P1010rdb新单板u-boot移植过程总结

The device defines the default boot ROM address range to be 8 Mbytes at address 0x0_FF80_0000 to 0x0_FFFF_FFFF.

（3）Boot from NOR flash

For NOR boot, CS0 works as boot chip-select. Therefore, during NOR boot, the external device should be connected on CS0. Before fetching the first instruction from an external device (NOR flash), the IFC Flash timing registers are loaded with default timing parameters.

（4）p1010的启动过程总结

1）、 CPU地址空间