On the advice of Tom Rini,
I'm making 'another' small change to the default u-boot.
For awhile now, in u-boot we defaulted to a usb-eth gadget on the slave port.
I'm switching that to the UMS or USB Mass Storage function..
What this means:
>From u-boot prompt:
Hit any key to stop autoboot: 0
U-Boot# ums 0 mmc 1
UMS: disk start sector: 0x0, count: 0x394000
a new flash drive will show up on your linux/win machine...
and you can flash the eMMC over the usb connection:
voodoo@zeus:/opt/images/bb.org$ time sudo dd
if=./bone-debian-7.7-console-armhf-2014-12-19-2gb.img of=/dev/sdc
[sudo] password for voodoo:
3481600+0 records in
3481600+0 records out
1782579200 bytes (1.8 GB) copied, 3814.3 s, 467 kB/s
real 63m36.405s
user 0m4.488s
sys 0m50.800s
It is 10x slow, but on reset:
**********************************************************************
U-Boot SPL 2015.01-rc3-00015-g84a5d7d (Dec 12 2014 - 16:04:56)
U-Boot 2015.01-rc3-00015-g84a5d7d (Dec 12 2014 - 16:04:56), Build:
jenkins-github_Bootloader-Builder-79
Watchdog enabled
I2C: ready
DRAM: 512 MiB
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
Using default environment
Net: <ethaddr> not set. Validating first E-fuse MAC
cpsw, usb_ether
**********************************************************************
That's pretty cool. ;) And should be useful for users with no
secondary microSD cards'...
Regards,
--
Robert Nelson
http://www.rcn-ee.com/
--
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