Index: sys/dev/amdpm/amdpm.c
===================================================================
--- sys/dev/amdpm/amdpm.c
+++ sys/dev/amdpm/amdpm.c
@@ -62,6 +62,7 @@
 #endif
 
 #define AMDPM_VENDORID_AMD 0x1022
+#define AMDPM_VENDORID_HYGON 0x1d94
 #define AMDPM_DEVICEID_AMD756PM 0x740b
 #define AMDPM_DEVICEID_AMD766PM 0x7413
 #define AMDPM_DEVICEID_AMD768PM 0x7443
@@ -199,7 +200,8 @@
 	pci_write_config(dev, AMDPCI_GEN_CONFIG_PM, val_b | AMDPCI_PMIOEN, 1);
 
 	/* Allocate I/O space */
-	if (pci_get_vendor(dev) == AMDPM_VENDORID_AMD)
+	if (pci_get_vendor(dev) == AMDPM_VENDORID_AMD ||
+	    pci_get_vendor(dev) == AMDPM_VENDORID_HYGON)
 		amdpm_sc->rid = AMDPCI_PMBASE;
 	else
 		amdpm_sc->rid = NFPCI_PMBASE;