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-rw-r--r--src/soc/amd/picasso/acpi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/soc/amd/picasso/acpi.c b/src/soc/amd/picasso/acpi.c
index fe5879c69a..7704c30a27 100644
--- a/src/soc/amd/picasso/acpi.c
+++ b/src/soc/amd/picasso/acpi.c
@@ -33,7 +33,7 @@ unsigned long acpi_fill_mcfg(unsigned long current)
CONFIG_MMCONF_BASE_ADDRESS,
0,
0,
- CONFIG_MMCONF_BUS_NUMBER);
+ CONFIG_MMCONF_BUS_NUMBER - 1);
return current;
}