From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 15/23] Alternative mmc structure to support pxa168, pxa910, mmp2 family SD
Date: Wed, 22 Dec 2010 15:10:36 +0100 [thread overview]
Message-ID: <201012221510.36878.arnd@arndb.de> (raw)
In-Reply-To: <22DA8CC3-8CB2-4EEE-AAD8-8599BD589CCE@marvell.com>
On Wednesday 22 December 2010 08:09:58 Philip Rakity wrote:
> The PXA168, PXA910, and MMP2 are not the same SOC. The family
> of embedded processors have slightly different internal blocks
> for SD, I2C, etc. Sometimes it is important to know which SOC
> is being used due to differences in the silicon. Sometimes it
> is important to know evaluation boards should be selected based
> on the SOC on the board.
This looks like you're moving in the wrong direction.
If the chips are just slightly different, you'd certainly
want to make sure that you can detect the difference at runtime,
and be able to use the same kernel on all of the variants.
Instead, you promote each of the SOCs to a top-level family
in this patch, which makes it impossible to build a kernel
for more than one of them at a time.
Arnd
next prev parent reply other threads:[~2010-12-22 14:10 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-22 7:09 [PATCH 15/23] Alternative mmc structure to support pxa168, pxa910, mmp2 family SD Philip Rakity
2010-12-22 14:10 ` Arnd Bergmann [this message]
2010-12-22 22:58 ` Philip Rakity
2010-12-31 5:46 ` Haojian Zhuang
2010-12-31 6:03 ` Philip Rakity
2010-12-31 6:46 ` Haojian Zhuang
2010-12-31 22:08 ` Mark Brown
2011-01-04 6:10 ` zhangfei gao
2011-01-06 19:29 ` Arnd Bergmann
2011-01-07 16:48 ` Philip Rakity
2011-01-07 17:51 ` Arnd Bergmann
2011-01-07 19:26 ` [PATCH 1/2] mach-mmp: MMP2 Drive Strength FAST using wrong value Philip Rakity
2011-01-07 19:27 ` [PATCH 2/2] mach-mmp: PXA910 " Philip Rakity
2011-01-08 5:28 ` [PATCH] mach-mmp: Fix Kconfig to allow correct PXA Selections Philip Rakity
2011-01-12 23:58 ` [PATCH 2/2] mach-mmp: PXA910 Drive Strength FAST using wrong value Eric Miao
2011-01-12 23:03 ` [PATCH 1/2] mach-mmp: MMP2 " Eric Miao
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