dts: Add support for adding DT overlays in u-boot.img
If u-boot.img is a FIT image, CONFIG_OF_OVERLAY_LIST can be used to add
DT overlays to u-boot.img.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/Makefile b/Makefile
index 1766f5a..6f62d76 100644
--- a/Makefile
+++ b/Makefile
@@ -1292,7 +1292,8 @@
-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
-p $(CONFIG_FIT_EXTERNAL_OFFSET) \
-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
- $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
+ $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \
+ $(patsubst %,-b arch/$(ARCH)/dts/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST)))
else
MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
diff --git a/dts/Kconfig b/dts/Kconfig
index 2bd959a..64c98dd 100644
--- a/dts/Kconfig
+++ b/dts/Kconfig
@@ -130,6 +130,14 @@
device tree files (without the directory or .dtb suffix)
separated by <space>.
+config OF_OVERLAY_LIST
+ string "List of device tree overlays to include for DT control"
+ depends on SPL_LOAD_FIT_APPLY_OVERLAY
+ help
+ This option specifies a list of device tree overlays to use for DT
+ control. This option can then be used by a FIT generator to include
+ the overlays in the FIT image.
+
choice
prompt "OF LIST compression"
depends on MULTI_DTB_FIT