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.c...@intel.com wrote: >>> >>> From: Tien Fong Chee <tien.fong.c...@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...@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 . -- Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot