diff --git a/common/spl/Kconfig b/common/spl/Kconfig
index 620ea1e..af47f5c 100644
--- a/common/spl/Kconfig
+++ b/common/spl/Kconfig
@@ -37,9 +37,9 @@
 config SPL_SIZE_LIMIT
 	hex "Maximum size of SPL image"
 	depends on SPL
-	default 69632 if ARCH_MX6 && !MX6_OCRAM_256KB
-	default 200704 if ARCH_MX6 && MX6_OCRAM_256KB
-	default 0
+	default 0x11000 if ARCH_MX6 && !MX6_OCRAM_256KB
+	default 0x31000 if ARCH_MX6 && MX6_OCRAM_256KB
+	default 0x0
 	help
 	  Specifies the maximum length of the U-Boot SPL image.
 	  If this value is zero, it is ignored.
@@ -1335,7 +1335,7 @@
 config TPL_SIZE_LIMIT
 	hex "Maximum size of TPL image"
 	depends on TPL
-	default 0
+	default 0x0
 	help
 	  Specifies the maximum length of the U-Boot TPL image.
 	  If this value is zero, it is ignored.