diff mbox series

arm64: dts: cisco: add device tree for Cisco CrayAr Argos.

Message ID 20230315010920.2473206-1-danielwa@cisco.com (mailing list archive)
State Changes Requested
Headers show
Series arm64: dts: cisco: add device tree for Cisco CrayAr Argos. | expand

Commit Message

Daniel Walker (danielwa) March 15, 2023, 1:09 a.m. UTC
From: Marcin Wierzbicki <mawierzb@cisco.com>

This adds device tree include file for Cisco CrayAR SoC and
device tree file for Cisco CrayAR Argos EVB board.

Cc: xe-linux-external@cisco.com
Signed-off-by: Marcin Wierzbicki <mawierzb@cisco.com>
Signed-off-by: Daniel Walker <danielwa@cisco.com>
---
 .../devicetree/bindings/arm/cisco/crayar.yaml |  27 ++
 MAINTAINERS                                   |   5 +
 arch/arm64/Kconfig.platforms                  |   5 +
 arch/arm64/boot/dts/Makefile                  |   1 +
 arch/arm64/boot/dts/cisco/Makefile            |   2 +
 arch/arm64/boot/dts/cisco/crayar.dtsi         | 326 ++++++++++++++++++
 arch/arm64/boot/dts/cisco/crayar_argos.dts    |  32 ++
 7 files changed, 398 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/cisco/crayar.yaml
 create mode 100644 arch/arm64/boot/dts/cisco/Makefile
 create mode 100644 arch/arm64/boot/dts/cisco/crayar.dtsi
 create mode 100644 arch/arm64/boot/dts/cisco/crayar_argos.dts

Comments

Krzysztof Kozlowski March 15, 2023, 6:36 a.m. UTC | #1
On 15/03/2023 02:09, Daniel Walker wrote:
> From: Marcin Wierzbicki <mawierzb@cisco.com>
> 
> This adds device tree include file for Cisco CrayAR SoC and
> device tree file for Cisco CrayAR Argos EVB board.
> 
> Cc: xe-linux-external@cisco.com
> Signed-off-by: Marcin Wierzbicki <mawierzb@cisco.com>
> Signed-off-by: Daniel Walker <danielwa@cisco.com>
> ---
>  .../devicetree/bindings/arm/cisco/crayar.yaml |  27 ++
>  MAINTAINERS                                   |   5 +
>  arch/arm64/Kconfig.platforms                  |   5 +
>  arch/arm64/boot/dts/Makefile                  |   1 +
>  arch/arm64/boot/dts/cisco/Makefile            |   2 +
>  arch/arm64/boot/dts/cisco/crayar.dtsi         | 326 ++++++++++++++++++
>  arch/arm64/boot/dts/cisco/crayar_argos.dts    |  32 ++
>  7 files changed, 398 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/arm/cisco/crayar.yaml
>  create mode 100644 arch/arm64/boot/dts/cisco/Makefile
>  create mode 100644 arch/arm64/boot/dts/cisco/crayar.dtsi
>  create mode 100644 arch/arm64/boot/dts/cisco/crayar_argos.dts
> 
> diff --git a/Documentation/devicetree/bindings/arm/cisco/crayar.yaml b/Documentation/devicetree/bindings/arm/cisco/crayar.yaml
> new file mode 100644
> index 000000000000..3975ca4fd07a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/cisco/crayar.yaml

Bindings are separate patches, always, split them.

> @@ -0,0 +1,27 @@
> +# SPDX-License-Identifier: GPL-2.0

Dual license. Checkpatch should complain.

> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/arm/cisco/crayar.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Cisco CrayAR based Platforms Device Tree Bindings

Drio "Device Tree Bindings"

> +
> +maintainers:
> +  - xe-linux-external@cisco.com
> +
> +description: |

Drop '|'

