soc/intel/cannonlake: Set FSP-M UPD Heci1BarAddress
The patch sets FSP-M UPD Heci1BarAddress to avoid disconnect between
coreboot and FSP-M. Currently coreboot uses 0xfeda2000 as a PCI BAR address
for CSE device while FSP-M uses 0xfed1a000. So, after FSP-M call, CSE's BAR
address is overridden with 0xfed1a000. This causes HECI transactions to
fail between FSP-M call and postcar.
BRANCH=puff
TEST=Verified sending HECI commands before and after FSP-M call on hatch.
Signed-off-by: Sridhar Siricilla <sridhar.siricilla@intel.com>
Change-Id: I371cb658a96f5d580faff32ffab013cb6e6c492c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44211
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
diff --git a/src/soc/intel/cannonlake/romstage/fsp_params.c b/src/soc/intel/cannonlake/romstage/fsp_params.c
index 37f4d50..ac42e00 100644
--- a/src/soc/intel/cannonlake/romstage/fsp_params.c
+++ b/src/soc/intel/cannonlake/romstage/fsp_params.c
@@ -157,6 +157,9 @@
/* Configure VT-d */
tconfig->VtdDisable = 0;
+ /* Set HECI1 PCI BAR address */
+ m_cfg->Heci1BarAddress = HECI1_BASE_ADDRESS;
+
mainboard_memory_init_params(mupd);
}