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Message-Id: <20200824211948.12852-6-rentao.bupt@gmail.com>
Date: Mon, 24 Aug 2020 14:19:48 -0700
From: rentao.bupt@...il.com
To: Rob Herring <robh+dt@...nel.org>, Joel Stanley <joel@....id.au>,
Andrew Jeffery <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, taoren@...com
Cc: Tao Ren <rentao.bupt@...il.com>
Subject: [PATCH 5/5] ARM: dts: aspeed: Add Facebook Wedge400 BMC
From: Tao Ren <rentao.bupt@...il.com>
Add initial version of device tree for Facebook Wedge400 (AST2500) BMC.
Signed-off-by: Tao Ren <rentao.bupt@...il.com>
---
arch/arm/boot/dts/Makefile | 1 +
.../boot/dts/aspeed-bmc-facebook-wedge400.dts | 420 ++++++++++++++++++
2 files changed, 421 insertions(+)
create mode 100644 arch/arm/boot/dts/aspeed-bmc-facebook-wedge400.dts
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 77f1c95c4e1c..24f7acc0e2ee 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1354,6 +1354,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
aspeed-bmc-facebook-tiogapass.dtb \
aspeed-bmc-facebook-wedge40.dtb \
aspeed-bmc-facebook-wedge100.dtb \
+ aspeed-bmc-facebook-wedge400.dtb \
aspeed-bmc-facebook-yamp.dtb \
aspeed-bmc-facebook-yosemitev2.dtb \
aspeed-bmc-ibm-rainier.dtb \
diff --git a/arch/arm/boot/dts/aspeed-bmc-facebook-wedge400.dts b/arch/arm/boot/dts/aspeed-bmc-facebook-wedge400.dts
new file mode 100644
index 000000000000..ad1fcad3676c
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-facebook-wedge400.dts
@@ -0,0 +1,420 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2019 Facebook Inc.
+/dts-v1/;
+
+#include <dt-bindings/gpio/aspeed-gpio.h>
+#include "ast2500-facebook-netbmc-common.dtsi"
+
+/ {
+ model = "Facebook Wedge 400 BMC";
+ compatible = "facebook,wedge400-bmc", "aspeed,ast2500";
+
+ aliases {
+ /*
+ * PCA9548 (2-0070) provides 8 channels connecting to
+ * SCM (System Controller Module).
+ */
+ i2c16 = &imux16;
+ i2c17 = &imux17;
+ i2c18 = &imux18;
+ i2c19 = &imux19;
+ i2c20 = &imux20;
+ i2c21 = &imux21;
+ i2c22 = &imux22;
+ i2c23 = &imux23;
+
+ /*
+ * PCA9548 (8-0070) provides 8 channels connecting to
+ * SMB (Switch Main Board).
+ */
+ i2c24 = &imux24;
+ i2c25 = &imux25;
+ i2c26 = &imux26;
+ i2c27 = &imux27;
+ i2c28 = &imux28;
+ i2c29 = &imux29;
+ i2c30 = &imux30;
+ i2c31 = &imux31;
+
+ /*
+ * PCA9548 (11-0076) provides 8 channels connecting to
+ * FCM (Fan Controller Module).
+ */
+ i2c32 = &imux32;
+ i2c33 = &imux33;
+ i2c34 = &imux34;
+ i2c35 = &imux35;
+ i2c36 = &imux36;
+ i2c37 = &imux37;
+ i2c38 = &imux38;
+ i2c39 = &imux39;
+
+ spi2 = &spi_gpio;
+ };
+
+ chosen {
+ stdout-path = &uart1;
+ bootargs = "console=ttyS0,9600n8 root=/dev/ram rw";
+ };
+
+ ast-adc-hwmon {
+ compatible = "iio-hwmon";
+ io-channels = <&adc 0>, <&adc 1>, <&adc 2>, <&adc 3>, <&adc 4>;
+ };
+
+ /*
+ * GPIO-based SPI Master is required to access SPI TPM, because
+ * full-duplex SPI transactions are not supported by ASPEED SPI
+ * Controllers.
