soc/amd/common/data_fabric/domain: write _BBN method in SSDT
Instead of having PCI0's _BBN method in the DSDT that always returns 0,
use acpigen_write_BBN to generate the _BBN method that returns the first
PCI bus number in the PCI domain/host bridge.
TEST=On mandolin the _BBN method in the _SB/PCI0 scope is now in the
SSDT instead of the DSDT, but still returns 0.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I8badeb0064b498d3f18217ea24bff73676913b02
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74992
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/amd/common/block/data_fabric/domain.c b/src/soc/amd/common/block/data_fabric/domain.c
index aec1596..c032fdb 100644
--- a/src/soc/amd/common/block/data_fabric/domain.c
+++ b/src/soc/amd/common/block/data_fabric/domain.c
@@ -243,6 +243,9 @@
}
acpigen_write_resourcetemplate_footer();
+
+ acpigen_write_BBN(domain->link_list->secondary);
+
/* Scope */
acpigen_pop_len();
}