> +  Cisco CrayAR boards with CrayAR SOC
> +
> +properties:
> +  $nodename:
> +    const: '/'
> +  compatible:
> +    oneOf:
> +      - description: Cisco CrayAR Argos evaluation board
> +        items:
> +          - const: cisco,crayar-argos
> +          - const: cisco,crayar
> +
> +additionalProperties: true
> +
> +...
> diff --git a/MAINTAINERS b/MAINTAINERS
> index ec57c42ed544..f94d769c6f88 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -4793,6 +4793,11 @@ X:	drivers/char/ipmi/
>  X:	drivers/char/random.c
>  X:	drivers/char/tpm/
>  
> +CISCO ARM64 DEVICE TREE SUPPORT
> +M:	xe-linux-external@cisco.com
> +S:	Supported
> +F:	arch/arm64/boot/dts/cisco/
> +
>  CHECKPATCH
>  M:	Andy Whitcroft <apw@canonical.com>
>  M:	Joe Perches <joe@perches.com>
> diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
> index 89a0b13b058d..740099c56382 100644
> --- a/arch/arm64/Kconfig.platforms
> +++ b/arch/arm64/Kconfig.platforms
> @@ -94,6 +94,11 @@ config ARCH_BITMAIN
>  	help
>  	  This enables support for the Bitmain SoC Family.
>  
> +config ARCH_CISCO_CRAYAR_ARGOS
> +	bool "Cisco Argos Platform"
> +	help
> +	  This enables support for the Cisco Argos Platform.
> +
>  config ARCH_EXYNOS
>  	bool "Samsung Exynos SoC family"
>  	select COMMON_CLK_SAMSUNG
> diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
> index 7b107fa7414b..3f83583f9996 100644
> --- a/arch/arm64/boot/dts/Makefile
> +++ b/arch/arm64/boot/dts/Makefile
> @@ -11,6 +11,7 @@ subdir-y += arm
>  subdir-y += bitmain
>  subdir-y += broadcom
>  subdir-y += cavium
> +subdir-y += cisco
>  subdir-y += exynos
>  subdir-y += freescale
>  subdir-y += hisilicon
> diff --git a/arch/arm64/boot/dts/cisco/Makefile b/arch/arm64/boot/dts/cisco/Makefile
> new file mode 100644
> index 000000000000..b1d4220df2f4
> --- /dev/null
> +++ b/arch/arm64/boot/dts/cisco/Makefile
> @@ -0,0 +1,2 @@
> +# SPDX-License-Identifier: GPL-2.0
> +dtb-$(CONFIG_ARCH_CISCO_CRAYAR_ARGOS) += crayar_argos.dtb
> diff --git a/arch/arm64/boot/dts/cisco/crayar.dtsi b/arch/arm64/boot/dts/cisco/crayar.dtsi
> new file mode 100644
> index 000000000000..22579406e65c
> --- /dev/null
> +++ b/arch/arm64/boot/dts/cisco/crayar.dtsi
> @@ -0,0 +1,326 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Device Tree Include file for Cisco CrayAR family SoC.
> + *
> + * Copyright (C) 2022 Cisco
> + */
> +
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +
> +/ {
> +	compatible = "cisco,crayar";
> +	interrupt-parent = <&gic>;
> +	#address-cells = <0x2>;
> +	#size-cells = <0x2>;
> +
> +	base_clk: base-clk {
> +		compatible = "fixed-clock";
> +		#clock-cells = <0>;
> +		clock-frequency = <500000000>;
> +	};
> +
> +	cpus {
> +		#address-cells = <0x1>;
> +		#size-cells = <0x0>;
> +
> +		cpu0: cpu@0 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a75", "arm,armv8";
> +			reg = <0x00000>;
> +			enable-method = "spin-table";
> +			cpu-release-addr = <0x0 0x7003FFF8>;
> +			next-level-cache = <&l2_0>;
> +		};
> +
> +		cpu1: cpu@100 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a75", "arm,armv8";
> +			reg = <0x00100>;
> +			enable-method = "spin-table";
> +			cpu-release-addr = <0x0 0x7003FFF8>;
> +			next-level-cache = <&l2_1>;
> +		};
> +
> +		cpu2: cpu@200 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a75", "arm,armv8";
> +			reg = <0x00200>;
> +			enable-method = "spin-table";
> +			cpu-release-addr = <0x0 0x7003FFF8>;
> +			next-level-cache = <&l2_2>;
> +		};
> +
> +		cpu3: cpu@300 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a75", "arm,armv8";
> +			reg = <0x00300>;
> +			enable-method = "spin-table";
> +			cpu-release-addr = <0x0 0x7003FFF8>;
> +			next-level-cache = <&l2_3>;
> +		};
> +
> +		cpu4: cpu@10000 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a75", "arm,armv8";
> +			reg = <0x10000>;
> +			enable-method = "spin-table";
> +			cpu-release-addr = <0x0 0x7003FFF8>;
> +			next-level-cache = <&l2_4>;
> +		};
> +
> +		cpu5: cpu@10100 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a75", "arm,armv8";
> +			reg = <0x10100>;
> +			enable-method = "spin-table";
> +			cpu-release-addr = <0x0 0x7003FFF8>;
> +			next-level-cache = <&l2_5>;
> +		};
> +
> +		cpu6: cpu@10200 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a75", "arm,armv8";
> +			reg = <0x10200>;
> +			enable-method = "spin-table";
> +			cpu-release-addr = <0x0 0x7003FFF8>;
> +			next-level-cache = <&l2_6>;
> +		};
> +
> +		cpu7: cpu@10300 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a75", "arm,armv8";
> +			reg = <0x10300>;
> +			enable-method = "spin-table";
> +			cpu-release-addr = <0x0 0x7003FFF8>;
> +			next-level-cache = <&l2_7>;
> +		};
> +
> +		cpu-map {
> +			cluster0 {
> +				core0 {
> +					cpu = <&cpu0>;
> +				};
> +				core1 {
> +					cpu = <&cpu1>;
> +				};
> +				core2 {
> +					cpu = <&cpu2>;
> +				};
> +				core3 {
> +					cpu = <&cpu3>;
> +				};
> +			};
> +			cluster1 {
> +				core0 {
> +					cpu = <&cpu4>;
> +				};
> +				core1 {
> +					cpu = <&cpu5>;
> +				};
> +				core2 {
> +					cpu = <&cpu6>;
> +				};
> +				core3 {
> +					cpu = <&cpu7>;
> +				};
> +			};
> +		};
> +
> +		l2_0: l2-cache0 {
> +			compatible = "cache";
> +			next-level-cache = <&l3_0>;
> +		};
> +
> +		l2_1: l2-cache1 {
> +			compatible = "cache";
> +			next-level-cache = <&l3_0>;
> +		};
> +
> +		l2_2: l2-cache2 {
> +			compatible = "cache";
> +			next-level-cache = <&l3_0>;
> +		};
> +
> +		l2_3: l2-cache3 {
> +			compatible = "cache";
> +			next-level-cache = <&l3_0>;
> +		};
> +
> +		l2_4: l2-cache4 {
> +			compatible = "cache";
> +			next-level-cache = <&l3_1>;
> +		};
> +
> +		l2_5: l2-cache5 {
> +			compatible = "cache";
> +			next-level-cache = <&l3_1>;
> +		};
> +
> +		l2_6: l2-cache6 {
> +			compatible = "cache";
> +			next-level-cache = <&l3_1>;
> +		};
> +
> +		l2_7: l2-cache7 {
> +			compatible = "cache";
> +			next-level-cache = <&l3_1>;
> +		};
> +
> +		l3_0: l3-cache0 {
> +			compatible = "cache";
> +		};
> +
> +		l3_1: l3-cache1 {
> +			compatible = "cache";
> +		};
> +	};
> +
> +	cci: cci@2E000000 {

