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-rw-r--r--src/soc/amd/common/block/smbus/sm.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/src/soc/amd/common/block/smbus/sm.c b/src/soc/amd/common/block/smbus/sm.c
index 28e662c650..80a11848f5 100644
--- a/src/soc/amd/common/block/smbus/sm.c
+++ b/src/soc/amd/common/block/smbus/sm.c
@@ -21,15 +21,13 @@ static void sm_init(struct device *dev)
static u32 get_sm_mmio(struct device *dev)
{
- struct resource *res;
- struct bus *pbus;
-
- pbus = get_pbus_smbus(dev);
- res = find_resource(pbus->dev, 0x90);
- if (res->base == SMB_BASE_ADDR)
- return (uintptr_t)acpimmio_smbus;
-
- return (uintptr_t)acpimmio_asf;
+ /*
+ * Since SMBus and ASF controller are behind the same PCIe device, we don't know behind
+ * which controller a device is. We assume here that the devices are behind the SMBus
+ * controller. The proper solution would be to handle those as MMIO devices instead of
+ * PCI ones.
+ */
+ return (uintptr_t)acpimmio_smbus;
}
static int lsmbus_recv_byte(struct device *dev)