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    Subject2.6.6 : bad PCI device ID for SiS ISA bridge => SiS900 eth0: Can not find ISA bridge
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    1- bad PCI device ID for SiS ISA bridge

    2- In 2.6.3-rc2 (and 2.4.x), the PCI device ID of the ISA bridge of the
    SiS630e is 0x0008. This ID is used by sis900.c in order to get the MAC
    adress.
    In 2.6.6, the PCI device ID of the ISA bridge of the SiS630E is 0x0018. The
    SiS900 driver fail to read MAC adress and exit with the following message :
    eth0: Can not find ISA bridge

    3- SIS630E, ISA bridge, PCI Device ID, SIS900

    4- aneto:~# cat /proc/version
    Linux version 2.6.6 (ebenard@vignemale) (version gcc 3.3.3 (Debian 20040429))
    #2 Sun May 16 19:34:22 CEST 2004

    5- No oops

    6-
    2.6.3-rc2 :
    aneto:~# cat /sys/bus/pci/devices/0000\:00\:01.0/device
    0x0008
    aneto:~# cat /proc/bus/pci/devices
    .../...
    0008 10390008 0 00000000 00000000 00000000
    00000000 00000000 00000000 00000000 00000000
    00000000 00000000 00000000 00000000
    0000000000000000
    0009 10390900 c 0000da01 f3ffd000 00000000
    00000000 00000000 00000000 f3fc0000 00000100
    00001000 00000000 00000000 00000000
    0000000000020000 sis900
    .../...
    aneto:~# lspci
    .../...
    0000:00:01.0 ISA bridge: Silicon Integrated Systems [SiS] SiS85C503/5513 (LPC
    Bridge)
    0000:00:01.1 Ethernet controller: Silicon Integrated Systems [SiS] SiS900 PCI
    Fast Ethernet (rev 81)
    .../...

    2.6.6 :
    aneto:~# cat /sys/bus/pci/devices/0000\:00\:01.0/device
    0x0018
    aneto:~# cat /proc/bus/pci/devices
    .../...
    0008 10390018 0 00000000 00000000 00000000
    00000000 00000000 00000000 00000000 00000000
    00000000 00000000 00000000 00000000
    0000000000000000
    0009 10390900 c 0000da01 f3ffd000 00000000
    00000000 00000000 00000000 f3fc0000 00000100
    00001000 00000000 00000000 00000000
    0000000000020000 sis900
    .../...
    aneto:~# lspci
    .../...
    0000:00:01.0 ISA bridge: Silicon Integrated Systems [SiS] SiS85C503/5513 (LPC
    Bridge)
    0000:00:01.1 Ethernet controller: Silicon Integrated Systems [SiS] SiS900 PCI
    Fast Ethernet (rev 81)
    .../...


    7- Linux aneto 2.6.6 #2 Sun May 16 19:34:22 CEST 2004 i686 GNU/Linux

    Gnu C 3.3.3
    Gnu make 3.80
    binutils 2.14.90.0.7
    util-linux 2.12
    mount 2.12
    module-init-tools 3.0-pre10
    e2fsprogs 1.35
    pcmcia-cs 3.2.5
    PPP 2.4.2
    Linux C Library 2.3.2
    Dynamic linker (ldd) 2.3.2
    Procps 3.2.1
    Net-tools 1.60
    Console-tools 0.2.3
    Sh-utils 5.0.91
    Modules Loaded hostap_crypt_wep hostap_cs ipt_TOS ipt_MASQUER
    ADE ipt_REJECT ipt_pkttype ipt_LOG ipt_TCPMSS ipt_state ip_nat_irc ip
    _nat_tftp ip_nat_ftp ip_conntrack_irc ip_conntrack_tftp ip_conntrack_
    ftp ipt_multiport ipt_conntrack iptable_filter iptable_mangle iptable
    _nat ip_conntrack ip_tables lp bridge hostap eagle_usb


    8- A quick fix to get sis900.c running (which doesn't explain why the PCI
    Device ID changed from 2.6.3-rc2 to 2.6.6) :
    change line 263 from
    if ((isa_bridge = pci_find_device(0x1039, 0x0008, isa_bridge)) == NULL
    to
    if ((isa_bridge = pci_find_device(0x1039, 0x0018, isa_bridge)) == NULL

    Eric
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