BSP: L5.4.70-2.3.0, uboot version is 2020.04
Dispplay: mipi to RGB by LT9211, referent driver has been modified and initialized.
Screen resolution: 1024*600，referent configuration has been checked OK.
In uboot stage, the screen displays as below.
From uboot to kernel, kernel will read the same frame buffer transmitted from uboot, the display is OK.
What is the reason for it, and how to fix ?