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From:   Logananth Sundararaj <logananth13.hcl@gmail.com>
Date:   Thu, 7 Jul 2022 18:50:54 +0530
To:     Arnd Bergmann <arnd@arndb.de>, Olof Johansson <olof@lixom.net>,
        soc@kernel.org, Rob Herring <robh+dt@kernel.org>,
        Joel Stanley <joel@jms.id.au>,
        Andrew Jeffery <andrew@aj.id.au>,
        linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-aspeed@lists.ozlabs.org,
        openbmc@lists.ozlabs.org
Cc:     garnermic@gmail.com, thangavel.k@hcl.com, naveen.mosess@hcl.com,
        patrick@stwcx.xyz, velumanit@hcl.com
Subject: [PATCH v3] The Yosemite V3.5 is a facebook multi-node server
 platform that host four OCP server. The BMC in the Yosemite V3.5 platform
 based on AST2600 SoC.
Message-ID: <20220707132054.GA10610@logan-ThinkPad-T14-Gen-1>
MIME-Version: 1.0
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User-Agent: Mutt/1.9.4 (2018-02-28)
Precedence: bulk

This patch adds linux device tree entry related to
Yosemite V3.5 specific devices connected to BMC SoC.

Signed-off-by: Logananth Sundararaj <logananth_s@hcl.com>

---
--- v3 - addressed v2 patch comments.
--- v2 - Enabled i2c drivers.
--- v1 - Initial draft.
---
---
 arch/arm/boot/dts/Makefile                    |   1 +
 .../boot/dts/aspeed-bmc-facebook-fby35.dts    | 266 ++++++++++++++++++
 2 files changed, 267 insertions(+)
 create mode 100644 arch/arm/boot/dts/aspeed-bmc-facebook-fby35.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 7e0934180724..58add093e5fb 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1465,6 +1465,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
 	aspeed-bmc-facebook-cloudripper.dtb \
 	aspeed-bmc-facebook-cmm.dtb \
 	aspeed-bmc-facebook-elbert.dtb \
+	aspeed-bmc-facebook-fby35.dtb \
 	aspeed-bmc-facebook-fuji.dtb \
 	aspeed-bmc-facebook-galaxy100.dtb \
 	aspeed-bmc-facebook-minipack.dtb \
diff --git a/arch/arm/boot/dts/aspeed-bmc-facebook-fby35.dts b/arch/arm/boot/dts/aspeed-bmc-facebook-fby35.dts
new file mode 100644
index 000000000000..32262cf1d9ea
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-facebook-fby35.dts
@@ -0,0 +1,266 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2020 Facebook Inc.
+
+/dts-v1/;
+
+#include "aspeed-g6.dtsi"
+#include <dt-bindings/gpio/aspeed-gpio.h>
+#include <dt-bindings/i2c/i2c.h>
+
+/ {
+	model = "Facebook fby35";
+	compatible = "facebook,fby35", "aspeed,ast2600";
+
+	aliases {
+		serial4 = &uart5;
+	};
+
+	chosen {
+		stdout-path = &uart5;
+		bootargs = "console=ttyS4,57600n8 root=/dev/ram rw vmalloc=384M";
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x80000000 0x80000000>;
+	};
+
+	iio-hwmon {
+		compatible = "iio-hwmon";
+		io-channels = <&adc0 0>, <&adc0 1>, <&adc0 2>, <&adc0 3>,
+			<&adc0 4>, <&adc0 5>, <&adc0 6>, <&adc0 7>,
+			<&adc1 0>, <&adc1 1>, <&adc1 2>, <&adc1 3>,
+			<&adc1 4>, <&adc1 5>, <&adc1 6>;
+	};
+	spi_gpio: spi-gpio {
+		status = "okay";
+		compatible = "spi-gpio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		gpio-sck = <&gpio0 ASPEED_GPIO(X, 3) GPIO_ACTIVE_HIGH>;
+		gpio-mosi = <&gpio0 ASPEED_GPIO(X, 4) GPIO_ACTIVE_HIGH>;
+		gpio-miso = <&gpio0 ASPEED_GPIO(X, 5) GPIO_ACTIVE_HIGH>;
+		num-chipselects = <1>;
+		cs-gpios = <&gpio0 ASPEED_GPIO(X, 0) GPIO_ACTIVE_LOW>;
+
+		tpmdev@0 {
