diff --git a/src/soc/intel/braswell/lpe.c b/src/soc/intel/braswell/lpe.c
index 58b5a8d7..8ec944b 100644
--- a/src/soc/intel/braswell/lpe.c
+++ b/src/soc/intel/braswell/lpe.c
@@ -38,7 +38,7 @@
  * address. Just take 1MiB @ 512MiB.
  */
 #define FIRMWARE_PHYS_BASE (512 << 20)
-#define FIRMWARE_PHYS_LENGTH (1 << 20)
+#define FIRMWARE_PHYS_LENGTH (2 << 20)
 #define FIRMWARE_PCI_REG_BASE 0xa8
 #define FIRMWARE_PCI_REG_LENGTH 0xac
 #define FIRMWARE_REG_BASE_C0 0x144000