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Diffstat (limited to 'src/ec/compal/ene932/documentation.txt')
| -rw-r--r-- | src/ec/compal/ene932/documentation.txt | 21 |
1 files changed, 6 insertions, 15 deletions
diff --git a/src/ec/compal/ene932/documentation.txt b/src/ec/compal/ene932/documentation.txt index eeb801a73f..a597e4eb7a 100644 --- a/src/ec/compal/ene932/documentation.txt +++ b/src/ec/compal/ene932/documentation.txt @@ -1,23 +1,14 @@ -Accessing the EC space -====================== +ASL interface +============= -The ACPI implementation uses the standard I/O ports 0x62 and 0x66 to access the -EC functionality. Accesses to these ports must be directed to the LPC bus to -which the EC is connected. +This EC implements the standard mainboard-EC coreboot interface. +Deviations from standard interface +================================== -Interfacing with the ASL files -============================== +The following method must be defined in the global namespace: -The mainboard code must define several variables for the ASL files. - -* EC_SCI - Defines the General Purpose Event (GPE) corresponding to the EC's SCI line. -* EC_ACPI_LID_SWITCH_OBJECT - Defines the APCI object which reads the state of the lid, with 0 = open, and - 1 = closed. This is usually the bit which reads the GPIO input corresponding - to the lid switch. * PNOT() The mainboard must define a PNOT method to handle power state notifications and Notify CPU device objects to re-evaluate their _PPC and _CST tables. |