Hi Heiko,
On 2016年01月09日 03:16, Heiko Stuebner wrote:
Hi Xing,
Am Freitag, 8. Januar 2016, 19:31:38 schrieb Xing Zheng:
Actually, we need more cpu freqs which are 50MHz integer multiples.
Signed-off-by: Xing Zheng <zhengxing@xxxxxxxxxxxxxx>
---
arch/arm/boot/dts/rk3036.dtsi | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/rk3036.dtsi b/arch/arm/boot/dts/rk3036.dtsi
index 1cb5877..1a773eb 100644
--- a/arch/arm/boot/dts/rk3036.dtsi
+++ b/arch/arm/boot/dts/rk3036.dtsi
@@ -79,7 +79,18 @@
resets = <&cru SRST_CORE0>;
operating-points = <
/* KHz uV */
- 816000 1000000
+ 1200000 1200000
+ 1100000 1200000
+ 1000000 1200000
+ 900000 1200000
+ 800000 1200000
+ 700000 1200000
+ 600000 1200000
+ 500000 1200000
+ 400000 1200000
+ 300000 1200000
+ 200000 1200000
+ 100000 1200000
what about reducing the voltage as well?
>From rk3288-specific discussions I remember that reducing the frequency
without touching the voltage, didn't really save so much energy.
And it looks like it was running 816MHz@1.0V just fine as well.
I guess you should find out which voltages are really necessary for each
step.
Heiko
Thank you for your comments. :-)
Yes, these patches currently still in draft stage. Modify the frequency
of 816MHz is for mac apll patch can be FROMLIST for Kylin Board,
and will work cpu frequency table as a start.
We know you want to set the appropriate frequency of different batches
of The RK3036 SoCs take some time,so I just tested a fixed
high voltage 1.2v on my evb board, the frequency of the voltage to
ensure that we can work needed.
We'll start work dynamically adjust the voltage.
Thanks.
- Xing Zheng
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