Add the initial version of the device tree for the Ampere BMC
platform, which is equipped with the Aspeed AST2600 BMC SoC.
Signed-off-by: Chanh Nguyen <ch...@os.amperecomputing.com>
---
arch/arm/dts/Makefile | 1 +
arch/arm/dts/ast2600-ampere.dts | 113 ++++++++++++++++++++++++++++++++
2 files changed, 114 insertions(+)
create mode 100644 arch/arm/dts/ast2600-ampere.dts
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 37675a3277..3642d59c89 100755
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -691,6 +691,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
ast2600-greatlakes.dtb \
ast2600-intel.dtb \
ast2600-ncsi.dtb \
+ ast2600-ampere.dtb \
ast2600-p10bmc.dtb \
ast2600-pfr.dtb \
ast2600-qcom-dc-scm-v1.dtb \
diff --git a/arch/arm/dts/ast2600-ampere.dts b/arch/arm/dts/ast2600-ampere.dts
new file mode 100644
index 0000000000..63088703a7
--- /dev/null
+++ b/arch/arm/dts/ast2600-ampere.dts
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2022, Ampere Computing LLC
+/dts-v1/;
+
+#include "ast2600-u-boot.dtsi"
+
+/ {
+ model = "AST2600 Ampere BMC";
+ compatible = "aspeed,ast2600-ampere", "aspeed,ast2600";
+
+ memory {
+ device_type = "memory";
+ reg = <0x80000000 0x40000000>;
+ };
+
+ chosen {
+ stdout-path = &uart5;
+ };
+
+ aliases {
+ spi0 = &fmc;
+ ethernet0 = &mac0;
+ };
+
+ cpus {
+ cpu@0 {
+ clock-frequency = <800000000>;
+ };
+ cpu@1 {
+ clock-frequency = <800000000>;
+ };
+ };
+};
+
+&uart5 {
+ u-boot,dm-pre-reloc;
+ status = "okay";
+};
+
+&sdrammc {
+ clock-frequency = <400000000>;
+};
+
+&wdt1 {
+ status = "okay";
+};
+
+&wdt2 {
+ status = "okay";
+};
+
+&wdt3 {
+ status = "okay";
+};
+
+&mdio {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_mdio1_default>;
+
+};
+
+&mac0 {
+ status = "okay";
+ phy-mode = "rgmii-rxid";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_rgmii1_default>;
+};
+
+&fmc {
+ status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_fmcquad_default>;
+
+ flash@0 {
+ status = "okay";
+ spi-max-frequency = <50000000>;
+ spi-tx-bus-width = <4>;
+ spi-rx-bus-width = <4>;
+ };
+
+ flash@1 {
+ status = "okay";
+ spi-max-frequency = <50000000>;
+ spi-tx-bus-width = <4>;
+ spi-rx-bus-width = <4>;
+ };
+};
+
+&scu {
+ mac0-clk-delay = <0x10 0x0a
+ 0x10 0x10
+ 0x10 0x10>;
+};
+
+&hace {
+ u-boot,dm-pre-reloc;
+ status = "okay";
+};
+
+&acry {
+ u-boot,dm-pre-reloc;
+ status = "okay";
+};
+
+&i2c4 {
+ status = "okay";
+};
+
+&i2c14 {
+ status = "okay";
+};
--
2.17.1
