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1. #U BOOT CONFIGURATION STEPS HOW TO#
2. #U BOOT CONFIGURATION STEPS SERIAL#
3. #U BOOT CONFIGURATION STEPS SOFTWARE#
4. #U BOOT CONFIGURATION STEPS DOWNLOAD#

#U BOOT CONFIGURATION STEPS SOFTWARE#

In embedded systems the bootloader is a special piece of software whose main purpose is to load the kernel and hand over the control to it. Everyone likes their devices to boot up fast. So much research and decision making time is spent on this to make sure that the devices which are initialized are absolutely needed. The reason I said there are so many ways to answer this question, is because the use case of each device is different, and we need to choose the bootloader carefully, which initializes the device.

After all, everything has a beginning right? The hardware device can be anything, from your mobile phones, routers, microwave ovens, smart tv, and to the world’s fastest supercomputer. In short this is the piece of software which is executed as soon as you turn on your hardware device. There are so many answers to this question, but if you look at the core of all the answers it would contain some kind of initialization.

#U BOOT CONFIGURATION STEPS SERIAL#

For this blog series we are using beaglebone black development which is based on ARMv7 architecture.ģ.USB to Serial adaptor. Linux machine running any flavour of ubuntu, fedora or arch linux.Ī.This is very important as the build process and the cross compiler we choose depends on the type of processor.

#U BOOT CONFIGURATION STEPS HOW TO#

In short, this blog series explains how to setup an embedded linux machine that suits your needs Development environment prerequisites This will be done for ARM processor based development platform. Pynq_uboot_defconfig.txt arty_uboot_config_dot_h.This is a three part series of blogs which explains the complete procedure to cross compile config file have for this uart? The mdm module? where can I find this address in my vivado/sdk project to verify the config file is correct? Where do I find the base address for my debug uart? I'm using the uart in the jtag program usb link, but what base address should the. config file, where can I find an explanation of what all the definitions mean?Ħ. What other files does "make pynq_z1_defconfig" operation pull in? Where do things like base memory addresses in the ".config" come from?Ĥ. Why is CONFIG_SYS_TEXT_BASE always blank in. Does this Pynq config file look correct?Ģ. I can compile uboot for the zed board without any issues.ġ. Unfortunately I can't get a good uboot image for the pynq board. The fsbl runs fine and waits for a uboot download. My plan was to take each part one step at a time and use the jtag link to program (using xsct) and verify they are working.

#U BOOT CONFIGURATION STEPS DOWNLOAD#

All I want to do is build u-boot and download it to the SoC via jtag. This file never has a value for CONFIG_SYS_TEXT_BASE. I've noticed that when I do "make pynq_z1_defconfig" i get a. I'm taking a step back and trying to figure out now if these configuration files are even correct. I've also attached a screenshot of that error message during compiling. I can get the uboot build kicked off with these and it goes for a little while then errors out. I have gotten that from the Digilent repo and added that file to "include/configs/zynq_arty7.h". When I tried to compile uboot with just this config file the compiler said it needed the zynq_arty7.h file. In the uboot root directory I've placed the config (pynq uboot config file above) file in configs/my_uboot_config. So my next step is to build and download uboot. I see messages from the fsbl and it waits in its handoff looop. I've tested this with xsct for downloading to SoC and testing with a terminal. I've also used the sdk to build the fsbl which works fine. I have a fully functional viavdo gui project etc. I can make the entire project for pynq from master with no problem. The latest on master doesn't have the above u-boot config so this is the only file I got from a non-master branch. I have a Z1 board from Digilent and downloaded the latest master repo in it's entirety. I also got the uboot-config file from the PYNQ repo here: I've downloaded the source following the xilinx "fetch sources" wiki. I'm trying to understand how to build u-boot from source.