[U-Boot-Users] [PATCH 11/11] Add support for Xilinx Virtex2Pro based ant2 board
Keith J Outwater
kjoutwater at raytheon.com
Fri May 5 20:27:53 CEST 2006
Due to list size limitations, I have sent a patch directly to Wolfgang
Denk which add support for a custom Virtex2Pro FPGA (PPC405) based ant2
board.
The board uses a Xilinx SystemACE to configure the FPGA and a Compact
Flash card to store FPGA configuration data. The ant2 BSP stores all
nonvolatile data on the CF card since the board does not have any fixed
(i.e. non-removable) nonvolatile memory.
The CF card contains the FPGA configuration bitstream, the kernel image,
the root filesystem image, a default environment initialization script,
and the U-Boot bootloader image. A small Initial Program Loader (IPL) is
incorporated into the FPGA bitstream and is placed into on-chip FPGA RAM
at FPGA configuration. The IPL loads the U-Boot image into main memory
and then transfers control. This two stage scheme reduces the FPGA
on-chip RAM requirements from approximately 256 KiB to approximately 25
KiB.
Signed-off-by: Keith Outwater <outwater4 at comcast.net>
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