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board: seco: dynamic board configuration for peripheral/video device support

Ghost User requested to merge seco/develop/imx_5.4.70_2.3.0_c61_auto_config into seco/develop/imx_5.4.70_2.3.0-develop

In order to set board configuration there are 2 ways:

  • dynamic configuration -> Board get peripheral/video configuration from strap
  • static configuration -> Board get peripheral/video configutation from seco_config command

This patch first implement dynamic configuration. Uboot check board strap configuration and populate new two variables:

  • fdt_overlay_per_dynamic_cmd
  • fdt_overlay_video_dynamic_cmd

These variables contains the list of dtbo's selected from board strap. On the other side seco_config cmd populate the following variables that contains the list of dtbo's selected by seco_config:

  • fdt_overlay_per_cmd
  • fdt_overlay_video_cmd

Before boot we check if we use seco_config selection (static) or board strap selection (dynamic), for both video and peripheral devices, checking the following variables (if seco_config cmd is used per_use_seco_config/video_use_seco_config are set to 1):

  • per_use_seco_config (default 0) | 0 -> use board strap cfg (dynamic) | 1 -> use seco_config sel (static) | peripheral
  • video_use_seco_config (default 0) | 0 -> use board strap cfg (dynamic) | 1 -> use seco_config sel (static) | video

seco_config fdtoverlay cmd is used against choosen static/dynamic list before boot to create _cmd list.

  • fdt_overlay_video_dynamic_list
  • fdt_overlay_per_dynamic_list

Note:

Command:

  • seco_config fdtoverlay

Create uboot env variable in witch there is a series of commands to run a list of dtbo against dtb file. The list is given by dynamic or static configuration.

Edited by Ghost User

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