","","","","",
+	/*AA0-AA7*/	"","","","","","","","",
+	/*AB0-AB7*/	"","","","","","","","",
+	/*AC0-AC7*/	"","","","","","","","";
+};
+
+&gpio1 {
+	gpio-line-names =
+	/*A0-A7*/	"GPI_1_BMC_1V8","","","","","",
+			"SCMFPGA_SPARE_GPIO1_1V8","SCMFPGA_SPARE_GPIO2_1V8",
+	/*B0-B7*/	"SCMFPGA_SPARE_GPIO3_1V8","SCMFPGA_SPARE_GPIO4_1V8",
+			"SCMFPGA_SPARE_GPIO5_1V8","","","","","",
+	/*C0-C7*/	"","","","","","","","",
+	/*D0-D7*/	"","BMC_SPI1_RST_N","BIOS_FLASH_MUX_SEL","",
+			"","TPM2_PIRQ_N","TPM2_RST_N","",
+	/*E0-E7*/	"","","","","","","","";
+};
+
+&i2c2 {
+	status = "okay";
+};
+
+&i2c4 {
+	status = "okay";
+};
+
+&i2c5 {
+	status = "okay";
+};
+
+&i2c6 {
+	status = "okay";
+};
+
+&i2c7 {
+	status = "okay";
+};
+
+&i2c8 {
+	status = "okay";
+};
+
+&i2c9 {
+	status = "okay";
+};
+
+&i2c10 {
+	status = "okay";
+};
+
+&i2c12 {
+	status = "okay";
+};
+
+&i2c13 {
+	status = "okay";
+};
+
+&i2c14 {
+	status = "okay";
+};
+
+&i2c15 {
+	status = "okay";
+};
+
+&vhub {
+	status = "okay";
+};