boot/zephyr: Allow single image applications
The change enables usage of single image applications. This can be used
when user does not need multiple boot images and wants to use more flash
are for main application or other purposes.
Signed-off-by: Dominik Ermel <dominik.ermel@nordicsemi.no>
diff --git a/boot/zephyr/flash_map_extended.c b/boot/zephyr/flash_map_extended.c
index 4723af1..c77f96c 100644
--- a/boot/zephyr/flash_map_extended.c
+++ b/boot/zephyr/flash_map_extended.c
@@ -57,10 +57,12 @@
{
switch (slot) {
case 0: return FLASH_AREA_IMAGE_PRIMARY(image_index);
+#if !defined(CONFIG_SINGLE_IMAGE_DFU)
case 1: return FLASH_AREA_IMAGE_SECONDARY(image_index);
#if !defined(CONFIG_BOOT_SWAP_USING_MOVE)
case 2: return FLASH_AREA_IMAGE_SCRATCH;
#endif
+#endif
}
return -EINVAL; /* flash_area_open will fail on that */
@@ -76,9 +78,11 @@
if (area_id == FLASH_AREA_IMAGE_PRIMARY(image_index)) {
return 0;
}
+#if !defined(CONFIG_SINGLE_IMAGE_DFU)
if (area_id == FLASH_AREA_IMAGE_SECONDARY(image_index)) {
return 1;
}
+#endif
BOOT_LOG_ERR("invalid flash area ID");
return -1;