About MScho.6

MScho.6 · 2021-03-18

Hi,we have a custom board based on the stm32mp151c. It has on sdmmc3 a Silicon Labs WF200 Wifi Card attached. We tested this setup with the stm32mp157c-dk2 and it worked fine. Now, we do not see the message during bootup:mmc0: new high speed MMC card...

MScho.6 · 2021-03-04

We have a custom board based on the stm32mp151 that shall boot from emmc. I can flash alright, but when I switch the boot pins, the boot device remains on usb. I can see from arch/arm/mach-stm32mp/cpu.c, that boot_device is set to usb, here is the de...

MScho.6 · 2021-02-26

Hi!I have a custom board with custom device tree. As far as I can say, it works (boot over emmc) but the kernel gives a trace at the start. [ 0.255543] debugfs: Directory 'cpu0' with parent 'opp' already present! [ 0.261757] Unable to get STM32...

MScho.6 · 2021-03-08

Hi Patrick,thank you for you answer. We do not include the stm32mp157a-ed1-u-boot.dtsi in our device tree (we have a stm32mp151c anyway) and our alias is set to sdmmc2, since we use sdmmc2 for emmc. Also we did not touch OTP Word 3, so it should be 0...

MScho.6 · 2021-03-05

Hi @Lukas Brückner thanks, I was able to "fix" the problem with this patch:--- a/arch/arm/mach-stm32mp/cpu.c +++ b/arch/arm/mach-stm32mp/cpu.c @@ -483,9 +483,12 @@ static void setup_boot_mode(void) break; case BOOT_FLASH_SD: case BOOT_FLASH_E...

MScho.6 · 2021-02-26

I tried and the patch did it. Thank you and have a nice weekend.

MScho.6 · 2021-02-26

No, I do not believe it has to do with that. The second trace is from: drivers/cpufreq/stm32-cpufreq.c:67 if that helps. We have a discrete power supply. Maybe some misconfiguration on my side there?! What are the dt nodes one should look at?

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SDIO card not found on boot

u-boot on custom board will not use boot_device=mmc

Kernel trace with custom stm32mp151c board and device tree (Workqueue: events deferred_probe_work_func)

Re: u-boot on custom board will not use boot_device=mmc

Re: u-boot on custom board will not use boot_device=mmc

Re: Kernel trace with custom stm32mp151c board and device tree (Workqueue: events deferred_probe_work_func)

Re: Kernel trace with custom stm32mp151c board and device tree (Workqueue: events deferred_probe_work_func)