SPRACN3 September   2019 66AK2E05 , 66AK2H06 , 66AK2H12 , 66AK2H14 , 66AK2L06 , AM5K2E02 , AM5K2E04

 

  1.   Using ARM ROM Bootloader on Keystone II Devices
    1.     Trademarks
    2. 1  Keystone2 Boot loader Overview
    3. 2  Boot Examples Package Download
    4. 3  Software Dependencies
    5. 4  Supported Hardware
    6. 5  Software Features
    7. 6  Directory Structure
    8. 7  Building the Examples
    9. 8  Description of the Examples
      1. 8.1 Single Stage Boot Examples
      2. 8.2 Multi-Stage Boot Example
      3. 8.3 Boot Media-Specific Details
        1. 8.3.1 SPI Boot Example
        2. 8.3.2 I2C Boot Examples
        3. 8.3.3 NAND Examples
        4. 8.3.4 UART Boot Examples
        5. 8.3.5 Ethernet boot examples
        6. 8.3.6 K2E Ethernet Boot Errata Workaround
      4. 8.4 Flashing and Running Boot Examples
        1. 8.4.1 Dip Switch Settings
        2. 8.4.2 Running I2C EEPROM example
        3. 8.4.3 Running SPI NOR Example
        4. 8.4.4 Running NAND Example
        5. 8.4.5 Running UART Example
        6. 8.4.6 Running Ethernet Examples
    10. 9  Boot Utilities
    11. 10 Frequently Asked Questions (FAQ)
    12. 11 References

8.3.1 SPI Boot Example

SPI boot is a general-purpose boot mode in which the Boot ROM configures the PLL in bypass mode. The Boot ROM loads the image from the base of the SPI NOR flash. In the multi-stage boot example, the first stage loads the boot parameter table that forces the Boot ROM to configure the PLL and load the seconds stage at 100 Khz. The second stage is loaded at an offset of 0x1000 in the SPI NOR Flash.