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 chanh@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"; +};