From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marek Vasut <marex@denx.de>
Date: Sat, 3 Mar 2012 00:25:06 +0100
Subject: [U-Boot] [PATCH 0/4] Add preliminary cache support to i.MX6
In-Reply-To: <4F5155DC.5050600@boundarydevices.com>
References: <1330729572-12642-1-git-send-email-eric.nelson@boundarydevices.com>
	<4F5155DC.5050600@boundarydevices.com>
Message-ID: <201203030025.07167.marex@denx.de>
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To: u-boot@lists.denx.de

> On 03/02/2012 04:06 PM, Eric Nelson wrote:
> > This series of patches defines the prerequisites for cache support on
> > i.MX6 to allow further driver development to occur.
> > 
> > It does not enable the use of the data cache by default. To enable
> > data cache, comment out this line in mx6qsabrelite.h or mx6qarm2.h:
> > 
> > #define CONFIG_SYS_DCACHE_OFF
> 
> I meant to add a note to this commit message indicating the
> drivers which are known to need work before cache is enabled:
> 
> 	- mmc
> 	- usb host
> 	- sata
> 
> Each of these is functional after issuing 'dcache off', but non-functional
> with dcache enabled.

USB is broken, but someone is working on that, search the mailing list:

[U-Boot] [PATCH] usb: align buffers at cache boundary