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

Marek Vasut
2019-01-03T20:16:06Z

On 1/3/19 6:33 AM, Chee, Tien Fong wrote:
> 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@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 .
> Sure.

Thanks

--
Best regards,
Marek Vasut