SPRABA5D January   2014  – January 2019 AM1802 , AM1802 , AM1806 , AM1806 , AM1808 , AM1808 , AM1810 , AM1810

 

  1.   Using the AM18xx Bootloader
    1.     Trademarks
    2. 1  Introduction
    3. 2  Boot Modes
    4. 3  Non-AIS Boot Modes
      1. 3.1 NOR Boot
        1. 3.1.1 Legacy NOR Boot
        2. 3.1.2 Direct NOR Boot
        3. 3.1.3 AIS NOR Boot
      2. 3.2 Host Port Interface (HPI) Boot
      3. 3.3 Emulation Debug Boot
    5. 4  Application Image Script (AIS) Boot
      1. 4.1  Section Load Command (0x58535901)
      2. 4.2  Section Fill Command (0x5853590A)
      3. 4.3  Enable CRC Command (0x58535903)
      4. 4.4  Disable CRC Command (0x58535904)
      5. 4.5  Validate CRC Command (0x58535902)
      6. 4.6  Jump & Close Command (0x58535906)
      7. 4.7  Jump Command (0x58535905)
      8. 4.8  Sequential Read Enable Command (0x58535963)
      9. 4.9  Function Execute Command (0x5853590D)
      10. 4.10 Boot Table Command (0x58535907)
    6. 5  AISgen: Tool to Generate Boot Script (AIS Image)
      1. 5.1 Installation
      2. 5.2 Getting Started
      3. 5.3 Generating AIS
        1. 5.3.1  Boot Mode and Boot Peripheral Setup
        2. 5.3.2  Phase-Locked Loop (PLL) Setup
        3. 5.3.3  Synchronous Dynamic Random Access Memory (SDRAM) Setup
        4. 5.3.4  DDR Setup
        5. 5.3.5  PSC Setup
        6. 5.3.6  Pin Multiplexing Setup
        7. 5.3.7  Application File Selection
        8. 5.3.8  AIS File Selection
        9. 5.3.9  Status and Messages
        10. 5.3.10 Additional AIS Options
          1. 5.3.10.1 CRC
          2. 5.3.10.2 Specifying the Application Entrypoint
        11. 5.3.11 Command Line Usage
    7. 6  Master Boot – Booting From a Slave Memory Device
      1. 6.1 I2C EEPROM Boot
      2. 6.2 SPI EEPROM or Flash Boot
      3. 6.3 NOR Flash Boot
      4. 6.4 NAND Flash Boot
      5. 6.5 MMC/SD Boot
    8. 7  Slave Boot – Booting From an External Master Host
      1. 7.1 About the AIS Interpreter on the Host
      2. 7.2 Start-Word Synchronization (SWS)
      3. 7.3 Ping Op-Code Synchronization (POS)
      4. 7.4 Opcode Synchronization (OS)
    9. 8  UART Boot Host - Using Your PC as a UART Boot Master
      1. 8.1 Getting Started
      2. 8.2 Booting the Device
      3. 8.3 The AIS_Util.cs Source Code
    10. 9  Boot Requirements, Constraints and Default Settings
      1. 9.1 General Comments
      2. 9.2 UART-Boot Modes
      3. 9.3 I2C-Boot Modes
      4. 9.4 SPI-Boot Modes
      5. 9.5 NOR-Boot Modes
      6. 9.6 NAND-Boot Modes
      7. 9.7 MMC/SD-Boot Modes
      8. 9.8 HPI-Boot Modes
    11. 10 References
  2.   A Boot Mode Selection Table
    1.     A.1 Boot Mode Selection Table
  3.   B Details of Supported NAND Devices
    1.     B.1 Details of Supported NAND Devices
  4.   C CRC Computation Algorithm
    1.     C.1 CRC Computation Algorithm
  5.   D Details of Pre-Defined ROM Functions
    1.     D.1 PLL0 Configuration (Index = 0, Argument Count = 2)
    2.     D.2 PLL1 Configuration (Index = 1, Argument Count = 2)
    3.     D.3 Clock Configuration (Index = 2, Argument Count = 1)
      1.      D.3.1 SPI Master Register
      2.      D.3.2 I2C Master Register
      3.      D.3.3 UART Slave Register
      4.      D.3.4 MMC/SD Register
    4.     D.4 mDDR/DDR2 Controller Configuration (Index = 3, Argument Count = 8)
    5.     D.5 EMIFA SDRAM Configuration (Index = 4, Argument Count = 5)
    6.     D.6 EMIFA Async Configuration (Index = 5, Argument Count = 5)
    7.     D.7 PLL and Clock Configuration (Index = 6, Argument Count = 3)
    8.     D.8 Power and Sleep Configuration (PSC) (Index = 7, Argument Count = 1)
    9.     D.9 Pinmux Configuration (Index = 8, Argument Count = 3)
  6.   E ROM Revision History
    1.     E.1 ROMID: D800K002, Silicon Revision 1.0
    2.     E.2 ROMID: D800K004, Silicon Revision 1.1
    3.     E.3 ROMID: D800K006, Silicon Revision 2.0
    4.     E.4 ROMID: D800K008, Silicon Revision 2.1
  7.   Revision History

A.1 Boot Mode Selection Table

Table 11 lists various boot modes supported by the bootloader and a configuration of boot pins required to select a boot mode. The boot pins are latched by the bootloader when the device exits reset (on the rising edge of reset).

Table 11. Boot Mode Selection

BOOT[7:0] (1) Boot Mode AIS
0000 0010 NOR Yes (2)
0xx0 1110 (5) NAND 8 Yes
0xx1 0000 (5)(4) NAND 16 Yes
00x1 1100 (7)(6) MMC/SD0 Yes
0000 0000 I2C0 EEPROM Yes
0000 0110 I2C1 EEPROM Yes
0000 0001 I2C0 Slave Yes
0000 0111 I2C1 Slave Yes
0000 1000 SPI0 EEPROM Yes
0000 1001 SPI1 EEPROM Yes
0000 1010 SPI0 Flash Yes
0000 1100 SPI1 Flash Yes
0001 0010 SPI0 Slave Yes
0001 0011 SPI1 Slave Yes
xxx1 0110(3) UART0 Yes
xxx1 0111(3) UART1 Yes
xxx1 0100(3) UART2 Yes
0000 0100 HPI No
0001 1110 Emulation Debug No
(1) The boot pins, BOOT[7:0], are multiplexed with the following signals: VPIF_DOUT[15:8], LCD_DATA[15:8], UPP_XDATA[7:0], and GPIO_7[7:0].
(2) There are three methods to boot from NOR flash; only one of them uses AIS.
(3) In UART boot mode, BOOT[7:5] configure the UART peripheral to run at standard baud rates for different input clocks. For BOOT[7:5] = 000, the UART peripheral runs at 115.2 kbps with a 24 MHz input clock. For more information, see Section 9.
(4) NAND 16 boot mode is not supported for ROM revision d800k002. To check your ROM revision, follow the instructions in Section 1.
(5) In NAND boot mode, BOOT[6:5] apply additional configuration at the start of the boot process. For BOOT[6:5] = 00, NAND boot begins in block 1 and does not apply any initial PLL configuration before the first block read. For more information, see Section 9.
(6) MMC/SD boot mode is only supported by ROM revision d800k008. To check your ROM revision, follow the instructions in Section 1.
(7) In MMC/SD boot mode, BOOT[5] determines which type of memory card is used: MMC or SD. For more information, see Section 9.
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