linux-kernel - Re: [PATCH 1/4] ARM: tegra: Unify tegra{20,30,114}_init

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Message-ID: <51180121.6040803@wwwdotorg.org>
Date:	Sun, 10 Feb 2013 13:20:49 -0700
From:	Stephen Warren <swarren@...dotorg.org>
To:	Marc Dietrich <marvin24@....de>
CC:	Hiroshi Doyu <hdoyu@...dia.com>, linux-tegra@...r.kernel.org,
	arnd@...db.de, Russell King <linux@....linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] ARM: tegra: Unify tegra{20,30,114}_init_early()

1On 02/10/2013 10:28 AM, Marc Dietrich wrote:
> On Friday 08 February 2013 10:09:10 Stephen Warren wrote:
>> On 02/08/2013 05:29 AM, Marc Dietrich wrote:
>>> Hiroshi,
>>>
>>> Am Freitag, 8. Februar 2013, 09:29:31 schrieb Hiroshi Doyu:
>>>> Refactored tegra{20,30,114}_init_early() so that we have the unified
>>>> tegra_init_early().
...
>>> are these ifdefs really needed? Multisoc kernels will enable them all
>>> anyway and there is a case structure which protects the assignments. Also
>>> the hotplug functions are very tiny, so there shouldn't be a big loss.
>>
>> The files that contain/implement those functions are separate for each
>> SoC and only included in the build when the individual SoCs are enabled.
>>
>> While multi-platform SoCs do make sense for distros, we also very
>> specifically want to support the case where only Tegra, and only a
>> single Tegra SoC, is enabled, hence this separation.
> 
> Huh? so tegra_defconfig is not supported?
> 
> grep "TEGRA_.*_SOC" tegra_defconfig:
> 
> CONFIG_ARCH_TEGRA_2x_SOC=y
> CONFIG_ARCH_TEGRA_3x_SOC=y

I don't understand the question.

But to be clear. There are now 3 variants of Tegra supported. (Tegra20,
Tegra30, Tegra114). We want to be able to build a minimal-size kernel
(e.g. for embedded applications) that supports just one, any combination
of two, or all three Tegra variants.
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