Lowercase hex, everywhere

> +		compatible = "arm,cci-550";
> +		#address-cells = <0x1>;
> +		#size-cells = <0x1>;
> +		reg = <0x0 0x2E000000 0x0 0x1000>;

reg is second property

> +		ranges = <0x0 0x0 0x2E000000 0x6000>;

ranges third, and fix case everywhere

> +
> +		secondary-if@1000 {
> +			compatible = "arm,cci-550-ctrl-if";
> +			interface-type = "ace-lite";
> +			reg = <0x1000 0x1000>;
> +		};
> +
> +		secondary-if@2000 {
> +			compatible = "arm,cci-550-ctrl-if";
> +			interface-type = "ace-lite";
> +			reg = <0x2000 0x1000>;
> +		};
> +
> +		secondary-if@3000 {
> +			compatible = "arm,cci-550-ctrl-if";
> +			interface-type = "ace-lite";
> +			reg = <0x3000 0x1000>;
> +		};
> +
> +		secondary-if@4000 {
> +			compatible = "arm,cci-550-ctrl-if";
> +			interface-type = "ace";
> +			reg = <0x4000 0x1000>;
> +		};
> +
> +		secondary-if@5000 {
> +			compatible = "arm,cci-550-ctrl-if";
> +			interface-type = "ace";
> +			reg = <0x5000 0x1000>;
> +		};
> +
> +		secondary-if@6000 {
> +			compatible = "arm,cci-550-ctrl-if";
> +			interface-type = "ace";
> +			reg = <0x6000 0x1000>;
> +		};
> +
> +		secondary-if@7000 {
> +			compatible = "arm,cci-550-ctrl-if";
> +			interface-type = "ace";
> +			reg = <0x6000 0x1000>;
> +		};
> +
> +		pm-cntr@10000 {
> +			compatible = "arm,cci-550-pmu";
> +			reg = <0x10000 0x10000>;
> +		};
> +
> +		pm-cntr@20000 {
> +			compatible = "arm,cci-550-pmu";
> +			reg = <0x20000 0x10000>;
> +		};
> +
> +		pm-cntr@30000 {
> +			compatible = "arm,cci-550-pmu";
> +			reg = <0x30000 0x10000>;
> +		};
> +
> +		pm-cntr@40000 {
> +			compatible = "arm,cci-550-pmu";
> +			reg = <0x40000 0x10000>;
> +		};
> +
> +		pm-cntr@50000 {
> +			compatible = "arm,cci-550-pmu";
> +			reg = <0x50000 0x10000>;
> +		};
> +
> +		pm-cntr@60000 {
> +			compatible = "arm,cci-550-pmu";
> +			reg = <0x60000 0x10000>;
> +		};
> +
> +		pm-cntr@70000 {
> +			compatible = "arm,cci-550-pmu";
> +			reg = <0x70000 0x10000>;
> +		};
> +
> +		pm-cntr@80000 {
> +			compatible = "arm,cci-550-pmu";
> +			reg = <0x80000 0x10000>;
> +		};
> +	};
> +
> +	timer: timer {
> +		compatible = "arm,armv8-timer";
> +		interrupt-parent = <&gic>;
> +		interrupts =	<GIC_PPI 13 IRQ_TYPE_LEVEL_HIGH>,
> +				<GIC_PPI 14 IRQ_TYPE_LEVEL_HIGH>,
> +				<GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>,
> +				<GIC_PPI 10 IRQ_TYPE_LEVEL_HIGH>;
> +	};
> +
> +	gic: interrupt-controller@20000000 {
> +		compatible = "arm,gic-v3";
> +		#interrupt-cells = <3>;
> +		#address-cells = <2>;
> +		#size-cells = <2>;
> +		ranges;
> +		interrupt-controller;
> +		reg =	<0x0 0x20000000 0x0 0x10000>,	/* GICD */
> +			<0x0 0x20060000 0x0 0x100000>;	/* GICR */

Same problems.

> +
> +		interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
> +
> +		its: its@20040000 {
> +			compatible = "arm,gic-v3-its";
> +			msi-controller;
> +			mbi-ranges = <256 224>;
> +			reg = <0x0 0x20040000 0x0 0x10000>;
> +		};
> +	};


Best regards,
Krzysztof
Krzysztof Kozlowski March 15, 2023, 6:38 a.m. UTC | #2
On 15/03/2023 02:09, Daniel Walker wrote:
> From: Marcin Wierzbicki <mawierzb@cisco.com>

Also few nits: subject: drop full stop.

> 
> This adds device tree include file for Cisco CrayAR SoC and

Do not use "This commit/patch", but imperative mood. See:
https://elixir.bootlin.com/linux/v5.17.1/source/Documentation/process/submitting-patches.rst#L95

> device tree file for Cisco CrayAR Argos EVB board.
> 
> Cc: xe-linux-external@cisco.com
> Signed-off-by: Marcin Wierzbicki <mawierzb@cisco.com>
> Signed-off-by: Daniel Walker <danielwa@cisco.com>



Best regards,
Krzysztof
Daniel Walker (danielwa) March 15, 2023, 2:46 p.m. UTC | #3
On Wed, Mar 15, 2023 at 07:38:52AM +0100, Krzysztof Kozlowski wrote:
> On 15/03/2023 02:09, Daniel Walker wrote:
> > From: Marcin Wierzbicki <mawierzb@cisco.com>
> 
> Also few nits: subject: drop full stop.
 
I don't know what your asking here.

> > 
> > This adds device tree include file for Cisco CrayAR SoC and
> 
> Do not use "This commit/patch", but imperative mood. See:
> https://elixir.bootlin.com/linux/v5.17.1/source/Documentation/process/submitting-patches.rst#L95

Ok, I'll consider it.

Daniel
Krzysztof Kozlowski March 15, 2023, 3:30 p.m. UTC | #4
On 15/03/2023 15:46, Daniel Walker (danielwa) wrote:
> On Wed, Mar 15, 2023 at 07:38:52AM +0100, Krzysztof Kozlowski wrote:
>> On 15/03/2023 02:09, Daniel Walker wrote:
>>> From: Marcin Wierzbicki <mawierzb@cisco.com>
>>
>> Also few nits: subject: drop full stop.
>  
> I don't know what your asking here.

I am asking to drop full stop from Subject.

> 
>>>
>>> This adds device tree include file for Cisco CrayAR SoC and
>>
>> Do not use "This commit/patch", but imperative mood. See:
>> https://elixir.bootlin.com/linux/v5.17.1/source/Documentation/process/submitting-patches.rst#L95
> 
> Ok, I'll consider it.

Use Linux coding style, not your own.

Best regards,
Krzysztof
Daniel Walker (danielwa) March 15, 2023, 3:53 p.m. UTC | #5
On Wed, Mar 15, 2023 at 04:30:51PM +0100, Krzysztof Kozlowski wrote:
> On 15/03/2023 15:46, Daniel Walker (danielwa) wrote:
> > On Wed, Mar 15, 2023 at 07:38:52AM +0100, Krzysztof Kozlowski wrote:
> >> On 15/03/2023 02:09, Daniel Walker wrote:
> >>> From: Marcin Wierzbicki <mawierzb@cisco.com>
> >>
> >> Also few nits: subject: drop full stop.
> >  
> > I don't know what your asking here.
> 
> I am asking to drop full stop from Subject.

