[U-Boot] [PATCH] video: cfb_console: flush dcache for frame buffer in DRAM

[Mike Frysinger]

On Thursday 19 July 2012 11:49:20 Marek Vasut wrote:
> Dear Mike Frysinger,
> > On Tuesday 05 June 2012 03:28:40 Anatolij Gustschin wrote:
> > > On Sat, 28 Apr 2012 17:04:07 +0200 Anatolij Gustschin wrote:
> > > > Data cache flushing is required for frame buffer in RAM to fix the
> > > > distorted console text output. Currently this text distortion is
> > > > observed with cfb on beageboard and N900 when running with data
> > > > cache enabled.
> > > 
> > > Applied to u-boot-video/master after rebasing and fixing commit log.
> > 
> > this patch is still wrong for the reasons i cited earlier.  your cache
> > functions are broken, not the driver.
> 
> The cache stuff is completely borked on ARM, I have no idea why people
> enable it.

in this case, it's making it worse for other arches, and setting bad 
precedents in the process

i think Simon's solution is a good middle ground:
	lcd: Add support for flushing LCD fb from dcache after update
-mike
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