[PATCH v2] dt-bindings: firmware: xilinx: Describe soc-nvmem subnode

[PATCH v2] dt-bindings: firmware: xilinx: Describe soc-nvmem subnode

[Michal Simek]

Describe soc-nvmem subnode as the part of firmware node. The name can't be
pure nvmem because dt-schema already defines it as array property that's
why different name should be used.

Signed-off-by: Michal Simek <michal.simek@amd.com>
---

Changes in v2:
- Fix typo in subject
- Make example bigger requested by Conor

Dt binding for nvmem node has been already merged and it is the part of
linux-next tree.
Here is the reference to it just in case:
https://lore.kernel.org/r/170635581622.41421.8980881999042944764.b4-ty@linaro.org

v1 available here:
https://lore.kernel.org/r/3869498c995cbb123127122f429e90de0a3f4014.1706531104.git.michal.simek@amd.com

---
 .../firmware/xilinx/xlnx,zynqmp-firmware.yaml  | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml
index 870b94813a43..741f17c830f4 100644
--- a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml
+++ b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml
@@ -62,6 +62,12 @@ properties:
       interface.
     type: object
 
+  soc-nvmem:
+    $ref: /schemas/nvmem/xlnx,zynqmp-nvmem.yaml#
+    description: The ZynqMP MPSoC provides access to the hardware related data
+      like SOC revision, IDCODE and specific purpose efuses.
+    type: object
+
   pcap:
     $ref: /schemas/fpga/xlnx,zynqmp-pcap-fpga.yaml#
     description: The ZynqMP SoC uses the PCAP (Processor Configuration Port) to
@@ -110,6 +116,18 @@ examples:
     firmware {
       zynqmp_firmware: zynqmp-firmware {
         #power-domain-cells = <1>;
+        soc-nvmem {
+          compatible = "xlnx,zynqmp-nvmem-fw";
+          nvmem-layout {
+            compatible = "fixed-layout";
+            #address-cells = <1>;
+            #size-cells = <1>;
+
+            soc_revision: soc-revision@0 {
+                reg = <0x0 0x4>;
+            };
+          };
+        };
         gpio {
           compatible = "xlnx,zynqmp-gpio-modepin";
           gpio-controller;
-- 
2.36.1


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Re: [PATCH v2] dt-bindings: firmware: xilinx: Describe soc-nvmem subnode

[Conor Dooley]

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On Wed, Jan 31, 2024 at 10:17:28AM +0100, Michal Simek wrote:
> Describe soc-nvmem subnode as the part of firmware node. The name can't be
> pure nvmem because dt-schema already defines it as array property that's
> why different name should be used.
> 
> Signed-off-by: Michal Simek <michal.simek@amd.com>

Acked-by: Conor Dooley <conor.dooley@microchip.com>

Cheers,
Conor.

> ---
> 
> Changes in v2:
> - Fix typo in subject
> - Make example bigger requested by Conor
> 
> Dt binding for nvmem node has been already merged and it is the part of
> linux-next tree.
> Here is the reference to it just in case:
> https://lore.kernel.org/r/170635581622.41421.8980881999042944764.b4-ty@linaro.org
> 
> v1 available here:
> https://lore.kernel.org/r/3869498c995cbb123127122f429e90de0a3f4014.1706531104.git.michal.simek@amd.com
> 
> ---
>  .../firmware/xilinx/xlnx,zynqmp-firmware.yaml  | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml
> index 870b94813a43..741f17c830f4 100644
> --- a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml
> +++ b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml
> @@ -62,6 +62,12 @@ properties:
>        interface.
>      type: object
>  
> +  soc-nvmem:
> +    $ref: /schemas/nvmem/xlnx,zynqmp-nvmem.yaml#
> +    description: The ZynqMP MPSoC provides access to the hardware related data
> +      like SOC revision, IDCODE and specific purpose efuses.
> +    type: object
> +
>    pcap:
>      $ref: /schemas/fpga/xlnx,zynqmp-pcap-fpga.yaml#
>      description: The ZynqMP SoC uses the PCAP (Processor Configuration Port) to
> @@ -110,6 +116,18 @@ examples:
>      firmware {
>        zynqmp_firmware: zynqmp-firmware {
>          #power-domain-cells = <1>;
> +        soc-nvmem {
> +          compatible = "xlnx,zynqmp-nvmem-fw";
> +          nvmem-layout {
> +            compatible = "fixed-layout";
> +            #address-cells = <1>;
> +            #size-cells = <1>;
> +
> +            soc_revision: soc-revision@0 {
> +                reg = <0x0 0x4>;
> +            };
> +          };
> +        };
>          gpio {
>            compatible = "xlnx,zynqmp-gpio-modepin";
>            gpio-controller;
> -- 
> 2.36.1
> 

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Re: [PATCH v2] dt-bindings: firmware: xilinx: Describe soc-nvmem subnode

[Michal Simek]

On 1/31/24 10:17, Michal Simek wrote:
> Describe soc-nvmem subnode as the part of firmware node. The name can't be
> pure nvmem because dt-schema already defines it as array property that's
> why different name should be used.
> 
> Signed-off-by: Michal Simek <michal.simek@amd.com>
> ---
> 
> Changes in v2:
> - Fix typo in subject
> - Make example bigger requested by Conor
> 
> Dt binding for nvmem node has been already merged and it is the part of
> linux-next tree.
> Here is the reference to it just in case:
> https://lore.kernel.org/r/170635581622.41421.8980881999042944764.b4-ty@linaro.org
> 
> v1 available here:
> https://lore.kernel.org/r/3869498c995cbb123127122f429e90de0a3f4014.1706531104.git.michal.simek@amd.com
> 
> ---
>   .../firmware/xilinx/xlnx,zynqmp-firmware.yaml  | 18 ++++++++++++++++++
>   1 file changed, 18 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml
> index 870b94813a43..741f17c830f4 100644
> --- a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml
> +++ b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml
> @@ -62,6 +62,12 @@ properties:
>         interface.
>       type: object
>   
> +  soc-nvmem:
> +    $ref: /schemas/nvmem/xlnx,zynqmp-nvmem.yaml#
> +    description: The ZynqMP MPSoC provides access to the hardware related data
> +      like SOC revision, IDCODE and specific purpose efuses.
> +    type: object
> +
>     pcap:
>       $ref: /schemas/fpga/xlnx,zynqmp-pcap-fpga.yaml#
>       description: The ZynqMP SoC uses the PCAP (Processor Configuration Port) to
> @@ -110,6 +116,18 @@ examples:
>       firmware {
>         zynqmp_firmware: zynqmp-firmware {
>           #power-domain-cells = <1>;
> +        soc-nvmem {
> +          compatible = "xlnx,zynqmp-nvmem-fw";
> +          nvmem-layout {
> +            compatible = "fixed-layout";
> +            #address-cells = <1>;
> +            #size-cells = <1>;
> +
> +            soc_revision: soc-revision@0 {
> +                reg = <0x0 0x4>;
> +            };
> +          };
> +        };
>           gpio {
>             compatible = "xlnx,zynqmp-gpio-modepin";
>             gpio-controller;

Applied.
M

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