From mboxrd@z Thu Jan  1 00:00:00 1970
From: York Sun <yorksun@freescale.com>
Date: Wed, 25 Sep 2013 16:30:17 -0700
Subject: [U-Boot] When to create a SoC directory for ARM
In-Reply-To: <20130919213937.B3D4938043B@gemini.denx.de>
References: <52387C5C.8010504@freescale.com>
	<20130919205713.GB5273@bill-the-cat>
	<523B67D2.2050107@freescale.com>
	<20130919213937.B3D4938043B@gemini.denx.de>
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To: u-boot@lists.denx.de

Dear Wolfgang,

I failed to find the guideline, here is my question. Pardon me if this
is a dump question as I am still new to ARM.

As David Feng post his patch set to add ARMv8 support, I am trying to
enable it for Freescale implementation. Let's name it as LS2 for this
discussion. I am thinking to reuse as much as possible for existing
codes, which include copying some header files from powerpc partially. I
noticed the SoC field in boards.cfg file and I am wondering how to use
it effectively. I want to put LS2 specific headers to
arch/arm/include/asm/arch-ls2. Do I need to copy all files from
arch/arm/include/asm/arch-armv8/? There aren't many but I see mmu.h is
included in start.S. I have been searching case like this in ARMv7 but
didn't see shared header file (maybe I missed it). Please advise.

Regards,

York