Patch to make BBB properly boot from eMMC every time

[Winston Smith]

On Tue, May 13, 2014 at 10:33 AM, Ian Lepore <ian at freebsd.org> wrote:
> Does your emmc come up as 8-bit reliably every time?

I booted 4-5 times and it came up as 8-bit every time.

Interestingly, there is a 15 hang right before it prints the emmc msg:

uhub1: 1 port with 1 removable, self powered
uhub0: 1 port with 1 removable, self powered
####### HANGS FOR 15 SECONDS #######
mmcsd1: 2GB <MMC MMC02G 3.10 SN 2440244444 MFG 08/1997 by 254 0x004e>
at mmc1 48.0MHz/8bit/65535-block


This is an older 11-CURRENT build from a week ago (r265338M; the M is
from some i2c debugging I was doing).