-----Original Message-----
From: s_g...@telus.net <s_g...@telus.net>
Sent: February 2, 2019 11:29 AM
To: 'Krystian Lewandowski' <k.lewandow...@icloud.com>
Subject: RE: initial cpu speed on orangepi one and orangepi pc2 - probably
other H5 and H3 boards
Thank you for your reply.
The stock dtbs do not have the "operating-points-v2" and it follows that there
is no frequency set by the dtb.
Can you point me to a dtb block that has the property with an example of
setting the frequency.
One dtb:
clock@1c20000 {
reg = < 0x1c20000 0x400 >;
clocks = < 0x0e 0x0f >;
clock-names = "hosc\0losc";
#clock-cells = < 0x01 >;
#reset-cells = < 0x01 >;
compatible = "allwinner,sun8i-h3-ccu";
phandle = < 0x03 >;
};
Pc2 dtb:
clock@1c20000 {
reg = < 0x1c20000 0x400 >;
clocks = < 0x0e 0x0f >;
clock-names = "hosc\0losc";
#clock-cells = < 0x01 >;
#reset-cells = < 0x01 >;
compatible = "allwinner,sun50i-h5-ccu";
phandle = < 0x03 >;
};
Stephen Graf
-----Original Message-----
From: Krystian Lewandowski <k.lewandow...@icloud.com>
Sent: February 2, 2019 10:53 AM
To: s_g...@telus.net
Cc: arm@openbsd.org
Subject: Re: initial cpu speed on orangepi one and orangepi pc2 - probably
other H5 and H3 boards
Wiadomość napisana przez s_g...@telus.net w dniu 02.02.2019, o godz. 18:26:
>
> I just realized that the cpu speed on these boards defaults on start-up, the
> pc2 to 816Mhz and the one to 1008 Mhz. Both of these machines should be able
> to run at 1300Mhz.
> The pc2 speed can be changed with hw.setperf, but not the one.
> Can the sxiccmu module be changed to read a value from the dtb to use as the
> initial cpu speed?
>
Does the DT for OrangePi One have the "operating-points-v2" property?
It seems H3 is already supported by OpenBSD:
https://github.com/openbsd/src/blob/master/sys/dev/fdt/sxiccmu.c#L110
--
Krystian
