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AT8901
A list of defined postcodes is shown in the table below.
Table 4-2:
POST Boot Steps
POST Step Code
PC_INIT
PC_BINIT
PC_CLOCKS
PC_TIMEB
PC_ENVINIT
PC_BAUD
PC_SERIAL
PC_CPU
PC_PHY
PC_I2C
PC_INITRAM
PC_TESTRAM
PC_INITSEQ
PC_INITBOARD
PC_RELOC
PC_TRAP
PC_FLASH
PC_CPU2
PC_RELOCENV
PC_BDINFO
PC_PCI
PC_DEVICES
PC_JUMPTABLE
PC_CONSOLE
PC_MAIN
PC_START_OS
Value
0x00
Initial PC, EBC has been set up
0x01
Board early init (interrupt settings)
0x02
Get system clocks
0x03
Init timebase
0x04
Init environment
0x05
Init baudrate
0x06
Init UART
0x07
Check CPU
0x08
Setup PHY
0x09
Init I2C
0x0A
Init SDRAM controller and SDRAM
0x0B
Test SDRAM
0x0F
Board init sequence completed
0x10
Board init ok, stack set up ok, board info struct set up
0x11
Relocation completed
0x18
Setup trap handler
0x19
Flash OK
0x1A
Init higher level parts of CPU
0x1B
Relocation of environment Ok
0x1C
Fill missing fields of bdinfo
0x1D
PCI configuration done
0x1E
Device init done
0x1F
Jumptable init done
0x20
Console init done
0x2F
Enter main loop
0x3F
Pass control to OS, leave bootloader
Page 4 - 9
Software Description
Boot Step
AT8901 User Guide
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