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. -- Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
