[U-Boot] [PATCH 0/6] Add support for loading FPGA bitstream

Chee, Tien Fong
2019-01-01T02:52:38Z

On Sun, 2018-12-30 at 16:44 +0100, Marek Vasut wrote:
> On 12/30/18 9:13 AM, tien.fong.chee at intel.com wrote:
> >
> > From: Tien Fong Chee <tien.fong.chee@intel.com>
> >
> > These series of patches enable peripheral bitstream being
> > programmed into FPGA
> > to get the DDR up running. This's also called early IO release,
> > because the
> > peripheral bitstream is only initializing FPGA IOs, PLL, IO48 and
> > DDR.
> >
> > Once DDR is up running, core bitstream from MMC which contains user
> > FPGA
> > design would be loaded into DDR location. socfpga loadfs would be
> > called to
> > program core bitstream into FPGA and entering user mode.
> >
> > Lastly, u-boot-dtb.img from MMC FAT partition would be loaded to
> > DDR, and up
> > running from there.
> >
> > For this whole mechanism to work, the SDMMC flash layout would be
> > designed as
> > shown in below:
> >
> > RAW partition:
> > 1. spl_w_dtb-mkpimage.bin
> > mkpimage -hv 1 -o spl/spl_w_dtb-mkpimage.bin spl/u-boot-spl-dtb.bin
> >  spl/u-boot-spl-dtb.bin spl/u-boot-spl-dtb.bin spl/u-boot-spl-
> > dtb.bin
> >
> > FAT partition contains:
> > Bitstreams
> > ----------
> > Early IO release method is recommended for the sake of performance,
> > improve
> > up to 86% compare to full RBF.
> >
> > 1. ghrd_10as066n2.periph.rbf.mkimage
> > mkimage -A arm -T firmware -C none -O u-boot -a 0 -e 0 -n \"RBF\"
> > -d
> >  ghrd_10as066n2.periph.rbf ghrd_10as066n2.periph.rbf.mkimage
> >
> > 2. ghrd_10as066n2.core.rbf.mkimage
> > mkimage -A arm -T firmware -C none -O u-boot -a 0 -e 0 -n \"RBF\"
> > -d
> >  ghrd_10as066n2.core.rbf ghrd_10as066n2.core.rbf.mkimage
> >
> > OR
> >
> > 1. ghrd_10as066n2.rbf.mkimage (full RBF)
> > mkimage -A arm -T firmware -C none -O u-boot -a 0 -e 0 -n \"RBF\"
> > -d
> >  ghrd_10as066n2.rbf ghrd_10as066n2.rbf.mkimage
> >
> > U-Boot image
> > ------------
> > 3. u-boot-dtb.img
> >
> > For the testing purpose, these two patches are required to apply
> > 1st before
> > applying this series of patches.
> > 1. [U-Boot] [PATCH] misc: fs_loader: Switching private data
> > allocation to DM
> >    auto allocation
> >    https://www.mail-archive.com/u-boot at lists.denx.de/msg308954.html
> >    Reviewed-by: Simon Glass <s...@chromium.org>
> >
> > 2. [U-Boot] [PATCH v2] Add support for initializing MMC
> >    https://www.mail-archive.com/u-boot at lists.denx.de/msg310532.html
> >    Version 2 under review.
> The above should be made into documentation, since cover letters are
> dropped.
Happy new year Marek.

Yeah, the document would be sent out once the implementation is
finalized. Hence, we need your mercy and help to get this done :-P,
just kidding.
>