On Mon, Jan 11, 2016 at 09:59:18AM -0700, Simon Glass wrote: > Hi Craig, > > On 20 December 2015 at 19:07, Craig McQueen > <craig.mcqu...@innerrange.com> wrote: > > This is to avoid the boot sequence halting due to initial "junk" > > received on serial input. > > > > Signed-off-by: Craig McQueen <craig.mcqu...@innerrange.com> > > --- > > I have found that on the BeagleBone Black, U-Boot occasionally halts at > > the U-Boot prompt at boot-up, whether power-up, warm external > > reset or software reset. I have seen other people report the same issue. > > > > This seems to be due to U-Boot receiving "junk" data on the serial > > console. The BeagleBone Black has a pull-down resistor which was > > apparently added to try to mitigate this issue, but it doesn't entirely > > fix it. > > I wonder if this can be fixed for that board only?
No, and it's not -exactly- a that board only problem. It's a HW design issue that can show up elsewhere too. I _think_ however in this case the answer would be to migrate to perhaps CONFIG_AUTOBOOT_KEYED_CTRLC as that's one of the reason various other boards use that set of options. I would suggest bringing this up on the beaglebone list to see what the various people that ship and support these boards think, thanks! -- Tom
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