Do you mean the period at the end of the line ?

Daniel
Krzysztof Kozlowski March 15, 2023, 4:23 p.m. UTC | #6
On 15/03/2023 16:53, Daniel Walker (danielwa) wrote:
> On Wed, Mar 15, 2023 at 04:30:51PM +0100, Krzysztof Kozlowski wrote:
>> On 15/03/2023 15:46, Daniel Walker (danielwa) wrote:
>>> On Wed, Mar 15, 2023 at 07:38:52AM +0100, Krzysztof Kozlowski wrote:
>>>> On 15/03/2023 02:09, Daniel Walker wrote:
>>>>> From: Marcin Wierzbicki <mawierzb@cisco.com>
>>>>
>>>> Also few nits: subject: drop full stop.
>>>  
>>> I don't know what your asking here.
>>
>> I am asking to drop full stop from Subject.
> 
> Do you mean the period at the end of the line ?

Yes. Subject is not a full sentence.

https://en.wiktionary.org/wiki/full_stop


Best regards,
Krzysztof
Rob Herring March 16, 2023, 7:44 p.m. UTC | #7
On Tue, Mar 14, 2023 at 8:12 PM Daniel Walker <danielwa@cisco.com> wrote:
>
> From: Marcin Wierzbicki <mawierzb@cisco.com>
>
> This adds device tree include file for Cisco CrayAR SoC and
> device tree file for Cisco CrayAR Argos EVB board.

Run dtbs_check on your platform and fix all the errors. Some examples below...
>
> Cc: xe-linux-external@cisco.com
> Signed-off-by: Marcin Wierzbicki <mawierzb@cisco.com>
> Signed-off-by: Daniel Walker <danielwa@cisco.com>
> ---
>  .../devicetree/bindings/arm/cisco/crayar.yaml |  27 ++
>  MAINTAINERS                                   |   5 +
>  arch/arm64/Kconfig.platforms                  |   5 +
>  arch/arm64/boot/dts/Makefile                  |   1 +
>  arch/arm64/boot/dts/cisco/Makefile            |   2 +
>  arch/arm64/boot/dts/cisco/crayar.dtsi         | 326 ++++++++++++++++++
>  arch/arm64/boot/dts/cisco/crayar_argos.dts    |  32 ++
>  7 files changed, 398 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/arm/cisco/crayar.yaml
>  create mode 100644 arch/arm64/boot/dts/cisco/Makefile
>  create mode 100644 arch/arm64/boot/dts/cisco/crayar.dtsi
>  create mode 100644 arch/arm64/boot/dts/cisco/crayar_argos.dts
>
> diff --git a/Documentation/devicetree/bindings/arm/cisco/crayar.yaml b/Documentation/devicetree/bindings/arm/cisco/crayar.yaml
> new file mode 100644
> index 000000000000..3975ca4fd07a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/cisco/crayar.yaml
> @@ -0,0 +1,27 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/arm/cisco/crayar.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Cisco CrayAR based Platforms Device Tree Bindings
> +
> +maintainers:
> +  - xe-linux-external@cisco.com
> +
> +description: |
> +  Cisco CrayAR boards with CrayAR SOC
> +
> +properties:
> +  $nodename:
> +    const: '/'
> +  compatible:
> +    oneOf:
> +      - description: Cisco CrayAR Argos evaluation board
> +        items:
> +          - const: cisco,crayar-argos
> +          - const: cisco,crayar
> +
> +additionalProperties: true
> +
> +...
> diff --git a/MAINTAINERS b/MAINTAINERS
> index ec57c42ed544..f94d769c6f88 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -4793,6 +4793,11 @@ X:       drivers/char/ipmi/
>  X:     drivers/char/random.c
>  X:     drivers/char/tpm/
>
> +CISCO ARM64 DEVICE TREE SUPPORT
> +M:     xe-linux-external@cisco.com
> +S:     Supported
> +F:     arch/arm64/boot/dts/cisco/
> +
>  CHECKPATCH
>  M:     Andy Whitcroft <apw@canonical.com>
>  M:     Joe Perches <joe@perches.com>
> diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
> index 89a0b13b058d..740099c56382 100644
> --- a/arch/arm64/Kconfig.platforms
> +++ b/arch/arm64/Kconfig.platforms
> @@ -94,6 +94,11 @@ config ARCH_BITMAIN
>         help
>           This enables support for the Bitmain SoC Family.
>
> +config ARCH_CISCO_CRAYAR_ARGOS
> +       bool "Cisco Argos Platform"
> +       help
> +         This enables support for the Cisco Argos Platform.
> +
>  config ARCH_EXYNOS
>         bool "Samsung Exynos SoC family"
>         select COMMON_CLK_SAMSUNG
> diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
> index 7b107fa7414b..3f83583f9996 100644
> --- a/arch/arm64/boot/dts/Makefile
> +++ b/arch/arm64/boot/dts/Makefile
> @@ -11,6 +11,7 @@ subdir-y += arm
>  subdir-y += bitmain
>  subdir-y += broadcom
>  subdir-y += cavium
> +subdir-y += cisco
>  subdir-y += exynos
>  subdir-y += freescale
>  subdir-y += hisilicon
> diff --git a/arch/arm64/boot/dts/cisco/Makefile b/arch/arm64/boot/dts/cisco/Makefile
> new file mode 100644
> index 000000000000..b1d4220df2f4
> --- /dev/null
> +++ b/arch/arm64/boot/dts/cisco/Makefile
> @@ -0,0 +1,2 @@
> +# SPDX-License-Identifier: GPL-2.0
> +dtb-$(CONFIG_ARCH_CISCO_CRAYAR_ARGOS) += crayar_argos.dtb
> diff --git a/arch/arm64/boot/dts/cisco/crayar.dtsi b/arch/arm64/boot/dts/cisco/crayar.dtsi
> new file mode 100644
> index 000000000000..22579406e65c
> --- /dev/null
> +++ b/arch/arm64/boot/dts/cisco/crayar.dtsi
> @@ -0,0 +1,326 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Device Tree Include file for Cisco CrayAR family SoC.
> + *
> + * Copyright (C) 2022 Cisco
> + */
> +
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +
> +/ {
> +       compatible = "cisco,crayar";
> +       interrupt-parent = <&gic>;
> +       #address-cells = <0x2>;
> +       #size-cells = <0x2>;
> +
> +       base_clk: base-clk {
> +               compatible = "fixed-clock";
> +               #clock-cells = <0>;
> +               clock-frequency = <500000000>;
> +       };
> +
> +       cpus {
> +               #address-cells = <0x1>;

Should be 2.

