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authorMichal Simek <michal.simek@xilinx.com>2019-10-22 16:39:11 +0200
committerTom Rini <trini@konsulko.com>2020-01-07 11:12:47 -0500
commit9d13b8725481ee5651c6e881e5d336142b813b14 (patch)
tree4def4236ff4b9feff5f069b2f06aba616b64897c /Kconfig
parent6b8b98d54d8e74c8b4c6cfe431e88c90efcea72d (diff)
spl: fit: Add support for applying DT overlay
doc/uImage.FIT/overlay-fdt-boot.txt is describing how to create FIT image with DT overlays in it. Add support for this feature to SPL. Here is the ZynqMP fragment where dtb points to full DT and dtbo is overlay which should be applied on the top of dtb. config { description = "ATF with full u-boot overlay"; firmware = "atf"; loadables = "uboot"; fdt = "dtb", "dtbo"; }; The whole feature depends on OF_LIBFDT_OVERLAY which is adding +4kB code and 0 for platforms which are not enabling this feature. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'Kconfig')
-rw-r--r--Kconfig9
1 files changed, 9 insertions, 0 deletions
diff --git a/Kconfig b/Kconfig
index 46a31f45b9..0edd4ec2b0 100644
--- a/Kconfig
+++ b/Kconfig
@@ -444,6 +444,15 @@ config SPL_LOAD_FIT
particular it can handle selecting from multiple device tree
and passing the correct one to U-Boot.
+config SPL_LOAD_FIT_APPLY_OVERLAY
+ bool "Enable SPL applying DT overlays from FIT"
+ depends on SPL_LOAD_FIT
+ select OF_LIBFDT_OVERLAY
+ help
+ The device tree is loaded from the FIT image. Allow the SPL is to
+ also load device-tree overlays from the FIT image an apply them
+ over the device tree.
+
config SPL_LOAD_FIT_FULL
bool "Enable SPL loading U-Boot as a FIT (full fitImage features)"
select SPL_FIT