diff mbox series

[v3,6/6] riscv: dts: starfive: Add initial StarFive JH8100 device tree

Message ID 20231201121410.95298-7-jeeheng.sia@starfivetech.com (mailing list archive)
State Deferred
Delegated to: Conor Dooley
Headers show
Series Initial device tree support for StarFive JH8100 SoC | expand

Checks

Context Check Description
conchuod/vmtest-for-next-PR success PR summary
conchuod/patch-6-test-1 success .github/scripts/patches/tests/build_rv32_defconfig.sh
conchuod/patch-6-test-2 success .github/scripts/patches/tests/build_rv64_clang_allmodconfig.sh
conchuod/patch-6-test-3 success .github/scripts/patches/tests/build_rv64_gcc_allmodconfig.sh
conchuod/patch-6-test-4 success .github/scripts/patches/tests/build_rv64_nommu_k210_defconfig.sh
conchuod/patch-6-test-5 success .github/scripts/patches/tests/build_rv64_nommu_virt_defconfig.sh
conchuod/patch-6-test-6 warning .github/scripts/patches/tests/checkpatch.sh
conchuod/patch-6-test-7 success .github/scripts/patches/tests/dtb_warn_rv64.sh
conchuod/patch-6-test-8 success .github/scripts/patches/tests/header_inline.sh
conchuod/patch-6-test-9 success .github/scripts/patches/tests/kdoc.sh
conchuod/patch-6-test-10 success .github/scripts/patches/tests/module_param.sh
conchuod/patch-6-test-11 success .github/scripts/patches/tests/verify_fixes.sh
conchuod/patch-6-test-12 success .github/scripts/patches/tests/verify_signedoff.sh

Commit Message

Sia Jee Heng Dec. 1, 2023, 12:14 p.m. UTC
Add initial device tree for the StarFive JH8100 RISC-V SoC.

Signed-off-by: Sia Jee Heng <jeeheng.sia@starfivetech.com>
Reviewed-by: Ley Foon Tan <leyfoon.tan@starfivetech.com>
---
 arch/riscv/boot/dts/starfive/Makefile       |   2 +
 arch/riscv/boot/dts/starfive/jh8100-evb.dts |  28 ++
 arch/riscv/boot/dts/starfive/jh8100.dtsi    | 378 ++++++++++++++++++++
 3 files changed, 408 insertions(+)
 create mode 100644 arch/riscv/boot/dts/starfive/jh8100-evb.dts
 create mode 100644 arch/riscv/boot/dts/starfive/jh8100.dtsi

Comments

Shengyu Qu Dec. 8, 2023, 12:08 p.m. UTC | #1
Hello Sia,

Does the dubhe-80 cores actually support vector? Or vector support

doesn't exist on actual silicon?

