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I am trying to make GPIOs start up low based on a patch to my yocto u-boot recipe. I apply a patch to my u-boot recipe using devtool. The patch adds new inputs to the board_init file in u-boot (which ...
Camstillo's user avatar
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77 views

I'm trying to set lsm=landlock,lockdown,yama,integrity,apparmor,bpf on a Arch Linux ARM system. The options seems to be set in /boot/boot.txt. In its original form, it looks like this: # After ...
zar3bski's user avatar
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I using u-boot v2017.09 for rk3566, i want to load kernel from FIT(kernel, dtb, ramdisk). I hardcoded bootargs(boot_get_cmdline) in u-boot: int boot_get_cmdline(struct lmb *lmb, ulong *cmd_start, ...
artEA's user avatar
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1 vote
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50 views

I need your help or advice on how to assemble the SPL(MLO) for my b2232 board from St. When building without SPL, uboot.bin is being assembled, and I can run it via JTAG like this, but I'm trying to ...
user30944768's user avatar
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I am trying to create a buildroot config (with make menuconfig) that adds a uboot environment variable. I detected already BR2_TARGET_UBOOT_DEFAULT_ENV_FILE but this one replaces all existing ...
mrh1997's user avatar
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200 views

I'm porting a board over to a newer version of Yocto and this includes U-Boot. In the old U-Boot the MAC address was set in uEnv.txt by setting the ethaddr variable. This worked well as every board ...
Thomas Snyman's user avatar
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1 answer
225 views

I have compiled u-boot from source for x86_64 platform. git clone https://source.denx.de/u-boot/u-boot.git cd u-boot make qemu-x86_64_defconfig The u-boot.bin binary is generated successfully. ...
user2679476's user avatar
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269 views

How do I force u-boot to read spi nor flash in 4 byte addressing mode rather than switching from 3 bytes to 4? Hardware: I have a custom-built board based on mt7628nn with 128 MB DDR2 RAM and 32 mb ...
Baldeagle's user avatar
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105 views

I'm interested in porting the bootcount feature in u-boot to the TI AM62x SoC. The AM62x appears to take inspiration from its predecessor, the popular AM33x. Both SoCs have an RTC register block ...
thom_nic's user avatar
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I am new to Linux and I have a question about U-boot. Currently I am using an Agilex 7 FPGA development board that is connected to my PC through PCIe, and I am uploading my u-boot.bin from the SD Card ...
jon's user avatar
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I am currently using Linux kernel version v5.15-stm32mp-r2.tar.gz and U-Boot version v2021.10-stm32mp-r2.tar.gz for my project based on the STM32MP family. I have recently upgraded the Linux kernel to ...
thecdoctor's user avatar
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600 views

I'm struggling to understand what U-Boot and/or Coreboot does that a RISC-V SBI (Supervisor Binary Interface) doesn't. I understand that the SBI's function in abstracting features, but I don't ...
CocytusDEDI's user avatar
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1 answer
147 views

Currently im porting the vendor's uboot2022.10 for spacemit k1 soc on bananapi bpif3/lpi3a to the mainline version, and encounter some problems. I've add the driver definition in defconfig ...
MAN TABBLE's user avatar
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288 views

I'm trying to build ARM Trusted Firmware and U-Boot for the i.MX8M Plus on a Phytec phyCORE-i.MX 8M Plus/phyBOARD-Pollux dev kit. When I attempt to run it, I find that execution hangs after the U-Boot ...
qt_prashle's user avatar
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117 views

I was messing around with a cheap IP camera from Amazon. The board uses an Ingenic T20, which seems to be very common for this application. I desoldered the QSPI NOR Flash and dumped it with another ...
user3630570's user avatar
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163 views

I have a working system, based on the EVM board for the TI Sitara AM64x. It is running u-boot 2024.04, compiled from the TI SDK 10 and can boot my ELF file containing my app and threatX OS using the ...
TabascoEye's user avatar
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I'm setting up a custom Yocto distro that will go into a custom board (right now still using dev board). I have custom partitions A & B for boot & root and I'm implementing RAUC, I've reached ...
Humusk's user avatar
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I am trying to upgrade a yocto build to scarthgap. On kirkstone everything worked fine and we got a bootable image. While doing so, I struggle with u-boot. Already had to use 2023.07.02, because the ...
Citrullin's user avatar
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246 views

