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kumquat-buildroot/board/visionfive2
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Lukasz Tekieli 6dfeb165ee board/visionfive2: enable u-boot 
Enables U-Boot and required OpenSBI builds for the VisionFive2. Changes
the sdcard.img to use GPT and adds the SPL and U-Boot to partitions
specified in U-Boot's documentation for the board:

https://docs.u-boot.org/en/v2024.01/board/starfive/visionfive2.html

U-Boot config uses BR2_TARGET_UBOOT_FORMAT_CUSTOM_NAME with value
"u-boot.itb". Using BR2_TARGET_UBOOT_FORMAT_ITB fails, because the
build does not support u-boot.itb make target.

Signed-off-by: Lukasz Tekieli <tekieli.lukasz@gmail.com>
[Peter: document boot mode setting, add U-Boot documentation link]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2024-03-24 08:58:42 +01:00
..
overlay/boot/extlinux
genimage.cfg board/visionfive2: enable u-boot 2024-03-24 08:58:42 +01:00
readme.txt board/visionfive2: enable u-boot 2024-03-24 08:58:42 +01:00

readme.txt 

Starfive VisionFive2
====================

The VisionFive2 is a low-cost RISC-V 64-bit based platform, powered by a
Starfive JH7110 processor.

https://doc-en.rvspace.org/Doc_Center/visionfive_2.html

How to build
============

$ make visionfive2_defconfig
$ make

How to write the SD card
========================

Once the build process is finished you will have an image called "sdcard.img"
in the output/images/ directory.

Copy the bootable "sdcard.img" onto an SD card with "dd":

  $ sudo dd if=output/images/sdcard.img of=/dev/sdX

Preparing the board
===================

Connect a TTL UART cable to pin 6 (GND), 8 (TX) and 10 (RX).

Change the boot mode pins to SD card booting (RGPIO_0=1, GRPIO_1=0):

https://doc-en.rvspace.org/VisionFive2/Quick_Start_Guide/VisionFive2_SDK_QSG/boot_mode_settings.html

Insert your SD card.

Power-up the board using an USB-C cable.