When building a FIT, more than one device tree can be included. The board can select (at run-time) the one that it wants.
Add a Kconfig option to allow the list of devices trees (supported by the board) to be specified.
When using SPL_LOAD_FIT, build u-boot.img in FIT format instead of the legacy image format. Include all the listed device tree files in this FIT.
Signed-off-by: Simon Glass sjg@chromium.org ---
Makefile | 10 +++++++++- dts/Kconfig | 10 ++++++++++ 2 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/Makefile b/Makefile index 8b9f622..d01cd3e 100644 --- a/Makefile +++ b/Makefile @@ -903,9 +903,16 @@ quiet_cmd_cpp_cfg = CFG $@ cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
+ifdef CONFIG_SPL_LOAD_FIT +MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ + -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ + -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ + -b $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -i +else MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" +endif
MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
@@ -918,7 +925,8 @@ MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
-u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE +u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl: \ + $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE $(call if_changed,mkimage)
u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE diff --git a/dts/Kconfig b/dts/Kconfig index ba83d5f..9ef2660 100644 --- a/dts/Kconfig +++ b/dts/Kconfig @@ -59,6 +59,16 @@ config DEFAULT_DEVICE_TREE It can be overridden from the command line: $ make DEVICE_TREE=<device-tree-name>
+config OF_LIST + string "List of device tree files to include for DT control" + depends on SPL_LOAD_FIT + help + This option specifies a list of device tree files to use for DT + control. These will be packaged into a FIT. At run-time, SPL will + select the correct DT to use by examining the hardware (e.g. + reading a board ID value). This is a list of device tree files + (without the directory or .dtb suffix) separated by <space>. + config OF_SPL_REMOVE_PROPS string "List of device tree properties to drop for SPL" depends on SPL_OF_CONTROL