Module Name: src
Committed By: bouyer
Date: Wed Mar 10 19:23:57 UTC 2010
Modified Files:
src/sys/dev/ic: ahcisata_core.c
Log Message:
ahcisata_core.c 1.23 cause long drive probe (31s, reported by
Roy Marples), or other devices misbehavior probably due to interrupts issues
(reported by Jukka Ruohonen). Back it out and do the following changes:
- clear port interrupt register before ahci_channel_start() which enables
interrupts
- wait 500ms after sata_reset_interface() before touching SERROR register.
This is what seems to fix the issue I'm seeming on ESB2 controller.
- The 31s delay didn't cause the probe to fail because of a mismatch
in loop index comparison; use a #define for delay after reset
instead of numeric values, to avoid this kind of bugs in the
future.
To generate a diff of this commit:
cvs rdiff -u -r1.23 -r1.24 src/sys/dev/ic/ahcisata_core.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
