[U-Boot] Question AT91SAM9G20 boot from SD

Hi,

I have a AT91SAM9G20 and try to boot from SD-Card. I compiled u-boot, but the CONFIG_MMC is missing in the default mode. I found the default config for this board in /include/config/at91sam9260ek.h there I added the follofing lines:

#define CONFIG_CMD_MMC 1 #define CONFIG_MMC 1

now I get a compiler error with:

/common/cmd_mmc.c:53: undefined reference to `mmc_legacy_init',.....

Any ideas?

bye konne