Re: ARM: shmobile: r8a73a4: Instantiate GIC from C board code in legacy builds

[Marc Zyngier <marc.zyngier@arm.com>]

On 21/01/15 10:38, Geert Uytterhoeven wrote:
> On Wed, Jan 21, 2015 at 11:15 AM, Marc Zyngier <marc.zyngier@arm.com> wrote:
>>> arch_timer: No interrupt available, giving up
>>> sched_clock: 32 bits at 128 Hz, resolution 7812500ns, wraps every 16777216000000000ns
>>> Console: colour dummy device 80x30
>>> Calibrating delay loop...
>>
>> That's because you seems to be using a horrible mix of DT devices (arch
>> timers, for example), and hardcoded devices, with the added complexity
>> of having secondary interrupt controllers.
>>
>> The only workaround I can think of is to patch the hardcoded interrupts
>> at boot time with something similar to what I cooked there:
>>
>> http://www.spinics.net/lists/linux-omap/msg114814.html
>>
>> At the moment, you either end-up with no interrupts for the DT devices
>> (as above), or with an exploding system because the hardcoded interrupts
>> completely wrong (as in the original post).
>>
>> I don't have access to such hardware, but I'm happy to help.
> 
> Thanks!
> 
> That solution looks convoluted to me, especially since we do have patches
> available to convert r8a73a4 to multiplatform-only.

If you don't mind having a cycle with a broken board, my vote is to go
for full multiplatform. It makes my job much easier! ;-)

> That won't make it in v3.19 this late in the cycle, but if we push hard, v3.20
> should be doable IMHO.

OK. In any case, let me know if I can help you with this transition.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...