Best regards,

Shengyu

> Add initial device tree for the StarFive JH8100 RISC-V SoC.
>
> Signed-off-by: Sia Jee Heng <jeeheng.sia@starfivetech.com>
> Reviewed-by: Ley Foon Tan <leyfoon.tan@starfivetech.com>
> ---
>   arch/riscv/boot/dts/starfive/Makefile       |   2 +
>   arch/riscv/boot/dts/starfive/jh8100-evb.dts |  28 ++
>   arch/riscv/boot/dts/starfive/jh8100.dtsi    | 378 ++++++++++++++++++++
>   3 files changed, 408 insertions(+)
>   create mode 100644 arch/riscv/boot/dts/starfive/jh8100-evb.dts
>   create mode 100644 arch/riscv/boot/dts/starfive/jh8100.dtsi
>
> diff --git a/arch/riscv/boot/dts/starfive/Makefile b/arch/riscv/boot/dts/starfive/Makefile
> index 0141504c0f5c..ef5c7331c7ec 100644
> --- a/arch/riscv/boot/dts/starfive/Makefile
> +++ b/arch/riscv/boot/dts/starfive/Makefile
> @@ -10,3 +10,5 @@ dtb-$(CONFIG_ARCH_STARFIVE) += jh7100-starfive-visionfive-v1.dtb
>   
>   dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-starfive-visionfive-2-v1.2a.dtb
>   dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-starfive-visionfive-2-v1.3b.dtb
> +
> +dtb-$(CONFIG_ARCH_STARFIVE) += jh8100-evb.dtb
> diff --git a/arch/riscv/boot/dts/starfive/jh8100-evb.dts b/arch/riscv/boot/dts/starfive/jh8100-evb.dts
> new file mode 100644
> index 000000000000..c16bc25d8988
> --- /dev/null
> +++ b/arch/riscv/boot/dts/starfive/jh8100-evb.dts
> @@ -0,0 +1,28 @@
> +// SPDX-License-Identifier: GPL-2.0 OR MIT
> +/*
> + * Copyright (c) 2021-2023 StarFive Technology Co., Ltd.
> + */
> +
> +#include "jh8100.dtsi"
> +
> +/ {
> +	model = "StarFive JH8100 EVB";
> +	compatible = "starfive,jh8100-evb", "starfive,jh8100";
> +
> +	aliases {
> +		serial0 = &uart0;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	memory@40000000 {
> +		device_type = "memory";
> +		reg = <0x0 0x40000000 0x2 0x00000000>;
> +	};
> +};
> +
> +&uart0 {
> +	status = "okay";
> +};
> diff --git a/arch/riscv/boot/dts/starfive/jh8100.dtsi b/arch/riscv/boot/dts/starfive/jh8100.dtsi
> new file mode 100644
> index 000000000000..f26aff5c1ddf
> --- /dev/null
> +++ b/arch/riscv/boot/dts/starfive/jh8100.dtsi
> @@ -0,0 +1,378 @@
> +// SPDX-License-Identifier: GPL-2.0 OR MIT
> +/*
> + * Copyright (c) 2021-2023 StarFive Technology Co., Ltd.
> + */
> +
> +/dts-v1/;
> +
> +/ {
> +	compatible = "starfive,jh8100";
> +	#address-cells = <2>;
> +	#size-cells = <2>;
> +
> +	cpus {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		timebase-frequency = <4000000>;
> +
> +		cpu0: cpu@0 {
> +			compatible = "starfive,dubhe-80", "riscv";
> +			capacity-dmips-mhz = <768>;
> +			d-cache-block-size = <64>;
> +			d-cache-sets = <512>;
> +			d-cache-size = <32768>;
> +			d-tlb-sets = <1>;
> +			d-tlb-size = <48>;
> +			device_type = "cpu";
> +			i-cache-block-size = <64>;
> +			i-cache-sets = <512>;
> +			i-cache-size = <32768>;
> +			i-tlb-sets = <1>;
> +			i-tlb-size = <48>;
> +			mmu-type = "riscv,sv48";
> +			next-level-cache = <&l2c0>;
> +			reg = <0x0>;
> +			riscv,isa = "rv64imafdch";
> +			riscv,isa-base = "rv64i";
> +			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
> +					       "zicsr", "zifencei", "zihintpause", "zihpm",
> +					       "zba", "zbb", "zbs", "sscofpmf";
> +			tlb-split;
> +
> +			cpu0_intc: interrupt-controller {
> +				compatible = "riscv,cpu-intc";
> +				interrupt-controller;
> +				#interrupt-cells = <1>;
> +			};
> +		};
> +
> +		cpu1: cpu@1 {
> +			compatible = "starfive,dubhe-80", "riscv";
> +			capacity-dmips-mhz = <768>;
> +			d-cache-block-size = <64>;
> +			d-cache-sets = <512>;
> +			d-cache-size = <32768>;
> +			d-tlb-sets = <1>;
> +			d-tlb-size = <48>;
> +			device_type = "cpu";
> +			i-cache-block-size = <64>;
> +			i-cache-sets = <512>;
> +			i-cache-size = <32768>;
> +			i-tlb-sets = <1>;
> +			i-tlb-size = <48>;
> +			mmu-type = "riscv,sv48";
> +			next-level-cache = <&l2c1>;
> +			reg = <0x1>;
> +			riscv,isa = "rv64imafdch";
> +			riscv,isa-base = "rv64i";
> +			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
> +					       "zicsr", "zifencei", "zihintpause", "zihpm",
> +					       "zba", "zbb", "zbs", "sscofpmf";
> +			tlb-split;
> +
> +			cpu1_intc: interrupt-controller {
> +				compatible = "riscv,cpu-intc";
> +				interrupt-controller;
> +				#interrupt-cells = <1>;
> +			};
> +		};
> +
> +		cpu2: cpu@2 {
> +			compatible = "starfive,dubhe-90", "riscv";
> +			capacity-dmips-mhz = <1024>;
> +			d-cache-block-size = <64>;
> +			d-cache-sets = <1024>;
> +			d-cache-size = <65536>;
> +			d-tlb-sets = <1>;
> +			d-tlb-size = <48>;
> +			device_type = "cpu";
> +			i-cache-block-size = <64>;
> +			i-cache-sets = <1024>;
> +			i-cache-size = <65536>;
> +			i-tlb-sets = <1>;
> +			i-tlb-size = <48>;
> +			mmu-type = "riscv,sv48";
> +			next-level-cache = <&l2c2>;
> +			reg = <0x2>;
> +			riscv,isa = "rv64imafdch";
> +			riscv,isa-base = "rv64i";
> +			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
> +					       "zicsr", "zifencei", "zihintpause", "zihpm",
> +					       "zba", "zbb", "zbs", "sscofpmf";
> +			tlb-split;
> +
> +			cpu2_intc: interrupt-controller {
> +				compatible = "riscv,cpu-intc";
> +				interrupt-controller;
> +				#interrupt-cells = <1>;
> +			};
> +		};
> +
> +		cpu3: cpu@3 {
> +			compatible = "starfive,dubhe-90", "riscv";
> +			capacity-dmips-mhz = <1024>;
> +			d-cache-block-size = <64>;
> +			d-cache-sets = <1024>;
> +			d-cache-size = <65536>;
> +			d-tlb-sets = <1>;
> +			d-tlb-size = <48>;
> +			device_type = "cpu";
> +			i-cache-block-size = <64>;
> +			i-cache-sets = <1024>;
> +			i-cache-size = <65536>;
> +			i-tlb-sets = <1>;
> +			i-tlb-size = <48>;
> +			mmu-type = "riscv,sv48";
> +			next-level-cache = <&l2c2>;
> +			reg = <0x3>;
> +			riscv,isa = "rv64imafdch";
> +			riscv,isa-base = "rv64i";
> +			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
> +					       "zicsr", "zifencei", "zihintpause", "zihpm",
> +					       "zba", "zbb", "zbs", "sscofpmf";
> +			tlb-split;
> +
> +			cpu3_intc: interrupt-controller {
> +				compatible = "riscv,cpu-intc";
> +				interrupt-controller;
> +				#interrupt-cells = <1>;
> +			};
> +		};
> +
> +		cpu4: cpu@4 {
> +			compatible = "starfive,dubhe-90", "riscv";
> +			capacity-dmips-mhz = <1024>;
> +			d-cache-block-size = <64>;
> +			d-cache-sets = <1024>;
> +			d-cache-size = <65536>;
> +			d-tlb-sets = <1>;
> +			d-tlb-size = <48>;
> +			device_type = "cpu";
> +			i-cache-block-size = <64>;
