2012/8/24 Stefan Roese <stefan.ro...@gmail.com>: > On 08/24/2012 06:42 PM, Daniel Schwierzeck wrote: >>>>> The u-boot image is merged with SPL >>>>> image without any padding or >>>>> fixed flash offsets to achieve a maximum reduction of flash footprint. >>>> >>>> Interesting. I'm still padding to the fixed offset. Let me look into >>>> squeezing those two images together as well... >>> >>> Looks good. One question though: How do you make sure, that your SPL >>> image length is 4-byte aligned? >> >> I have 4-byte alignments for each section and for each address symbol >> in my linker script. >> Actually all MIPS linker scripts do this. > > Yes. I have those section alignments in the linker script as well. The > problem is the end of the last (physical end in flash) section. If I > have here a string with length 7 for example, the SPL binary has a > non-4-byte aligned length. > > Any ideas on this?
MIPS linker scripts have a symbol in front of the BSS section that is named uboot_end_data. I think most ARM linker scripts have it too but it is named __image_copy_end. This symbol is 4-byte-aligned. If I want to know the length of SPL image i can simply do ulong len = (ulong) &__image_copy_end - CONFIG_SPL_TEXT_BASE and len is 4-byte-aligned -- Best regards, Daniel _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
