[ALL] add default carrier overlay configuration support

common/Kconfig.boot

@@ -958,4 +958,10 @@ config DEFAULT_FDT_FILE
 	help
 	  This option is used to set the default fdt file to boot OS.
 
+config DEFAULT_FDT_OVERLAY_CARRIER_FILE
+	string "Default fdt overlay carrier file"
+	help
+	  This option is used to set the default fdt overlay carrier file
+	  to boot OS.
+
 endmenu		# Booting

include/seco/seco_environment.h

@@ -92,6 +92,7 @@
 #ifdef CONFIG_OF_LIBFDT_OVERLAY
 #define MACRO_ENV_FDT_LOAD_OVERLAY_BASE \
 	fdt addr ${fdt_loadaddr}; fdt resize ${fdt_resize}; \
+	if test -n "${fdt_overlay_carrier_file}"; then run fdt_overlay_carrier_cmd; fi; \
 	seco_config fdtoverlay ; \
 	if test -n "${fdt_overlay_per_cmd}"; then run fdt_overlay_per_cmd; fi; \
 	if test -n "${fdt_overlay_video_cmd}"; then run fdt_overlay_video_cmd; fi;
@@ -281,6 +282,8 @@
 	"fdt_load_usb2ram="__stringify(MACRO_ENV_FDT_SRC_USB)"\0"                 \
 	"fdt_load_eth2ram="__stringify(MACRO_ENV_FDT_SRC_TFTP)"\0"                \
 	"fdt_load2ram="__stringify(MACRO_ENV_FDT_SRC_USDHCI)"\0"                  \
+	"fdt_overlay_carrier_file=" CONFIG_DEFAULT_FDT_OVERLAY_CARRIER_FILE "\0" \
+	"fdt_overlay_carrier_cmd= load mmc ${fdt_device_id}:${fdt_partition} ${fdt_overlay_base_addr} ${fdt_overlay_carrier_file}; fdt apply ${fdt_overlay_base_addr};\0" \
 	"fdt_overlay_base_addr="__stringify(ENV_FDT_OVERLAY_BASEADDR)"\0"       \
 	"fdt_overlay_load2ram="__stringify(MACRO_ENV_FDT_LOAD_OVERLAY_BASE)"\0"