projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | Kernel driver i2c-sis96x |
| 2 | ||
| 3 | Replaces 2.4.x i2c-sis645 | |
| 4 | ||
| 5 | Supported adapters: | |
| 6 | * Silicon Integrated Systems Corp (SiS) | |
| 7 | Any combination of these host bridges: | |
| 8 | 645, 645DX (aka 646), 648, 650, 651, 655, 735, 745, 746 | |
| 9 | and these south bridges: | |
| 806ba640 | 10 | 961, 962, 963(L) |
| 1da177e4 LT |
11 | |
| 12 | Author: Mark M. Hoffman <mhoffman@lightlink.com> | |
| 13 | ||
| 14 | Description | |
| 15 | ----------- | |
| 16 | ||
| 17 | This SMBus only driver is known to work on motherboards with the above | |
| 18 | named chipset combinations. The driver was developed without benefit of a | |
| 19 | proper datasheet from SiS. The SMBus registers are assumed compatible with | |
| 20 | those of the SiS630, although they are located in a completely different | |
| 21 | place. Thanks to Alexander Malysh <amalysh@web.de> for providing the | |
| 22 | SiS630 datasheet (and driver). | |
| 23 | ||
| 24 | The command "lspci" as root should produce something like these lines: | |
| 25 | ||
| 26 | 00:00.0 Host bridge: Silicon Integrated Systems [SiS]: Unknown device 0645 | |
| 27 | 00:02.0 ISA bridge: Silicon Integrated Systems [SiS] 85C503/5513 | |
| 28 | 00:02.1 SMBus: Silicon Integrated Systems [SiS]: Unknown device 0016 | |
| 29 | ||
| 30 | or perhaps this... | |
| 31 | ||
| 806ba640 | 32 | 00:00.0 Host bridge: Silicon Integrated Systems [SiS]: Unknown device 0645 |
| 1da177e4 LT |
33 | 00:02.0 ISA bridge: Silicon Integrated Systems [SiS]: Unknown device 0961 |
| 34 | 00:02.1 SMBus: Silicon Integrated Systems [SiS]: Unknown device 0016 | |
| 35 | ||
| 36 | (kernel versions later than 2.4.18 may fill in the "Unknown"s) | |
| 37 | ||
| 25985edc | 38 | If you can't see it please look on quirk_sis_96x_smbus |
| 1da177e4 LT |
39 | (drivers/pci/quirks.c) (also if southbridge detection fails) |
| 40 | ||
| 41 | I suspect that this driver could be made to work for the following SiS | |
| 42 | chipsets as well: 635, and 635T. If anyone owns a board with those chips | |
| 43 | AND is willing to risk crashing & burning an otherwise well-behaved kernel | |
| 44 | in the name of progress... please contact me at <mhoffman@lightlink.com> or | |
| 846557d3 | 45 | via the linux-i2c mailing list: <linux-i2c@vger.kernel.org>. Please send bug |
| 5d925fec | 46 | reports and/or success stories as well. |
| 1da177e4 LT |
47 | |
| 48 | ||
| 49 | TO DOs | |
| 50 | ------ | |
| 51 | ||
| 52 | * The driver does not support SMBus block reads/writes; I may add them if a | |
| 53 | scenario is found where they're needed. | |
| 54 | ||
| 55 | ||
| 56 | Thank You | |
| 57 | --------- | |
| 58 | ||
| 59 | Mark D. Studebaker <mdsxyz123@yahoo.com> | |
| 60 | - design hints and bug fixes | |
| 61 | Alexander Maylsh <amalysh@web.de> | |
| 62 | - ditto, plus an important datasheet... almost the one I really wanted | |
| be2a608b | 63 | Hans-Günter Lütke Uphues <hg_lu@t-online.de> |
| 1da177e4 LT |
64 | - patch for SiS735 |
| 65 | Robert Zwerus <arzie@dds.nl> | |
| 66 | - testing for SiS645DX | |
| 67 | Kianusch Sayah Karadji <kianusch@sk-tech.net> | |
| 68 | - patch for SiS645DX/962 | |
| 69 | Ken Healy | |
| 70 | - patch for SiS655 | |
| 71 | ||
| 72 | To anyone else who has written w/ feedback, thanks! | |
| 73 |