U-boot Download File

hi guys, I'm afraid I don't remember... It has been more than 3 years since I did it once. Maybe something changed? I don't really recall any blocking issues except having no active ethernet interfaces and having to use a filetransfer protocol over serial. Sorry guys.

Here's what I did after being stuck in uboot for a long time. The SRX I bought was no longer under support and I totally knew it was something with the environment options in this u-boot, which was preventing it to go to 'loader>' but nowhere could I find an example of the working set of options. So I bought another working SRX100 and I run a comparison of the varibles, and surprise - I had to modify several. Attached are the options that I am using and the command in specific that made it go from u-boot '=>' prompt to 'loader>' where I used TFTP to move on further with the upgrade:

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I started with bitbake imx-image-full. But then build fail in u-boot-imx. Then I start building bitbake u-boot-imx and get the error. I have attached the complete error log with this post. Please, have a glance and let me know what I'm missing. I'm following i.MX Yocto Project User's Guide (nxp.com) guild.

Thank you for your response. I gave my build folder a different name as it was my second time to build it. I'm believe it's fine. In the first time I try to build machine imx8mm-evk and not imx8mm-LPDDR4-evk. Can you explain me what do you mean by clean the environment. Even on the first time when I try to build imx8mm-evk machine, it gave me the same error. Please, let me know if there is something wrong I'm woding.

I really appreciate your help. I'm new to this complete Linux build process using Yocto. Can you tell me how can I use Binman instead. What exactly I need to do. Do I just have to comment out all CREATE_ARCH_SYMLINK under all of the file you have mention. Do I have to add something so it will use binman.

Thank you Joseph for your help. I'm able to build latest kernel for imx8mm-lpddr4-evk. After you mentioned about the environment clean. So, I start complete process from the beginning. But when I install the following packages

I got it now. The uboot tries to place the environment it the media wich it is booted from. So I can configure ENV_IS_NOWHERE and ENV_IS_MMC parallel and in the case I boot over serial download mode it takes a temporaly (NOWHERE) environment and in the case of booting from sd-card or emmc it takes the environment in MMC. Sd-card or emmc depends on the boot media.

When I switch to boot-mode usb-serial-download I can detect my board with ./uuu lsusb and I can download my uboo-image with ./uuu SDPS: boot -f u-boot-imx.bin. But in that case my device did not jump automaticaly into uboot fastboot mode and I can't talk to my device over uuu-tool.

I did some investigations and figgured out that the u-boot-nodtb.bin file seems to be my problem. I built the uboot-image with imx-mkimage tool and when I exchange the u-boot-nodtb.bin with an old one the uboot starts automaticaly in fastboot mode.

On the resource center here under Additional Resources there is the SD card OOB QSPI Demo that should be helpful with how the device tree and u-boot files should look. For the SD card OOB QSI Demo copy the files found in this compressed file to a microSD card and boot the ZYBO from it to restore the Quad SPI flash with the factory default. It will take several minutes to complete.

I moved this thread to a sub section where more experienced embedded linux engineers look. I would suggest using the supported Petalinux projects available at the Petalinux Support for Digilent Boards page which includes the Zybo.

I will reach out to more embedded linux engineers to see if they have any input for you. I did find some web pages that look like they would be helpful here and here .The Xilinx's u-boot might be helpful as well.

Ok guys so i noticed on all the wave 2+ APs cisco are now using the U-boot bootloader and documentation for it is little to none.

I have a good amount of experience recovering and restoring APs. When i deploy APs for clients i prefer to format the flash and reinstall the newest IOS from scratch via TFTP or Xmodem send file command.

Ive been searching through some of the U-Boot commands and see it is possible to set environment variables just like the old SET command and i also see tftp boot options etc....

showvar - print local hushshell variables

sleep - delay execution for some time

source - run script from memory

sp - scan and detect all devices on PCI-e interface

sspi - SPI utility command

switchCountersRead- switchCntPrint - Read switch port counters.

I know iam getting close here but iam not sure if iam using the correct load addr and or if the command is compatible with a tar file containing a full mobility image, i have also tried a light weight image as well.

Hi did we all resolved this section. I have 4800 series in capwap 8.7.106 which I wanted to move away to mobility based. I downloaded the software but when I try to ap-type mobility or archive commend it always says the file corrupted. I tried all versions. In the beginning it says some same issue and I think we need to erase the flash format and load capwap other image like 8.3 or 8.5 and then convert to mobility image. I need some help how to delete existing portion reflash and start fresh from uboot. Can some one help

thanks for the response and i am able resolve it now. thanks, how much normally that would cost to get a smart net support for individual account for only wireless devices. my existing authorization from my corporate account does not have that specific privilege for that models..

thanks for your time to write on this. i tried different versions and for everything it says, the file is not authorized to run. when i check the date of the access in u-boot prompt, uboot>>date (enter)

when i try to change the date with date comment and syntax is date [MMDDhhmm][[CC]YY][.ss] and I am in central and to change to current date and time i execute date 100211432023.21 but what i get again is 2036-09-18 (Thursday) Time 18:42:05

i am not able to chnage it. if we understand the images are signed and created with date validy and will that be an issue here and i am not able to change the date of the ap in U-Boot>> prompt. is there any thoughts and advise please? also i do not have contract with CISCO and can you share me the 15.3.3-JPN1 and my id is diva.varadam@gmail.com. thanks and appreicate your help.

Finally I am able to figure out the issue and resolved it. my AP was running 8.7.106 CAPWAP and when I try to upgrade to 8.10.XXX any version, it was throwing disk space error, insufficient space in part2 and unable to extract the tar file and the migration fails. So finally what I did upgraded the device to ap3g3 15.3.3.jpj3a and then to ME 8.10.185 and all went fine. i am able to configure the controller and the ap now and everything works fine. But in this process I bricked one the of 4800 while I upgrade the firmware and that AP is completely dead and no display however in POE switch port, i am able to see that the device is getting the power from the switch and some oneboard LED's are blinking while i connect the power. I am sure I screwed the UBOOT loader and is there any way that i can restore it? i tried all the reset factory options nothing worked. is there any hardware shop method to recover the flash and reflash it? the access point is 4800.

This is a hugely important feature for SoCs and I cannot imagine it was overlooked, but I have been blocked on trying to get this feature to work for months. If there is some bug, I would like to report it or at least how to diagnose the problem.

Right. That is fine.

You should be able to build u-boot-with-spl.sfp so that you can get through the SPL, which is working fine as far as I can tell.

Then you should be able to point u-boot to a script that contains commands to interface with the FPGA manager in order to load a CycloneV FPGA image off of the SD Card or out of SPI Flash and program it into the FPGA

Right now, I can not do this and I do not know anyone on this forum who has. Back at Christmas time, I emailed Tom Rini, who at that time had the latest u-boot commits to socfpga_cyclone5_defconfig, detailing the issues and asking for guidance. He never got back to me, nor has anyone been able to program CycloneV FPGA from u-boot since this new build flow came out.

It is not neccessary to have the FPGA programmed to boot the kernel. It may lead to problems later in the boot process, if you have any devices in your DeviceTree that rely on a programmed FPGA.

You should skip this step for now.

@thaler

I know I can get into the kernel. I have done this with the default config in the u-boot that you shared earlier. I think the arguments for the script I was using were not right for booting the kernel, even if they were correct for programming the FPGA.

I really want to write platform drivers and load them at boot so everything in the kernel is initialized at login. (I like automating things.) To do this, I need the fabric configured before I start probing the AXI busand the kernel enumerates devices. That is my underlying motivation for this whole thing, even though I know it is not necessary. 152ee80cbc

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