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Resolved! How to disable STM32MP1 cortex M4 core

We are using a STM32MP157 chip on a custom low-power design and don't need the Cortex M4 core. We would like to disable it properly to reduce power consumption and also remove dedicated support in linux kernel.Is there any recommended way to do this ...

PGE by Associate III
  • 1616 Views
  • 5 replies
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Resolved! STM32MP157 not exiting suspend to Linux

We are seeing some strange behavior on our stm32mp157 system exiting suspend mode.This is not a 'weston' build, so we enter (deep) suspend mode by executing "echo mem > /sys/power/state" and the system powers down and enters low power.root@stm32mp157...

drew by Associate III
  • 2974 Views
  • 7 replies
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Resolved! LVDS Display Troubleshooting

Hi all,I am trying to bring a LVDS display up. Display: BOE EV121WXM-N10-1850. Datasheet: LinkDriving MPU : STM32MP1. I am using VisionSoM STM32MP1 based evaluation Kit. LinkThe firmware changes required to make the device up are part of git: LinkI h...

NPal.2 by Senior
  • 1657 Views
  • 2 replies
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Resolved! Error initializing wifi module with SDIO and voltage translation

Hello all,I'm getting following error on our custom board while initializing sdmmc3 as wifi module with SDIO:~# dmesg | grep -i sdio -B 1 [ 3.410271] mmci-pl18x 48004000.sdmmc: no support for card's volts [ 3.415001] mmc0: error -22 whilst init...

DmnSd by Associate III
  • 2013 Views
  • 2 replies
  • 0 kudos

Resolved! How to activate hibernation on STM32MP15X with embedded Linux?

In our project we are currently trying to decrease boot time and energy consumption of an embedded linux running on an STM32MP153.To improve energy consumption we are trying to activate hibernation, in order to test suspend-to-disk as well as the hyb...

RAhlb.1 by Associate II
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  • 4 replies
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How to reduce CPU clock frequency on STM32MP157C?

Hi,I'm interested how to change CPU frequency from 650MHz to lower frequency. I looked those two links:https://wiki.st.com/stm32mpu/wiki/How_to_change_the_CPU_frequencyhttps://wiki.st.com/stm32mpu/wiki/Clock_device_tree_configuration_-_Bootloader_spe...

NGajic by Associate III
  • 1909 Views
  • 5 replies
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Resolved! RPMSG SDB cached buffer

We follow this: https://wiki.st.com/stm32mpu/wiki/How_to_exchange_large_data_buffers_with_the_coprocessor_-_principle and this: https://wiki.st.com/stm32mpu/wiki/How_to_exchange_large_data_buffers_with_the_coprocessor_-_example#Linux_driversarticles...

mishuk by Associate III
  • 1402 Views
  • 4 replies
  • 0 kudos