On Fri, Nov 20, 2020 at 06:11:11PM +0800, Alice Guo wrote:
> In order to be able to use NVMEM APIs to read soc unique ID, add the
> nvmem data cell and name for nvmem-cells to the "soc" node, and add a
> nvmem node which provides soc unique ID to efuse@30350000.
>
> v2: remove the subject prefix "LF-2571-3"
> v3: convert register addresses and sizes to hex
> v4: delete "stuff" in subject and commit message, add detailed
> description
>
> Signed-off-by: Alice Guo <alice.guo@xxxxxxx>
> ---
> arch/arm64/boot/dts/freescale/imx8mm.dtsi | 6 ++++++
> arch/arm64/boot/dts/freescale/imx8mn.dtsi | 6 ++++++
> arch/arm64/boot/dts/freescale/imx8mp.dtsi | 6 ++++++
> arch/arm64/boot/dts/freescale/imx8mq.dtsi | 6 ++++++
> 4 files changed, 24 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> index d457ce815e68..0e0edd5db07b 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> @@ -261,6 +261,8 @@
> #address-cells = <1>;
> #size-cells = <1>;
> ranges = <0x0 0x0 0x0 0x3e000000>;
> + nvmem-cells = <&imx8mm_uid>;
> + nvmem-cell-names = "soc_unique_id";
>
> aips1: bus@30000000 {
> compatible = "fsl,aips-bus", "simple-bus";
> @@ -518,6 +520,10 @@
> #address-cells = <1>;
> #size-cells = <1>;
>
> + imx8mm_uid: unique_id@410 {
Any reason why device node uses underscore, not a hyphen/dash? Other
fields are proper (it's also naming convention of DT spec and dtc W=2
will point it).
Best regards,
Krzysztof
> + reg = <0x4 0x8>;
> + };
> +
> cpu_speed_grade: speed-grade@10 {
> reg = <0x10 4>;
> };
