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kumquat-buildroot/board/stmicroelectronics/stm32f469-disco
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Dario Binacchi b235a2cffc boot/afboot-stm32: upgrade version 
Newer versions of the kernel generate device trees that are not
storable in a single 16kB sector. In these cases the kernel load address
must be changed.
The commit 2e499dcff3ef ("Add possibility to use custom kernel load address")
adds the possibility to override the default (0x08008000) kernel load
address.

This also required changes to the stm32f429_disco_defconfig and
stm32f469_disco_xip_defconfig configurations. Patching is no longer
needed.

Also update whitespaces in hash file (2 spaces).

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Acked-by: Christophe Priouzeau <christophe.priouzeau@foss.st.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2021-12-17 22:58:11 +01:00
..
extlinux.conf configs/stm32f469_disco: fix kernel bootup 2021-06-16 23:09:34 +02:00
flash_xip.sh configs/stm32f469_xip_disco: fix kernel bootup 2021-12-17 22:58:11 +01:00
flash.sh configs/stm32f469_disco: fix kernel bootup 2021-06-16 23:09:34 +02:00
genimage.cfg board/stmicroelectronics/stm32f469-disco/genimage.cfg: beautify file 2021-11-08 22:59:34 +01:00
linux-xip.config configs/stm32f469_xip_disco: fix kernel bootup 2021-12-17 22:58:11 +01:00
linux.fragment configs/stm32f469_disco: enable Linux DRM support 2021-10-26 21:34:03 +02:00
post-build.sh configs/stm32f469_disco: fix kernel bootup 2021-06-16 23:09:34 +02:00
readme_xip.txt configs/stm32f469_disco_xip_defconfig: alternative defconfig for XIP 2021-08-28 16:58:21 +02:00
readme.txt configs/stm32f469_disco: enable Linux DRM support 2021-10-26 21:34:03 +02:00

readme.txt 

STM32F469 Discovery
===================

This tutorial describes how to use the predefined Buildroot
configuration for the STM32F469 Discovery evaluation platform.

Building
--------

  make stm32f469_disco_defconfig
  make

Flashing
--------

  ./board/stmicroelectronics/stm32f469-disco/flash.sh output/

It will flash the U-boot bootloader.

Creating SD card
----------------

Buildroot prepares an"sdcard.img" image in the output/images/ directory,
ready to be dumped on a SD card. Launch the following command as root:

  dd if=output/images/sdcard.img of=/dev/<your-sd-device>

*** WARNING! This will destroy all the card content. Use with care! ***

For details about the medium image layout and its content, see the
definition in board/stmicroelectronics/stm32f469-disco/genimage.cfg.

Framebuffer
-----------
After Linux boots, /dev/fb0 will be accessible. You can control the
brightness of the display after enabling the framebuffer by running the
following commands:

   # echo 0 0 > /sys/class/graphics/fb0/pan
   # echo 255 >/sys/class/backlight/40016c00.dsi.0/brightness

The brightness ranges from 0 to 255, as you can see running the
command:

   # cat /sys/class/backlight/40016c00.dsi.0/max_brightness