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

Marek Vasut
2019-01-01T20:36:16Z

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@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.

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 .

--
Best regards,
Marek Vasut