xref: /openbmc/linux/Documentation/i2c/busses/i2c-sis630.rst (revision 976e3645923bdd2fe7893aae33fd7a21098bfb28)
1*ccf988b6SMauro Carvalho Chehab========================
2*ccf988b6SMauro Carvalho ChehabKernel driver i2c-sis630
3*ccf988b6SMauro Carvalho Chehab========================
4*ccf988b6SMauro Carvalho Chehab
5*ccf988b6SMauro Carvalho ChehabSupported adapters:
6*ccf988b6SMauro Carvalho Chehab  * Silicon Integrated Systems Corp (SiS)
7*ccf988b6SMauro Carvalho Chehab	630 chipset (Datasheet: available at http://www.sfr-fresh.com/linux)
8*ccf988b6SMauro Carvalho Chehab	730 chipset
9*ccf988b6SMauro Carvalho Chehab	964 chipset
10*ccf988b6SMauro Carvalho Chehab  * Possible other SiS chipsets ?
11*ccf988b6SMauro Carvalho Chehab
12*ccf988b6SMauro Carvalho ChehabAuthor:
13*ccf988b6SMauro Carvalho Chehab        - Alexander Malysh <amalysh@web.de>
14*ccf988b6SMauro Carvalho Chehab	- Amaury Decrême <amaury.decreme@gmail.com> - SiS964 support
15*ccf988b6SMauro Carvalho Chehab
16*ccf988b6SMauro Carvalho ChehabModule Parameters
17*ccf988b6SMauro Carvalho Chehab-----------------
18*ccf988b6SMauro Carvalho Chehab
19*ccf988b6SMauro Carvalho Chehab==================      =====================================================
20*ccf988b6SMauro Carvalho Chehabforce = [1|0]           Forcibly enable the SIS630. DANGEROUS!
21*ccf988b6SMauro Carvalho Chehab                        This can be interesting for chipsets not named
22*ccf988b6SMauro Carvalho Chehab                        above to check if it works for you chipset,
23*ccf988b6SMauro Carvalho Chehab                        but DANGEROUS!
24*ccf988b6SMauro Carvalho Chehab
25*ccf988b6SMauro Carvalho Chehabhigh_clock = [1|0]      Forcibly set Host Master Clock to 56KHz (default,
26*ccf988b6SMauro Carvalho Chehab			what your BIOS use). DANGEROUS! This should be a bit
27*ccf988b6SMauro Carvalho Chehab			faster, but freeze some systems (i.e. my Laptop).
28*ccf988b6SMauro Carvalho Chehab			SIS630/730 chip only.
29*ccf988b6SMauro Carvalho Chehab==================      =====================================================
30*ccf988b6SMauro Carvalho Chehab
31*ccf988b6SMauro Carvalho Chehab
32*ccf988b6SMauro Carvalho ChehabDescription
33*ccf988b6SMauro Carvalho Chehab-----------
34*ccf988b6SMauro Carvalho Chehab
35*ccf988b6SMauro Carvalho ChehabThis SMBus only driver is known to work on motherboards with the above
36*ccf988b6SMauro Carvalho Chehabnamed chipsets.
37*ccf988b6SMauro Carvalho Chehab
38*ccf988b6SMauro Carvalho ChehabIf you see something like this::
39*ccf988b6SMauro Carvalho Chehab
40*ccf988b6SMauro Carvalho Chehab  00:00.0 Host bridge: Silicon Integrated Systems [SiS] 630 Host (rev 31)
41*ccf988b6SMauro Carvalho Chehab  00:01.0 ISA bridge: Silicon Integrated Systems [SiS] 85C503/5513
42*ccf988b6SMauro Carvalho Chehab
43*ccf988b6SMauro Carvalho Chehabor like this::
44*ccf988b6SMauro Carvalho Chehab
45*ccf988b6SMauro Carvalho Chehab  00:00.0 Host bridge: Silicon Integrated Systems [SiS] 730 Host (rev 02)
46*ccf988b6SMauro Carvalho Chehab  00:01.0 ISA bridge: Silicon Integrated Systems [SiS] 85C503/5513
47*ccf988b6SMauro Carvalho Chehab
48*ccf988b6SMauro Carvalho Chehabor like this::
49*ccf988b6SMauro Carvalho Chehab
50*ccf988b6SMauro Carvalho Chehab  00:00.0 Host bridge: Silicon Integrated Systems [SiS] 760/M760 Host (rev 02)
51*ccf988b6SMauro Carvalho Chehab  00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS964 [MuTIOL Media IO]
52*ccf988b6SMauro Carvalho Chehab							LPC Controller (rev 36)
53*ccf988b6SMauro Carvalho Chehab
54*ccf988b6SMauro Carvalho Chehabin your ``lspci`` output , then this driver is for your chipset.
55*ccf988b6SMauro Carvalho Chehab
56*ccf988b6SMauro Carvalho ChehabThank You
57*ccf988b6SMauro Carvalho Chehab---------
58*ccf988b6SMauro Carvalho ChehabPhilip Edelbrock <phil@netroedge.com>
59*ccf988b6SMauro Carvalho Chehab- testing SiS730 support
60*ccf988b6SMauro Carvalho ChehabMark M. Hoffman <mhoffman@lightlink.com>
61*ccf988b6SMauro Carvalho Chehab- bug fixes
62*ccf988b6SMauro Carvalho Chehab
63*ccf988b6SMauro Carvalho ChehabTo anyone else which I forgot here ;), thanks!
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