[PATCH v2 10/11] arm: Add Aspeed machine

[Joel Stanley]

On Fri, Apr 22, 2016 at 2:50 PM, Afzal Mohammed <afzal.mohd.ma at gmail.com> wrote:
> On Fri, Apr 22, 2016 at 09:02:54AM +1000, Benjamin Herrenschmidt wrote:
>> On Fri, 2016-04-22 at 08:28 +1000, Benjamin Herrenschmidt wrote:
>
>> > It may or may not be already correct, you don't necessarily have a
>> > serial enabled bootloader or it might be using a UART driver that
>> > doesn't use the 'standard' divisors etc... This just sanitizes it.
>
>> On a second thought ... if we chose to not support random crap vendor
>> uboots, we could make it a requirement that this register is already
>> set appropriately by the bootloader to match what's in the device-tree
>> I suppose...
>
> ARM Linux expects bootloader to initialize one serial port
> (Documentation/arm/Booting). Though mentioned as optional, recommended
> so far haven't seen one w/o that. And to debug at early boot stage
> like in assembly and where uart driver is not yet up, this helps in
> being able to debug w/o jtag.

I did some testing and on the palmetto we still get console with our
u-boot, so I'll drop the divisor change.

Cheers,

Joel