I’m trying to run a simple baremetal code on U-Boot on my SK-TDA4VM board (Texas Instruments), which has ARM Cortex-A72 and Cortex-R5 processors. The code works fine when executed via Code Composer ...
Heverton's user avatar
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1 answer
199 views

I am trying to enable all UARTs on beaglebone with adding their Device Tree overlays. I am able to do it by adding uEnv.txt like this: uboot_overlay_addr4=/lib/firmware/BB-UART1-00A0.dtbo ...
strafor's user avatar
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139 views

I've been studying how U-Boot gets loaded into RAM, and how it loads the kernel into RAM and then transfers control to the kernel. First, the MLO loads the U-Boot program into RAM. Through the U-Boot ...
전기현's user avatar
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1 vote
0 answers
218 views

On my Raspberry Pi 4B board, I'm trying to load file from USB during my boot.scr script, but when I call USB start or USB reset command, I get following error: starting USB... Bus xhci_pci: ...
Thugmek's user avatar
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0 answers
100 views

I have programmed the OTP fuses in U-Boot to set the MAC by following this guide. https://wiki.st.com/stm32mpu/wiki/How_to_update_OTP_with_U-Boot#:~:text=The%20fuse%20command%20allows%20you,(for%20a%...
stephenbates1971's user avatar
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1 answer
153 views

Is there a way to call U-Boot API functions from within an ARM program loaded with the go command ? I see that the U-Boot API is available after startup at an address defined in the environment ...
Onirom's user avatar
  • 610
0 votes
1 answer
565 views

neuberfran@raspberrypi:~$ lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 12 (bookworm) Release: 12 Codename: bookworm neuberfran@raspberrypi:~...
neuberfran's user avatar
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1 vote
2 answers
1k views

I have a python script that is supposed to run a Linux update on an iMX6 device. I can reboot Linux via serial connection. I can see the device rebooting (console output is transferred). However, when ...
Markus Klingsiek's user avatar
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1 answer
502 views

Having trouble booting linux from an SD card on a RK3566 Board Here is my partition structure. Part Start LBA End LBA Name Attributes Type GUID Partition GUID ...
cvh's user avatar
  • 185
-1 votes
2 answers
1k views

I am trying to boot up a virtualized machine using QEMU. I have created a raw disk image named disk.img. It contains two partitions: the first being a FAT32 bootable partition and the second being a ...
IsaiahS's user avatar
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0 answers
140 views

I want to build envtools for my Ti chip. And I use the command to build it, but I got error below. #make ARCH=arm CROSS_COMPILE=aarch64-linux-gnu- envtools scripts/kconfig/conf --syncconfig Kconfig *...
Eric Hsieh's user avatar
  • 17
1 vote
0 answers
760 views

U-boot with raspberry pi defaults to booting from the first FAT partition on the image. To work well with a system update tool (RAUC) u-boot needs to somehow know to change to the updated partition ...
Antoni's user avatar
  • 384
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0 answers
378 views

I'm trying to make a raspberry-pi CM4 work with u-boot and an ext4 boot partition instead of the regular vfat. This is necessary for an OTA update to happen also for the boot partition with a tool ...
Antoni's user avatar
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0 votes
0 answers
189 views

I'm creating standalone application for u-boot that is run as a os kernel image. I need to do some setup on custom hardware and after I'm done I would like to set some u-boot env variables. In u-boot ...
CaptSiro's user avatar
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1 vote
0 answers
235 views

fs_opendir is not supported in ext4 filesystem, but I need to access files in a ext4 filesystem directory in uboot. Here is what I found in uboot source code: #if CONFIG_IS_ENABLED(FS_EXT4) { ...
Quan Wen's user avatar
  • 11
0 votes
1 answer
738 views

I am trying to boot an embedded system on the Beaglebone Black (BBB). I'm using Buildroot to build my boot files and root filesystem. After setting up a boot partition with the necessary files on an ...
Andy's user avatar
  • 167
2 votes
1 answer
293 views

