From: Tao Ren <rentao.bupt@gmail.com>
Date: Thu, 5 Aug 2021 22:28:17 +0000 (-0700)
Subject: ARM: dts: aspeed: Add Facebook Elbert (AST2600) BMC
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2f31f8c2a3aae47041687bd26f21ef62f4de081c;p=linux.git

ARM: dts: aspeed: Add Facebook Elbert (AST2600) BMC

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 <rentao.bupt@gmail.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20210805222818.8391-6-rentao.bupt@gmail.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
---

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index da19be093c51d..d985e74ab0728 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1435,6 +1435,7 @@ 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 0000000000000..27b43fe099f14
--- /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";
+};