If the DEBUG serial port is UART2 according to your own platform, SPL cannot load ATF and stops at the following log。the same problem occurs with EVK development boards.Attached is the modified patch。
Help to analyze what is the problem。Tks!
U-Boot SPL 2019.04-dirty (Jul 01 2020 - 16:42:26 +0800)
PMIC: PFUZE100 ID=0x10
DDRINFO: start DRAM init
DDRINFO:ddrphy calibration done
DDRINFO: ddrmix config done
Trying to boot from MMC1
Authentication key not yet programmed
keyslot package magic error, do nothing here!