Functional testing of mainline vchiq driver

[Stefan Wahren]

Am 26.10.2016 um 09:50 schrieb Phil Elwell:
> On 26/10/2016 00:22, Michael Zoran wrote:
>> OK, I was able to boot a stock upstream kernel on a RPI-2.
>> The issue is the __overrides__ is needed.
> You don't need the override/parameter provided the value of the
> cache-line-size property is correct - 32 on BCM2835, 64 on BCM2836 and
> BCM2837.

Thanks for the clarification. I don't believe that the __overrides__ fix 
the problem for me, because i have a Raspberry Pi B so the 32 should be 
correct.

Could you please explain which cache line size this property should 
describe (VPU, ARM, L1, L2, ...)?

I guess this property shouldn't be exposed via DT or at least at a 
different place like cpu node.

>
>>                  vchiq: vchiq at 7e00b840 {
>>                          compatible = "brcm,bcm2835-vchiq";
>>                          reg = <0x7e00b840 0xf>;
>>                          interrupts = <0 2>;
>>                          cache-line-size = <32>;
>>                          firmware = <&firmware>;
>>                  };
>> 	};
> Downstream we could bake it into the DTBs now and remove the override,
> but it was useful at the time.
>
>
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