make menuconfig
---> Device Drivers
---> Graphics support
---> Console display driver support
---> Framebuffer Console Rotation
---> Boot options
启动参数修改为：console=ttymxc0,115200 fbcon=rotate:1
说明： fbcon=rotate:
This option changes the orientation angle of the console display.
The value 'n' accepts the following:
0 - normal orientation (0 degree)
1 - clockwise orientation (90 degrees)
2 - upside down orientation (180 degrees)
3 - counterclockwise orientation (270 degrees)
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