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[73.252.146.110]) by smtp.gmail.com with ESMTPSA id b26sm8082292pfo.47.2021.08.05.15.28.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Aug 2021 15:28:34 -0700 (PDT) From: rentao.bupt@gmail.com To: Rob Herring , Joel Stanley , Andrew Jeffery , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, openbmc@lists.ozlabs.org, taoren@fb.com Cc: Tao Ren Subject: [PATCH v2 5/6] ARM: dts: aspeed: Add Facebook Elbert (AST2600) BMC Date: Thu, 5 Aug 2021 15:28:17 -0700 Message-Id: <20210805222818.8391-6-rentao.bupt@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210805222818.8391-1-rentao.bupt@gmail.com> References: <20210805222818.8391-1-rentao.bupt@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Tao Ren Add initial version of device tree for Facebook Elbert (AST2600) BMC. Elbert is Facebook's next generation switch platform with an AST2600 BMC integrated for health monitoring purpose. Signed-off-by: Tao Ren --- Changes in v2: - added more notes about the new platform in patch description. - "mac3" was disabled (because it was removed from Facebook AST2600 NetBMC common dtsi). Will add "mac3" back when "fixed-link" is supported in the MAC driver. arch/arm/boot/dts/Makefile | 1 + .../boot/dts/aspeed-bmc-facebook-elbert.dts | 185 ++++++++++++++++++ 2 files changed, 186 insertions(+) create mode 100644 arch/arm/boot/dts/aspeed-bmc-facebook-elbert.dts diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 74c760038f28..7cbb982a7c8b 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -1411,6 +1411,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \ aspeed-bmc-bytedance-g220a.dtb \ aspeed-bmc-facebook-cloudripper.dtb \ aspeed-bmc-facebook-cmm.dtb \ + aspeed-bmc-facebook-elbert.dtb \ aspeed-bmc-facebook-galaxy100.dtb \ aspeed-bmc-facebook-minipack.dtb \ aspeed-bmc-facebook-tiogapass.dtb \ diff --git a/arch/arm/boot/dts/aspeed-bmc-facebook-elbert.dts b/arch/arm/boot/dts/aspeed-bmc-facebook-elbert.dts new file mode 100644 index 000000000000..27b43fe099f1 --- /dev/null +++ b/arch/arm/boot/dts/aspeed-bmc-facebook-elbert.dts @@ -0,0 +1,185 @@ +// SPDX-License-Identifier: GPL-2.0+ +// Copyright (c) 2020 Facebook Inc. + +/dts-v1/; + +#include "ast2600-facebook-netbmc-common.dtsi" + +/ { + model = "Facebook Elbert BMC"; + compatible = "facebook,elbert-bmc", "aspeed,ast2600"; + + aliases { + serial0 = &uart5; + serial1 = &uart1; + serial2 = &uart2; + serial3 = &uart3; + + /* + * 8 child channels of PCA9548 2-0075. + */ + i2c16 = &imux16; + i2c17 = &imux17; + i2c18 = &imux18; + i2c19 = &imux19; + i2c20 = &imux20; + i2c21 = &imux21; + i2c22 = &imux22; + i2c23 = &imux23; + + /* + * 8 child channels of PCA9548 5-0075. + */ + i2c24 = &imux24; + i2c25 = &imux25; + i2c26 = &imux26; + i2c27 = &imux27; + i2c28 = &imux28; + i2c29 = &imux29; + i2c30 = &imux30; + i2c31 = &imux31; + }; + + chosen { + stdout-path = &uart5; + }; + + spi_gpio: spi-gpio { + num-chipselects = <1>; + cs-gpios = <&gpio0 ASPEED_GPIO(X, 0) GPIO_ACTIVE_LOW>; + }; +}; + +&lpc_ctrl { + status = "okay"; +}; + +&kcs2 { + status = "okay"; + aspeed,lpc-io-reg = <0xca8>; +}; + +&kcs3 { + status = "okay"; + aspeed,lpc-io-reg = <0xca2>; +}; + +&i2c2 { + i2c-switch@75 { + compatible = "nxp,pca9548"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x75>; + 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>; + }; + }; +}; + +&i2c5 { + i2c-switch@75 { + compatible = "nxp,pca9548"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x75>; + 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>; + }; + }; +}; + +&i2c11 { + status = "okay"; +}; -- 2.17.1