This issue is related to
https://e2e.ti.com/support/arm/sitara_arm/f/791/p/555628/2311057#2311057
Did you solved this issue?We have the same issue with you.Our design has the same DDR UART MMC PMIC with GP EVM.But when we try the MLO and app in ti\processor_sdk_rtos_am57xx_4_00_00_04\prebuilt-sdcards\evmAM572x\sd_card_files ，there's nothing to output through serial port.
I have try to check status of board through emulator(without gel working).I found :
1.I can check the memory at 0x80000000 address.I think it means the DDR is work well
2.I can see the I2C waveform through oscilloscope .
3.I check the memory at 0x4a0037f8 and 0x4a0037fc which is the pinconfig of UART3 Tx\Rx
It is both 0x6000f in the register.
I think maybe the problem is in pinmux config .But I don't know how to fix that.
Ps:We have use the Processor SDK Linux 04.00.00.04 and work well.
Additionally I use : gmake board_lib LIMIT_BOARDS="evmAM572x" LIMIT_SOCS="am572x" LIMIT_CORES="a15_0" to update "ti.board.aa15fg" successful.
then I try " gmake -C ./ti/boot/sbl all BOARD=evmAM572x SOC=AM572x BOOTMODE=mmcsd " it print :
gmake[1]: Nothing to be done for `all'.
MLO is not updated.
