Boot sequence (Maya)

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Maya 03.png Applies to Maya

Default boot sequence

DM814x provides several boot sequences selectable via BTMODE[4:0] bootstrap pins.

For a detailed explanation of DM814x/AM387x see chapter ROM Code Memory and Peripheral Booting of DM8148 Technical Reference Manual.

By default, Naon provides the following configuration:

  • BTMODE[15]: 0
  • BTMODE[14:13]: 10
  • BTMODE[12]: 1
  • BTMODE[11]: 0
  • BTMODE[10]: 0
  • BTMODE[9:8]: 01
  • BTMODE[7:5]: 000
  • BTMODE[4:0]: 10010.

Thus default boot sequence is:

  1. NAND
  2. NANDI2C
  3. SPI
  4. UART.