Post Code Reference Tables

These tables describe the POST codes and descriptions during the POST.

Post Code Range

 

 

 

 

Phase

POST Code Range

 

 

 

SEC

0x01

- 0x0F

 

 

 

PEI

0x70

- 0x9F

 

 

 

DXE

0x40

- 0x6F

 

 

 

BDS

0x10

- 0x3F

 

 

SMM

0xA0 - 0xBF

 

 

S3

0xC0 - 0xCF

 

 

 

ASL

0x51

– 0x55

 

 

 

0xE1 – 0xE4

 

 

PostBDS

0xF9 – 0xFE

 

 

InsydeH2ODDT™

0xD0 – 0xD7

Reserve

 

 

 

 

OEM Reserve

0xE8 – 0xEB

 

 

Reserved

0xD8 – 0xE0

 

 

 

0xE5 – 0xE7

 

 

 

0xEC – 0xF8

 

 

 

SEC Phase POST Code Table

Functionality Name (Include\

Phase

Post

Description

PostCode.h)

Code

 

 

 

 

 

 

SEC_SYSTEM_POWER_ON

SEC

1

CPU power on and switch to

 

 

 

Protected mode

 

 

 

 

SEC_BEFORE_MICROCODE_PATCH

SEC

2

Patching CPU microcode

 

 

 

 

SEC_AFTER_MICROCODE_PATCH

SEC

3

Setup Cache as RAM

 

 

 

 

SEC_ACCESS_CSR

SEC

4

PCIE MMIO Base Address initial

 

 

 

 

SEC_GENERIC_MSRINIT

SEC

5

CPU Generic MSR initialization

 

 

 

 

SEC_CPU_SPEEDCFG

SEC

6

Setup CPU speed

 

 

 

 

SEC_SETUP_CAR_OK

SEC

7

Cache as RAM test

 

 

 

 

SEC_FORCE_MAX_RATIO

SEC

8

Tune CPU frequency ratio to

 

 

 

maximum level

 

 

 

 

SEC_GO_TO_SECSTARTUP

SEC

9

Setup BIOS ROM cache

 

 

 

 

SEC_GO_TO_PEICORE

SEC

0A

Enter Boot Firmware Volume

 

 

 

 

NOTE: The color bar items indicate 3rd party related functions that are platorm dependent.

PEI Phase POST Code Table:

Functionality Name (Include\

Phase

Post

Description

PostCode.h)

Code

 

 

 

 

 

 

PEI_SIO_INIT

PEI

70

Super I/O Initialization

 

 

 

 

PEI_CPU_REG_INIT

PEI

71

CPU Early Initialization

 

 

 

 

PEI_PCIE_MMIO_INIT

PEI

74

PCIE MMIO BAR Initialization

 

 

 

 

PEI_NB_REG_INIT

PEI

75

North Bridge Early Initialization

 

 

 

 

PEI_SB_REG_INIT

PEI

76

South Bridge Early Initialization

 

 

 

 

Chapter 4

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Image 167
Aspire Digital 5820T manual Post Code Reference Tables, Post Code Range Phase