Stefan Reinauer (stefan.reinauer@coreboot.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/2796
-gerrit
commit f8935ebff61c943162eb296514dd150a6a0e6884 Author: Aaron Durbin adurbin@chromium.org Date: Mon Feb 11 21:15:12 2013 -0600
romstage_handoff: add s3_resume field
Provide a field in the romstage_handoff structure to indicate if the current boot is an ACPI S3 wake boot. There are currently quite a few non-standardized ways of passing this knowledge to ramstage from romstage. Many utilize stashing magic numbers in device-specific registers. The addition of this field adds a more formalized method passing along this information. However, it still requires the romstage chipset code to initialize this field. In short, this change does not make this a hard requirement for ramstage.
Change-Id: Ia819c0ceed89ed427ef576a036fa870eb7cf57bc Signed-off-by: Aaron Durbin adurbin@chromium.org --- src/include/romstage_handoff.h | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/src/include/romstage_handoff.h b/src/include/romstage_handoff.h index 13dc979..c20b261 100644 --- a/src/include/romstage_handoff.h +++ b/src/include/romstage_handoff.h @@ -31,6 +31,8 @@ struct romstage_handoff { /* This indicates to the ramstage to reserve a chunk of memory. */ uint32_t reserve_base; uint32_t reserve_size; + /* Inidicate if the current boot is an S3 resume. */ + uint32_t s3_resume; };
#if defined(__PRE_RAM__)