olimex-lpc2478 SD/MMC card not boot

board : olimex-lpc2478

Hello,

Why can the mmc card not load linux and romfs ?

The u-boot show the message :

============================================

mci-cid (SD memory card):

Manufacturer ID: 0x1b

OEM/Application ID: SM

Product Name: SMI

Product Revision: 1.0

Serial Number: 0x000c27ae

Date Code: 2007.11

sector size = 512 (Bytes), card size = 510 (MBytes)

dump csd data: 005e00325f5983cc

edb77f8f9640007c

mmc_block_read: start=0, blkcnt=1

============================================

The u-boot does not work after showing the message.

Could you please tell me the reason ?

Thank you for grateful.

Can anyone give me any suggestions ?

Please help me .

Thanks.