On Tue, Dec 30, 2014 at 9:45 PM, Robert Nelson <robertcnel...@gmail.com> wrote:
> 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/
>
> --
> For more options, visit http://beagleboard.org/discuss
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That is pretty cool.

Ouch on the transfer time:

> real    63m36.405s


Chris

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