Hi, On Thursday, July 26, 2012, Aneesh V wrote:
> Hi Tyler, > > On 07/26/2012 11:54 AM, Tyler Olmstead wrote: > >> Hi Christian, >> >> On Thu, Jul 26, 2012 at 10:03 AM, Christian Riesch >> <christian.rie...@omicron.at> wrote: >> >>> >>> [cc'd Prabhakar Lad, Tom Rini, and Scott Wood] >>> >>> Tyler, >>> >>> On Thu, Jul 26, 2012 at 5:37 PM, Tyler Olmstead >>> <tyler.j.olmst...@gmail.com> wrote: >>> >>>> Hi all, >>>> >>>> I have encountered some issues adding a board-specific command to the >>>> board file of a project I have been working on. Specifically, after >>>> adding a U-Boot shell command to my board file, I have been seeing >>>> link-stage failures when attempting to build SPL. >>>> >>> >>> It's hard to tell without having your code, but I think this problem >>> was already discussed in [1]. However I do not remember how Prabhakar >>> solved it in the end. >>> >> >> Yes, I ran into this thread while debugging the problem, which >> ultimately lead me to my solution. From that same thread [1], Wolfgang >> Denk writes: >> >> <quote> >> >>> >>> *I want to add a command using U_BOOT_CMD in uboot, where SPL_BUILD is >>> enabled for example for da850evm in spl frame work how can i do that * >>> >> >> This makes no sense. Commands can only be executed when we have full >> U-Boot running (actually even only after relocation). You cannot run >> commands in the SPL. >> </quote> >> >> I understand of course why it makes no sense to have command support >> in the SPL. However, the crux of this problem is that U-Boot and SPL >> both link in the same board object file, so in that sense compile-time >> switches wont work. From later in [1], Scott Wood writes: >> > > No that's not correct. For SPL we build the object files into a > different directory "spl/". Please see the below in spl/Makefile > > # We want the final binaries in this directory > obj := $(OBJTREE)/spl/ > > Object files used for U-Boot and SPL are not the same. You can use > compile-time switches and it should work just fine. Thanks for pointing that out, Aneesh. Therefore an #ifndef CONFIG_SPL_BUILD would work for Tyler's problem and I think that it's also easier to read than some build magic that removes u-boot commands. Christian > > -Aneesh > ______________________________**_________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/**listinfo/u-boot<http://lists.denx.de/mailman/listinfo/u-boot> >
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