Stack Overflow
Stack Overflow

Questions tagged [u-boot]

Das U-boot is a GPL'd bootloader for embedded boards supporting multiple processor architectures.

Das U-Boot (Universal Bootloader) is an open source, primary boot loader used in embedded devices. It is available for a number of different computer architectures, including PPC, ARM, MIPS, AVR32, x86, 68k, Nios, and MicroBlaze.

1037 questions
5
votes
0 answers

Booting kernel from SD in qemu (ARM) with u-boot

I'm quite new to embedded systems and I'm playing around with ARM on qemu. So I've run into problem booting linux kernel image from an emulated SD on versatile express with cpu cortex-a9. I prepared everything in the following order: first, I've…
rfx
  • 394
  • 1
  • 6
  • 16
5
votes
3 answers

How to get to menuconfig for u-boot in Yocto environment

I'm using Yocto for the first time for an ARM embedded system with a Xilinx Zynq. I want to make some configuration changes that requires going in the menuconfig utility. Yocto documentation shows how to do it for the Linux Kernel bitbake yocto-xlnx…
Sylvain Huard
  • 1,378
  • 6
  • 18
  • 29
5
votes
1 answer

U-boot to load two images on separate cores

I have NXP/Free-scale Imx6 sabre lite development board. My task is to flash two OS kernels (Linux and RTOS)in such a way that linux runs on core0 and RTOS on core1. I have 1GB DDR3 in which i have to allocate first 128MB for RTOS and rest for LINUX…
saravanan k
  • 75
  • 7
5
votes
0 answers

U-BOOT Displaying splash screen on BeagleBone Black and LCD

I'm trying to display a splash screen on a BeagleBone Black with the Chipsee 7" LCD expansion board. I'm wondering how difficult this is with the latest U-Boot 2016 ? I can see that there are some framebuffer drivers available (am335x-fb.c) but…
sandeep bhuyan
  • 51
  • 4
5
votes
1 answer

Can u-boot support more than one ethernet port?

I want to ping out of multiple ethernet ports. Is there an inherent restriction where u-boot only supports a single ethernet port?
tarabyte
  • 17,837
  • 15
  • 76
  • 117
5
votes
1 answer

How to get uBoot to work with a squashfs / What is FDT in uBoot?

I set-up the Kamikaze toolchain (from openwrt), and compiled Linux 2.6.30.x kernel for an AMCC PPC405ex kilauea reference board. However, for some reason I am doing something wrong in uBoot, as I am not able to run the kernel from an squashfs image.…
Kimvais
  • 38,306
  • 16
  • 108
  • 142
5
votes
1 answer

SQUASHFS error: Unable to read page, ..., size

I'm working with embedded ARM platform with built NAND flash. My roofs partition is squashfs. Both u-boot and kernel use OMAP_ECC_BCH8_CODE_HW. The problem is that some boards (not just one) stopped working after a power outage (they were used for…
jbacic
  • 53
  • 1
  • 1
  • 4
5
votes
1 answer

How Do I get booting log for U-boot

I know I can get Linux booting log using dmesg command but don't know how can get booting log of U-boot when my system just started.I Tried Go-ogling also but all I got is dmesg reference everywhere. Also I am not sure what is CRM in U-boot? I am on…
Amit Singh Tomar
  • 8,380
  • 27
  • 120
  • 199
5
votes
1 answer

u-boot - select the correct linux image

I want to let u-boot select between 2 linux kernel images based on a criterion. For example, I have uImage1 and uImage2 in SPI, u-boot checks the CRC of uImage1 and if ok, boots up uImage1 else boots up uImage2. Is there an option in u-boot that I…
Mani
  • 53
  • 4
5
votes
2 answers

U-Boot hangs while loading kernel?

I am working on Freescale board imx50evk. I have built the uboot.bin and uImage using LTIB (linux target image builder). At the U-Boot prompt I enter the bootm addr command, and then it hangs after showing the message "Loading Kernel..." > MX50_RDP…
ASB
  • 324
  • 1
  • 2
  • 7
4
votes
2 answers

Beagleboard: Erased NAND flash and now not booting

I have a Beagle board OMAP3530-GP and I had copied my kernel and rootfs into two partitions of the SDcard and wanted to boot it. partition 1 of the SDcard: FAT32 boot partition with the following files in the same…
user900785
  • 423
  • 3
  • 14
  • 32
4
votes
2 answers

uboot- MMC no SDcard

I am trying to get a linux kernel with a linux rootfs running on an imx51 Freescale board. I compiled linux kernel, root file system and u-boot and copied the image to SD-card: partition 0: boot partition 1: rootfs and linux kernel However I have…
user900785
  • 423
  • 3
  • 14
  • 32
4
votes
1 answer

Difference between fdt_addr and fdt_addr_r in uboot?

I have been working on implementing u-boot on a 64bit RPi4 for a few weeks. My last big mistake was that when booting the kernel in boot.cmd -> I was using the variable fdt_addr_r instead of fdt_addr. Does anyone know the difference between the…
Dams
  • 41
  • 2
4
votes
1 answer

U-boot Script Bad Header CRC

I have a "flashing" script being loaded into a Uboot, on an iMX6, from a host PC via sdp. The script has been run through mkimage, so it has an image header. Here's the mkimage command: mkimage -A arm -O linux -T script -C none -a 0 -e 0 -n…
BuvinJ
  • 10,221
  • 5
  • 83
  • 96
4
votes
1 answer

Can USB-OTG be used for U-Boot and Linux consoles?

I have a custom i.MX6Q-based board with working U-Boot and Linux (Ubuntu) setups. The micro and board have support for USB-OTG and one serial port; currently, the serial port serves the console for both U-Boot and Linux. However, we may need to use…
Bob
  • 587
  • 8
  • 17
1 2 3
…
69 70