[PATCH v8 2/2] arm-soc: Add support for arm-based tango4 platforms

[Måns Rullgård]

Mark Rutland <mark.rutland at arm.com> writes:

>> > +ENTRY(tango_smc)
>> > +	push	{lr}
>> > +	mov	ip, r1
>> > +	dsb
>> 
>> Did you ever get a straight answer on the dsb here?
>
> We didn't. Having a look just now, the earliest example appears to be
> in OMAP4 L2 support patches back in 2009 [1]. I was not able to find a
> rationale.

My guess is it was added out of frustration during early OMAP
development and forgotten.  Then it became cargo cult.

-- 
Måns Rullgård
mans at mansr.com