> +			i-cache-sets = <1024>;
> +			i-cache-size = <65536>;
> +			i-tlb-sets = <1>;
> +			i-tlb-size = <48>;
> +			mmu-type = "riscv,sv48";
> +			next-level-cache = <&l2c2>;
> +			reg = <0x4>;
> +			riscv,isa = "rv64imafdch";
> +			riscv,isa-base = "rv64i";
> +			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
> +					       "zicsr", "zifencei", "zihintpause", "zihpm",
> +					       "zba", "zbb", "zbs", "sscofpmf";
> +			tlb-split;
> +
> +			cpu4_intc: interrupt-controller {
> +				compatible = "riscv,cpu-intc";
> +				interrupt-controller;
> +				#interrupt-cells = <1>;
> +			};
> +		};
> +
> +		cpu5: cpu@5 {
> +			compatible = "starfive,dubhe-90", "riscv";
> +			capacity-dmips-mhz = <1024>;
> +			d-cache-block-size = <64>;
> +			d-cache-sets = <1024>;
> +			d-cache-size = <65536>;
> +			d-tlb-sets = <1>;
> +			d-tlb-size = <48>;
> +			device_type = "cpu";
> +			i-cache-block-size = <64>;
> +			i-cache-sets = <1024>;
> +			i-cache-size = <65536>;
> +			i-tlb-sets = <1>;
> +			i-tlb-size = <48>;
> +			mmu-type = "riscv,sv48";
> +			next-level-cache = <&l2c2>;
> +			reg = <0x5>;
> +			riscv,isa = "rv64imafdch";
> +			riscv,isa-base = "rv64i";
> +			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
> +					       "zicsr", "zifencei", "zihintpause", "zihpm",
> +					       "zba", "zbb", "zbs", "sscofpmf";
> +			tlb-split;
> +
> +			cpu5_intc: interrupt-controller {
> +				compatible = "riscv,cpu-intc";
> +				interrupt-controller;
> +				#interrupt-cells = <1>;
> +			};
> +		};
> +
> +		cpu-map {
> +			cluster0 {
> +				core0 {
> +					cpu = <&cpu0>;
> +				};
> +			};
> +
> +			cluster1 {
> +				core0 {
> +					cpu = <&cpu1>;
> +				};
> +			};
> +
> +			cluster2 {
> +				core0 {
> +					cpu = <&cpu2>;
> +				};
> +
> +				core1 {
> +					cpu = <&cpu3>;
> +				};
> +
> +				core2 {
> +					cpu = <&cpu4>;
> +				};
> +
> +				core3 {
> +					cpu = <&cpu5>;
> +				};
> +			};
> +		};
> +
> +		l2c0: cache-controller-0 {
> +			compatible = "cache";
> +			cache-block-size = <64>;
> +			cache-level = <2>;
> +			cache-sets = <512>;
> +			cache-size = <0x40000>;
> +			cache-unified;
> +			next-level-cache = <&l3_cache>;
> +		};
> +
> +		l2c1: cache-controller-1 {
> +			compatible = "cache";
> +			cache-block-size = <64>;
> +			cache-level = <2>;
> +			cache-sets = <512>;
> +			cache-size = <0x40000>;
> +			cache-unified;
> +			next-level-cache = <&l3_cache>;
> +		};
> +
> +		l2c2: cache-controller-2{
> +			compatible = "cache";
> +			cache-block-size = <64>;
> +			cache-level = <2>;
> +			cache-sets = <4096>;
> +			cache-size = <0x200000>;
> +			cache-unified;
> +			next-level-cache = <&l3_cache>;
> +		};
> +
> +		l3_cache: cache-controller-3 {
> +			compatible = "cache";
> +			cache-block-size = <64>;
> +			cache-level = <3>;
> +			cache-sets = <8192>;
> +			cache-size = <0x400000>;
> +			cache-unified;
> +		};
> +	};
> +
> +	clk_uart: clk-uart {
> +		compatible = "fixed-clock"; /* Initial clock handler for UART */
> +		#clock-cells = <0>;
> +		clock-frequency = <24000000>;
> +	};
> +
> +	soc {
> +		compatible = "simple-bus";
> +		interrupt-parent = <&plic>;
> +		#address-cells = <2>;
> +		#size-cells = <2>;
> +		ranges;
> +
> +		clint: clint@2000000 {
> +			compatible = "starfive,jh8100-clint", "sifive,clint0";
> +			reg = <0x0 0x2000000 0x0 0x10000>;
> +			interrupts-extended = <&cpu0_intc 3>, <&cpu0_intc 7>,
> +					      <&cpu1_intc 3>, <&cpu1_intc 7>,
> +					      <&cpu2_intc 3>, <&cpu2_intc 7>,
> +					      <&cpu3_intc 3>, <&cpu3_intc 7>,
> +					      <&cpu4_intc 3>, <&cpu4_intc 7>,
> +					      <&cpu5_intc 3>, <&cpu5_intc 7>;
> +		};
> +
> +		plic: interrupt-controller@c000000 {
> +			#interrupt-cells = <1>;
> +			#address-cells = <0>;
> +			compatible = "starfive,jh8100-plic", "sifive,plic-1.0.0";
> +			reg = <0x0 0x0c000000 0x0 0x4000000>;
> +			riscv,ndev = <200>;
> +			interrupt-controller;
> +			interrupts-extended = <&cpu0_intc 11>, <&cpu1_intc 11>,
> +					      <&cpu0_intc 9>, <&cpu1_intc 9>,
> +					      <&cpu2_intc 11>, <&cpu3_intc 11>,
> +					      <&cpu4_intc 11>, <&cpu5_intc 11>,
> +					      <&cpu2_intc 9>, <&cpu3_intc 9>,
> +					      <&cpu4_intc 9>, <&cpu5_intc 9>;
> +		};
> +
> +		uart0: serial@12160000 {
> +			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
> +			reg = <0x0 0x12160000 0x0 0x10000>;
> +			clock-names = "uart_clk", "pclk";
> +			clocks = <&clk_uart>, <&clk_uart>;
> +			interrupts = <67>;
> +			status = "disabled";
> +		};
> +
> +		uart1: serial@12170000  {
> +			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
> +			reg = <0x0 0x12170000 0x0 0x10000>;
> +			clock-names = "uart_clk", "pclk";
> +			clocks = <&clk_uart>, <&clk_uart>;
> +			interrupts = <68>;
> +			status = "disabled";
> +		};
> +
> +		uart2: serial@12180000  {
> +			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
> +			reg = <0x0 0x12180000 0x0 0x10000>;
> +			clock-names = "uart_clk", "pclk";
> +			clocks = <&clk_uart>, <&clk_uart>;
> +			interrupts = <69>;
> +			status = "disabled";
> +		};
> +
> +		uart3: serial@12190000  {
> +			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
> +			reg = <0x0 0x12190000 0x0 0x10000>;
> +			clock-names = "uart_clk", "pclk";
> +			clocks = <&clk_uart>, <&clk_uart>;
> +			interrupts = <70>;
> +			status = "disabled";
> +		};
> +
> +		uart4: serial@121a0000  {
> +			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
> +			reg = <0x0 0x121a0000 0x0 0x10000>;
> +			clock-names = "uart_clk", "pclk";
> +			clocks = <&clk_uart>, <&clk_uart>;
> +			interrupts = <71>;
> +			status = "disabled";
> +		};
> +
> +		uart5: serial@127d0000  {
> +			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
> +			reg = <0x0 0x127d0000 0x0 0x10000>;
> +			clock-names = "uart_clk", "pclk";
> +			clocks = <&clk_uart>, <&clk_uart>;
> +			interrupts = <72>;
> +			status = "disabled";
> +		};
> +
> +		uart6: serial@127e0000  {
> +			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
> +			reg = <0x0 0x127e0000 0x0 0x10000>;
> +			clock-names = "uart_clk", "pclk";
> +			clocks = <&clk_uart>, <&clk_uart>;
> +			interrupts = <73>;
> +			status = "disabled";
> +		};
> +	};
> +};
Emil Renner Berthing Dec. 8, 2023, 4:05 p.m. UTC | #2
Sia Jee Heng wrote:
> Add initial device tree for the StarFive JH8100 RISC-V SoC.
>
> Signed-off-by: Sia Jee Heng <jeeheng.sia@starfivetech.com>
> Reviewed-by: Ley Foon Tan <leyfoon.tan@starfivetech.com>

