Waldemar, You can applied the following series on current U-Boot master branch (a0759684e015bd7252be3af508c0fcfdbb8ec5dc):
https://patchwork.ozlabs.org/project/uboot/list/?series=318991 Thanks Patrice On 9/19/22 16:36, Patrice CHOTARD wrote: > Hi Waldemar > > On 9/19/22 13:48, Waldemar Brodkorb wrote: >> Hi again, >> >> Waldemar Brodkorb wrote, >> >>> Hi, >>> >>> I am trying to run u-boot on a STM32F746G-DISCO device. >>> I am configuring u-boot with stm32f746-disco_spl_defconfig. >>> >>> But nothing happens on the LCD nor on the serial console. >>> I use screen /dev/ttyACM0 115200 under Linux to connect. >> >> It seems my USB port on my laptop was buggy, after reboot I get >> following output via serial console: >> >> U-Boot SPL 2022.07 (Sep 19 2022 - 13:20:08 +0200) >> Trying to boot from XIP >> >> >> U-Boot 2022.07 (Sep 19 2022 - 13:20:08 +0200) >> >> Model: STMicroelectronics STM32F746-DISCO board >> DRAM: 8 MiB >> Hard fault >> pc : 080087d6 lr : c05aa775 xPSR : a1000000 >> r12 : 00000010 r3 : 080087c1 r2 : 0805344d >> r1 : 08008001 r0 : c05aa000 >> Resetting CPU ... >> >> resetting ... >> >> I get a Hard fault. I then tried an older version of u-boot using >> the information from https://github.com/fdu/STM32F746G-disco_Buildroot >> as a hint. With U-Boot 2018.11 I get a working binary (I had to >> disable Falcon mode): >> >> U-Boot SPL 2018.11 (Sep 19 2022 - 13:41:50 +0200) >> Trying to boot from XIP >> >> >> U-Boot 2018.11 (Sep 19 2022 - 13:41:50 +0200) >> >> Model: STMicroelectronics STM32F746-DISCO board >> DRAM: 8 MiB >> Flash: 1 MiB >> MMC: sdio@40012c00: 0 >> In: serial >> Out: serial >> Err: serial >> usr button is at LOW LEVEL >> Net: >> Warning: ethernet@40028000 (eth0) using random MAC address - >> fe:f8:94:5f:5e:26 >> eth0: ethernet@40028000 >> Hit SPACE in 3 seconds to stop autoboot. >> Wrong Image Format for bootm command >> ERROR: can't get kernel image! >> U-Boot > >> >> Seems like a regression to me. >> >> best regards >> Waldemar > > There are several issues with SPL with STM32F7 based boards. > I am currently working on it. > A series will be submitted very soon > > Patrice