On Fri, Feb 13, 2015 at 8:16 AM, Marco Cavallini <cavallini.k...@gmail.com> wrote:
> I have already studied this useful document > http://www.denx.de/wiki/pub/U-Boot/MiniSummitELCE2013/2013-u-boot-mxs-without-fsl-tools.pdf > > I do not need any encryption. > I did exactly the same as explained here > http://www.denx-cs.de/doku/?q=m28evkrunuboot > > make u-boot.sb > > Then I do not have SD nor other storage so I mus use USB firmware upload > http://www.denx-cs.de/doku/?q=m28evkusbdownloader > > Load u-boot.sb onto the device: > sudo ./mxsldr <path to u-boot.sb> > > This procedure works perfectly on the i.MX28evk, but doesn't on my > custom board so I supposed that u-boot-2015.01 STL works perfecly on > i.MX28 and MfgTools upload. > > Differences are: > - DUART on alternate pins > - DDR different > - eMMC instead of NAND > > I don't know how i.MX28 ROM boot works so my question are: > - should I see something on the serial port BEFORE the DDR settings are done? > - if I put some code in mxs_common_spl_init() is this executed > immediately BEFORE the DDR (and power) settings are done? You could try this patch to have debug output from SPL: http://git.denx.de/?p=u-boot.git;a=commitdiff;h=950eaf6230496585e72ebb965c458d35c6c7eac1;hp=e8cdeefc222ff32a80282dd571be0426156cd9d9 Make sure you have DEBUG and CONFIG_SPL_SERIAL_SUPPORT enabled. Also, double check the DDR initialization for your board. Regards, Fabio Estevam _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
