U-boot fails on AM3517 board but NOT on AM3517EVM

I have a custom AM3517 board and U-boot fails just prior to executing the defined CONFIG_BOOTCOMMAND.

Unfortunately the same MLO (X-loader) and U-boot images run fine on the AM3517EVM.

The “hit any key” countdown ( from 10 down to 0) is required for updating our software images.

Below is a copy of the console output.

Is there any obvious things to look for???

Thanks for the help!

Kerry

CONSOLE OUTPUT

U-Boot SPL 2013.01.01-g43a81af-dirty (Jan 13 2016 - 10:29:17)

U-Boot 2013.01.01-g43a81af-dirty (Jan 13 2016 - 13:13:41)

[1^st PASS]

AM35XX-GP ES2.0, CPU-OPP2, L3-165MHz, Max CPU Clock 600 Mhz

AM3517EVM Board + LPDDR/NAND

I2C:   ready

DRAM:  256 MiB

NAND:  512 MiB

MMC:   OMAP SD/MMC: 0

*** Warning - bad CRC, using default environment

In:    serial

Out:   serial

Err:   serial

Die ID #7e42000100000000014996851400a011

Hit any key to stop autoboot: 10                                            <------ PROCESSOR AUTO-RESTARTS HERE (Note: countdown never occurs)

[2^nd PASS]

U-Boot SPL 2013.01.01-g43a81af-dirty (Jan 13 2016 - 10:29:17)

 U-Boot 2013.01.01-g43a81af-dirty (Jan 13 2016 - 13:13:41)

AM35XX-GP ES2.0, CPU-OPP2, L3-165MHz, Max CPU Clock 600 Mhz

AM3517EVM Board + LPDDR/NAND

I2C:   ready

DRAM:  256 MiB

NAND:  512 MiB

MMC:   OMAP SD/MMC: 0

*** Warning - bad CRC, using default environment

In:    serial

Out:   serial

Err:   serial

Die ID #7e42000100000000014996851400a011

Hit any key to stop autoboot: 10                                            <------  PROCESSOR AUTO-RESTARTS HERE (Note: countdown never occurs)

[3^rd PASS]

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Repeats forever...