imx: mkimage: add size check to the u-boot.imx make target

The make macro to check if the binary exceeds the board size limit is
taken straight from the root Makefile.

Without this and e.g. enabled EFI Vybrid fails booting as the regular
size limit check does not take the final u-boot.imx binary size into
account which is bigger due to alignment as well as IMX header stuff.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>

diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 72fe23a2b95962117f737dc27f3870083b201502..53d9e5f42bc1953fa476c2b79e24cf4cdf4716cb 100644 (file)
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -58,6 +58,21 @@ obj-$(CONFIG_CMD_HDMIDETECT) += cmd_hdmidet.o
 obj-$(CONFIG_CMD_DEKBLOB) += cmd_dek.o
 endif
 
+ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
+BOARD_SIZE_CHECK = \
+        @actual=`wc -c $@ | awk '{print $$1}'`; \
+        limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
+        if test $$actual -gt $$limit; then \
+                echo "$@ exceeds file size limit:" >&2 ; \
+                echo "  limit:  $$limit bytes" >&2 ; \
+                echo "  actual: $$actual bytes" >&2 ; \
+                echo "  excess: $$((actual - limit)) bytes" >&2; \
+                exit 1; \
+        fi
+else
+BOARD_SIZE_CHECK =
+endif
+
 PLUGIN = board/$(BOARDDIR)/plugin
 
 ifeq ($(CONFIG_USE_IMXIMG_PLUGIN),y)
@@ -101,6 +116,7 @@ u-boot.imx: MKIMAGEOUTPUT = u-boot.imx.log
 
 u-boot.imx: u-boot.bin u-boot.cfgout $(PLUGIN).bin FORCE
        $(call if_changed,mkimage)
+       $(BOARD_SIZE_CHECK)
 
 ifeq ($(CONFIG_OF_SEPARATE),y)
 MKIMAGEFLAGS_u-boot-dtb.imx = -n $(filter-out $(PLUGIN).bin $< $(PHONY),$^) \