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-rw-r--r--src/ec/compal/ene932/documentation.txt21
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.