SPRUJ17H March 2022 – October 2024 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
Table 5-1 shows the boot modes supported by ROM code.
Boot Mode/Peripheral | Boot Media/Host | Notes |
---|---|---|
QSPI (4S) - Quad Read Mode | QSPI Flash | Download and boot SBL from QSPI flash in quad read mode. Attempt Primary SBL, followed by Secondary SBL if primary loading fails. |
UART | External Host | Download and boot SBL from UART interface via XMODEM protocol at 115200bps BaudRate. |
QSPI (1S) - Single Read Mode | QSPI Flash | Download and boot SBL from QSPI flash in single read mode. Attempt Primary SBL,followed by Secondary SBL if primary loading fails. |
QSPI (4S) - Quad Read UART Fallback Mode | QSPI Flash / External Host | Download and boot SBL from QSPI flash in quad read mode. Attempt Primary SBL, followed by Secondary SBL if primary loading fails. If Secondary SBL also fails then boot from external host via UART interface. |
QSPI (1S) - Single Read UART Fallback Mode | QSPI Flash / External Host | Download and boot SBL from QSPI flash in single read mode. Attempt Primary SBL, followed by Secondary SBL if primary loading fails. If Secondary SBL also fails then boot from external host via UART interface. |
DevBoot | N/A | This mode is used for SBL development and JTAG based KeyWriter provision. In this mode, R5 ROM is eclipsed , PLLs are not initialized, PBIST and memory initialization is not done for TCMA,TCMB and L2. |