[U-Boot] qemu-x86 issues

Hey guys,

After making Stephen's scripts work with qemu today, I've started testing out what platforms I can test out via qemu. I've found two problems with qemu-x86. First, there's a real problem with the network. I run qemu with "-nographic -cpu qemu32 -netdev user,id=net0,tftp=/tftpboot -device e1000,netdev=net0" so that I can tftpboot things in and I'm getting crc32 mismatches.

Second, the sleep command is not at all accurate. It's returning the 3 second test in less than 1 second.

Any ideas, or places I should try poking to solve these issues? I'm going to kludge around this for now by disabling these tests locally. Thanks!