BootROM BCT
The BootROM BCT includes the following data types to select the primary boot chain:
Data Type |
Description |
---|---|
u32_non_gpio_select_boot_chain_field |
Indicates the primary boot chain when the GPIO selection is NOT enabled. 0 = Boot Chain A 1 = Boot Chain B 2 = Boot Chain C Valid values are 0 to (u32_num_boot_chains – 1) |
bf_bl_gpio_select_boot_chain_1b |
Toggles to enable or disable the GPIO selection of the boot chain.
SOC_GPIO31 controls lower bit for selection. SOC_GPIO41 controls upper bit for selection. Only used when u32_num_boot_chains > 2. |
u32_num_boot_chains |
Indicates the number of boot chains in the system. Valid values are 1 – 3. |
For guidance on connecting a GPIO to enable selection of the boot chain, refer to the Orin Interface Design Guide (DG-08535-001).