Compiling xf86-video-xgi driver for ARM

[Artemy Makarov]

Hello, everyone!

I have a ARM PC, similar to hp t5325, based on Marvell CPU and XGI Volari
z11 video chip. I've compiled xf86-video-xgi driver for it, but it doesn't
work.
Here's parts of Xorg.0.log:

X.Org X Server 1.12.4
Release Date: 2012-08-27
[    10.805] X Protocol Version 11, Revision 0
[    10.805] Build Operating System: Linux 3.2.0-4-mv78xx0 armv5tel Debian
[    10.805] Current Operating System: Linux ak1100 3.3.8 #1 PREEMPT Thu
Feb 13 17:29:00 MSK 2014 armv5tel
...
[    10.836] (II) Module ABI versions:
[    10.836]    X.Org ANSI C Emulation: 0.4
[    10.836]    X.Org Video Driver: 12.1
[    10.836]    X.Org XInput driver : 16.0
[    10.836]    X.Org Server Extension : 6.0
[    10.850] (--) PCI:*(0:0:1:0) 18ca:0027:18ca:0027 rev 0, Mem @
0xe0000000/67108864, 0xe4000000/262144, I/O @ 0x00001000/128
...
[    10.931] (II) LoadModule: "xgi"
[    10.932] (II) Loading /usr/lib/xorg/modules/drivers/xgi_drv.so
[    10.935] (II) Module xgi: vendor="X.Org Foundation"
[    10.935]    compiled for 1.12.4, module version = 6.1.6803
[    10.936]    Module class: X.Org Video Driver
[    10.936]    ABI class: X.Org Video Driver, version 12.1
[    10.937] (II) XGI: driver for XGI chipsets: Volari V8_V5_V3XT, Volari
Z7_Z9_Z9s,
        Volari Z9_Z9s, Volari Z11
[    10.937] (++) using VT number 7
[    10.997] (EE) No devices detected.

Looks like, driver can't see video chip.
I've successfully used this driver with previous debian version, and also
it detected video chip correctly, identifying it as "XGI Technology Inc.
(eXtreme Graphics Innovation) Z11/Z11M", instead of writing just ID, as you
can see in line [10.850] in log above.

How can I fix this problem? I tried using older kernel version with this
xorg version, but it also didn't help.
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