+			compatible = "tcg,tpm_tis-spi";
+			spi-max-frequency = <33000000>;
+			reg = <0>;
+		};
+	};
+
+};
+
+&mac3 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rmii4_default>;
+	no-hw-checksum;
+	use-ncsi;
+	mlx,multi-host;
+	ncsi-ctrl,start-redo-probe;
+	ncsi-ctrl,no-channel-monitor;
+	ncsi-package = <1>;
+	ncsi-channel = <1>;
+	ncsi-rexmit = <1>;
+	ncsi-timeout = <2>;
+};
+
+&uart1 {
+	status = "okay";
+};
+
+&uart2 {
+	status = "okay";
+};
+
+&uart3 {
+	status = "okay";
+};
+
+&uart4 {
+	status = "okay";
+};
+
+&uart5 {
+	status = "okay";
+	compatible = "snps,dw-apb-uart";
+};
+
+&wdt1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdtrst1_default>;
+	aspeed,reset-type = "soc";
+	aspeed,external-signal;
+	aspeed,ext-push-pull;
+	aspeed,ext-active-high;
+	aspeed,ext-pulse-duration = <256>;
+};
+
+&rtc {
+	status = "okay";
+};
+
+&fmc {
+	status = "okay";
+	flash@0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "spi0.1";
+		spi-max-frequency = <50000000>;
+		#include "openbmc-flash-layout-128.dtsi"
+	};
+	flash@1 {
+		status = "okay";
+		m25p,fast-read;
+		label = "spi0.0";
+		spi-max-frequency = <50000000>;
+		#include "openbmc-flash-layout.dtsi"
+	};
+};
+
+&i2c0 {
+	//Host1 IPMB bus
+	status = "okay";
+	multi-master;
+	ipmb0@10 {
+		compatible = "ipmb-dev";
+		reg = <(0x10 | I2C_OWN_SLAVE_ADDRESS)>;
+		i2c-protocol;
+	};
+};
+
+&i2c1 {
+	//Host2 IPMB bus
+	status = "okay";
+	multi-master;
+	ipmb1@10 {
+		compatible = "ipmb-dev";
+		reg = <(0x10 | I2C_OWN_SLAVE_ADDRESS)>;
+		i2c-protocol;
+	};
+};
+
+&i2c2 {
+	//Host3 IPMB bus
+	status = "okay";
+	multi-master;
+	ipmb2@10 {
+		compatible = "ipmb-dev";
+		reg = <(0x10 | I2C_OWN_SLAVE_ADDRESS)>;
+		i2c-protocol;
+	};
+};
+
+&i2c3 {
+	//Host1 IPMB bus
+	status = "okay";
+	multi-master;
+	ipmb3@10 {
+		compatible = "ipmb-dev";
+		reg = <(0x10 | I2C_OWN_SLAVE_ADDRESS)>;
+		i2c-protocol;
+	};
+};
+
+&i2c4 {
+	status = "okay";
+};
+
+&i2c5 {
+	status = "okay";
+};
+
+&i2c6 {
+	status = "okay";
+};
+
+&i2c7 {
+	status = "okay";
+};
+
+&i2c8 {
+	//NIC SENSOR TEMP
+	status = "okay";
+	tmp421@1f {
+		compatible = "ti,tmp421";
+		reg = <0x1f>;
+	};
+};
+
+&i2c9 {
+	// Debug-Card IPMB bus
+	status = "okay";
+	multi-master;
+	ipmb9@30 {
+		compatible = "ipmb-dev";
+		reg = <(0x30 | I2C_OWN_SLAVE_ADDRESS)>;
+		i2c-protocol;
+	};
+};
+
+&i2c10 {
+	status = "okay";
+};
+
+&i2c11 {
+	status = "okay";
+	//FRU EEPROM
+	eeprom@51 {
+		compatible = "atmel,24c64";
+		reg = <0x51>;
+		pagesize = <32>;
+	};
+};
+
+&i2c12 {
+	status = "okay";
+	//INLET TEMP
+	tmp75@4e {
+		compatible = "ti,tmp75";
+		reg = <0x4e>;
+	};
+	//OUTLET TEMP
+	tmp75@4f {
+		compatible = "ti,tmp75";
+		reg = <0x4f>;
+	};
+};
+
+&i2c13 {
+	status = "okay";
+};
+
+&adc0 {
+	ref_voltage = <2500>;
+	status = "okay";
+
+	pinctrl-0 = <&pinctrl_adc0_default &pinctrl_adc1_default
+		&pinctrl_adc2_default &pinctrl_adc3_default
+		&pinctrl_adc4_default &pinctrl_adc5_default
+		&pinctrl_adc6_default &pinctrl_adc7_default>;
+};
+
+&adc1 {
+	ref_voltage = <2500>;
+	status = "okay";
+
+	pinctrl-0 = <&pinctrl_adc8_default &pinctrl_adc9_default
+		&pinctrl_adc10_default &pinctrl_adc11_default
+		&pinctrl_adc12_default &pinctrl_adc13_default>;
+};
+&ehci0 {
+	status = "okay";
+};
+
+&ehci1 {
+	status = "okay";
+};
+
+&uhci {
+	status = "okay";
+};
-- 
2.17.1