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