> +               #size-cells = <0x0>;
> +
> +               cpu0: cpu@0 {
> +                       device_type = "cpu";
> +                       compatible = "arm,cortex-a75", "arm,armv8";

"arm,armv8" is only for s/w emulators.

> +                       reg = <0x00000>;
> +                       enable-method = "spin-table";
> +                       cpu-release-addr = <0x0 0x7003FFF8>;
> +                       next-level-cache = <&l2_0>;
> +               };
> +
> +               cpu1: cpu@100 {
> +                       device_type = "cpu";
> +                       compatible = "arm,cortex-a75", "arm,armv8";
> +                       reg = <0x00100>;
> +                       enable-method = "spin-table";
> +                       cpu-release-addr = <0x0 0x7003FFF8>;
> +                       next-level-cache = <&l2_1>;
> +               };
> +
> +               cpu2: cpu@200 {
> +                       device_type = "cpu";
> +                       compatible = "arm,cortex-a75", "arm,armv8";
> +                       reg = <0x00200>;
> +                       enable-method = "spin-table";
> +                       cpu-release-addr = <0x0 0x7003FFF8>;
> +                       next-level-cache = <&l2_2>;
> +               };
> +
> +               cpu3: cpu@300 {
> +                       device_type = "cpu";
> +                       compatible = "arm,cortex-a75", "arm,armv8";
> +                       reg = <0x00300>;
> +                       enable-method = "spin-table";
> +                       cpu-release-addr = <0x0 0x7003FFF8>;
> +                       next-level-cache = <&l2_3>;
> +               };
> +
> +               cpu4: cpu@10000 {
> +                       device_type = "cpu";
> +                       compatible = "arm,cortex-a75", "arm,armv8";
> +                       reg = <0x10000>;
> +                       enable-method = "spin-table";
> +                       cpu-release-addr = <0x0 0x7003FFF8>;
> +                       next-level-cache = <&l2_4>;
> +               };
> +
> +               cpu5: cpu@10100 {
> +                       device_type = "cpu";
> +                       compatible = "arm,cortex-a75", "arm,armv8";
> +                       reg = <0x10100>;
> +                       enable-method = "spin-table";
> +                       cpu-release-addr = <0x0 0x7003FFF8>;
> +                       next-level-cache = <&l2_5>;
> +               };
> +
> +               cpu6: cpu@10200 {
> +                       device_type = "cpu";
> +                       compatible = "arm,cortex-a75", "arm,armv8";
> +                       reg = <0x10200>;
> +                       enable-method = "spin-table";
> +                       cpu-release-addr = <0x0 0x7003FFF8>;
> +                       next-level-cache = <&l2_6>;
> +               };
> +
> +               cpu7: cpu@10300 {
> +                       device_type = "cpu";
> +                       compatible = "arm,cortex-a75", "arm,armv8";
> +                       reg = <0x10300>;
> +                       enable-method = "spin-table";
> +                       cpu-release-addr = <0x0 0x7003FFF8>;
> +                       next-level-cache = <&l2_7>;
> +               };
> +
> +               cpu-map {
> +                       cluster0 {
> +                               core0 {
> +                                       cpu = <&cpu0>;
> +                               };
> +                               core1 {
> +                                       cpu = <&cpu1>;
> +                               };
> +                               core2 {
> +                                       cpu = <&cpu2>;
> +                               };
> +                               core3 {
> +                                       cpu = <&cpu3>;
> +                               };
> +                       };
> +                       cluster1 {
> +                               core0 {
> +                                       cpu = <&cpu4>;
> +                               };
> +                               core1 {
> +                                       cpu = <&cpu5>;
> +                               };
> +                               core2 {
> +                                       cpu = <&cpu6>;
> +                               };
> +                               core3 {
> +                                       cpu = <&cpu7>;
> +                               };
> +                       };
> +               };
> +
> +               l2_0: l2-cache0 {
> +                       compatible = "cache";
> +                       next-level-cache = <&l3_0>;

Missing properties.

