Re: [PATCH 0/2] imx93_var_som: Enable AHAB support
> This is what I am concerned about: this hang causes the board to brick > and can no > longer be recovered since it has the fuse programmed to close the device, > right? Once the board is closed you can only boot from signed images. If the signed image is not working (hanging during relocation for instance), then you can always boot from a new one. All the interfaces: SD-card, UART, USB are still usable. I have tried many u-boot versions on my closed board until I had something working. So, no you do not end-up with a brick unless you cannot sign your image properly anymore. Or maybe I missed your point? Thanks, Mathieu
Re: [PATCH 0/2] imx93_var_som: Enable AHAB support
On Fri, Feb 9, 2024 at 11:25 AM Mathieu Othacehe wrote: > Once the board is closed you can only boot from signed images. If the > signed image is not working (hanging during relocation for instance), > then you can always boot from a new one. All the interfaces: SD-card, > UART, USB are still usable. > > I have tried many u-boot versions on my closed board until I had > something working. So, no you do not end-up with a brick unless you > cannot sign your image properly anymore. Thanks for the clarification. I will apply your v2 soon.
Re: [PATCH 0/2] imx93_var_som: Enable AHAB support
Hello Fabio, > Just wanted to make sure I understand: if someone programs the fuse to > close the board, > it will fail to boot U-Boot proper and this means that the board is > bricked. Is this correct? No. I fused the board and with this series applied and the three HAFDBS commits reverted, I can boot just fine on that board. Without reverting those commits, the SPL is working fine and u-boot hangs at relocation. It is 100% reproducible on my board. > Is the boot failure related to some malloc size needing to be increased? I tried that it has no influence. Thanks, Mathieu
Re: [PATCH 0/2] imx93_var_som: Enable AHAB support
Hi Mathieu, On Fri, Feb 9, 2024 at 5:05 AM Mathieu Othacehe wrote: > No. I fused the board and with this series applied and the three HAFDBS > commits reverted, I can boot just fine on that board. Yes, this part I understood. > Without reverting those commits, the SPL is working fine and u-boot > hangs at relocation. It is 100% reproducible on my board. This is what I am concerned about: this hang causes the board to brick and can no longer be recovered since it has the fuse programmed to close the device, right?
Re: [PATCH 0/2] imx93_var_som: Enable AHAB support
Hi Mathieu, On Thu, Feb 8, 2024 at 6:45 AM Mathieu Othacehe wrote: > > Hello, > > This enables AHAB support on the imx93_var_som. > I was able to test that I can boot from signed images on a closed board. > > There is one issue that has been discovered and that is discussed here: > https://lists.denx.de/pipermail/u-boot/2024-February/545404.html > > This series can still be applied in the meantime I guess. Just wanted to make sure I understand: if someone programs the fuse to close the board, it will fail to boot U-Boot proper and this means that the board is bricked. Is this correct? Is the boot failure related to some malloc size needing to be increased?
