linux-kernel - Re: Early console confusion

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Message-ID: <4C9A4A4F.3060909@linux.intel.com>
Date:	Wed, 22 Sep 2010 11:26:23 -0700
From:	"H. Peter Anvin" <hpa@...ux.intel.com>
To:	Bjorn Helgaas <bjorn.helgaas@...com>
CC:	"H. Peter Anvin" <hpa@...or.com>, mingo@...hat.com,
	linux-kernel@...r.kernel.org, yinghai@...nel.org,
	just.for.lkml@...glemail.com, tglx@...utronix.de,
	Feng Tang <feng.tang@...el.com>,
	Alan Cox <alan@...ux.intel.com>, greg@...ah.com
Subject: Re: Early console confusion

On 09/22/2010 11:21 AM, Bjorn Helgaas wrote:
> 
> I think earlycon and earlyprintk have minimal backwards compatibility
> problems, since they're mostly for developers.  And if we decided
> we did need to keep them, they could be undocumented and implemented
> on top of "console=" with the appropriate explicit device.
> 

The problem is that they're actually hard-coded into the firmware of
some embedded devices.

	-hpa
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