On Wed, May 15, 2019 at 1:25 PM Simon Goldschmidt <simon.k.r.goldschm...@gmail.com> wrote: > > Am 15.05.2019 um 20:12 schrieb Adam Ford: > > I am trying to add DM support in SPL along with device tree support > > similar to how it's being done for the omap3_logic boards. > > Unfortunately, I think something is going wrong in the initialization > > with CONFIG_DM enabled for SPL because I get no text data, and it > > doesn't appear to boot. > > > > I tried enabling DM in SPL and using the older platdata method without > > success. I have disabled DM_SERIAL in SPL and tried enabling the > > serial debug stuff, and I get nothing. I don't have a debugger, so > > it's a bit more difficult to troubleshoot. > > > > The main difference between the am35 and omap3 is the memory > > controller, and I've tried to model the am35 after the omap3 boards I > > also maintain. I was hoping someone might have any suggestions on how > > to track down the issue. As of right now, I have OF_CONTROL working > > in U-Boot and with DM disabled in SPL, everything is good. > > I don't know that mach, but reading the files, you're calling > 'spl_early_init()' from your 'board_init_f()'. The problem I had there > was that I did not have enough heap - and notice you need pre-reloc heap > enabled.
I have a device tree setup with a variety of pre-reloc entries. There is an omap3-u-boot.dtsi file which sets this up. dtc -I dtb -O dts spl/u-boot-spl.dtb lists a bunch of nodes for gpio, mmc, serial, and some misc dependencies. Is there somewhere else I need to enable the pre-reloc stuff? > > spl_early_init() parses the dts and binds the drivers, and even the > default CONFIG_SPL_SYS_MALLOC_F_LEN of 1 KiB wasn't enough for me. Oh, > and of course you need CONFIG_SYS_MALLOC_F enabled when calling > spl_early_ini() from board_init_f in SPL. My updated defconfig file has: CONFIG_SYS_MALLOC_F_LEN=0x4000 CONFIG_SYS_MALLOC_F=y > > Regards, > Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
