Loading without ATF and OP-TEE; primary loader

Chip Platform Rockchip
1

Hello, I have 2 questions:

  1. How to boot using SPL without ATF and Optee? When booting using the u-boot.img (u-boot + fdt) file, the boot is interrupted at the moment when the image_enty function is executed at 0xA00000.
  2. How do I get a primary boot loader (boot rom) that runs ddr?
2

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