Looks good to me, thanks.

Acked-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Sia Jee Heng Dec. 11, 2023, 1:38 a.m. UTC | #3
> -----Original Message-----
> From: Shengyu Qu <wiagn233@outlook.com>
> Sent: Friday, December 8, 2023 8:09 PM
> To: JeeHeng Sia <jeeheng.sia@starfivetech.com>; kernel@esmil.dk; robh+dt@kernel.org; krzysztof.kozlowski+dt@linaro.org;
> krzk@kernel.org; conor+dt@kernel.org; paul.walmsley@sifive.com; palmer@dabbelt.com; aou@eecs.berkeley.edu;
> daniel.lezcano@linaro.org; tglx@linutronix.de; conor@kernel.org; anup@brainfault.org; gregkh@linuxfoundation.org;
> jirislaby@kernel.org; michal.simek@amd.com; Michael Zhu <michael.zhu@starfivetech.com>; drew@beagleboard.org
> Cc: wiagn233@outlook.com; devicetree@vger.kernel.org; linux-riscv@lists.infradead.org; linux-kernel@vger.kernel.org; Leyfoon Tan
> <leyfoon.tan@starfivetech.com>
> Subject: Re: [PATCH v3 6/6] riscv: dts: starfive: Add initial StarFive JH8100 device tree
> 
> Hello Sia,
Hi Shengyu
> 
> Does the dubhe-80 cores actually support vector? Or vector support
> 
> doesn't exist on actual silicon?
We don't have a use case for vector application in JH8100
> 
> Best regards,
> 
> Shengyu
> 
> > Add initial device tree for the StarFive JH8100 RISC-V SoC.
> >
> > Signed-off-by: Sia Jee Heng <jeeheng.sia@starfivetech.com>
> > Reviewed-by: Ley Foon Tan <leyfoon.tan@starfivetech.com>
> > ---
> >   arch/riscv/boot/dts/starfive/Makefile       |   2 +
> >   arch/riscv/boot/dts/starfive/jh8100-evb.dts |  28 ++
> >   arch/riscv/boot/dts/starfive/jh8100.dtsi    | 378 ++++++++++++++++++++
> >   3 files changed, 408 insertions(+)
> >   create mode 100644 arch/riscv/boot/dts/starfive/jh8100-evb.dts
> >   create mode 100644 arch/riscv/boot/dts/starfive/jh8100.dtsi
> >
> > diff --git a/arch/riscv/boot/dts/starfive/Makefile b/arch/riscv/boot/dts/starfive/Makefile
> > index 0141504c0f5c..ef5c7331c7ec 100644
> > --- a/arch/riscv/boot/dts/starfive/Makefile
> > +++ b/arch/riscv/boot/dts/starfive/Makefile
> > @@ -10,3 +10,5 @@ dtb-$(CONFIG_ARCH_STARFIVE) += jh7100-starfive-visionfive-v1.dtb
> >
> >   dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-starfive-visionfive-2-v1.2a.dtb
> >   dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-starfive-visionfive-2-v1.3b.dtb
> > +
> > +dtb-$(CONFIG_ARCH_STARFIVE) += jh8100-evb.dtb
> > diff --git a/arch/riscv/boot/dts/starfive/jh8100-evb.dts b/arch/riscv/boot/dts/starfive/jh8100-evb.dts
> > new file mode 100644
> > index 000000000000..c16bc25d8988
> > --- /dev/null
> > +++ b/arch/riscv/boot/dts/starfive/jh8100-evb.dts
> > @@ -0,0 +1,28 @@
> > +// SPDX-License-Identifier: GPL-2.0 OR MIT
> > +/*
> > + * Copyright (c) 2021-2023 StarFive Technology Co., Ltd.
> > + */
> > +
> > +#include "jh8100.dtsi"
> > +
> > +/ {
> > +	model = "StarFive JH8100 EVB";
> > +	compatible = "starfive,jh8100-evb", "starfive,jh8100";
> > +
> > +	aliases {
> > +		serial0 = &uart0;
> > +	};
> > +
> > +	chosen {
> > +		stdout-path = "serial0:115200n8";
> > +	};
> > +
> > +	memory@40000000 {
> > +		device_type = "memory";
> > +		reg = <0x0 0x40000000 0x2 0x00000000>;
> > +	};
> > +};
> > +
> > +&uart0 {
> > +	status = "okay";
> > +};
> > diff --git a/arch/riscv/boot/dts/starfive/jh8100.dtsi b/arch/riscv/boot/dts/starfive/jh8100.dtsi
> > new file mode 100644
> > index 000000000000..f26aff5c1ddf
> > --- /dev/null
> > +++ b/arch/riscv/boot/dts/starfive/jh8100.dtsi
> > @@ -0,0 +1,378 @@
> > +// SPDX-License-Identifier: GPL-2.0 OR MIT
> > +/*
> > + * Copyright (c) 2021-2023 StarFive Technology Co., Ltd.
> > + */
> > +
> > +/dts-v1/;
> > +
> > +/ {
> > +	compatible = "starfive,jh8100";
> > +	#address-cells = <2>;
> > +	#size-cells = <2>;
> > +
> > +	cpus {
> > +		#address-cells = <1>;
> > +		#size-cells = <0>;
> > +		timebase-frequency = <4000000>;
> > +
> > +		cpu0: cpu@0 {
> > +			compatible = "starfive,dubhe-80", "riscv";
> > +			capacity-dmips-mhz = <768>;
> > +			d-cache-block-size = <64>;
> > +			d-cache-sets = <512>;
> > +			d-cache-size = <32768>;
> > +			d-tlb-sets = <1>;
> > +			d-tlb-size = <48>;
> > +			device_type = "cpu";
> > +			i-cache-block-size = <64>;
> > +			i-cache-sets = <512>;
> > +			i-cache-size = <32768>;
> > +			i-tlb-sets = <1>;
> > +			i-tlb-size = <48>;
> > +			mmu-type = "riscv,sv48";
> > +			next-level-cache = <&l2c0>;
> > +			reg = <0x0>;
> > +			riscv,isa = "rv64imafdch";
> > +			riscv,isa-base = "rv64i";
> > +			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
> > +					       "zicsr", "zifencei", "zihintpause", "zihpm",
> > +					       "zba", "zbb", "zbs", "sscofpmf";
> > +			tlb-split;
> > +
> > +			cpu0_intc: interrupt-controller {
> > +				compatible = "riscv,cpu-intc";
> > +				interrupt-controller;
> > +				#interrupt-cells = <1>;
> > +			};
> > +		};
> > +
> > +		cpu1: cpu@1 {
> > +			compatible = "starfive,dubhe-80", "riscv";
> > +			capacity-dmips-mhz = <768>;
> > +			d-cache-block-size = <64>;
> > +			d-cache-sets = <512>;
> > +			d-cache-size = <32768>;
> > +			d-tlb-sets = <1>;
> > +			d-tlb-size = <48>;
> > +			device_type = "cpu";
> > +			i-cache-block-size = <64>;
> > +			i-cache-sets = <512>;
> > +			i-cache-size = <32768>;
> > +			i-tlb-sets = <1>;
> > +			i-tlb-size = <48>;
> > +			mmu-type = "riscv,sv48";
> > +			next-level-cache = <&l2c1>;
> > +			reg = <0x1>;
> > +			riscv,isa = "rv64imafdch";
> > +			riscv,isa-base = "rv64i";
> > +			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
> > +					       "zicsr", "zifencei", "zihintpause", "zihpm",
> > +					       "zba", "zbb", "zbs", "sscofpmf";
> > +			tlb-split;
> > +
> > +			cpu1_intc: interrupt-controller {
> > +				compatible = "riscv,cpu-intc";
> > +				interrupt-controller;
> > +				#interrupt-cells = <1>;
> > +			};
> > +		};
> > +
> > +		cpu2: cpu@2 {
> > +			compatible = "starfive,dubhe-90", "riscv";
> > +			capacity-dmips-mhz = <1024>;
> > +			d-cache-block-size = <64>;
> > +			d-cache-sets = <1024>;
> > +			d-cache-size = <65536>;
> > +			d-tlb-sets = <1>;
> > +			d-tlb-size = <48>;
> > +			device_type = "cpu";
> > +			i-cache-block-size = <64>;
> > +			i-cache-sets = <1024>;
> > +			i-cache-size = <65536>;
> > +			i-tlb-sets = <1>;
> > +			i-tlb-size = <48>;
> > +			mmu-type = "riscv,sv48";
> > +			next-level-cache = <&l2c2>;
> > +			reg = <0x2>;
> > +			riscv,isa = "rv64imafdch";
> > +			riscv,isa-base = "rv64i";
> > +			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
> > +					       "zicsr", "zifencei", "zihintpause", "zihpm",
> > +					       "zba", "zbb", "zbs", "sscofpmf";
> > +			tlb-split;
> > +
> > +			cpu2_intc: interrupt-controller {
> > +				compatible = "riscv,cpu-intc";
> > +				interrupt-controller;
> > +				#interrupt-cells = <1>;
> > +			};
> > +		};
> > +
> > +		cpu3: cpu@3 {
> > +			compatible = "starfive,dubhe-90", "riscv";
> > +			capacity-dmips-mhz = <1024>;
> > +			d-cache-block-size = <64>;
> > +			d-cache-sets = <1024>;
> > +			d-cache-size = <65536>;
> > +			d-tlb-sets = <1>;
> > +			d-tlb-size = <48>;
> > +			device_type = "cpu";
> > +			i-cache-block-size = <64>;
> > +			i-cache-sets = <1024>;
> > +			i-cache-size = <65536>;
> > +			i-tlb-sets = <1>;
> > +			i-tlb-size = <48>;
> > +			mmu-type = "riscv,sv48";
> > +			next-level-cache = <&l2c2>;
> > +			reg = <0x3>;
> > +			riscv,isa = "rv64imafdch";
> > +			riscv,isa-base = "rv64i";
> > +			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
