4 Replies Latest reply on Jan 15, 2021 9:28 AM by droman

    picozed 7030 does not boot

    droman
    droman Jan 13, 2021 8:43 AM

      We are trying to generate a bootable image using yocto but we had some problems. After generating the system configured for the picozed-zynq7 machine ( provided by meta-xilinx-bsp) it doesn't boot. The next error is shown in the console:

       

      U-Boot SPL 2020.07 (Jul 06 2020 - 19:22:53 +0000)

      Trying to boot from MMC1

      MMC: no card present

      spl: mmc init failed with error: -123

      SPL: failed to boot from all boot devices

      ### ERROR ### Please RESET the board ###

       

      I doesn't shows an u-boot shell neither. Which steps could we take to debug this and fix it?

       

      Thank you very much

        • Re: picozed 7030 does not boot
          drozwood90
          drozwood90 element14 Team Jan 14, 2021 9:57 AM (in response to droman)

          Hi there,

           

          Is there a reason you are using meta-xilinx instead of meta-avnet?

          Can you validate that your SDCARD has been written properly?  It seems there has been some challenges recently with sdcards not being setup properly.

           

          --Dan

            • Re: picozed 7030 does not boot
              droman
              droman Jan 14, 2021 10:39 AM (in response to drozwood90)

              Thank you for your response.

               

              The only reason to use meta-xilinx is that it supported the different boards we used in the past. I took a look to meta-avnet and seems it has support for the fmc2 carrier board but we use a custom carrier, I don't know if it will at least boot if the carrier is not the same? Just in case I will try with meta-avnet.

               

              If I copy the binary boot.bin provided by the picozed bsp file it boots properly, so It seems it writes correctly, the problem only appears with the boot.bin generated by yocto. I have been trying different u-boot versions and seems that before version 2020.07 it doesn't print anything to the serial port. With the 2020.07 version of u-boot it prints the MMC error. I also tried to apply a device-tree patch that enables sdhci0 but it didn't worked.

               

              Regards

                • Re: picozed 7030 does not boot
                  drozwood90
                  drozwood90 element14 Team Jan 14, 2021 10:43 AM (in response to droman)

                  Hi there,

                   

                  I'll run this by one of our PetaLinux experts.  Maybe they can see something in your response that might help them help you.

                   

                  --Dan

                    • Re: picozed 7030 does not boot
                      droman
                      droman Jan 15, 2021 9:28 AM (in response to drozwood90)

                      Some more info, after applying the attached patch to u-boot_2019.07 it shows the next message

                       

                      U-Boot SPL 2019.07 (Jan 15 2021 - 15:08:00 +0000)

                      mmc boot Trying to boot from MMC1

                      sdhci_set_clock: Internal clock never stabilised.

                       

                      Playing around with the dts I found that removing the "u-boot,dm-pre-reloc;" line from the sdhci node it shows a different message (all of the referenced files where in the sdcard, I've also tried to switch the sdhci1 and sdhci0 and it was the same)

                       

                      U-Boot SPL 2019.07 (Jan 15 2021 - 15:12:43 +0000)

                      mmc boot Trying to boot from MMC1

                      spl_load_image_fat_os: error reading image system.dtb, err - -2

                      spl_load_image_fat: error reading image u-boot.img, err - -2

                      SPL: failed to boot from all boot devices

                      ### ERROR ### Please RESET the board ###