Cyclone V HPS UART, can't rx data

One more question.

I build preloader (SPL) from u-boot sources (https://github.com/altera-opensource/u-boot-socfpga, socfpga_v2013.01.01) with handsoff defaults from repository:

make mrproper

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- socfpga_cyclone5_config

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-

I get u-boot.img and u-boot-spl.bin. The last one I use to build preloader-mkpimage.bin:

mkpimage --header-version 0 -o preloader-mkpimage.bin u-boot-spl.bin u-boot-spl.bin u-boot-spl.bin u-boot-s pl.bin

But after updating SD card's partition 2 with this .bin (dd if=preloader-mkpimage.bin of=/dev/mmcblk0p3 bs=64k seek=0) - board doesn't boot at all.

And now I am wondering if there is anything which I should modify (at prloader/u-boot sources) before building u-boot-spl.bin.

u-boot build with the same way (u-boot.img) works fine.

I've tried to build preloader-mkpimage.bin according to the https://rocketboards.org/foswiki/view/documentation/avgsrdpreloader as well but results are the same - board doesn't boot at all - no single character on serial console.

Thanks