linux-kernel - [PATCH v2 1/1] ARM:dts:aspeed: Initial device tree for AMD Onyx Platform

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Message-ID: <20240301222257.3309541-1-supreeth.venkatesh@amd.com>
Date: Fri, 1 Mar 2024 16:22:57 -0600
From: Supreeth Venkatesh <supreeth.venkatesh@....com>
To: <joel@....id.au>, <andrew@...id.au>, <devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-aspeed@...ts.ozlabs.org>,
	<linux-kernel@...r.kernel.org>, <openbmc@...ts.ozlabs.org>,
	<robh+dt@...nel.org>
CC: <supreeth.venkatesh@....com>
Subject: [PATCH v2 1/1] ARM:dts:aspeed: Initial device tree for AMD Onyx Platform

Add initial device tree and makefile updates for
AMD Onyx platform.

AMD Onyx platform is an AMD customer reference board with an Aspeed
ast2600 BMC manufactured by AMD.
It describes I2C devices, UARTs, MAC, FMC, etc.
present on AMD Onyx platform.

Signed-off-by: Supreeth Venkatesh <supreeth.venkatesh@....com>
---
Changes since v1:
* Incorporate review comments
* Update commit message
* Remove vmalloc and earlyprintk
---
 arch/arm/boot/dts/aspeed/Makefile             |  1 +
 .../boot/dts/aspeed/aspeed-bmc-amd-onyx.dts   | 94 +++++++++++++++++++
 2 files changed, 95 insertions(+)
 create mode 100644 arch/arm/boot/dts/aspeed/aspeed-bmc-amd-onyx.dts

diff --git a/arch/arm/boot/dts/aspeed/Makefile b/arch/arm/boot/dts/aspeed/Makefile
index fb9cc95f1b60..2b27d377aae2 100644
--- a/arch/arm/boot/dts/aspeed/Makefile
+++ b/arch/arm/boot/dts/aspeed/Makefile
@@ -5,6 +5,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
 	aspeed-ast2600-evb.dtb \
 	aspeed-bmc-amd-daytonax.dtb \
 	aspeed-bmc-amd-ethanolx.dtb \
+	aspeed-bmc-amd-onyx.dtb \
 	aspeed-bmc-ampere-mtjade.dtb \
 	aspeed-bmc-ampere-mtmitchell.dtb \
 	aspeed-bmc-arm-stardragon4800-rep2.dtb \
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-amd-onyx.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-amd-onyx.dts
new file mode 100644
index 000000000000..1831b8d18db2
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-amd-onyx.dts
@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2021 - 2024 AMD Inc.
+// Author: Supreeth Venkatesh <supreeth.venkatesh@....com>
+
+/dts-v1/;
+
+#include "aspeed-g6.dtsi"
+#include <dt-bindings/gpio/aspeed-gpio.h>
+
+/ {
+	model = "AMD Onyx BMC";
+	compatible = "amd,onyx-bmc", "aspeed,ast2600";
+
+	aliases {
+		serial0 = &uart1;
+		serial4 = &uart5;
+	};
+
+	chosen {
+		stdout-path = &uart5;
+		bootargs = "console=ttyS4,115200n8";
+	};
+
+	memory@...00000 {
+		device_type = "memory";
+		reg = <0x80000000 0x80000000>;
+	};
+
+};
+
+&mdio0 {
+	status = "okay";
+	ethphy0: ethernet-phy@0 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <0>;
+	};
+};
+
+&mac3 {
+	status = "okay";
+	phy-mode = "rgmii";
+	phy-handle = <&ethphy0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rgmii4_default>;
+};
+
+&fmc {
+	status = "okay";
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		status = "okay";
+		#include "openbmc-flash-layout-128.dtsi"
+	};
+};
+
+//Host Console
+&uart1 {
+	status = "okay";
+};
+
+//BMC Console
+&uart5 {
+	status = "okay";
+};
+
+&gpio0 {
+gpio-line-names =
+	/*A0-A7*/	"","","","","","","","",
+	/*B0-B7*/	"","","","","MON_POST_COMPLETE","P0_PRESENT_L","","",
+	/*C0-C7*/	"","","","","","","","",
+	/*D0-D7*/	"","","","","","","","",
+	/*E0-E7*/	"","","","","","","","",
+	/*F0-F7*/	"","","","","","","","",
+	/*G0-G7*/	"","","","","","","","",
+	/*H0-H7*/	"","ASSERT_WARM_RST_BTN_L","ASSERT_SOC_RST_BTN_L","","","","","",
+	/*I0-I7*/	"","","","","","","","P0_I3C_APML_ALERT_L",
+	/*J0-J7*/	"","","","","","","","",
+	/*K0-K7*/	"","","","","","","","",
+	/*L0-L7*/	"","","","","","","","",
+	/*M0-M7*/	"","","","","","","","",
+	/*N0-N7*/	"","","","","","","PSP_SOFT_FUSE_NOTIFY","ASSERT_BMC_READY",
+	/*O0-O7*/	"","","HDT_SEL","HDT_XTRIG5","HDT_XTRIG6","JTAG_TRST_N","","",
+	/*P0-P7*/	"MON_RST_BTN_L","ASSERT_RST_BTN_L","MON_PWR_BTN_L","ASSERT_PWR_BTN_L","HPM_FPGA_LOCKOUT","ASSERT_NMI_BTN_L","MON_PWR_GOOD","",
+	/*Q0-Q7*/	"","","HDT_DBREQ_L","","BIOS_SPD_MUX_CTRL_RELEASED_L","","","",
+	/*R0-R7*/	"","","","","","","","",
+	/*S0-S7*/	"","","","","","","P0_DIMM_AF_ERROR","P0_DIMM_GL_ERROR",
+	/*T0-T7*/	"","","","","","","","",
+	/*U0-U7*/	"","","","","","","","",
+	/*V0-V7*/	"","","","","","","","",
+	/*W0-W7*/	"","","","","","","","",
+	/*X0-X7*/	"","","","","","","","",
+	/*Y0-Y7*/	"","","","","","","","",
+	/*Z0-Z7*/	"","","","","","","","";
+};
--
2.34.1