Hello!
I'm trying to upload u-boot-spl.bin using this instructions: http://processors.wiki.ti.com/index.php/AM335x_U-Boot_User's_Guide#Boot_Over_UART on am335x-evmsk. With SDK 7 it works fine.
But pre-built image of u-boot-spl.bin from SDK8 doesn't work: after it has been uploaded (step 3 from the above instruction) the board is freezed (even reset button doesn't work) and uploading of u-boot.img do not proceed.
How to fix it?