> > +					       "zicsr", "zifencei", "zihintpause", "zihpm",
> > +					       "zba", "zbb", "zbs", "sscofpmf";
> > +			tlb-split;
> > +
> > +			cpu3_intc: interrupt-controller {
> > +				compatible = "riscv,cpu-intc";
> > +				interrupt-controller;
> > +				#interrupt-cells = <1>;
> > +			};
> > +		};
> > +
> > +		cpu4: cpu@4 {
> > +			compatible = "starfive,dubhe-90", "riscv";
> > +			capacity-dmips-mhz = <1024>;
> > +			d-cache-block-size = <64>;
> > +			d-cache-sets = <1024>;
> > +			d-cache-size = <65536>;
> > +			d-tlb-sets = <1>;
> > +			d-tlb-size = <48>;
> > +			device_type = "cpu";
> > +			i-cache-block-size = <64>;
> > +			i-cache-sets = <1024>;
> > +			i-cache-size = <65536>;
> > +			i-tlb-sets = <1>;
> > +			i-tlb-size = <48>;
> > +			mmu-type = "riscv,sv48";
> > +			next-level-cache = <&l2c2>;
> > +			reg = <0x4>;
> > +			riscv,isa = "rv64imafdch";
> > +			riscv,isa-base = "rv64i";
> > +			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
> > +					       "zicsr", "zifencei", "zihintpause", "zihpm",
> > +					       "zba", "zbb", "zbs", "sscofpmf";
> > +			tlb-split;
> > +
> > +			cpu4_intc: interrupt-controller {
> > +				compatible = "riscv,cpu-intc";
> > +				interrupt-controller;
> > +				#interrupt-cells = <1>;
> > +			};
> > +		};
> > +
> > +		cpu5: cpu@5 {
> > +			compatible = "starfive,dubhe-90", "riscv";
> > +			capacity-dmips-mhz = <1024>;
> > +			d-cache-block-size = <64>;
> > +			d-cache-sets = <1024>;
> > +			d-cache-size = <65536>;
> > +			d-tlb-sets = <1>;
> > +			d-tlb-size = <48>;
> > +			device_type = "cpu";
> > +			i-cache-block-size = <64>;
> > +			i-cache-sets = <1024>;
> > +			i-cache-size = <65536>;
> > +			i-tlb-sets = <1>;
> > +			i-tlb-size = <48>;
> > +			mmu-type = "riscv,sv48";
> > +			next-level-cache = <&l2c2>;
> > +			reg = <0x5>;
> > +			riscv,isa = "rv64imafdch";
> > +			riscv,isa-base = "rv64i";
> > +			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
> > +					       "zicsr", "zifencei", "zihintpause", "zihpm",
> > +					       "zba", "zbb", "zbs", "sscofpmf";
> > +			tlb-split;
> > +
> > +			cpu5_intc: interrupt-controller {
> > +				compatible = "riscv,cpu-intc";
> > +				interrupt-controller;
> > +				#interrupt-cells = <1>;
> > +			};
> > +		};
> > +
> > +		cpu-map {
> > +			cluster0 {
> > +				core0 {
> > +					cpu = <&cpu0>;
> > +				};
> > +			};
> > +
> > +			cluster1 {
> > +				core0 {
> > +					cpu = <&cpu1>;
> > +				};
> > +			};
> > +
> > +			cluster2 {
> > +				core0 {
> > +					cpu = <&cpu2>;
> > +				};
> > +
> > +				core1 {
> > +					cpu = <&cpu3>;
> > +				};
> > +
> > +				core2 {
> > +					cpu = <&cpu4>;
> > +				};
> > +
> > +				core3 {
> > +					cpu = <&cpu5>;
> > +				};
> > +			};
> > +		};
> > +
> > +		l2c0: cache-controller-0 {
> > +			compatible = "cache";
> > +			cache-block-size = <64>;
> > +			cache-level = <2>;
> > +			cache-sets = <512>;
> > +			cache-size = <0x40000>;
> > +			cache-unified;
> > +			next-level-cache = <&l3_cache>;
> > +		};
> > +
> > +		l2c1: cache-controller-1 {
> > +			compatible = "cache";
> > +			cache-block-size = <64>;
> > +			cache-level = <2>;
> > +			cache-sets = <512>;
> > +			cache-size = <0x40000>;
> > +			cache-unified;
> > +			next-level-cache = <&l3_cache>;
> > +		};
> > +
> > +		l2c2: cache-controller-2{
> > +			compatible = "cache";
> > +			cache-block-size = <64>;
> > +			cache-level = <2>;
> > +			cache-sets = <4096>;
> > +			cache-size = <0x200000>;
> > +			cache-unified;
> > +			next-level-cache = <&l3_cache>;
> > +		};
> > +
> > +		l3_cache: cache-controller-3 {
> > +			compatible = "cache";
> > +			cache-block-size = <64>;
> > +			cache-level = <3>;
> > +			cache-sets = <8192>;
> > +			cache-size = <0x400000>;
> > +			cache-unified;
> > +		};
> > +	};
> > +
> > +	clk_uart: clk-uart {
> > +		compatible = "fixed-clock"; /* Initial clock handler for UART */
> > +		#clock-cells = <0>;
> > +		clock-frequency = <24000000>;
> > +	};
> > +
> > +	soc {
> > +		compatible = "simple-bus";
> > +		interrupt-parent = <&plic>;
> > +		#address-cells = <2>;
> > +		#size-cells = <2>;
> > +		ranges;
> > +
> > +		clint: clint@2000000 {
> > +			compatible = "starfive,jh8100-clint", "sifive,clint0";
> > +			reg = <0x0 0x2000000 0x0 0x10000>;
> > +			interrupts-extended = <&cpu0_intc 3>, <&cpu0_intc 7>,
> > +					      <&cpu1_intc 3>, <&cpu1_intc 7>,
> > +					      <&cpu2_intc 3>, <&cpu2_intc 7>,
> > +					      <&cpu3_intc 3>, <&cpu3_intc 7>,
> > +					      <&cpu4_intc 3>, <&cpu4_intc 7>,
> > +					      <&cpu5_intc 3>, <&cpu5_intc 7>;
> > +		};
> > +
> > +		plic: interrupt-controller@c000000 {
> > +			#interrupt-cells = <1>;
> > +			#address-cells = <0>;
> > +			compatible = "starfive,jh8100-plic", "sifive,plic-1.0.0";
> > +			reg = <0x0 0x0c000000 0x0 0x4000000>;
> > +			riscv,ndev = <200>;
> > +			interrupt-controller;
> > +			interrupts-extended = <&cpu0_intc 11>, <&cpu1_intc 11>,
> > +					      <&cpu0_intc 9>, <&cpu1_intc 9>,
> > +					      <&cpu2_intc 11>, <&cpu3_intc 11>,
> > +					      <&cpu4_intc 11>, <&cpu5_intc 11>,
> > +					      <&cpu2_intc 9>, <&cpu3_intc 9>,
> > +					      <&cpu4_intc 9>, <&cpu5_intc 9>;
> > +		};
> > +
> > +		uart0: serial@12160000 {
> > +			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
> > +			reg = <0x0 0x12160000 0x0 0x10000>;
> > +			clock-names = "uart_clk", "pclk";
> > +			clocks = <&clk_uart>, <&clk_uart>;
> > +			interrupts = <67>;
> > +			status = "disabled";
> > +		};
> > +
> > +		uart1: serial@12170000  {
> > +			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
> > +			reg = <0x0 0x12170000 0x0 0x10000>;
> > +			clock-names = "uart_clk", "pclk";
> > +			clocks = <&clk_uart>, <&clk_uart>;
> > +			interrupts = <68>;
> > +			status = "disabled";
> > +		};
> > +
> > +		uart2: serial@12180000  {
> > +			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
> > +			reg = <0x0 0x12180000 0x0 0x10000>;
> > +			clock-names = "uart_clk", "pclk";
> > +			clocks = <&clk_uart>, <&clk_uart>;
> > +			interrupts = <69>;
> > +			status = "disabled";
> > +		};
> > +
> > +		uart3: serial@12190000  {
> > +			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
> > +			reg = <0x0 0x12190000 0x0 0x10000>;
> > +			clock-names = "uart_clk", "pclk";
> > +			clocks = <&clk_uart>, <&clk_uart>;
> > +			interrupts = <70>;
> > +			status = "disabled";
> > +		};
> > +
> > +		uart4: serial@121a0000  {
> > +			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
> > +			reg = <0x0 0x121a0000 0x0 0x10000>;
> > +			clock-names = "uart_clk", "pclk";
> > +			clocks = <&clk_uart>, <&clk_uart>;
> > +			interrupts = <71>;
> > +			status = "disabled";
> > +		};
> > +
> > +		uart5: serial@127d0000  {
> > +			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
> > +			reg = <0x0 0x127d0000 0x0 0x10000>;
> > +			clock-names = "uart_clk", "pclk";
> > +			clocks = <&clk_uart>, <&clk_uart>;
> > +			interrupts = <72>;
> > +			status = "disabled";
> > +		};
> > +
> > +		uart6: serial@127e0000  {
> > +			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
> > +			reg = <0x0 0x127e0000 0x0 0x10000>;
> > +			clock-names = "uart_clk", "pclk";
> > +			clocks = <&clk_uart>, <&clk_uart>;
> > +			interrupts = <73>;
> > +			status = "disabled";
> > +		};
> > +	};
> > +};
Conor Dooley Dec. 11, 2023, 7:58 a.m. UTC | #4
On Mon, Dec 11, 2023 at 01:38:06AM +0000, JeeHeng Sia wrote:
> 
> > From: Shengyu Qu <wiagn233@outlook.com>
> > Sent: Friday, December 8, 2023 8:09 PM

