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====== Burning gPXE into Broadcom BCM57xx-based cards ======

<referback>This page is part of the [[:romburning|ROM-burning]] tutorial.</referback>

The Broadcom Diagnostic Utility set allows you to update the expansion ROM images in Broadcom BCM57xx gigabit network cards (and rebranded Broadcom cards such as the HP NC7771).

===== Preparing the ROM image =====

Copy the gPXE ROM image (e.g. //bin/pci_0e11_00ca.rom//) to a FAT-formatted floppy disk or USB drive.

===== Preparing the tools =====

Download the Broadcom Diagnostics Utility from [[http://www.broadcom.com/docs/driver_download/570x/B57udiag-10.53.iso]].  Burn this image to CD using your favourite CD burning method.

===== Burning the gPXE ROM =====

Boot from the CD and select the following sequence of options:

  - "Continue to boot FreeDOS from CD-ROM"
  - "Install to harddisk using FreeDOS setup" (which won't actually install anything to your hard disk)
  - The language of your choice
  - "Run FreeDOS from CD-ROM (return to command prompt)"

You should now see an //X:\>// prompt.  Type

    cd b57udiag
    b57udiag -ver

You should see something like

    X:\>cd b57udiag
    X:\B57UDIAG>b57udiag -ver
    ****************************************************
    Copyright(c) 2000-2007 Broadcom Corporation
    Broadcom NetXtreme User Diagnostics 10.53 (07/27/07)
    ****************************************************
    C  Brd:Rv   Bus      PCI  Spd  Base  Irq  EEP   MAC           Fmw         Configuration
    ---------------------------------------------------------------------------------------
    0  5703:B0  05:04:0  32   33   FC50  11   128K  012345567810  5703-v.235  WMp,auto

This shows the list of Broadcom cards in the machine.  We in this case have only the one card.
We want to check the current payload in the card, so we need to run the following    

<file>
    X:\B57UDIAG\>b57diag.exe -c 0 -dir
    ****************
    Copyright notice
    ***************
    C	Brd:Rv	Bus		PCI	Spd	Base	Irq		EEP		MAC		Fmw		Configuration
    ----------------------------------------------------------------------------------------------------------------------
    0	5703:B0	05:04:0		32	33	FC50	11		128K		012345567810	5703-v.235	WMp,auto
    
    0	5703:B0	05:04:0		32	33	FC50	11		128K		012345567810	5703-v.235	WMp,auto
    Entry	Type		SRAM Addr	EEP Offset		Length		Execute		Version
    	Bootcode	08003000	00000200		00001860	CPUE(2)		5703-v2.35
    0	PXE		00010000	00001A60		0000EA04	no		v73.67.80
</file>
This lists the current NRAM filesystem on the card. Please note the PXE rom on this card is already a gPXE rom, however the same process holds true for replacing the rom

In order to burn the rom we need to run the following

<file>
    A:\>b57diag.exe -c 0 -pxe c:\tg3-hp.rom
    ****************
    Copyright notice
    ***************
    C	Brd:Rv	Bus		PCI	Spd	Base	Irq		EEP		MAC		Fmw		Configuration
    ----------------------------------------------------------------------------------------------------------------------
    0	5703:B0	05:04:0		32	33	FC50	11		128K		012345567810	5703-v.235	WMp,auto
    
    0	5703:B0	05:04:0		32	33	FC50	11		128K		012345567810	5703-v.235	WMp,auto
    Updating PCI Rom Header with Vendor ID = 0x14e4 Device ID = 0x16c7
    Updating PXE-UNDI16 code (length = 59908 bytes ) ...
    Programing 59908 bytes to NVRAM offset 00001A60
    <counter that ends at 59908 for my rom>
    Updating Directory
    code len		= 0000ea04
    sram_start_address	= 00010000
    code_start_address	= 00001a60
    Reading current NVRAM ... OK
    Programing... 512
    
    Totally 1 card(s) has been programmed
</file>

Reboot the machine and enter the BIOS setup.  You should see gPXE show up as an option in your BIOS's boot selection menu.

Congratulations on successfully burning gPXE into your network card!
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