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

[Marek Vasut]

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.

-- 
Best regards,
Marek Vasut