I am trying to build the Open Industrial Linux Image and I am facing some problems when I try to run the builded image in the TQMLS1028A I try to build the image with an Linux Mint 19.3 with the kernel 5.0.21-rt16 and with an Ubuntu 16.04.7 LTS with the kernel 4.15.0-112 generic. When I make the Image with bo…
Tag: u-boot
modifying u-boot environment in kernel init
I’m trying to modify a u-boot env arg within the kernel code. I’ve found boot_command_line var in main.c and setup.c, which contains an arg, so that made me think it is possible, however, I coudn’t find where this var is being updated with the u-boot env arg value, or how to get a different …
How to print memory variable in U-boot?
i have the following lines in my U-boot environment: The comparison works. But how can i echo the contents of the memory address 10e00000? I tried to print in the failure handler: but when i print the environment i can see that it has replaced the variable with the memory address: How can i print the contents…
How u-boot start instruction is found by ROM Code
I am trying to understand ARM Linux Boot Process. These are the things I understood: When reset button is pressed in any processor, it jumps to the reset vector or address, in case of ARM it is either 0x00 or 0xFFFF0000. This location contains the start up code or ROM Code or Boot ROM Code My query is how thi…
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 image. How to configure U-boot in this case? core-0 should l…
How can I build a Linux distro? [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 6 years ago. Improve this question Disclaimer: This is my first time delving into the embedded Linux world (U…
How to disable serial console(non-kernel) in u-boot
I am building a Yocto image for Intel Edison. One of the image’s components is u-boot with an Edison-specific patch. By default, Edison’s UART port is used for u-boot console. I want to disable this feature, but only on the serial interface(u-boot also listens on USB and that needs to stay). My ma…