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Re: PCI VGA Card Initilization (SIS6326 / PT80)

To: Girish Gulawani <>
Subject: Re: PCI VGA Card Initilization (SIS6326 / PT80)
From: Geert Uytterhoeven <>
Date: Mon, 18 Mar 2002 16:19:00 +0100 (MET)
Cc: "MIPS/Linux List (SGI)" <>
In-reply-to: <033401c1ce8f$cbec7100$>
On Tue, 19 Mar 2002, Girish Gulawani wrote:
> i have a PCI/VGA card PT80 with SIS6326 chipset. i am using MILO BIOS source
> code. but i am not able to access the internal buffer which is typically at
> 0xA0000. even the BIOS ROM (0xC0000) read fails to show default value
> 0xA5A5. the expansion ROM is enabled in PCI by setting D0 bit to 1. however
> IO seems okay because the monitor actually switches from power down mode to
> normal mode. i have tried using both vgaraw1.c and vgaraw2.c files, but no
> success. could anybody help me to solve this problem.
> many thanks.

Are you using isa_readb() and friends to access ISA memory space?
Did you set up isa_slot_offset correctly with the start address of ISA memory
space on your MIPS box?



Geert Uytterhoeven -- There's lots of Linux beyond ia32 --

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                                            -- Linus Torvalds

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