Re: [PATCH 3/8] ARM64: dts: Prepare configs for Amlogic Meson GXBaby

From: Andreas FÃrber
Date: Tue Mar 01 2016 - 10:18:57 EST


Am 01.03.2016 um 15:43 schrieb Sudeep Holla:
> On 29/02/16 23:44, Andreas FÃrber wrote:
>> + psci {
>> + compatible = "arm,psci";
>
> Any particular reason why PSCI v0.2 or above is not supported on this
> platform. PSCI v0.1 is very old now and I assume this platform is
> relatively new.

I am not affiliated with Amlogic or Tronsmart, so I cannot answer why.

>> + method = "smc";
>> + cpu_suspend = <0xc4000001>;
>> + cpu_off = <0x84000002>;
>> + cpu_on = <0xc4000003>;
>> + migrate = <0xc4000005>;
>
> Atleast the functions ids look like v0.2 or above. So check if it's
> actually v0.2 or above

If you let me know how! Just change the compatible string to -0.2 and
wait for some big boom or watch out for any misbehavior in particular?
Are there any memory locations to check the version or something visible
in U-Boot source code indicating it?

Regards,
Andreas

--
SUSE Linux GmbH, Maxfeldstr. 5, 90409 NÃrnberg, Germany
GF: Felix ImendÃrffer, Jane Smithard, Graham Norton; HRB 21284 (AG NÃrnberg)