+ */
+ spi_gpio: spi-gpio {
+ status = "okay";
+ compatible = "spi-gpio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cs-gpios = <&gpio ASPEED_GPIO(R, 2) GPIO_ACTIVE_LOW>;
+ gpio-sck = <&gpio ASPEED_GPIO(R, 3) GPIO_ACTIVE_HIGH>;
+ gpio-mosi = <&gpio ASPEED_GPIO(R, 4) GPIO_ACTIVE_HIGH>;
+ gpio-miso = <&gpio ASPEED_GPIO(R, 5) GPIO_ACTIVE_HIGH>;
+ num-chipselects = <1>;
+
+ tpmdev@0 {
+ compatible = "tcg,tpm_tis-spi";
+ spi-max-frequency = <33000000>;
+ reg = <0>;
+ };
+ };
+};
+
+/*
+ * Both firmware flashes are 128MB on Wedge400 BMC.
+ */
+&fmc_flash0 {
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ /*
+ * u-boot partition: 384KB.
+ */
+ u-boot@0 {
+ reg = <0x0 0x60000>;
+ label = "u-boot";
+ };
+
+ /*
+ * u-boot environment variables: 128KB.
+ */
+ u-boot-env@...00 {
+ reg = <0x60000 0x20000>;
+ label = "env";
+ };
+
+ /*
+ * FIT image: 123.5 MB.
+ */
+ fit@...00 {
+ reg = <0x80000 0x7b80000>;
+ label = "fit";
+ };
+
+ /*
+ * "data0" partition (4MB) is reserved for persistent
+ * data store.
+ */
+ data0@...0000 {
+ reg = <0x7c00000 0x800000>;
+ label = "data0";
+ };
+
+ /*
+ * "flash0" partition (covering the entire flash) is
+ * explicitly created to avoid breaking legacy applications.
+ */
+ flash0@0 {
+ reg = <0x0 0x8000000>;
+ label = "flash0";
+ };
+ };
+};
+
+&fmc_flash1 {
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ flash1@0 {
+ reg = <0x0 0x8000000>;
+ label = "flash1";
+ };
+ };
+};
+
+&uart2 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_txd2_default
+ &pinctrl_rxd2_default>;
+};
+
+&uart4 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_txd4_default
+ &pinctrl_rxd4_default>;
+};
+
+/*
+ * I2C bus #0 is multi-master environment dedicated for BMC and Bridge IC
+ * communication.
+ */
+&i2c0 {
+ status = "okay";
+ multi-master;
+ bus-frequency = <1000000>;
+};
+
+&i2c1 {
+ status = "okay";
+};
+
+&i2c2 {
+ status = "okay";
+
+ i2c-switch@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ imux16: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+
+ imux17: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+
+ imux18: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+
+ imux19: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+
+ imux20: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+
+ imux21: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+
+ imux22: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+
+ imux23: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+ };
+};
+
+&i2c3 {
+ status = "okay";
+};
+
+&i2c4 {
+ status = "okay";
+};
+
+&i2c5 {
+ status = "okay";
+};
+
+&i2c6 {
+ status = "okay";
+};
+
+&i2c7 {
+ status = "okay";
+};
+
+&i2c8 {
+ status = "okay";
+
+ i2c-switch@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ imux24: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+
+ imux25: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+
+ imux26: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+
+ imux27: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+
+ imux28: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+
+ imux29: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+
+ imux30: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+
+ imux31: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+
+ };
+};
+
+&i2c9 {
+ status = "okay";
+};
+
+&i2c10 {
+ status = "okay";
+};
+
+&i2c11 {
+ status = "okay";
+
+ i2c-switch@76 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x76>;
+ i2c-mux-idle-disconnect;
+
+ imux32: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+
+ imux33: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+
+ imux34: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+
+ imux35: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+
+ imux36: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ };
+
+ imux37: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <5>;
+ };
+
+ imux38: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <6>;
+ };
+
+ imux39: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <7>;
+ };
+
+ };
+};
+
+&i2c12 {
+ status = "okay";
+};
+
+&i2c13 {
+ status = "okay";
+};
+
+&adc {
+ status = "okay";
+};
+
+&ehci1 {
+ status = "okay";
+};
+
+&uhci {
+ status = "okay";
+};
+
+&sdhci1 {
+ /*
+ * DMA mode needs to be disabled to avoid conflicts with UHCI
+ * Controller in AST2500 SoC.
+ */
+ sdhci-caps-mask = <0x0 0x580000>;
+};
--
2.17.1
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