[coreboot] [PATCH]i82830 custom vga driver

Joseph Smith joe at settoplinux.org
Fri May 1 06:30:40 CEST 2009

On Thu, 30 Apr 2009 22:06:26 -0600, Myles Watson <mylesgw at gmail.com> wrote:
> On Thu, Apr 30, 2009 at 9:52 PM, Joseph Smith <joe at settoplinux.org>
>> This patch allows a custom vga driver that will give the flexibility to
> run
>> code after vga is initialized for tv-out. It is one of many patches to
>> come, including code to manipulate the graphics mmio registers, enable
> the
>> graphics i2c data lines, and tv encoder drivers.
> Should it be conditionally included via a config option?  Are there
> other boards with the same chipset that won't want to use this TV-out
> initialization?
Yup there will be, I hopefully I am going to try to make the code generic
enough so it can be used with other Intel 8xx and 9xx chipsets (alot of the
mmio registers are the same) and put it in a common locattion. Also the
tv-out drivers will open the door for other tv encoder chips, and LVDS
chips for laptops (this means things like blacklight control), etc. Anyways
the idea is to have a global config option for the tv chip, that way it
will know which code to run and if global config option is not defined it
will run just as the patch is now, the default vga init.

Joseph Smith

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