The BCM2835 has a very bad USB controller which may cause a lot of problems!
CHOST=armv6j-hardfloat-linux-gnueabi CFLAGS=-O2 -pipe -march=armv6j -mtune=arm1176jzf-s -mfpu=vfp -mfloat-abi=hard
http://gentoo.ed-solutions.de/packages/raspberry_minimal_x/
USE=-ipv6 -gpm alsa X -doc -ruby -man sqlite sqlite3 nsplugin -introspection -gstreamer -gdm webgl opengl gtk3 gtk gallium drm dri xorg
# cd /usr/src # git clone git://github.com/hardkernel/linux # make uImage # make modules modules_install # mount /boot # cp arch/arm/boot/uImage /boot
# cd /root # git clone https://github.com/hardkernel/u-boot # cd uboot # make distclean # make smdk5410_config