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* Stop the fan after after fan-probe After the fan-probe has completed drive the fan PWM GPIO to high if a fan was detected and let the OS take over. * Add SD_QUIRKS for hardware bringup / workarounds Add a new SD_QUIRKS flags property which can be used to disable high-speed mode (bit 0). Other bits are reserved for future use. * Change uart_2ndstage default to 1 on Pi5 Change the default to 1 because this gives useful diagnostics for device-tree loading with minimal overhead. Set uart_2ndstage=0 or BOOT_UART=0 to disable this. * Move M.2 HAT+ detection to early boot. Initialse M.2 HAT+ detection before DDR init to give NVMe drive firmware more time to boot.
rpi-eeprom
This repository contains the scripts and pre-compiled binaries used to create the rpi-eeprom package which is used to update the Raspberry Pi 4 and Raspberry Pi 5 bootloaders EEPROM images.
Support
Please check the Raspberry Pi general discussion forum if you have a support question.
Reset to factory defaults
To reset the bootloader back to factory defaults use Raspberry Pi Imager to write an EEPROM update image to a spare SD card. Select Misc utility images under the Operating System tab.