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

[Chee, Tien Fong]

On Tue, 2019-01-01 at 21:36 +0100, Marek Vasut wrote:
> On 1/1/19 3:52 AM, Chee, Tien Fong wrote:
> > 
> > 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 at 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@lists.denx.de/msg308954.
> > > > html
> > > >    Reviewed-by: Simon Glass <s... at chromium.org>
> > > > 
> > > > 2. [U-Boot] [PATCH v2] Add support for initializing MMC
> > > >    https://www.mail-archive.com/u-boot@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.
> Happy New Year to you too.
> 
> > 
> > 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.
> I hope you can wrap this into V7 .
Sure.
>