Broadcom Corporation
                          16215 Alton Parkway,
                          Irvine, CA 92619-7013
			  
          Rebuilding the RedHat 7.0 Enterprise Kernel Source Tree
                       Broadcom BCM5700 Linux Driver
                               05/30/2001

			       
Introduction
============

This file describes how to rebuild the RedHat 7.0 Enterprise
source tree for the purpose of building the bcm5700 driver module
with the RedHat 7.0 2.2.16-22enterprise kernel.


Pre-requisites
==============

RedHat Kernel Source: kernel-source-2.2.16-22.i386.rpm
Kernel Source Patches: kernel-2.2.16-22.src.rpm
KGCC: kgcc-1.1.2-40.i386.rpm


Verify Pre-requisites
=====================

rpm -q kernel-source
rpm -q kernel-2.2.16-22.src
rpm -q kgcc

If the kernel-source-2.2.16-22.i386.rpm or kgcc-1.1.2-40.i386.rpm
files are not installed, you may obtain the files from your RedHat 7.0
Binary CD-ROM or from:
ftp://ftp.redhat.com/redhat/linux/7.0/en/os/i386/RedHat/RPMS/

If the kernel-2.2.16.22.src.rpm package is not installed, you may
obtain the file from your RedHat Source CD-ROM or from:
ftp://ftp.redhat.com/redhat/linux/7.0/en/os/i386/SRPMS/


Install Pre-requisites if needed
================================

Skip this process and go to "Copy the Patch Files" if
you were able to successfully query for these packages using rpm -q

rpm -ivh kernel-source-2.2.16-22.i386.rpm
rpm -ivh kernel-2.2.16-22.src.rpm
rpm -ivh kgcc-1.1.2-40.i386.rpm

Note: You may need to manually create the /usr/src/redhat/ directory
if the installation of kernel-2.2.16-22.src.rpm should fail.


Copy the Patch Files and Patch Kernel
=====================================

Make sure that you have a symlink for your Kernel source directory to
/usr/src/linux before your proceed.

Example: /usr/src/linux --> /usr/src/linux-2.2.16

Change directory to /usr/src and copy the below patch files into the
working directory.  Note that in the example, there is one space and
one "dot" following the word patch.

cd /usr/src/
cp redhat/SOURCES/linux-2.2.16-lfs.patch .
cp redhat/SOURCES/linux-2.2.16-lfs-bigmem.patch .
patch -p0 -f < linux-2.2.16-lfs.patch
patch -p0 -f < linux-2.2.16-lfs-bigmem.patch

Note: You must have kernel-2.2.16-22.src.rpm installed to complete this
step.


Rebuild the source tree
=======================

Change directory to /usr/src/linux and run "make mrproper" to clean up
your source.

make mrproper

Copy the old RedHat Enterprise configuration file to the working
directory while renaming it to .config

cp configs/kernel-2.2.16-i686-enterprise.config .config

Run "make oldconfig" to configure the Enterprise Kernel sourctree with
the original parameters set by RedHat in .config.  Finally run "make dep".

make oldconfig
make dep


Correct the Version Header file
===============================

With your favorite text editor modify /usr/src/linux/include/linux/version.h

Find the line that reads:
#define UTS_RELEASE "2.2.16-22"

Change to:
#define UTS_RELEASE "2.2.16-22enterprise"

Save your changes.
Done! You may now build the bcm5700 driver module.