> > Does the dubhe-80 cores actually support vector? Or vector support
> > 
> > doesn't exist on actual silicon?

> We don't have a use case for vector application in JH8100

I am sorry, but I am not clear on what this means. Do the CPUs on
the JH8100 support vector or not?
Sia Jee Heng Dec. 11, 2023, 9:38 a.m. UTC | #5
> -----Original Message-----
> From: Conor Dooley <conor.dooley@microchip.com>
> Sent: Monday, December 11, 2023 3:59 PM
> To: JeeHeng Sia <jeeheng.sia@starfivetech.com>
> Cc: Shengyu Qu <wiagn233@outlook.com>; kernel@esmil.dk; robh+dt@kernel.org; krzysztof.kozlowski+dt@linaro.org;
> krzk@kernel.org; conor+dt@kernel.org; paul.walmsley@sifive.com; palmer@dabbelt.com; aou@eecs.berkeley.edu;
> daniel.lezcano@linaro.org; tglx@linutronix.de; conor@kernel.org; anup@brainfault.org; gregkh@linuxfoundation.org;
> jirislaby@kernel.org; michal.simek@amd.com; Michael Zhu <michael.zhu@starfivetech.com>; drew@beagleboard.org;
> devicetree@vger.kernel.org; linux-riscv@lists.infradead.org; linux-kernel@vger.kernel.org; Leyfoon Tan
> <leyfoon.tan@starfivetech.com>
> Subject: Re: [PATCH v3 6/6] riscv: dts: starfive: Add initial StarFive JH8100 device tree
> 
> On Mon, Dec 11, 2023 at 01:38:06AM +0000, JeeHeng Sia wrote:
> >
> > > From: Shengyu Qu <wiagn233@outlook.com>
> > > Sent: Friday, December 8, 2023 8:09 PM
> 
> > > Does the dubhe-80 cores actually support vector? Or vector support
> > >
> > > doesn't exist on actual silicon?
> 
> > We don't have a use case for vector application in JH8100
> 
> I am sorry, but I am not clear on what this means. Do the CPUs on
> the JH8100 support vector or not?
The JH8100 CPU does not support vector operation.
Conor Dooley Dec. 11, 2023, 5:43 p.m. UTC | #6
On Mon, Dec 11, 2023 at 09:38:03AM +0000, JeeHeng Sia wrote:
> 
> 
> > -----Original Message-----
> > From: Conor Dooley <conor.dooley@microchip.com>
> > Sent: Monday, December 11, 2023 3:59 PM
> > To: JeeHeng Sia <jeeheng.sia@starfivetech.com>
> > Cc: Shengyu Qu <wiagn233@outlook.com>; kernel@esmil.dk; robh+dt@kernel.org; krzysztof.kozlowski+dt@linaro.org;
> > krzk@kernel.org; conor+dt@kernel.org; paul.walmsley@sifive.com; palmer@dabbelt.com; aou@eecs.berkeley.edu;
> > daniel.lezcano@linaro.org; tglx@linutronix.de; conor@kernel.org; anup@brainfault.org; gregkh@linuxfoundation.org;
> > jirislaby@kernel.org; michal.simek@amd.com; Michael Zhu <michael.zhu@starfivetech.com>; drew@beagleboard.org;
> > devicetree@vger.kernel.org; linux-riscv@lists.infradead.org; linux-kernel@vger.kernel.org; Leyfoon Tan
> > <leyfoon.tan@starfivetech.com>
> > Subject: Re: [PATCH v3 6/6] riscv: dts: starfive: Add initial StarFive JH8100 device tree
> > 
> > On Mon, Dec 11, 2023 at 01:38:06AM +0000, JeeHeng Sia wrote:
> > >
> > > > From: Shengyu Qu <wiagn233@outlook.com>
> > > > Sent: Friday, December 8, 2023 8:09 PM
> > 
> > > > Does the dubhe-80 cores actually support vector? Or vector support
> > > >
> > > > doesn't exist on actual silicon?
> > 
> > > We don't have a use case for vector application in JH8100
> > 
> > I am sorry, but I am not clear on what this means. Do the CPUs on
> > the JH8100 support vector or not?
> The JH8100 CPU does not support vector operation.

Thanks for clarifiying.
Emil Renner Berthing Dec. 13, 2023, 12:39 p.m. UTC | #7
Emil Renner Berthing wrote:
> Sia Jee Heng wrote:
> > Add initial device tree for the StarFive JH8100 RISC-V SoC.
> >
> > Signed-off-by: Sia Jee Heng <jeeheng.sia@starfivetech.com>
> > Reviewed-by: Ley Foon Tan <leyfoon.tan@starfivetech.com>
>
> Looks good to me, thanks.
>
> Acked-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>

I just learned that this JH8100 is not actually a real SoC yet but just an FPGA
implementation, and no indication that that's actually a product that will be
mass produced. Hence a lot of details may change before it becomes a real
SoC/product people can buy, so let's not add this device tree yet before
everything is set in silicon.

Please consider my Acked-by abeve revoked.

Sia Jee Heng: With that said I still think it's super awesome that you're
beginning upstreaming support for your new SoCs early. I wish more SoC vendors
would follow your example.

/Emil
Sia Jee Heng Dec. 14, 2023, 12:34 a.m. UTC | #8
> -----Original Message-----
> From: Emil Renner Berthing <emil.renner.berthing@canonical.com>
> Sent: Wednesday, December 13, 2023 8:39 PM
> To: Emil Renner Berthing <emil.renner.berthing@canonical.com>; JeeHeng Sia <jeeheng.sia@starfivetech.com>; kernel@esmil.dk;
> robh+dt@kernel.org; krzysztof.kozlowski+dt@linaro.org; krzk@kernel.org; conor+dt@kernel.org; paul.walmsley@sifive.com;
> palmer@dabbelt.com; aou@eecs.berkeley.edu; daniel.lezcano@linaro.org; tglx@linutronix.de; conor@kernel.org;
> anup@brainfault.org; gregkh@linuxfoundation.org; jirislaby@kernel.org; michal.simek@amd.com; Michael Zhu
> <michael.zhu@starfivetech.com>; drew@beagleboard.org
> Cc: devicetree@vger.kernel.org; linux-riscv@lists.infradead.org; linux-kernel@vger.kernel.org; Leyfoon Tan
> <leyfoon.tan@starfivetech.com>
> Subject: Re: [PATCH v3 6/6] riscv: dts: starfive: Add initial StarFive JH8100 device tree
> 
> Emil Renner Berthing wrote:
> > Sia Jee Heng wrote:
> > > Add initial device tree for the StarFive JH8100 RISC-V SoC.
> > >
> > > Signed-off-by: Sia Jee Heng <jeeheng.sia@starfivetech.com>
> > > Reviewed-by: Ley Foon Tan <leyfoon.tan@starfivetech.com>
> >
> > Looks good to me, thanks.
> >
> > Acked-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
> 
> I just learned that this JH8100 is not actually a real SoC yet but just an FPGA
> implementation, and no indication that that's actually a product that will be
> mass produced. Hence a lot of details may change before it becomes a real
> SoC/product people can buy, so let's not add this device tree yet before
> everything is set in silicon.
> 
> Please consider my Acked-by abeve revoked.
> 
> Sia Jee Heng: With that said I still think it's super awesome that you're
> beginning upstreaming support for your new SoCs early. I wish more SoC vendors
> would follow your example.
Hi Emil, I am not sure what you mean. We verified on FPGA & Emulator, and the logic
is pretty much close to the real silicon. I did mention that in the cover letter as well.
I am new to Linux, so I am wondering if there is a Linux upstream guideline mentioning
that pre-silicon software is not allowed to upstream? Hope there is an updated Linux
upstream guideline that benefit other vendors.
> 
> /Emil
diff mbox series

