applying patch Angstrom and OE‏

Hello everyone,
I'm trying to get the SPI working on ; BeagleBoard-xM rev.C by rebuilding the Kernel with OE.
Let's see the steps I'm following : [](
I'm stuck at theses steps : 
                 * Patch the Linux Kernel 2.6.32 BeagleBoard board specific 
arch/arm/mach-omap2/board-omap3beagle.c so that the SPI pins get 
configured correctly and the SPIDEV driver is made aware of the SPI 
devices on the board.
                  *Once the kernel was patched I used the Angstrom distribution OpenEmbedded build environment to re-build the kernel.
For now I have followed this page : [](
but before building : MACHINE=beagleboard ./ bitbake virtual/kernel, I'd like to apply this patch :
I have been searching a lot on the internet and each source give different way but never just following : [](
[]( says that I should change recipes or changes fils arm/arch/...
or other sources build out of the OE tree.
The problem is that I cannot find in the setup-script folder any of these file and I don't understand how to apply this patch in OE.
I hope I was enough clear
Waiting for some help,