On Mon, 6 Mar 2017 09:23:39 -0600
Dave Gerlach <d-gerlach@xxxxxx> wrote:
> Although all PG2.0 silicon may not support 1GHz OPP for the MPU, older
> Beaglebone Blacks may have PG2.0 silicon populated and these
> particular parts are guaranteed to support the OPP, so enable it for
> PG2.0 on am335x-boneblack only.
>
> Signed-off-by: Dave Gerlach <d-gerlach@xxxxxx>
Reviewed-by: Lukasz Majewski <lukma@xxxxxxx>
> ---
> arch/arm/boot/dts/am335x-boneblack.dts | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
> diff --git a/arch/arm/boot/dts/am335x-boneblack.dts
> b/arch/arm/boot/dts/am335x-boneblack.dts index
> 77273df1a028..935ed17d22e4 100644 ---
> a/arch/arm/boot/dts/am335x-boneblack.dts +++
> b/arch/arm/boot/dts/am335x-boneblack.dts @@ -15,3 +15,14 @@
> model = "TI AM335x BeagleBone Black";
> compatible = "ti,am335x-bone-black", "ti,am335x-bone",
> "ti,am33xx"; };
> +
> +&cpu0_opp_table {
> + /*
> + * All PG 2.0 silicon may not support 1GHz but some of the
> early
> + * BeagleBone Blacks have PG 2.0 silicon which is guaranteed
> + * to support 1GHz OPP so enable it for PG 2.0 on this board.
> + */
> + oppnitro@1000000000 {
> + opp-supported-hw = <0x06 0x0100>;
> + };
> +};
Best regards,
Lukasz Majewski
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