Add initial support for the Orange Pi 5 Pro

[Joshua-Riek]

Description

Add basic support for the new Orange Pi 5 Pro.

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Please also note any relevant details for your test configuration.

• [x] Compile U-Boot and Legacy 5.10 kernel
• [x] System boots as expected
• [ ] WiFi and Bluetooth work

Checklist:

Please delete options that are not relevant.

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] My changes generate no new warnings

[Joshua-Riek]

This PR depends on https://github.com/armbian/linux-rockchip/pull/172.

[Joshua-Riek]

There is still a problem with the Orange Pi 5 Pro where a kernel panic can occur on boot. I suspect ram instability, may need to update DDR and SPL blobs.

https://pastebin.com/PUsVAX56

[igorpecovnik]

Indeed https://github.com/orangepi-xunlong/orangepi-build/commit/36c57dd881d2028ba54334b4db7e772f3f59d02a

[Joshua-Riek]

Good find, let me test with the updated blobs.

[Joshua-Riek]

I updated the DDR and SPL blobs, booting perfectly now!

[Joshua-Riek]

Quick note - Bluetooth and the USB 3.0 port are not yet working, so the board is marked as wip.