Actually , boot from USB ,as slave mode , as I know , iMX5/6 omap3/4/5 all support boot from usb otg (as slave mode )
2014/1/8 William Hermans <[email protected]> > "So, what is the SD card? It can't just boot off the USB? I believe in > this case, I am still correct. " > > So, what is a BIOS ? If in this case you are correct, then no computer > system out there can boot off of USB. As all computer devices need to know > how to bring up the hardware, DDR memory( > now days ) , and from where to boot. > > Ok, so I was wrong, guess you do not care if someone can boot their BBB's > off of a USB drive. > > > On Tue, Jan 7, 2014 at 7:56 PM, William Hermans <[email protected]> wrote: > >> If you actually read the article, you would realize there is no need to >> modify anything rh_ . . . >> >> >> On Tue, Jan 7, 2014 at 7:56 PM, William Hermans <[email protected]>wrote: >> >>> >>> >>> On Tue, Jan 7, 2014 at 7:55 PM, William Hermans <[email protected]>wrote: >>> >>>> Actually, its loading the kernel from the HDD. Only the uboot files >>>> need be read, so as the device knows where to boot *from*. >>>> >>>> If you want to be a 100% nitpicking techno-junkie, then a purely 100% >>>> SD/eMMC-less boot can be had by using eprom . . . as it stands, this form >>>> of USB boot satisfies me, and 99% of the other people out there :) >>>> >>>> >>>> On Tue, Jan 7, 2014 at 7:13 PM, rh_ <[email protected]>wrote: >>>> >>>>> On Tue, 7 Jan 2014 16:18:00 -0600 >>>>> Gerald Coley <[email protected]> wrote: >>>>> >>>>> > Correct. It is actually booting form the SD and then loading off the >>>>> > HDD. The boards cannot boot direct off of USB. They need that >>>>> > intermediate step. You could also use a large thumb drive like a >>>>> > 128GB. >>>>> >>>>> You are correct those instructions should be modifed to note the >>>>> reliance on >>>>> the sd card or eMMC. >>>>> >>>>> I recall that the lack of booting straight from USB was designed in >>>>> but I don't recall what the reason was. Do you know? It's common >>>>> for devices to boot from USB and I even recall reading USB was checked >>>>> during the boot process, after SPI (I think). I may have read that in >>>>> the >>>>> TRM or is it SRM...? >>>>> >>>>> -- >>>>> For more options, visit http://beagleboard.org/discuss >>>>> --- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "BeagleBoard" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>> >>>> >>>> >>> >> > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
