am387x u-boot spl + u-boot

U-Boot SPL 2011.09-00000-gdcd40c9-dirty (Oct 07 2011 - 10:41:28)
Texas Instruments Revision detection unimplemented
OMAP SD/MMC: 0
reading u-boot.bin
mkimage signature not found - ih_magic = ea000014
Assuming u-boot.bin ..
reading u-boot.bin


U-Boot 2011.09-00000-gdcd40c9-dirty (Oct 07 2011 - 10:41:28)

I2C:   ready
DRAM:  1 GiB
WARNING: Caches not enabled
NAND:  >>nand_command: page_addr: 0xffffffff
>>nand_command: page_addr: 0xffffffff
>>nand_command: page_addr: 0xffffffff
256 MiB
MMC:   OMAP SD/MMC: 0
*** Warning - bad CRC, using default environment

Hit any key to stop autoboot:  0
reading boot.scr

** Unable to read "boot.scr" from mmc 0:1 **
In case ENV on MMC/SD is required
Please put a valid script named boot.scr on the card
Refer to the User Guide on how to generate the image
TI8148_EVM#