Patch

diff --git a/arch/riscv/boot/dts/starfive/Makefile b/arch/riscv/boot/dts/starfive/Makefile
index 0141504c0f5c..ef5c7331c7ec 100644
--- a/arch/riscv/boot/dts/starfive/Makefile
+++ b/arch/riscv/boot/dts/starfive/Makefile
@@ -10,3 +10,5 @@  dtb-$(CONFIG_ARCH_STARFIVE) += jh7100-starfive-visionfive-v1.dtb
 
 dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-starfive-visionfive-2-v1.2a.dtb
 dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-starfive-visionfive-2-v1.3b.dtb
+
+dtb-$(CONFIG_ARCH_STARFIVE) += jh8100-evb.dtb
diff --git a/arch/riscv/boot/dts/starfive/jh8100-evb.dts b/arch/riscv/boot/dts/starfive/jh8100-evb.dts
new file mode 100644
index 000000000000..c16bc25d8988
--- /dev/null
+++ b/arch/riscv/boot/dts/starfive/jh8100-evb.dts
@@ -0,0 +1,28 @@ 
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (c) 2021-2023 StarFive Technology Co., Ltd.
+ */
+
+#include "jh8100.dtsi"
+
+/ {
+	model = "StarFive JH8100 EVB";
+	compatible = "starfive,jh8100-evb", "starfive,jh8100";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x0 0x40000000 0x2 0x00000000>;
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
diff --git a/arch/riscv/boot/dts/starfive/jh8100.dtsi b/arch/riscv/boot/dts/starfive/jh8100.dtsi
new file mode 100644
index 000000000000..f26aff5c1ddf
--- /dev/null
+++ b/arch/riscv/boot/dts/starfive/jh8100.dtsi
@@ -0,0 +1,378 @@ 
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (c) 2021-2023 StarFive Technology Co., Ltd.
+ */
+
+/dts-v1/;
+
+/ {
+	compatible = "starfive,jh8100";
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		timebase-frequency = <4000000>;
+
+		cpu0: cpu@0 {
+			compatible = "starfive,dubhe-80", "riscv";
+			capacity-dmips-mhz = <768>;
+			d-cache-block-size = <64>;
+			d-cache-sets = <512>;
+			d-cache-size = <32768>;
+			d-tlb-sets = <1>;
+			d-tlb-size = <48>;
+			device_type = "cpu";
+			i-cache-block-size = <64>;
+			i-cache-sets = <512>;
+			i-cache-size = <32768>;
+			i-tlb-sets = <1>;
+			i-tlb-size = <48>;
+			mmu-type = "riscv,sv48";
+			next-level-cache = <&l2c0>;
+			reg = <0x0>;
+			riscv,isa = "rv64imafdch";
+			riscv,isa-base = "rv64i";
+			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
+					       "zicsr", "zifencei", "zihintpause", "zihpm",
+					       "zba", "zbb", "zbs", "sscofpmf";
+			tlb-split;
+
+			cpu0_intc: interrupt-controller {
+				compatible = "riscv,cpu-intc";
+				interrupt-controller;
+				#interrupt-cells = <1>;
+			};
+		};
+
+		cpu1: cpu@1 {
+			compatible = "starfive,dubhe-80", "riscv";
+			capacity-dmips-mhz = <768>;
+			d-cache-block-size = <64>;
+			d-cache-sets = <512>;
+			d-cache-size = <32768>;
+			d-tlb-sets = <1>;
+			d-tlb-size = <48>;
+			device_type = "cpu";
+			i-cache-block-size = <64>;
+			i-cache-sets = <512>;
+			i-cache-size = <32768>;
+			i-tlb-sets = <1>;
+			i-tlb-size = <48>;
+			mmu-type = "riscv,sv48";
+			next-level-cache = <&l2c1>;
+			reg = <0x1>;
+			riscv,isa = "rv64imafdch";
+			riscv,isa-base = "rv64i";
+			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
+					       "zicsr", "zifencei", "zihintpause", "zihpm",
+					       "zba", "zbb", "zbs", "sscofpmf";
+			tlb-split;
+
+			cpu1_intc: interrupt-controller {
+				compatible = "riscv,cpu-intc";
+				interrupt-controller;
+				#interrupt-cells = <1>;
+			};
+		};
+
+		cpu2: cpu@2 {
+			compatible = "starfive,dubhe-90", "riscv";
+			capacity-dmips-mhz = <1024>;
+			d-cache-block-size = <64>;
+			d-cache-sets = <1024>;
+			d-cache-size = <65536>;
+			d-tlb-sets = <1>;
+			d-tlb-size = <48>;
+			device_type = "cpu";
+			i-cache-block-size = <64>;
+			i-cache-sets = <1024>;
+			i-cache-size = <65536>;
+			i-tlb-sets = <1>;
+			i-tlb-size = <48>;
+			mmu-type = "riscv,sv48";
+			next-level-cache = <&l2c2>;
+			reg = <0x2>;
+			riscv,isa = "rv64imafdch";
+			riscv,isa-base = "rv64i";
+			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
+					       "zicsr", "zifencei", "zihintpause", "zihpm",
+					       "zba", "zbb", "zbs", "sscofpmf";
+			tlb-split;
+
+			cpu2_intc: interrupt-controller {
+				compatible = "riscv,cpu-intc";
+				interrupt-controller;
+				#interrupt-cells = <1>;
+			};
+		};
+
+		cpu3: cpu@3 {
+			compatible = "starfive,dubhe-90", "riscv";
+			capacity-dmips-mhz = <1024>;
+			d-cache-block-size = <64>;
+			d-cache-sets = <1024>;
+			d-cache-size = <65536>;
+			d-tlb-sets = <1>;
+			d-tlb-size = <48>;
+			device_type = "cpu";
+			i-cache-block-size = <64>;
+			i-cache-sets = <1024>;
+			i-cache-size = <65536>;
+			i-tlb-sets = <1>;
+			i-tlb-size = <48>;
+			mmu-type = "riscv,sv48";
+			next-level-cache = <&l2c2>;
+			reg = <0x3>;
+			riscv,isa = "rv64imafdch";
+			riscv,isa-base = "rv64i";
+			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
+					       "zicsr", "zifencei", "zihintpause", "zihpm",
+					       "zba", "zbb", "zbs", "sscofpmf";
+			tlb-split;
+
+			cpu3_intc: interrupt-controller {
+				compatible = "riscv,cpu-intc";
+				interrupt-controller;
+				#interrupt-cells = <1>;
+			};
+		};
+
+		cpu4: cpu@4 {
+			compatible = "starfive,dubhe-90", "riscv";
+			capacity-dmips-mhz = <1024>;
+			d-cache-block-size = <64>;
+			d-cache-sets = <1024>;
+			d-cache-size = <65536>;
+			d-tlb-sets = <1>;
+			d-tlb-size = <48>;
+			device_type = "cpu";
+			i-cache-block-size = <64>;
+			i-cache-sets = <1024>;
+			i-cache-size = <65536>;
+			i-tlb-sets = <1>;
+			i-tlb-size = <48>;
+			mmu-type = "riscv,sv48";
+			next-level-cache = <&l2c2>;
+			reg = <0x4>;
+			riscv,isa = "rv64imafdch";
