[PATCH 08/11] ARM: dts: rockchip: add operating points and armclk references

[Doug Anderson]

Heiko,

On Fri, Sep 5, 2014 at 4:06 PM, Heiko Stuebner <heiko at sntech.de> wrote:
> Add basic OPP entries for current supported Rockchip SoCs.
> The operating points are currently very conservative, so individual
> boards may opt to redefine them.
>
> Signed-off-by: Heiko Stuebner <heiko at sntech.de>
> ---
>  arch/arm/boot/dts/rk3066a.dtsi | 12 +++++++++++-
>  arch/arm/boot/dts/rk3188.dtsi  | 15 ++++++++++++++-
>  arch/arm/boot/dts/rk3288.dtsi  | 17 ++++++++++++++++-
>  3 files changed, 41 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm/boot/dts/rk3066a.dtsi b/arch/arm/boot/dts/rk3066a.dtsi
> index 879a818..572c30b 100644
> --- a/arch/arm/boot/dts/rk3066a.dtsi
> +++ b/arch/arm/boot/dts/rk3066a.dtsi
> @@ -26,11 +26,21 @@
>                 #size-cells = <0>;
>                 enable-method = "rockchip,rk3066-smp";
>
> -               cpu at 0 {
> +               cpu0: cpu at 0 {
>                         device_type = "cpu";
>                         compatible = "arm,cortex-a9";
>                         next-level-cache = <&L2>;
>                         reg = <0x0>;
> +                       operating-points = <
> +                               /* kHz    uV */
> +                               1008000 1075000
> +                                816000 1025000
> +                                600000 1025000
> +                                504000 1000000
> +                                312000  975000
> +                       >;
> +                       clock-latency = <40000>;
> +                       clocks = <&cru ARMCLK>;
>                 };
>                 cpu at 1 {
>                         device_type = "cpu";
> diff --git a/arch/arm/boot/dts/rk3188.dtsi b/arch/arm/boot/dts/rk3188.dtsi
> index ee801a9..e237216 100644
> --- a/arch/arm/boot/dts/rk3188.dtsi
> +++ b/arch/arm/boot/dts/rk3188.dtsi
> @@ -26,11 +26,24 @@
>                 #size-cells = <0>;
>                 enable-method = "rockchip,rk3066-smp";
>
> -               cpu at 0 {
> +               cpu0: cpu at 0 {
>                         device_type = "cpu";
>                         compatible = "arm,cortex-a9";
>                         next-level-cache = <&L2>;
>                         reg = <0x0>;
> +                       operating-points = <
> +                               /* kHz    uV */
> +                               1608000 1350000
> +                               1416000 1250000
> +                               1200000 1150000
> +                               1008000 1075000
> +                                816000  975000
> +                                600000  950000
> +                                504000  925000
> +                                312000  875000
> +                       >;
> +                       clock-latency = <40000>;
> +                       clocks = <&cru ARMCLK>;
>                 };
>                 cpu at 1 {
>                         device_type = "cpu";
> diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
> index 5950b0a..9275a47 100644
> --- a/arch/arm/boot/dts/rk3288.dtsi
> +++ b/arch/arm/boot/dts/rk3288.dtsi
> @@ -40,10 +40,25 @@
>                 #address-cells = <1>;
>                 #size-cells = <0>;
>
> -               cpu at 500 {
> +               cpu0: cpu at 500 {
>                         device_type = "cpu";
>                         compatible = "arm,cortex-a12";
>                         reg = <0x500>;
> +                       operating-points = <
> +                               /* KHz    uV */
> +                               1416000 1150000
> +                               1200000 1050000
> +                               1008000 1000000
> +                               816000  950000
> +                               696000  900000
> +                               600000  850000
> +                               408000  850000
> +                               312000  850000
> +                               216000  850000
> +                               126000  850000
> +                       >;

This doesn't quite match the ordering that Kever put up most recently
at <https://chromium-review.googlesource.com/#/c/211862/2/arch/arm/boot/dts/rk3288.dtsi>.
Specifically, he has:

1800000 1300000
1608000 1200000
1416000 1150000
1200000 1100000
1008000 1050000
[ 816000 1000000
600000 900000
408000 850000
216000 850000
126000 850000

-Doug