diff --git a/src/mainboard/amd/birman/Kconfig b/src/mainboard/amd/birman/Kconfig
index 9fafae15e3..3a9ffc77f1 100644
--- a/src/mainboard/amd/birman/Kconfig
+++ b/src/mainboard/amd/birman/Kconfig
@@ -2,7 +2,7 @@
 
 config BOARD_AMD_BIRMAN_COMMON
 	def_bool n
-	select BOARD_ROMSIZE_KB_16384	# Birman actually has a 32MiB ROM
+	select BOARD_ROMSIZE_KB_32768
 	select EC_ACPI
 	select SOC_AMD_COMMON_BLOCK_USE_ESPI if !SOC_AMD_COMMON_BLOCK_SIMNOW_BUILD
 	select DRIVERS_PCIE_RTD3_DEVICE
diff --git a/src/mainboard/amd/birman_plus/Kconfig b/src/mainboard/amd/birman_plus/Kconfig
index 91e39bf260..62d5c29141 100644
--- a/src/mainboard/amd/birman_plus/Kconfig
+++ b/src/mainboard/amd/birman_plus/Kconfig
@@ -2,7 +2,7 @@
 
 config BOARD_AMD_BIRMANPLUS_COMMON
 	def_bool n
-	select BOARD_ROMSIZE_KB_16384   # Birman+ actually has a 64MiB ROM
+	select BOARD_ROMSIZE_KB_65536
 	select EC_ACPI
 	select SOC_AMD_COMMON_BLOCK_USE_ESPI if !SOC_AMD_COMMON_BLOCK_SIMNOW_BUILD
 	select DRIVERS_PCIE_RTD3_DEVICE
diff --git a/src/mainboard/amd/crater/Kconfig b/src/mainboard/amd/crater/Kconfig
index 620bc3d084..11bd6b9cf7 100644
--- a/src/mainboard/amd/crater/Kconfig
+++ b/src/mainboard/amd/crater/Kconfig
@@ -2,7 +2,7 @@
 
 config BOARD_AMD_CRATER_COMMON
 	def_bool n
-	select BOARD_ROMSIZE_KB_16384	# Birman actually has a 32MiB ROM
+	select BOARD_ROMSIZE_KB_32768
 	select EC_ACPI
 	select SOC_AMD_COMMON_BLOCK_USE_ESPI if !SOC_AMD_COMMON_BLOCK_SIMNOW_BUILD
 	select DRIVERS_PCIE_RTD3_DEVICE
diff --git a/src/mainboard/amd/mayan/Kconfig b/src/mainboard/amd/mayan/Kconfig
index 327599d78c..1af2d1838b 100644
--- a/src/mainboard/amd/mayan/Kconfig
+++ b/src/mainboard/amd/mayan/Kconfig
@@ -4,7 +4,7 @@ if BOARD_AMD_MAYAN_PHOENIX
 
 config BOARD_SPECIFIC_OPTIONS
 	def_bool y
-	select BOARD_ROMSIZE_KB_16384	# Mayan actually has a 32MiB ROM
+	select BOARD_ROMSIZE_KB_32768
 	select EC_ACPI
 	select SOC_AMD_COMMON_BLOCK_USE_ESPI
 	select AMD_SOC_CONSOLE_UART