linux-kernel - Re: Using s3virge card in Sun Blade 2000

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Date:	Mon, 03 Jan 2011 10:58:27 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	alex.buell@...ted.org.uk
Cc:	linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: Using s3virge card in Sun Blade 2000

From: Alex Buell <alex.buell@...ted.org.uk>
Date: Mon, 03 Jan 2011 16:32:16 +0000

> I'm aware the s3fb driver has big endian issues, I can help fix those
> issues so I can get the card working. Or in other words, I'd welcome
> advice on how to proceed with this. 

It's not endian issues, this driver has other problems.

It uses the VGA register accessors with a NULL regbase, which is not
going to work on sparc64.

It needs to access the VGA register space relative to the I/O space
of the PCI controller domain it is behind.

Probably if you replace the NULL values passes to vga_r*() and
vga_w*() with the I/O space resource base of the chip (should be
resource "1") it might work.
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