SPRABA5D January 2014 – January 2019 AM1802 , AM1802 , AM1806 , AM1806 , AM1808 , AM1808 , AM1810 , AM1810
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Using the AM18xx Bootloader
- Trademarks
- 1 Introduction
- 2 Boot Modes
- 3 Non-AIS Boot Modes
- 4
Application Image Script (AIS) Boot
- 4.1 Section Load Command (0x58535901)
- 4.2 Section Fill Command (0x5853590A)
- 4.3 Enable CRC Command (0x58535903)
- 4.4 Disable CRC Command (0x58535904)
- 4.5 Validate CRC Command (0x58535902)
- 4.6 Jump & Close Command (0x58535906)
- 4.7 Jump Command (0x58535905)
- 4.8 Sequential Read Enable Command (0x58535963)
- 4.9 Function Execute Command (0x5853590D)
- 4.10 Boot Table Command (0x58535907)
- 5
AISgen: Tool to Generate Boot Script (AIS Image)
- 5.1 Installation
- 5.2 Getting Started
- 5.3
Generating AIS
- 5.3.1 Boot Mode and Boot Peripheral Setup
- 5.3.2 Phase-Locked Loop (PLL) Setup
- 5.3.3 Synchronous Dynamic Random Access Memory (SDRAM) Setup
- 5.3.4 DDR Setup
- 5.3.5 PSC Setup
- 5.3.6 Pin Multiplexing Setup
- 5.3.7 Application File Selection
- 5.3.8 AIS File Selection
- 5.3.9 Status and Messages
- 5.3.10 Additional AIS Options
- 5.3.11 Command Line Usage
- 6 Master Boot – Booting From a Slave Memory Device
- 7 Slave Boot – Booting From an External Master Host
- 8 UART Boot Host - Using Your PC as a UART Boot Master
- 9 Boot Requirements, Constraints and Default Settings
- 10 References
- A Boot Mode Selection Table
- B Details of Supported NAND Devices
- C CRC Computation Algorithm
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D Details of Pre-Defined ROM Functions
- D.1 PLL0 Configuration (Index = 0, Argument Count = 2)
- D.2 PLL1 Configuration (Index = 1, Argument Count = 2)
- D.3 Clock Configuration (Index = 2, Argument Count = 1)
- D.4 mDDR/DDR2 Controller Configuration (Index = 3, Argument Count = 8)
- D.5 EMIFA SDRAM Configuration (Index = 4, Argument Count = 5)
- D.6 EMIFA Async Configuration (Index = 5, Argument Count = 5)
- D.7 PLL and Clock Configuration (Index = 6, Argument Count = 3)
- D.8 Power and Sleep Configuration (PSC) (Index = 7, Argument Count = 1)
- D.9 Pinmux Configuration (Index = 8, Argument Count = 3)
- E ROM Revision History
- Revision History
4.9 Function Execute Command (0x5853590D)
The Function Execute command is a generic interface for device-specific initialization functions such as phase-locked loop (PLL) and external memory interface (EMIF) configuration. A set of pre-defined functions are part of the ROM and a function table is maintained by the bootloader with pointers to each of them. The Function Execute command can be used to execute any of them. Details of pre-defined ROM functions that can be called using this command are given in Section D.
Figure 17. Function Execute Command The number of arguments in this command is variable. The first argument specifies the function ID (index of function in the function table) in the lower 16 bits and the number of arguments that the function takes in the upper 16 bits. The number of arguments following the first argument matches the number specified in its upper 16 bits.