[U-Boot] [RFC] Makefile: Add a message warning size change for mpc85xx boards
Some mpc85xx boards are using 768KB size u-boot image while some legacy boards still use 512KB. To bring attention to users about the size change, a message is printed when compiling. SPL/PBL is not covered by this change.
Signed-off-by: York Sun yorksun@freescale.com CC: Kim Phillips kim.phillips@freescale.com --- Makefile | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/Makefile b/Makefile index ca212b5..5c823dc 100644 --- a/Makefile +++ b/Makefile @@ -691,8 +691,20 @@ BOARD_SIZE_CHECK = \ exit 1; \ fi else +ifdef CONFIG_MPC85xx +BOARD_SIZE_CHECK = \ + @actual=`wc -c $@ | awk '{print $$1}'`; \ + limit=524288; \ + if test $$actual -gt $$limit; then \ + echo "Attention: File size $$actual bytes, may be different from legacy images" >&2; \ + offset=`printf "%x" $$actual`; \ + echo " NOR flash address for u-boot.bin: 0x$$offset from end of boot bank" >&2; \ + echo " See board README"; \ + fi +else BOARD_SIZE_CHECK = endif +endif
# Statically apply RELA-style relocations (currently arm64 only) ifneq ($(CONFIG_STATIC_RELA),)
This is an RFC. Do NOT apply. It outputs the message, tricks MAKEALL to count it as warning.
York
On 07/29/2014 02:23 PM, York Sun wrote:
Some mpc85xx boards are using 768KB size u-boot image while some legacy boards still use 512KB. To bring attention to users about the size change, a message is printed when compiling. SPL/PBL is not covered by this change.
Signed-off-by: York Sun yorksun@freescale.com CC: Kim Phillips kim.phillips@freescale.com
Makefile | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/Makefile b/Makefile index ca212b5..5c823dc 100644 --- a/Makefile +++ b/Makefile @@ -691,8 +691,20 @@ BOARD_SIZE_CHECK = \ exit 1; \ fi else +ifdef CONFIG_MPC85xx +BOARD_SIZE_CHECK = \
- @actual=`wc -c $@ | awk '{print $$1}'`; \
- limit=524288; \
- if test $$actual -gt $$limit; then \
echo "Attention: File size $$actual bytes, may be different from legacy images" >&2; \offset=`printf "%x" $$actual`; \echo " NOR flash address for u-boot.bin: 0x$$offset from end of boot bank" >&2; \echo " See board README"; \- fi
+else BOARD_SIZE_CHECK = endif +endif
# Statically apply RELA-style relocations (currently arm64 only) ifneq ($(CONFIG_STATIC_RELA),)
Dear York Sun,
In message 1406669019-31651-1-git-send-email-yorksun@freescale.com you wrote:
Some mpc85xx boards are using 768KB size u-boot image while some legacy boards still use 512KB. To bring attention to users about the size change, a message is printed when compiling. SPL/PBL is not covered by this change.
This makes no sense to me. Where are these magic image sizes coming from? This is highly board specific stuff at best, probably valid for some Freescale boards only.
I think if this is useful at all (which I actually doubt) this should be moved to board specific code, or if you really think it fits, then maybe made Freescale vendor specific.
But please keep such stuff out of the global Makefile.
Thanks.
Wolfgang Denk
On 07/29/2014 10:02 PM, Wolfgang Denk wrote:
Dear York Sun,
In message 1406669019-31651-1-git-send-email-yorksun@freescale.com you wrote:
Some mpc85xx boards are using 768KB size u-boot image while some legacy boards still use 512KB. To bring attention to users about the size change, a message is printed when compiling. SPL/PBL is not covered by this change.
This makes no sense to me. Where are these magic image sizes coming from? This is highly board specific stuff at best, probably valid for some Freescale boards only.
This was raised by an end user who got confused by upgrading from the older image which was 512KB to the new image 768KB. The README file described the change, but it may be not obvious enough to a user to notice.
Kim proposed the idea to add a compiling warning (not really a warning though) about the size change to raise attention.
I think if this is useful at all (which I actually doubt) this should be moved to board specific code, or if you really think it fits, then maybe made Freescale vendor specific.
But please keep such stuff out of the global Makefile.
I agree it should not be put into global Makefile. I am struggling to understand the right way to move such check to arch/powerpc/cpu/mpc85xx/Makefile. Do I need to add a new target in arch/powerpc/cpu/mpc85xx/Makefile, like
+NEW_TARGET: + Do something special here
and add an entry in global Makefile, like
u-boot.bin: u-boot FORCE $(call if_changed,objcopy) $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) $(BOARD_SIZE_CHECK) + $(Q)$(MAKE) $(build)=arch/powerpc/cpu/mpc85xx NEW_TARGET
Some guidance (or examples) will be appreciated.
York
participants (2)
-
Wolfgang Denk -
York Sun