PPC scr_{read,write}w() cleanup (fwd)

[Geert Uytterhoeven]

On Thu, 28 Oct 1999, Cort Dougan wrote:
> The problem here is with the common build where we build in both vgacon and
> fb.

What's the problem there? If vgacon is enabled, scr_write() will be writew(),
i.e. little endian. But since scr_readw() == readw() is little endian as well,
it'll work fine.

Or am I missing something?

> I'm willing to switch PReP to fb entirely if it's reasonable that it will
> work on all PReP boxes.  Any suggestions?

I don't think it will work on all PReP boxes yet. There's no frame buffer
device for S3 [89]6[48] yet :-(

> } Does this work on your boxes? I really like to have this fixed.
> } 
> } Finally I found some time to sort out the PPC scr_{read,write}w() mess.
> } Now scr_{read,write}w() always swaps bytes if {vga,mda}con was compiled in,
> } while we did a runtime check before.
> } 
> } This patch matters specifically for people with PReP boxes, who may want to use
> } vgacon on one head and a real frame buffer device on either a second head or on
> } the first head after boot up (insmod *fb.o takes over vgacon).

    [...]

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven ----------------- Sony Suprastructure Center Europe (SUPC-E)
Geert.Uytterhoeven at sonycom.com ------------------- Sint-Stevens-Woluwestraat 55
Phone +32-2-7248632 Fax +32-2-7262686 ---------------- B-1130 Brussels, Belgium


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