diff --git a/src/soc/amd/cezanne/acpi/mmio.asl b/src/soc/amd/cezanne/acpi/mmio.asl
index a109f53ff2..a8508f7df5 100644
--- a/src/soc/amd/cezanne/acpi/mmio.asl
+++ b/src/soc/amd/cezanne/acpi/mmio.asl
@@ -14,7 +14,10 @@ Device (AAHB)
 	{
 		Memory32Fixed (ReadWrite, ALINK_AHB_ADDRESS, 0x2000)
 	})
-	Name (_STA, 0xb)
+	Method (_STA, 0x0, NotSerialized)
+	{
+		Return (0x0b)
+	}
 }
 
 Device (GPIO)
diff --git a/src/soc/amd/glinda/acpi/mmio.asl b/src/soc/amd/glinda/acpi/mmio.asl
index 07ff7903d5..e3cb7a51ef 100644
--- a/src/soc/amd/glinda/acpi/mmio.asl
+++ b/src/soc/amd/glinda/acpi/mmio.asl
@@ -16,7 +16,10 @@ Device (AAHB)
 	{
 		Memory32Fixed (ReadWrite, ALINK_AHB_ADDRESS, 0x2000)
 	})
-	Name (_STA, 0xb)
+	Method (_STA, 0x0, NotSerialized)
+	{
+		Return (0x0b)
+	}
 }
 
 Device (GPIO)
diff --git a/src/soc/amd/mendocino/acpi/mmio.asl b/src/soc/amd/mendocino/acpi/mmio.asl
index c4acfb12db..cba3ec6599 100644
--- a/src/soc/amd/mendocino/acpi/mmio.asl
+++ b/src/soc/amd/mendocino/acpi/mmio.asl
@@ -16,7 +16,10 @@ Device (AAHB)
 	{
 		Memory32Fixed (ReadWrite, ALINK_AHB_ADDRESS, 0x2000)
 	})
-	Name (_STA, 0xb)
+	Method (_STA, 0x0, NotSerialized)
+	{
+		Return (0x0b)
+	}
 }
 
 Device (GPIO)
diff --git a/src/soc/amd/phoenix/acpi/mmio.asl b/src/soc/amd/phoenix/acpi/mmio.asl
index e8130b0037..9d70fd666e 100644
--- a/src/soc/amd/phoenix/acpi/mmio.asl
+++ b/src/soc/amd/phoenix/acpi/mmio.asl
@@ -16,7 +16,10 @@ Device (AAHB)
 	{
 		Memory32Fixed (ReadWrite, ALINK_AHB_ADDRESS, 0x2000)
 	})
-	Name (_STA, 0xb)
+	Method (_STA, 0x0, NotSerialized)
+	{
+		Return (0x0b)
+	}
 }
 
 Device (GPIO)
diff --git a/src/soc/amd/picasso/acpi/sb_fch.asl b/src/soc/amd/picasso/acpi/sb_fch.asl
index d58e044882..a0dfd46483 100644
--- a/src/soc/amd/picasso/acpi/sb_fch.asl
+++ b/src/soc/amd/picasso/acpi/sb_fch.asl
@@ -14,7 +14,10 @@ Device (AAHB)
 	{
 		Memory32Fixed (ReadWrite, ALINK_AHB_ADDRESS, 0x2000)
 	})
-	Name (_STA, 0xb)
+	Method (_STA, 0x0, NotSerialized)
+	{
+		Return (0x0b)
+	}
 }
 
 Device (GPIO)
diff --git a/src/soc/amd/stoneyridge/acpi/sb_fch.asl b/src/soc/amd/stoneyridge/acpi/sb_fch.asl
index d7490d719e..6876c2ae3d 100644
--- a/src/soc/amd/stoneyridge/acpi/sb_fch.asl
+++ b/src/soc/amd/stoneyridge/acpi/sb_fch.asl
@@ -12,7 +12,10 @@ Device (AAHB)
 	{
 		Memory32Fixed (ReadWrite, ALINK_AHB_ADDRESS, 0x2000)
 	})
-	Name (_STA, 0xb)
+	Method (_STA, 0x0, NotSerialized)
+	{
+		Return (0x0b)
+	}
 }
 
 Device (GPIO)