From: Peter Stuge <peter@stuge.se>
To: u-boot@lists.denx.de
Subject: [U-Boot] [coreboot] U-Boot-x86 / coreboot Integration
Date: Wed, 11 May 2011 02:46:53 +0200 [thread overview]
Message-ID: <20110511004653.26862.qmail@stuge.se> (raw)
In-Reply-To: <BANLkTikf=UfxrBrT8=Y4QUEfvo=ZL8xLHg@mail.gmail.com>
Graeme Russ wrote:
> >> Would be interesting to investigate implementing a stub in U-Boot to
> >> initialise and use VGA option ROMs
> >
> > VGA option ROMs call BIOS functions. ?So, one needs a BIOS
> > implementation (eg, SeaBIOS) or an emulator for them (eg, in
> > coreboot).
>
> How many functions are needed?
That depends completely on the particular VGA option ROM.
Having as complete a BIOS environment as can possibly be accomplished
is the only hope to making arbitrary option ROMs work.
Option ROMs are heavily tied into the BIOS concept.
> (surely not all the IDE and keyboard stuff for example)
I think I've seen some VGA option ROM get stuck waiting for
non-working keyboard BIOS services.
> - Could the bare minimum be implemented in a stripped-down modified
> SeaBIOS?
Not really.
> All this because stupid hardware manufacturers refuse to release details
> of how to do even the most basic of functions with their hardware :(
Welcome to coreboot.
//Peter
next prev parent reply other threads:[~2011-05-11 0:46 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-10 14:33 [U-Boot] U-Boot-x86 / coreboot Integration Graeme Russ
2011-05-10 16:08 ` [U-Boot] [coreboot] " Peter Stuge
2011-05-10 18:15 ` Wolfgang Denk
2011-05-10 23:44 ` Graeme Russ
2011-05-11 0:23 ` Kevin O'Connor
2011-05-11 0:40 ` Graeme Russ
2011-05-11 0:46 ` Peter Stuge [this message]
2011-05-11 1:05 ` Graeme Russ
2011-05-11 1:16 ` Kevin O'Connor
2011-05-11 0:53 ` Kevin O'Connor
2011-05-11 3:12 ` Graeme Russ
2011-05-11 3:20 ` Kevin O'Connor
2011-05-11 3:27 ` Graeme Russ
2011-05-11 3:51 ` Kevin O'Connor
2011-05-11 6:51 ` Wolfgang Denk
2011-05-10 18:03 ` [U-Boot] " Wolfgang Denk
2011-05-11 0:11 ` Graeme Russ
2011-05-11 0:38 ` [U-Boot] [coreboot] " Kevin O'Connor
2011-05-11 6:47 ` [U-Boot] " Wolfgang Denk
2011-05-15 19:20 ` [U-Boot] [coreboot] " Rudolf Marek
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