diff --git a/src/ec/google/chromeec/Kconfig b/src/ec/google/chromeec/Kconfig
index f0418ff16e..eae1fc6aaa 100644
--- a/src/ec/google/chromeec/Kconfig
+++ b/src/ec/google/chromeec/Kconfig
@@ -167,6 +167,12 @@ config EC_GOOGLE_CHROMEEC_READ_BATTERY_LONG_STRING
 
 	  If unsure, say N.
 
+config EC_GOOGLE_CHROMEEC_LPC_GENERIC_MEMORY_RANGE
+	def_bool n
+	help
+	  Select this option to access LPC GMR (Generic Memory Range) Register to
+	  implement MMIO based communication between EC and AP firmware.
+
 endif # EC_GOOGLE_CHROMEEC
 
 source "src/ec/google/chromeec/*/Kconfig"
diff --git a/src/ec/google/chromeec/acpi/cros_ec.asl b/src/ec/google/chromeec/acpi/cros_ec.asl
index 5b5229b601..9cf1f66fb2 100644
--- a/src/ec/google/chromeec/acpi/cros_ec.asl
+++ b/src/ec/google/chromeec/acpi/cros_ec.asl
@@ -1,5 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#if CONFIG(EC_GOOGLE_CHROMEEC_LPC_GENERIC_MEMORY_RANGE)
+#define LPC_GMR_SIZE 0x10000
+#endif
+
 Device (CREC)
 {
 	Name (_HID, "GOOG0004")
@@ -19,26 +23,36 @@ Device (CREC)
 	#define EC_SYNC_SHARE_TYPE Exclusive
 #endif
 
-#ifdef EC_ENABLE_SYNC_IRQ
-	Name (_CRS, ResourceTemplate ()
+#if defined(EC_ENABLE_SYNC_IRQ) || defined(EC_ENABLE_SYNC_IRQ_GPIO)
+	Method (_CRS, 0x0, NotSerialized)
 	{
-		Interrupt (ResourceConsumer, Level, ActiveLow,
-			   EC_SYNC_SHARE_TYPE)
+		Name (RBUF, ResourceTemplate()
 		{
-			EC_SYNC_IRQ
-		}
-	})
+#ifdef EC_ENABLE_SYNC_IRQ
+			Interrupt (ResourceConsumer, Level, ActiveLow, EC_SYNC_SHARE_TYPE) { EC_SYNC_IRQ }
 #endif
 
 #ifdef EC_ENABLE_SYNC_IRQ_GPIO
-	Name (_CRS, ResourceTemplate ()
-	{
-		GpioInt (Level, ActiveLow, EC_SYNC_SHARE_TYPE, PullDefault,
-			 0x0000, "\\_SB.GPIO", 0x00, ResourceConsumer, ,)
-		{
-			EC_SYNC_IRQ
-		}
-	})
+			GpioInt (Level, ActiveLow, EC_SYNC_SHARE_TYPE, PullDefault,
+				 0x0000, "\\_SB.GPIO", 0x00, ResourceConsumer, ,)
+			{
+				EC_SYNC_IRQ
+			}
+#endif
+
+#if CONFIG(EC_GOOGLE_CHROMEEC_LPC_GENERIC_MEMORY_RANGE)
+		Memory32Fixed (ReadWrite, 0, 0, MADR)
+#endif
+		})
+
+#if CONFIG(EC_GOOGLE_CHROMEEC_LPC_GENERIC_MEMORY_RANGE)
+		CreateDWordField (RBUF, MADR._BAS, BAS0)
+		CreateDWordField (RBUF, MADR._LEN, LEN0)
+		BAS0 = \_SB.PCI0.LPCB.GLGM()
+		LEN0 = LPC_GMR_SIZE
+#endif
+		Return (RBUF)
+	}
 #endif
 
 #ifdef EC_ENABLE_MKBP_DEVICE