eMachines G630 User Manual

Page 142

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132

Chapter 4

0x29

Perform JEDEC memory initialization for all memory rows

0x30

Perform steps required after memory init

0x31 Program

DRAM

throttling

and throttling event registers

0x32

Setup DRAM control register for normal operation and enable

0x33

Enable RCOMP

0x34

Clear DRAM initialization bit in the SB

0x35

Initialization Sequence Completed, program graphic clocks

0x43

Program Thermal Throttling

BDS & Specific action:

Code

Description

0x00

Report the legacy boot is happening

0x12

Wake up the Aps

0x13 Initialize

SMM

Private

Data and relocate BSP SMBASE

0x21

PC init begin at the stage1

0x27

Report every memory range do the hard ware ECC init

0x28

Report status code of every memory range

0x50

Get the root bridge handle

0x51

Notify pci bus driver starts to program the resource

0x58

Reset the host controller

0x5A

IdeBus begin initialization

0x79

Report that the remote terminal is being disabled

0x7A

Report that the remote terminal is being enabled

0x90 Keyboard

reset

0x91

USB Keyboard disable

0x92 Keyboard

detection

0x93

Report that the usb keyboard is being enabled

0x94

Clear the keyboard buffer

0x95 Init

Keyboard

0x98 Mouse

reset

0x99 Mouse

disable

0x9A

Detect PS2 mouse

0x9B

Report that the mouse is being enabled

0xB8

Peripheral removable media reset(ex:IsaFloppy, USB device)

0xB9

Peripheral removable media disable

0xBB

Peripheral removable media enable

0xE4

Report Status Code here for DXE_ENTRY_POINT once it is available

0xF8

Report that ExitBootServices() has been called

0xF9

Runtime driver set virtual address map

Memory:

DEBUG_BIOS equ 1 (Chipset\Alviso\MemoryInitAsm\IA32\IMEMORY.INC)

Code

Description

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