> +               };
> +
> +               l2_1: l2-cache1 {
> +                       compatible = "cache";
> +                       next-level-cache = <&l3_0>;
> +               };
> +
> +               l2_2: l2-cache2 {
> +                       compatible = "cache";
> +                       next-level-cache = <&l3_0>;
> +               };
> +
> +               l2_3: l2-cache3 {
> +                       compatible = "cache";
> +                       next-level-cache = <&l3_0>;
> +               };
> +
> +               l2_4: l2-cache4 {
> +                       compatible = "cache";
> +                       next-level-cache = <&l3_1>;
> +               };
> +
> +               l2_5: l2-cache5 {
> +                       compatible = "cache";
> +                       next-level-cache = <&l3_1>;
> +               };
> +
> +               l2_6: l2-cache6 {
> +                       compatible = "cache";
> +                       next-level-cache = <&l3_1>;
> +               };
> +
> +               l2_7: l2-cache7 {
> +                       compatible = "cache";
> +                       next-level-cache = <&l3_1>;
> +               };
> +
> +               l3_0: l3-cache0 {
> +                       compatible = "cache";
> +               };
> +
> +               l3_1: l3-cache1 {
> +                       compatible = "cache";
> +               };
> +       };
> +
> +       cci: cci@2E000000 {
> +               compatible = "arm,cci-550";
> +               #address-cells = <0x1>;
> +               #size-cells = <0x1>;
> +               reg = <0x0 0x2E000000 0x0 0x1000>;
> +               ranges = <0x0 0x0 0x2E000000 0x6000>;
> +
> +               secondary-if@1000 {
> +                       compatible = "arm,cci-550-ctrl-if";
> +                       interface-type = "ace-lite";
> +                       reg = <0x1000 0x1000>;
> +               };
> +
> +               secondary-if@2000 {
> +                       compatible = "arm,cci-550-ctrl-if";
> +                       interface-type = "ace-lite";
> +                       reg = <0x2000 0x1000>;
> +               };
> +
> +               secondary-if@3000 {
> +                       compatible = "arm,cci-550-ctrl-if";
> +                       interface-type = "ace-lite";
> +                       reg = <0x3000 0x1000>;
> +               };
> +
> +               secondary-if@4000 {
> +                       compatible = "arm,cci-550-ctrl-if";
> +                       interface-type = "ace";
> +                       reg = <0x4000 0x1000>;
> +               };
> +
> +               secondary-if@5000 {
> +                       compatible = "arm,cci-550-ctrl-if";
> +                       interface-type = "ace";
> +                       reg = <0x5000 0x1000>;
> +               };
> +
> +               secondary-if@6000 {
> +                       compatible = "arm,cci-550-ctrl-if";
> +                       interface-type = "ace";
> +                       reg = <0x6000 0x1000>;
> +               };
> +
> +               secondary-if@7000 {
> +                       compatible = "arm,cci-550-ctrl-if";
> +                       interface-type = "ace";
> +                       reg = <0x6000 0x1000>;
> +               };
> +
> +               pm-cntr@10000 {
> +                       compatible = "arm,cci-550-pmu";
> +                       reg = <0x10000 0x10000>;
> +               };
> +
> +               pm-cntr@20000 {
> +                       compatible = "arm,cci-550-pmu";
> +                       reg = <0x20000 0x10000>;
> +               };
> +
> +               pm-cntr@30000 {
> +                       compatible = "arm,cci-550-pmu";
> +                       reg = <0x30000 0x10000>;
> +               };
> +
> +               pm-cntr@40000 {
> +                       compatible = "arm,cci-550-pmu";
> +                       reg = <0x40000 0x10000>;
> +               };
> +
> +               pm-cntr@50000 {
> +                       compatible = "arm,cci-550-pmu";
> +                       reg = <0x50000 0x10000>;
> +               };
> +
> +               pm-cntr@60000 {
> +                       compatible = "arm,cci-550-pmu";
> +                       reg = <0x60000 0x10000>;
> +               };
> +
> +               pm-cntr@70000 {
> +                       compatible = "arm,cci-550-pmu";
> +                       reg = <0x70000 0x10000>;
> +               };
> +
> +               pm-cntr@80000 {
> +                       compatible = "arm,cci-550-pmu";
> +                       reg = <0x80000 0x10000>;
> +               };
> +       };
> +
> +       timer: timer {
> +               compatible = "arm,armv8-timer";
> +               interrupt-parent = <&gic>;
> +               interrupts =    <GIC_PPI 13 IRQ_TYPE_LEVEL_HIGH>,
> +                               <GIC_PPI 14 IRQ_TYPE_LEVEL_HIGH>,
> +                               <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>,
> +                               <GIC_PPI 10 IRQ_TYPE_LEVEL_HIGH>;
> +       };
> +
> +       gic: interrupt-controller@20000000 {
> +               compatible = "arm,gic-v3";
> +               #interrupt-cells = <3>;
> +               #address-cells = <2>;
> +               #size-cells = <2>;
> +               ranges;
> +               interrupt-controller;
> +               reg =   <0x0 0x20000000 0x0 0x10000>,   /* GICD */
> +                       <0x0 0x20060000 0x0 0x100000>;  /* GICR */
> +
> +               interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
> +
> +               its: its@20040000 {

msi-controller@...

> +                       compatible = "arm,gic-v3-its";
> +                       msi-controller;
> +                       mbi-ranges = <256 224>;
> +                       reg = <0x0 0x20040000 0x0 0x10000>;
> +               };
> +       };
> +
> +       soc {
> +               compatible = "simple-bus";
> +               #address-cells = <0x2>;
> +               #size-cells = <0x2>;
> +               ranges = <0x0 0x0 0x0 0x0 0x100 0x0>;
> +
> +               uart0: serial@23f80000 {
> +                       compatible = "ns16550a";
> +                       reg = <0x0 0x23f80000 0x0 0x100>;
> +                       interrupts = <GIC_SPI 129 IRQ_TYPE_LEVEL_HIGH>;
> +                       reg-shift = <0x2>;
> +                       reg-io-width = <0x4>;
> +                       clocks = <&base_clk>;
> +                       current-speed = <9600>;
> +                       status = "disabled";
> +               };
> +
> +               uart1: serial@23fc0000 {
> +                       compatible = "ns16550a";
> +                       reg = <0x0 0x23fc0000 0x0 0x100>;
> +                       interrupts = <GIC_SPI 130 IRQ_TYPE_LEVEL_HIGH>;
> +                       reg-shift = <0x2>;
> +                       reg-io-width = <0x4>;
> +                       clocks = <&base_clk>;
> +                       current-speed = <9600>;
> +                       status = "disabled";
> +               };
> +       };
> +};
> diff --git a/arch/arm64/boot/dts/cisco/crayar_argos.dts b/arch/arm64/boot/dts/cisco/crayar_argos.dts
> new file mode 100644
> index 000000000000..d415427c145f
> --- /dev/null
> +++ b/arch/arm64/boot/dts/cisco/crayar_argos.dts
> @@ -0,0 +1,32 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Device Tree file for Cisco CrayAR Argos EVB board.
> + *
> + * Copyright (C) 2022 Cisco
> + */
> +
> +/dts-v1/;
> +#include "crayar.dtsi"
> +
> +/ {
> +       compatible = "cisco,crayar-argos", "cisco,crayar";
> +       model = "Cisco CrayAr Argos EVB";
> +       version = <0x00000001>;
> +
> +       aliases {
> +               serial0 = &uart0;
> +       };
> +
> +       chosen {
> +               stdout-path = "serial0:9600n8";
> +       };
> +
> +       memory {

Needs unit-address.

