About hreysenbach

hreysenbach · 2023-03-13

Hello,I am having trouble booting OPTEE on a custom platform with 256MB of DDR3. The boot log is attached. I added some debug printfs and I can see that OPTEE freezes on 454 in core/arch/arm/kernel/boot.c. I believe this is the first time OPTEE start...

hreysenbach · 2023-03-13

We have made a custom board which uses the STPMIC but it is on I2C2. Unfortunately we do not have time to remake the board to move the STPMIC to I2C4 or I2C6 so I am trying to get Linux to boot with a modified STM32MP157D-DK1. I have connected pins P...

hreysenbach · 2022-12-31

I have a custom board with a STM32MP157AAB3 and I am trying to boot it with the SD card. I have tested the SD card on a STM32MP157C-DK2 and it boots to Linux fine. When I probe the SD card lines, I can see the clock is toggling for a long time and ...

hreysenbach · 2023-03-14

Hello @Kevin HUBER ,I believe that print is from TF-A when it checks to see how big the memory is. I have not changed the chip on the dev board (because that would be a lot of effort) and so it is still detecting 512MB.I have updated all of the DTS ...

hreysenbach · 2023-03-13

Just a quick update. I removed the I2C2 node from the OPTEE board device tree (along with the STPMIC node and regulators) and created fixed regulators instead (for VDD, VDD_CORE, VDD_DDR and V3V3). This allows the kernel to boot but I feel like this ...

hreysenbach · 2023-01-04

Hi @PatrickF ,Perfect, we'll add those pull-ups on the next revision.Great to hear about the UART. I'll double check the documentation to be sure.We have access to the USB pins but we need a breakout board which hasn't been designed yet. We were pla...

hreysenbach · 2023-01-03

Hi @PatrickF ,Thank you for your help, it was indeed the pull-downs that were causing the problem. When I removed them it booted to TF-A. I did notice that the pull-downs are present when using a level shifter so I think there was some confusion abo...

hreysenbach · 2023-01-03

Hi @PatrickF I do see some minor differences between our board and the dev board (STM32MP157C-DK2), the dev board has pull-ups on all of the lines while my board has a pull-up on D3 only and pull-downs on CLK, CMD and D0. There is no additional hard...

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STM32MP15 OPTEE Minimum DDR3

OPTEE Device Tree when using I2C2 with STPMIC

SD Card boot is not working, I get `SD_InitDetailedErrorDesc ( 0x0000001B )` when using the ROM Code Trace Analyzer. What does this mean?

Re: STM32MP15 OPTEE Minimum DDR3

Re: OPTEE Device Tree when using I2C2 with STPMIC

Re: SD Card boot is not working, I get `SD_InitDetailedErrorDesc ( 0x0000001B )` when using the ROM Code Trace Analyzer. What does this mean?

Re: SD Card boot is not working, I get `SD_InitDetailedErrorDesc ( 0x0000001B )` when using the ROM Code Trace Analyzer. What does this mean?

Re: SD Card boot is not working, I get `SD_InitDetailedErrorDesc ( 0x0000001B )` when using the ROM Code Trace Analyzer. What does this mean?