Re: [PATCH v2 3/4] ARM: dts: da850-evm: enable cpufreq

From: Adam Ford
Date: Tue Mar 26 2019 - 10:16:07 EST


On Fri, Mar 22, 2019 at 8:31 AM Bartosz Golaszewski <brgl@xxxxxxxx> wrote:
>
> From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
>
> Enable cpufreq-dt support for da850-evm. The cvdd is supplied by the
> tps6507 pmic with configurable output voltage, so all operating points
> can be enabled.
>
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
> ---
> arch/arm/boot/dts/da850-evm.dts | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
> index f04bc3e15332..a0a1b3dccf37 100644
> --- a/arch/arm/boot/dts/da850-evm.dts
> +++ b/arch/arm/boot/dts/da850-evm.dts
> @@ -191,6 +191,18 @@
> };
> };
>
> +&cpu {
> + cpu-supply = <&vdcdc3_reg>;
> +};
> +
> +&opp_375 {
> + status = "okay";
> +};
> +
> +&opp_456 {
> + status = "okay";
> +};

I pulled part number for the processor used in the da850evm that Logic
PD produces, and it shows a imit of 375MHz. I cross-referenced the
processor part number with the description from a distributor, and the
part number also lists 375MHz, so I think we should leave 456
disabled.

adam
> +
> &sata {
> status = "okay";
> };
> --
> 2.20.1
>
>
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