Hi Lucan, > Dear sir, madam, > > > Our product uses the i.MX 6SoloX SOC with a Cortex A9 and M4, U-Boot > runs on the A9 and boots Linux. But before booting Linux it executes > the 'bootaux 0x7F800' command to boot the M4. However, Linux is > unable to initialize the USB when this command is executed. > > > This problem persist when: > > - there is no binary loaded on the M4 (and thus it is not code on the > M4 that's breaking the USB); > > - the bootaux command is called with a different address (and thus > not it is not booting the M4 that's breaking the USB). > > > The problem is solved when the bootaux command is removed from the > boot sequence.
This is very strange. I thought that bootaux loads the binary to memory and points Cortex-M's PC to it. > However, this way only the A9 boots and we would like > to boot the M4 as well. > > > Our U-Boot version is: 2015.04-master+gc75e0f3 > Would there be any chance to check newest master ? > > We are currently looking into different ways to boot the M4 from > Linux instead of U-Boot, however we were hoping you could help us too. > I do have a HW with NXP's Vybrid SoC (Cortex-A5 and M3). However, my used case doesn't require loading M3 firmware. > > Hope te hear from you soon, > > > Lucan de Groot > Embedded Software Engineer > + 31 (0)6 409 170 21 > lucan.degr...@quby.com | www.quby.com<http://www.quby.com/> | > subscribe to our newsletter<https://mailchi.mp/66cc8a1f175c/subscribe> > > Quby is hiring! Join our ambitious team to outsmart energy - > https://www.quby.com/careers > > > > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > https://lists.denx.de/listinfo/u-boot Best regards, Lukasz Majewski -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lu...@denx.de
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