[U-Boot] am3517: segmentation fault in Linux after upgrading from arago src to mainline u-boot

I'm having problems with the new u-boot (November 2013) and am3517 SoC. When I start Debian 7.0 armhf I get lots of Segmentation faults, I can't even perform apt-get udpate. With the older u-boot (arago sources from 2010) everything seems to work properly.

I've checked ATAG_MEM and both u-boot versions deliver same RAM start address and size. I've compared EMIF4 settings (arch/arm/cpu/armv7/omap3/emif4.c) and PINMUX and everything is the same.

Where else can I look for differences?

Yegor