+			riscv,isa-base = "rv64i";
+			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
+					       "zicsr", "zifencei", "zihintpause", "zihpm",
+					       "zba", "zbb", "zbs", "sscofpmf";
+			tlb-split;
+
+			cpu4_intc: interrupt-controller {
+				compatible = "riscv,cpu-intc";
+				interrupt-controller;
+				#interrupt-cells = <1>;
+			};
+		};
+
+		cpu5: cpu@5 {
+			compatible = "starfive,dubhe-90", "riscv";
+			capacity-dmips-mhz = <1024>;
+			d-cache-block-size = <64>;
+			d-cache-sets = <1024>;
+			d-cache-size = <65536>;
+			d-tlb-sets = <1>;
+			d-tlb-size = <48>;
+			device_type = "cpu";
+			i-cache-block-size = <64>;
+			i-cache-sets = <1024>;
+			i-cache-size = <65536>;
+			i-tlb-sets = <1>;
+			i-tlb-size = <48>;
+			mmu-type = "riscv,sv48";
+			next-level-cache = <&l2c2>;
+			reg = <0x5>;
+			riscv,isa = "rv64imafdch";
+			riscv,isa-base = "rv64i";
+			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "h", "zicntr",
+					       "zicsr", "zifencei", "zihintpause", "zihpm",
+					       "zba", "zbb", "zbs", "sscofpmf";
+			tlb-split;
+
+			cpu5_intc: interrupt-controller {
+				compatible = "riscv,cpu-intc";
+				interrupt-controller;
+				#interrupt-cells = <1>;
+			};
+		};
+
+		cpu-map {
+			cluster0 {
+				core0 {
+					cpu = <&cpu0>;
+				};
+			};
+
+			cluster1 {
+				core0 {
+					cpu = <&cpu1>;
+				};
+			};
+
+			cluster2 {
+				core0 {
+					cpu = <&cpu2>;
+				};
+
+				core1 {
+					cpu = <&cpu3>;
+				};
+
+				core2 {
+					cpu = <&cpu4>;
+				};
+
+				core3 {
+					cpu = <&cpu5>;
+				};
+			};
+		};
+
+		l2c0: cache-controller-0 {
+			compatible = "cache";
+			cache-block-size = <64>;
+			cache-level = <2>;
+			cache-sets = <512>;
+			cache-size = <0x40000>;
+			cache-unified;
+			next-level-cache = <&l3_cache>;
+		};
+
+		l2c1: cache-controller-1 {
+			compatible = "cache";
+			cache-block-size = <64>;
+			cache-level = <2>;
+			cache-sets = <512>;
+			cache-size = <0x40000>;
+			cache-unified;
+			next-level-cache = <&l3_cache>;
+		};
+
+		l2c2: cache-controller-2{
+			compatible = "cache";
+			cache-block-size = <64>;
+			cache-level = <2>;
+			cache-sets = <4096>;
+			cache-size = <0x200000>;
+			cache-unified;
+			next-level-cache = <&l3_cache>;
+		};
+
+		l3_cache: cache-controller-3 {
+			compatible = "cache";
+			cache-block-size = <64>;
+			cache-level = <3>;
+			cache-sets = <8192>;
+			cache-size = <0x400000>;
+			cache-unified;
+		};
+	};
+
+	clk_uart: clk-uart {
+		compatible = "fixed-clock"; /* Initial clock handler for UART */
+		#clock-cells = <0>;
+		clock-frequency = <24000000>;
+	};
+
+	soc {
+		compatible = "simple-bus";
+		interrupt-parent = <&plic>;
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		clint: clint@2000000 {
+			compatible = "starfive,jh8100-clint", "sifive,clint0";
+			reg = <0x0 0x2000000 0x0 0x10000>;
+			interrupts-extended = <&cpu0_intc 3>, <&cpu0_intc 7>,
+					      <&cpu1_intc 3>, <&cpu1_intc 7>,
+					      <&cpu2_intc 3>, <&cpu2_intc 7>,
+					      <&cpu3_intc 3>, <&cpu3_intc 7>,
+					      <&cpu4_intc 3>, <&cpu4_intc 7>,
+					      <&cpu5_intc 3>, <&cpu5_intc 7>;
+		};
+
+		plic: interrupt-controller@c000000 {
+			#interrupt-cells = <1>;
+			#address-cells = <0>;
+			compatible = "starfive,jh8100-plic", "sifive,plic-1.0.0";
+			reg = <0x0 0x0c000000 0x0 0x4000000>;
+			riscv,ndev = <200>;
+			interrupt-controller;
+			interrupts-extended = <&cpu0_intc 11>, <&cpu1_intc 11>,
+					      <&cpu0_intc 9>, <&cpu1_intc 9>,
+					      <&cpu2_intc 11>, <&cpu3_intc 11>,
+					      <&cpu4_intc 11>, <&cpu5_intc 11>,
+					      <&cpu2_intc 9>, <&cpu3_intc 9>,
+					      <&cpu4_intc 9>, <&cpu5_intc 9>;
+		};
+
+		uart0: serial@12160000 {
+			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
+			reg = <0x0 0x12160000 0x0 0x10000>;
+			clock-names = "uart_clk", "pclk";
+			clocks = <&clk_uart>, <&clk_uart>;
+			interrupts = <67>;
+			status = "disabled";
+		};
+
+		uart1: serial@12170000  {
+			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
+			reg = <0x0 0x12170000 0x0 0x10000>;
+			clock-names = "uart_clk", "pclk";
+			clocks = <&clk_uart>, <&clk_uart>;
+			interrupts = <68>;
+			status = "disabled";
+		};
+
+		uart2: serial@12180000  {
+			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
+			reg = <0x0 0x12180000 0x0 0x10000>;
+			clock-names = "uart_clk", "pclk";
+			clocks = <&clk_uart>, <&clk_uart>;
+			interrupts = <69>;
+			status = "disabled";
+		};
+
+		uart3: serial@12190000  {
+			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
+			reg = <0x0 0x12190000 0x0 0x10000>;
+			clock-names = "uart_clk", "pclk";
+			clocks = <&clk_uart>, <&clk_uart>;
+			interrupts = <70>;
+			status = "disabled";
+		};
+
+		uart4: serial@121a0000  {
+			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
+			reg = <0x0 0x121a0000 0x0 0x10000>;
+			clock-names = "uart_clk", "pclk";
+			clocks = <&clk_uart>, <&clk_uart>;
+			interrupts = <71>;
+			status = "disabled";
+		};
+
+		uart5: serial@127d0000  {
+			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
+			reg = <0x0 0x127d0000 0x0 0x10000>;
+			clock-names = "uart_clk", "pclk";
+			clocks = <&clk_uart>, <&clk_uart>;
+			interrupts = <72>;
+			status = "disabled";
+		};
+
+		uart6: serial@127e0000  {
+			compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
+			reg = <0x0 0x127e0000 0x0 0x10000>;
+			clock-names = "uart_clk", "pclk";
+			clocks = <&clk_uart>, <&clk_uart>;
+			interrupts = <73>;
+			status = "disabled";
+		};
+	};
+};