I prepared an SD card with RPi OS Lite and have modified my config.txt to enable jtag and point it to boot u-boot.bin file, instead of default kernel.img file. When I insert an SD card, my RPi-3B+ is ...
InsaneCoder's user avatar
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0 votes
1 answer
264 views

I want to load a firmware on the imx7d M4 core. I am using a colibri imx7d-eMMC (MCIMX7D5EVM10S) SoC with a yocto linux build installed which include u-boot bootloader (details below). When I load the ...
Francesco Osti's user avatar
  • 11
12 votes
1 answer
819 views

I need to create a 3-step macro in U-Boot: Use dhcp to download an image to memory. This sets filesize Test if $filesize > $SOMELIMIT, print a message, and stop Would write the downloaded image to ...
user3696153's user avatar
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0 answers
775 views

These days I'm playing with my old ARM Chromebook model "SNOW". As you probably know,this kind of Netbook can load an external operating system using the sd card slot or the usb port. ...
mister_smith's user avatar
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0 votes
1 answer
1k views

I am porting Yocto into my board. I wrote u-boot & kernel graphics drivers for my display. Everything works fine. The only problem I have is: u-boot splash screen is displayed for a while when ...
gulpr's user avatar
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1 vote
1 answer
2k views

I'm using an image I created for Orangepi Zero with Buildroot. Trying to manually load a device tree overlay. Here's what I do in Uboot command line: load mmc 0:1 ${kernel_addr_r} /boot/zImage load ...
no more sigsegv's user avatar
  • 614
0 votes
2 answers
6k views

I have built the busybox minimal file system which works fine if I mount the rootfs from the SD card. But, if i convert the file system into initramfs and load it in the ram, it is not able to run the ...
Sheikh Muhammad Junaid Aslam's user avatar
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0 votes
1 answer
1k views

I have a proprietary ARM device with very limited tools and SDK, but I can manage to start an Android bootloader in RAM. On the host PC, I see: # fastboot devices SERIAL Android Fastboot # lsusb ...
gregoiregentil's user avatar
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0 answers
354 views

In order to implement SWUpdate Dual Copy (A/B) update on an eMMC embedded Linux sistem, I'd like to partitioning the eMMC so as to have two kernel partitions with the goal of switch from uImageA to ...
Sbon's user avatar
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0 votes
1 answer
223 views

We are currently in the process of migrating a yocto project from whatever is compatible with Xilinx v2020.2 to whatever is compatible with Xilinx v2022.2. One particular problem is the mismatch ...
Schottky's user avatar
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0 votes
1 answer
735 views

I am using the SAMA5D27-SOM1-EK-SD evaluation kit and I would like to make some changes to U-Boot, in particular the Autoboot settings. I am able to load a kernel image using Yocto, and by default ...
GMAN_82's user avatar
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0 votes
1 answer
730 views

I'm currently working on a test build for an embedded yocto build that runs from RAM. Using yocto I generate a fitimage containing an initramfs which is run from RAM on boot. In the past this has ...
Bryce C's user avatar
  • 11
1 vote
1 answer
816 views

Background I have an embedded Android device device that uses the U-Boot bootloader. The system also uses the Busybox suite. I have access to the U-Boot shell through a UART port and can dump, modify, ...
Fleshy's user avatar
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1 vote
0 answers
51 views

I am compiling u-boot v2020.01 source code separately (petalinux not involved) for Xilinx Zync706 Board on Ubuntu 18.04.06 LTS Executed the below following command for compilation. export ...
utkarsh rawat's user avatar
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0 votes
1 answer
3k views

Hi I was able build a system image and successfully boot my Orange PI Zero 3 using buildroot. In my endeavour of learning Linux Device Drivers, I now need to modify the device tree. To do this I ...
Anton A's user avatar
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0 votes
1 answer
291 views

I have an odd problem, that I have noticed. For the purpose of building ancient uboot (2012.10), I am using an external toolchain (uClibc-ng). I am building ARM target. Here's the command that I am ...
zbro's user avatar
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