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

Mark Rutland [off-list ref] writes:

quoted

quoted

+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.

-- 
M?ns Rullg?rd
mans at mansr.com