> +               device_type = "memory";
> +               reg = <0x0 0x80000000 0x0 0x80000000>;
> +       };
> +};
> +
> +&uart0 {
> +       status = "okay";
> +};
> --
> 2.25.1
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/arm/cisco/crayar.yaml b/Documentation/devicetree/bindings/arm/cisco/crayar.yaml
new file mode 100644
index 000000000000..3975ca4fd07a
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/cisco/crayar.yaml
@@ -0,0 +1,27 @@ 
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/cisco/crayar.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cisco CrayAR based Platforms Device Tree Bindings
+
+maintainers:
+  - xe-linux-external@cisco.com
+
+description: |
+  Cisco CrayAR boards with CrayAR SOC
+
+properties:
+  $nodename:
+    const: '/'
+  compatible:
+    oneOf:
+      - description: Cisco CrayAR Argos evaluation board
+        items:
+          - const: cisco,crayar-argos
+          - const: cisco,crayar
+
+additionalProperties: true
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index ec57c42ed544..f94d769c6f88 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4793,6 +4793,11 @@  X:	drivers/char/ipmi/
 X:	drivers/char/random.c
 X:	drivers/char/tpm/
 
+CISCO ARM64 DEVICE TREE SUPPORT
+M:	xe-linux-external@cisco.com
+S:	Supported
+F:	arch/arm64/boot/dts/cisco/
+
 CHECKPATCH
 M:	Andy Whitcroft <apw@canonical.com>
 M:	Joe Perches <joe@perches.com>
diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index 89a0b13b058d..740099c56382 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -94,6 +94,11 @@  config ARCH_BITMAIN
 	help
 	  This enables support for the Bitmain SoC Family.
 
