On Wednesday 29 December 2010 05:56 AM, John Rigby wrote:
On Mon, Dec 27, 2010 at 11:50 PM, Aneesh Vaneesh@ti.com wrote:
Hello John,
On Tuesday 28 December 2010 06:17 AM, John Rigby wrote: < snip>
+LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds +LDFLAGS = -Bstatic -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_NAND_SPL_TEXT_BASE) $(PLATFORM_LDFLAGS) +AFLAGS += -DCONFIG_PRELOADER -DCONFIG_NAND_SPL +CFLAGS += -DCONFIG_PRELOADER -DCONFIG_NAND_SPL
How big is the spl now? For the OMAP4 spl, using '-ffunction-sections' and '--gc-sections' reduced the image size by 40% and helped it fit into the SRAM bugdet. I am sure your nand_spl is already fitting in the SRAM bugdet. But these flags may help reduce the size further. Do you want to try it?
It is about 12K. I will try the additional flags and see what
That's impressive. I think you won't need those flags then. the MMC spl for OMAP4 was much bigger(37 KB without --gc-sections and 22 KB with --gc-sections). I think the main difference is that for MMC spl I am using the u-boot MMC driver where as for nand spl you seem to be using a driver tailor made for the spl.
BTW, Is there a good way to know the contribution of each file/function to the final image size. I couldn't find any suitable option in 'ld'. With RVCT this was much easier.