mb/asus/kgpe-d16|kcma-d8: Add ehci_async_data_cache CMOS option

Change-Id: I76a1047742369416b90e5c8bf307f85c02ae9bbb
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: https://review.coreboot.org/14242
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
diff --git a/src/mainboard/asus/kcma-d8/cmos.default b/src/mainboard/asus/kcma-d8/cmos.default
index c8edd97..ba9ba3b 100644
--- a/src/mainboard/asus/kcma-d8/cmos.default
+++ b/src/mainboard/asus/kcma-d8/cmos.default
@@ -24,6 +24,7 @@
 probe_filter = Auto
 l3_cache_partitioning = Disable
 gart = Enable
+ehci_async_data_cache = Enable
 experimental_memory_speed_boost = Disable
 power_on_after_fail = On
 boot_option = Fallback
diff --git a/src/mainboard/asus/kcma-d8/cmos.layout b/src/mainboard/asus/kcma-d8/cmos.layout
index 9bda1f6..14e3c9b 100644
--- a/src/mainboard/asus/kcma-d8/cmos.layout
+++ b/src/mainboard/asus/kcma-d8/cmos.layout
@@ -48,8 +48,9 @@
 476          1       e       1        l3_cache_partitioning
 478          1       e       1        iommu
 479          1       e       1        cpu_core_boost
-480          1       e       1        experimental_memory_speed_boost
-481          1       r       0        allow_spd_nvram_cache_restore
+480          1       e       2        ehci_async_data_cache
+481          1       e       1        experimental_memory_speed_boost
+482          1       r       0        allow_spd_nvram_cache_restore
 728        256       h       0        user_data
 984         16       h       0        check_sum
 # Reserve the extended AMD configuration registers
diff --git a/src/mainboard/asus/kgpe-d16/cmos.default b/src/mainboard/asus/kgpe-d16/cmos.default
index 0e7afb3..481022c 100644
--- a/src/mainboard/asus/kgpe-d16/cmos.default
+++ b/src/mainboard/asus/kgpe-d16/cmos.default
@@ -25,6 +25,7 @@
 l3_cache_partitioning = Disable
 ieee1394_controller = Enable
 gart = Enable
+ehci_async_data_cache = Enable
 experimental_memory_speed_boost = Disable
 power_on_after_fail = On
 boot_option = Fallback
diff --git a/src/mainboard/asus/kgpe-d16/cmos.layout b/src/mainboard/asus/kgpe-d16/cmos.layout
index 075388e..9e48910 100644
--- a/src/mainboard/asus/kgpe-d16/cmos.layout
+++ b/src/mainboard/asus/kgpe-d16/cmos.layout
@@ -49,8 +49,9 @@
 477          1       e       1        ieee1394_controller
 478          1       e       1        iommu
 479          1       e       1        cpu_core_boost
-480          1       e       1        experimental_memory_speed_boost
-481          1       r       0        allow_spd_nvram_cache_restore
+480          1       e       2        ehci_async_data_cache
+481          1       e       1        experimental_memory_speed_boost
+482          1       r       0        allow_spd_nvram_cache_restore
 728        256       h       0        user_data
 984         16       h       0        check_sum
 # Reserve the extended AMD configuration registers