[yocto] [meta-raspberrypi][PATCH v2 2/2] raspberrypi3: set core frequency

Andrei Gherzan andrei at gherzan.ro
Tue Apr 12 19:51:47 PDT 2016


On Mon, Apr 11, 2016 at 05:54:45PM -0400, Trevor Woerner wrote:
> Pegging the core frequency at 250 avoids any fluctuations of the baud rate on
> the console.
>
> See:
> 	https://www.raspberrypi.org/forums/viewtopic.php?f=107&t=138223
>
> Signed-off-by: Trevor Woerner <twoerner at gmail.com>
> ---
>  conf/machine/raspberrypi3.conf | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/conf/machine/raspberrypi3.conf b/conf/machine/raspberrypi3.conf
> index cb6056e..81301c3 100644
> --- a/conf/machine/raspberrypi3.conf
> +++ b/conf/machine/raspberrypi3.conf
> @@ -9,3 +9,4 @@ MACHINE_EXTRA_RRECOMMENDS += "linux-firmware-brcm43430"
>  include conf/machine/raspberrypi2.conf
>
>  SERIAL_CONSOLE = "115200 ttyS0"
> +CORE_FREQ = "250"

I think it would be better to use enable_uart in config.txt for this
situation. Setting it to 1 would work on all the rpi versions with
current firmware (to be tested).

--
Andrei Gherzan
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: not available
URL: <http://lists.yoctoproject.org/pipermail/yocto/attachments/20160413/c6196dbf/attachment.pgp>


More information about the yocto mailing list