FreeBSD on HardKernel's ODROID platform
George Mitchell
george+freebsd at m5p.com
Tue Nov 12 23:41:41 UTC 2013
On 11/12/13 11:45, Ian Lepore wrote:
> On Tue, 2013-11-12 at 06:14 -0500, George Mitchell wrote:
>> On 11/12/13 02:39, Ruslan Bukin wrote:
>>> [...]
>>> We suspect that uboot sets incorrect values for cpu clocks
>>> and/or voltage regulators. In result we have prefetch abort
>>> after first interrupt received.
>>> [...]
>>
>> Could this be connected to the persistent prefetch abort problem I've
>> been having in my Raspberry Pi? -- George Mitchell
>
> I suspected the same thing on my wandboard with the wrong-endian
> prefetch abort problem, and noticed that u-boot was violating some of
> the imx6 rules for voltage regulation, so with great hopes for a fix I
> added some code to the freebsd early kernel init to increase the voltage
> slightly and get all 3 regulators in range with each other according to
> what the manual said... it didn't help.
>
> -- Ian
>
Too bad, but thanks for checking. Any other progress on the problem?
-- George
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