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From:   Logananth Sundararaj <logananth13.hcl@gmail.com>
Date:   Tue, 14 Jun 2022 18:25:25 +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:     patrick@stwcx.xyz, garnermic@gmail.com, thangavel.k@hcl.com,
        naveen.mosess@hcl.com
Subject: [PATCH] ARM: dts: aspeed: Adding Facebook Yosemite V3 BMC
Message-ID: <20220614125525.GA3629@logan-ThinkPad-T14-Gen-1>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
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User-Agent: Mutt/1.9.4 (2018-02-28)
Precedence: bulk

The Yosemite V3 is a facebook multi-node server
platform that host four OCP server. The BMC
in the Yosemite V3 platform based on AST2600 SoC.

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

Signed-off-by: Logananth Sundararaj <logananth_s@hcl.com>
---
--- v1 - Initial draft.
---
 arch/arm/boot/dts/Makefile                    |   1 +
 .../boot/dts/aspeed-bmc-facebook-fby35.dts    | 251 ++++++++++++++++++
 2 files changed, 252 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..7ddf2d442c22
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-facebook-fby35.dts
@@ -0,0 +1,251 @@
+// 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>
+
+/ {
+	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";
+	/* Workaround for AST2600 A0 */
+	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";
+	reg = <0x1e620000 0xc4>, <0x20000000 0x8000000>;
+	flash@0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "spi0.1";
+		spi-max-frequency = <50000000>;
+		spi-tx-bus-width = <2>;
+		spi-rx-bus-width = <2>;
+		#include "openbmc-flash-layout-64.dtsi"
+	};
+};
+
+&spi1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi1_default>;
+
+	flash@0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "pnor";
+		spi-rx-bus-width = <4>;
+		spi-max-frequency = <100000000>;
+	};
+};
+
+&i2c0 {
+	multi-master;
+	bus-frequency = <400000>;
+	aspeed,hw-timeout-ms = <1000>;
+	status = "okay";
+};
+
+&i2c1 {
+	multi-master;
+	bus-frequency = <400000>;
+	aspeed,hw-timeout-ms = <1000>;
+	status = "okay";
+};
+
+&i2c2 {
+	multi-master;
+	bus-frequency = <400000>;
+	aspeed,hw-timeout-ms = <1000>;
+	status = "okay";
+};
+
+&i2c3 {
+	multi-master;
+	bus-frequency = <400000>;
+	aspeed,hw-timeout-ms = <1000>;
+	status = "okay";
+};
+
+&i2c4 {
+	status = "okay";
+};
+
+&i2c5 {
+	status = "okay";
+};
+
+&i2c6 {
+	status = "okay";
+};
+
+&i2c7 {
+	status = "okay";
+};
+
+&i2c8 {
+	status = "okay";
+};
+
+&i2c9 {
+	multi-master;
+	bus-frequency = <100000>;
+	aspeed,hw-timeout-ms = <1000>;
+	status = "okay";
+};
+
+&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