Questions tagged [u-boot]
U-Boot stands for Universal Boot. It's an open source powerful bootloader that can be used in addition to a standard bootloader on RaspberryPi. This is for issues with booting up the Pi while using U-boot.
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U-Boot on alternative pins
My GPIO 14/15 pins (and I believe UART0 and UART1) are broken, so I cannot use the default serial port for U-Boot.
How can I get U-Boot to boot on a different serial port on my Raspberry Pi 4B?
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Cannot enable usb ethernet gadget on u-boot with pi-zero-2-w
I am following this tutorial to establish tftp on my rpi: https://bootlin.com/blog/tftp-nfs-booting-beagle-bone-black-wireless-pocket-beagle/. But I cannot make u-boot start usb ethernet gadget.
I ...
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Boot issue while using u-boot with Raspberry Pi 4 in 32-bit
I am trying to integrate 32bit u-boot for Raspberry Pi 4B 32bit. Below are my steps:
Installed Raspbian (bookworm) 32bit on SD card using Raspberry Pi Imager.
Built u-boot binary using ...
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CM3 GPT Partition Table and U-Boot
I am working in yocto currently to develop an image for my compute module boards (both CM3 and CM4) , It was my understanding that using yocto I should be easily able to switch between the hardwares ...
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Redirect U-Boot console to UART2 in RPi 4B
This is similar to this question, but for different hardware and with some things already tried. My ultimate goal is to have bluetooth on UART0 and debug on UART2.
I use RPi 4B and need to redirect U-...
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Kernel doesn't start after tftp load
I'm trying to set up a rpi model 3b with a yocto distro and u-boot.
I've built the core-image-minimal using bitbake and I have the RPI_USE_U_BOOToption set in my local.conf.
The created image runs ...
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RPi 3B+ & Yocto & U-Boot : free UART pins to be available for a RS232/485 HAT
I have the following hardware/software setup:
Sferalabs StratoPi Base (Raspberry Pi 3B+ with a HAT for RS232/485)
Distro built with Yocto and meta-raspberrypi on thud branch
U-Boot
SysVinit
I want ...
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Raspberry Pi CM4 with buildroot not loading Wi-Fi wlan0 interface
I am running a custom buildroot + uboot software with a 5.15.78-v8 linux kernel for a Raspberry Pi CM4 and am finding that the Wi-Fi driver by default isn't being loaded.
In dmesg, I am seeing these ...
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What actions modify u-boot environment variables?
Update 2022-10-11: Regarding the Adafruit Ultimate GPS HAT, in Ubuntu 22.04 LTS it works right out of the box on a Raspberry Pi 4. Maybe using Ubuntu 22.04 LTS on a Raspberry Pi 3 also has the same ...
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Unknown partition table type error from u-boot running on Raspberry Pi 4
I've been trying to run the Linux on my Raspberry Pi 4 board. But, I couldn't even achieve running the u-boot properly. The board launches up without any problem and starts running the u-boot. The u-...
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Raspberry Pi Secure Boot Configurations with Authentication IC
I am working on the Raspberry Pi Compute Module 4 with raspbian buster (command line only) os.
I want to secure my Raspberry Pi, I have read some solutions on that.
As I see there some manufacturers ...
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redirect U-Boot Console to UART4 in rpi cm4 board
I am using Raspberry pi CM4 for my project. The Hardware is designed in such a way that i need to redirect all the debug messages coming through serial UART0 to UART4.
I Use U-Boot as a boot loader ...
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vc4-fkms-v3d not loading on custom system build with buildroot using u-boot (RPi4)
I try to build a custom system using buildroot for RPi4 64Bit that should run a Qt application on the 7" touchscreen. Relevant parts from my buildroot (2020.11.1) defconfig:
BR2_aarch64=y
...
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How to save and compare U-Boot environment and fw_env.config
I'm using Yocto Dunfell and attempting to make use of Mender (https://mender.io) for OTA updates. My problem is similar to the question posed in the Mender forum here.
However, my question is related ...
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Dual or Triple Boot Possible? [duplicate]
I'm wondering if it's possible to dual boot Raspbian, LineageOS, and RetroPie on an SD card? I've looked around and it seems like there is an issue with it not going straight into a bootloader like ...
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