AM625: AM625 GPMC 8-bit and 16-bit Usage Issues

1. Our usage scenario: We have multiple boards that need to use GPMC, divided into 8-bit data bus and 16-bit data bus configurations.
2. Hardware connection methods:
   • 8-bit configuration: Implemented via GPMC0_A0~A16 and GPMC0_AD0~AD7.
   • 16-bit configuration: Implemented via GPMC0_AD0~AD15.

Question: Are there any relevant cases? We need hardware design references, software usage examples, and key considerations.