diff options
| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
| commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
| tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /Documentation/i2c/busses/i2c-ali1535 | |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'Documentation/i2c/busses/i2c-ali1535')
| -rw-r--r-- | Documentation/i2c/busses/i2c-ali1535 | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/Documentation/i2c/busses/i2c-ali1535 b/Documentation/i2c/busses/i2c-ali1535 new file mode 100644 index 00000000000..0db3b4c74ad --- /dev/null +++ b/Documentation/i2c/busses/i2c-ali1535 @@ -0,0 +1,42 @@ +Kernel driver i2c-ali1535 + +Supported adapters: + * Acer Labs, Inc. ALI 1535 (south bridge) + Datasheet: Now under NDA + http://www.ali.com.tw/eng/support/datasheet_request.php + +Authors: + Frodo Looijaard <frodol@dds.nl>, + Philip Edelbrock <phil@netroedge.com>, + Mark D. Studebaker <mdsxyz123@yahoo.com>, + Dan Eaton <dan.eaton@rocketlogix.com>, + Stephen Rousset<stephen.rousset@rocketlogix.com> + +Description +----------- + +This is the driver for the SMB Host controller on Acer Labs Inc. (ALI) +M1535 South Bridge. + +The M1535 is a South bridge for portable systems. It is very similar to the +M15x3 South bridges also produced by Acer Labs Inc. Some of the registers +within the part have moved and some have been redefined slightly. +Additionally, the sequencing of the SMBus transactions has been modified to +be more consistent with the sequencing recommended by the manufacturer and +observed through testing. These changes are reflected in this driver and +can be identified by comparing this driver to the i2c-ali15x3 driver. For +an overview of these chips see http://www.acerlabs.com + +The SMB controller is part of the M7101 device, which is an ACPI-compliant +Power Management Unit (PMU). + +The whole M7101 device has to be enabled for the SMB to work. You can't +just enable the SMB alone. The SMB and the ACPI have separate I/O spaces. +We make sure that the SMB is enabled. We leave the ACPI alone. + + +Features +-------- + +This driver controls the SMB Host only. This driver does not use +interrupts. |