Re: [PATCH v5 1/2] dt-bindings: nvmem: sec-qfprom: Add bindings for secure qfprom

From: Pavan Kondeti
Date: Thu Jul 27 2023 - 05:20:49 EST


On Mon, Jul 24, 2023 at 02:08:48PM +0530, Komal Bajaj wrote:
> This patch adds bindings for secure qfprom found in QCOM SOCs.
> Secure QFPROM driver is based on simple nvmem framework.
>
> Signed-off-by: Komal Bajaj <quic_kbajaj@xxxxxxxxxxx>
> ---
> .../bindings/nvmem/qcom,sec-qfprom.yaml | 58 +++++++++++++++++++
> 1 file changed, 58 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/nvmem/qcom,sec-qfprom.yaml
>

[...]

> +$id: http://devicetree.org/schemas/nvmem/qcom,sec-qfprom.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Technologies Inc, Secure QFPROM Efuse
> +
> +maintainers:
> + - Komal Bajaj <quic_kbajaj@xxxxxxxxxxx>
> +
> +description: |
> + For some of the Qualcomm SoC's, it is possible that
> + the qfprom region is protected from non-secure access.
> + In such situations, linux will have to use secure calls
> + to read the region.
> +
> +allOf:
> + - $ref: nvmem.yaml#
> +
> +properties:
> + compatible:
> + items:
> + - enum:
> + - qcom,qdu1000-sec-qfprom
> + - const: qcom,sec-qfprom
> +
> + reg:
> + items:
> + - description: The secure qfprom corrected region.
> +
> +required:
> + - compatible
> + - reg
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/qcom,gcc-sc7180.h>
> +

minor nitpick:

Since this device does not have any clocks, the above header inclusion
can be dropped.

> + soc {
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + efuse@221c8000 {
> + compatible = "qcom,qdu1000-sec-qfprom", "qcom,sec-qfprom";
> + reg = <0 0x221c8000 0 0x1000>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + multi_chan_ddr: multi-chan-ddr@12b {
> + reg = <0x12b 0x1>;
> + bits = <0 2>;
> + };
> + };
> + };
> +

Thanks,
Pavan