diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2013-02-11 21:15:12 -0600 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2013-03-21 22:49:49 +0100 |
| commit | c00457d065a0b57e8e2e8abc9318fc6e1198ee64 (patch) | |
| tree | d529351f300f0af21922c72a3c7bdf6abeea713a | |
| parent | f2b20d898a652889a819478174316cff235a501b (diff) | |
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>
Reviewed-on: http://review.coreboot.org/2796
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
| -rw-r--r-- | src/include/romstage_handoff.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/include/romstage_handoff.h b/src/include/romstage_handoff.h index 13dc9797bb..c20b2614bd 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__) |