diff --git a/boot/zephyr/boards/mimxrt1020_evk.conf b/boot/zephyr/boards/mimxrt1020_evk.conf
new file mode 100644
index 00000000..37ed5f87
--- /dev/null
+++ b/boot/zephyr/boards/mimxrt1020_evk.conf
@@ -0,0 +1,4 @@
+# Copyright 2021 NXP
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_BOOT_MAX_IMG_SECTORS=1024
diff --git a/boot/zephyr/boards/mimxrt1050_evk_qspi.conf b/boot/zephyr/boards/mimxrt1050_evk_qspi.conf
new file mode 100644
index 00000000..37ed5f87
--- /dev/null
+++ b/boot/zephyr/boards/mimxrt1050_evk_qspi.conf
@@ -0,0 +1,4 @@
+# Copyright 2021 NXP
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_BOOT_MAX_IMG_SECTORS=1024