Hello, I'm a newbie using U-boot and met several problems with a customized board based on MPC8315E-RDB board. On the new board, I have changed the Ethernet PHY to TI's DP83848 and NAND FLASH to 64Mbit (from old 32Mbit).
During U-boot form NOR FLASH , I met two problems :
1, if NAND flash support is enabled, U-boot just print out "NAND : " without size info and then print out text like "machine check ...,", then print out "resetting board ..." So the board keep resetting again and again. Does this have anything to do with NAND FLASH size change or NAND PART types?
2.if NAND flash support is disabled, U-boot just go to Ethernet PHY initialization part and print out that DP83848 is not supported , Where can I put new driver to support it?
3.How can I watch more ouput infomation during U-boot boot process to debug these problems ?
Thanks.