+config ARCH_CISCO_CRAYAR_ARGOS
+	bool "Cisco Argos Platform"
+	help
+	  This enables support for the Cisco Argos Platform.
+
 config ARCH_EXYNOS
 	bool "Samsung Exynos SoC family"
 	select COMMON_CLK_SAMSUNG
diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
index 7b107fa7414b..3f83583f9996 100644
--- a/arch/arm64/boot/dts/Makefile
+++ b/arch/arm64/boot/dts/Makefile
@@ -11,6 +11,7 @@  subdir-y += arm
 subdir-y += bitmain
 subdir-y += broadcom
 subdir-y += cavium
+subdir-y += cisco
 subdir-y += exynos
 subdir-y += freescale
 subdir-y += hisilicon
diff --git a/arch/arm64/boot/dts/cisco/Makefile b/arch/arm64/boot/dts/cisco/Makefile
new file mode 100644
index 000000000000..b1d4220df2f4
--- /dev/null
+++ b/arch/arm64/boot/dts/cisco/Makefile
@@ -0,0 +1,2 @@ 
+# SPDX-License-Identifier: GPL-2.0
+dtb-$(CONFIG_ARCH_CISCO_CRAYAR_ARGOS) += crayar_argos.dtb
diff --git a/arch/arm64/boot/dts/cisco/crayar.dtsi b/arch/arm64/boot/dts/cisco/crayar.dtsi
new file mode 100644
index 000000000000..22579406e65c
--- /dev/null
+++ b/arch/arm64/boot/dts/cisco/crayar.dtsi
@@ -0,0 +1,326 @@ 
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Include file for Cisco CrayAR family SoC.
+ *
+ * Copyright (C) 2022 Cisco
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	compatible = "cisco,crayar";
+	interrupt-parent = <&gic>;
+	#address-cells = <0x2>;
+	#size-cells = <0x2>;
+
+	base_clk: base-clk {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <500000000>;
+	};
+
+	cpus {
+		#address-cells = <0x1>;
+		#size-cells = <0x0>;
+
+		cpu0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a75", "arm,armv8";
+			reg = <0x00000>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0x0 0x7003FFF8>;
+			next-level-cache = <&l2_0>;
+		};
+
+		cpu1: cpu@100 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a75", "arm,armv8";
+			reg = <0x00100>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0x0 0x7003FFF8>;
+			next-level-cache = <&l2_1>;
+		};
+
+		cpu2: cpu@200 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a75", "arm,armv8";
+			reg = <0x00200>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0x0 0x7003FFF8>;
+			next-level-cache = <&l2_2>;
+		};
+
+		cpu3: cpu@300 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a75", "arm,armv8";
+			reg = <0x00300>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0x0 0x7003FFF8>;
+			next-level-cache = <&l2_3>;
+		};
+
+		cpu4: cpu@10000 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a75", "arm,armv8";
+			reg = <0x10000>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0x0 0x7003FFF8>;
+			next-level-cache = <&l2_4>;
+		};
+
+		cpu5: cpu@10100 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a75", "arm,armv8";
+			reg = <0x10100>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0x0 0x7003FFF8>;
+			next-level-cache = <&l2_5>;
+		};
+
+		cpu6: cpu@10200 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a75", "arm,armv8";
+			reg = <0x10200>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0x0 0x7003FFF8>;
+			next-level-cache = <&l2_6>;
+		};
+
+		cpu7: cpu@10300 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a75", "arm,armv8";
+			reg = <0x10300>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0x0 0x7003FFF8>;
+			next-level-cache = <&l2_7>;
+		};
+
+		cpu-map {
+			cluster0 {
+				core0 {
+					cpu = <&cpu0>;
+				};
+				core1 {
+					cpu = <&cpu1>;
+				};
+				core2 {
+					cpu = <&cpu2>;
+				};
+				core3 {
+					cpu = <&cpu3>;
+				};
+			};
+			cluster1 {
+				core0 {
+					cpu = <&cpu4>;
+				};
+				core1 {
+					cpu = <&cpu5>;
+				};
+				core2 {
+					cpu = <&cpu6>;
+				};
+				core3 {
+					cpu = <&cpu7>;
+				};
+			};
+		};
+
+		l2_0: l2-cache0 {
+			compatible = "cache";
+			next-level-cache = <&l3_0>;
+		};
+
+		l2_1: l2-cache1 {
+			compatible = "cache";
+			next-level-cache = <&l3_0>;
+		};
+
+		l2_2: l2-cache2 {
+			compatible = "cache";
+			next-level-cache = <&l3_0>;
+		};
+
+		l2_3: l2-cache3 {
+			compatible = "cache";
+			next-level-cache = <&l3_0>;
+		};
+
+		l2_4: l2-cache4 {
+			compatible = "cache";
+			next-level-cache = <&l3_1>;
+		};
+
+		l2_5: l2-cache5 {
+			compatible = "cache";
+			next-level-cache = <&l3_1>;
+		};
+
+		l2_6: l2-cache6 {
+			compatible = "cache";
+			next-level-cache = <&l3_1>;
+		};
+
+		l2_7: l2-cache7 {
+			compatible = "cache";
+			next-level-cache = <&l3_1>;
+		};
+
+		l3_0: l3-cache0 {
+			compatible = "cache";
+		};
+
+		l3_1: l3-cache1 {
+			compatible = "cache";
+		};
+	};
+
+	cci: cci@2E000000 {
+		compatible = "arm,cci-550";
+		#address-cells = <0x1>;
+		#size-cells = <0x1>;
+		reg = <0x0 0x2E000000 0x0 0x1000>;
+		ranges = <0x0 0x0 0x2E000000 0x6000>;
+
+		secondary-if@1000 {
+			compatible = "arm,cci-550-ctrl-if";
+			interface-type = "ace-lite";
+			reg = <0x1000 0x1000>;
+		};
+
+		secondary-if@2000 {
+			compatible = "arm,cci-550-ctrl-if";
+			interface-type = "ace-lite";
+			reg = <0x2000 0x1000>;
+		};
+
+		secondary-if@3000 {
+			compatible = "arm,cci-550-ctrl-if";
+			interface-type = "ace-lite";
+			reg = <0x3000 0x1000>;
+		};
+
+		secondary-if@4000 {
+			compatible = "arm,cci-550-ctrl-if";
+			interface-type = "ace";
+			reg = <0x4000 0x1000>;
+		};
+
+		secondary-if@5000 {
+			compatible = "arm,cci-550-ctrl-if";
+			interface-type = "ace";
+			reg = <0x5000 0x1000>;
+		};
+
+		secondary-if@6000 {
+			compatible = "arm,cci-550-ctrl-if";
+			interface-type = "ace";
+			reg = <0x6000 0x1000>;
+		};
+
+		secondary-if@7000 {
+			compatible = "arm,cci-550-ctrl-if";
+			interface-type = "ace";
+			reg = <0x6000 0x1000>;
+		};
+
+		pm-cntr@10000 {
+			compatible = "arm,cci-550-pmu";
+			reg = <0x10000 0x10000>;
+		};
+
+		pm-cntr@20000 {
+			compatible = "arm,cci-550-pmu";
+			reg = <0x20000 0x10000>;
+		};
+
+		pm-cntr@30000 {
+			compatible = "arm,cci-550-pmu";
+			reg = <0x30000 0x10000>;
+		};
+
+		pm-cntr@40000 {
+			compatible = "arm,cci-550-pmu";
+			reg = <0x40000 0x10000>;
+		};
+
+		pm-cntr@50000 {
+			compatible = "arm,cci-550-pmu";
+			reg = <0x50000 0x10000>;
+		};
+
+		pm-cntr@60000 {
+			compatible = "arm,cci-550-pmu";
+			reg = <0x60000 0x10000>;
+		};
+
+		pm-cntr@70000 {
+			compatible = "arm,cci-550-pmu";
+			reg = <0x70000 0x10000>;
+		};
+
+		pm-cntr@80000 {
+			compatible = "arm,cci-550-pmu";
+			reg = <0x80000 0x10000>;
+		};
+	};
+
+	timer: timer {
+		compatible = "arm,armv8-timer";
+		interrupt-parent = <&gic>;
+		interrupts =	<GIC_PPI 13 IRQ_TYPE_LEVEL_HIGH>,
+				<GIC_PPI 14 IRQ_TYPE_LEVEL_HIGH>,
+				<GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>,
+				<GIC_PPI 10 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
+	gic: interrupt-controller@20000000 {
+		compatible = "arm,gic-v3";
+		#interrupt-cells = <3>;
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+		interrupt-controller;
+		reg =	<0x0 0x20000000 0x0 0x10000>,	/* GICD */
+			<0x0 0x20060000 0x0 0x100000>;	/* GICR */
+
+		interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+
+		its: its@20040000 {
+			compatible = "arm,gic-v3-its";
+			msi-controller;
+			mbi-ranges = <256 224>;
+			reg = <0x0 0x20040000 0x0 0x10000>;
+		};
+	};
+
+	soc {
+		compatible = "simple-bus";
+		#address-cells = <0x2>;
+		#size-cells = <0x2>;
+		ranges = <0x0 0x0 0x0 0x0 0x100 0x0>;
+
+		uart0: serial@23f80000 {
+			compatible = "ns16550a";
+			reg = <0x0 0x23f80000 0x0 0x100>;
+			interrupts = <GIC_SPI 129 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <0x2>;
+			reg-io-width = <0x4>;
+			clocks = <&base_clk>;
+			current-speed = <9600>;
+			status = "disabled";
+		};
+
+		uart1: serial@23fc0000 {
+			compatible = "ns16550a";
+			reg = <0x0 0x23fc0000 0x0 0x100>;
+			interrupts = <GIC_SPI 130 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <0x2>;
+			reg-io-width = <0x4>;
+			clocks = <&base_clk>;
+			current-speed = <9600>;
+			status = "disabled";
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/cisco/crayar_argos.dts b/arch/arm64/boot/dts/cisco/crayar_argos.dts
new file mode 100644
index 000000000000..d415427c145f
--- /dev/null
+++ b/arch/arm64/boot/dts/cisco/crayar_argos.dts
@@ -0,0 +1,32 @@ 
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree file for Cisco CrayAR Argos EVB board.
+ *
+ * Copyright (C) 2022 Cisco
+ */
+
+/dts-v1/;
+#include "crayar.dtsi"
+
+/ {
+	compatible = "cisco,crayar-argos", "cisco,crayar";
+	model = "Cisco CrayAr Argos EVB";
+	version = <0x00000001>;
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:9600n8";
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x0 0x80000000 0x0 0x80000000>;
+	};
+};
+
+&uart0 {
+	status = "okay";
+};