Stuff

RedBoot> load -r -v -b 0x600000 /zImage-ep93xx
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Raw file loaded 0x00600000-0x0077915b, assumed entry at 0x00600000
RedBoot> exec -c "console=ttyAM0,115200,8n root=/dev/ram"
Using base address 0x00600000 and length 0x0017915c
Uncompressing Linux.............................................................................................

Error: unrecognized/unsupported machine ID (r1 = 0x000001cf).

Available machine support:

ID (hex)        NAME
000001c3        edb9312

Please check your kernel config and/or bootloader.