Re: [PATCH v5 1/6] ARM: cygnus: Initial support for Broadcom Cygnus SoC

From: Scott Branden
Date: Wed Oct 22 2014 - 13:12:20 EST


On 14-10-22 01:22 AM, Arnd Bergmann wrote:
On Tuesday 21 October 2014 17:11:08 Scott Branden wrote:
OK, I will remove the "iProc SoC based Machine types". This was
grouping all iProc based SoCs under one menu and parallels what the
existing "Broadcom Mobile Soc Support" menu does.

I can create another patch removing the "Broadcom Mobile SoC Support"
menu if the ARM Maintainer now want all Broadcom devices are supposed to
be contained in a single level?

Sounds good, I missed that other menu going in.
I will add another patch to my set to correct this.

It can make sense to add 'comment' statements if you want to separate the
families.
Thanks - I will add this to my patchset.

I also noticed that there are a few configuration options that at first
seem pointless: ARCH_BCM_MOBILE_L2_CACHE and ARCH_BCM_MOBILE_SMP. I wonder
if it ever makes sense to disable these when the common options (CACHE_L2X0
and SMP) are enabled for another SoC. I'd normally like to see these as
hidden options that are always on whenever the core support for those
features is enabled, to avoid confusing users as well as bugs from the
combinatorial explosion.
I can clean up all but ARCH_BCM_MOBILE_L2_CACHE. This one is intertwined with SMC support and it looks like they want the option to turn on and off this feature. This L2/Trustzone support will need to be cleaned up at a later time. I heard Russell King says the PL310 cache code will be changing again soon. When I add PL310 Trustzone support for the Cygnus SoC I can have a look at cleaning it up for the Mobile/Kona base SoCs at the same time.

Arnd


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