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Linux/AM5728: Configuring earlyprintk calls in Linux

Part Number: AM5728


Tool/software: Linux

Hello, I'm working on the Linux bringup on our custom AM5728-based board, and I've been having some issues with bringing up boot-time debug statements.  So far for kernel porting, I have copied my changes from the U-Boot device tree to the Linux device tree (MMC and GPIO changes) and have enabled several lines in tisdk_am57xx-evm_defconfig:

CONFIG_EARLY_PRINTK=y
CONFIG_DEBUG_OMAP4UART3=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_LL=y
CONFIG_DEBUG_UART_8250=y

in accordance to these posts:

However, when I attempt to boot the board, the system hangs on Starting Kernel...  I have attached a bootlog as well:

0361.putty.log

Any help would be greatly appreciated!