SPRUIV7B May 2022 – September 2023 AM620-Q1 , AM623 , AM625 , AM625-Q1 , AM625SIP
In this mode, the ROM Code configures the GPMC interface based on the configuration parameters specified in the boot parameter table for the GPMC NOR boot mode Section 5.6.11, seeGPMC NOR Boot Parameter Table.
Timing registers are programmed as follows for NOR flash boot:
GPMC register | Value |
---|---|
GPMC_CONFIG1 | 0x00001010 |
GPMC_CONFIG2 | 0x00101c01 |
GPMC_CONFIG3 | 0x23060917 |
GPMC_CONFIG4 | 0x1005bc1a |
GPMC_CONFIG5 | 0x011b111e |
GPMC_CONFIG6 | 0x8f070000 |
GPMC_CONFIG7 | 0x00000c50 |
GPMC NOR boot mode is not executable-in-place (XIP). ROM code first copies boot image into on-chip RAM and then executes it. Only non-muxed memory is supported. If the initial image at offset 0x0 is not recognized, the ROM will attempt to read a redundant image from offset 0x100000. This is the only redundant image supported by the ROM.