From c139f0cce7d78e21b67f4649541a25ae8b5251f4 Mon Sep 17 00:00:00 2001 From: Jan Viktorin Date: Tue, 14 Jul 2015 17:16:14 +0200 Subject: [PATCH] zedboard: Update readme.txt to reflect BOOT.BIN generation Signed-off-by: Jan Viktorin Signed-off-by: Thomas Petazzoni --- board/avnet/zedboard/readme.txt | 84 +++++++++++++++------------------ 1 file changed, 38 insertions(+), 46 deletions(-) diff --git a/board/avnet/zedboard/readme.txt b/board/avnet/zedboard/readme.txt index a3f1f3e69f..e0ce0249c0 100644 --- a/board/avnet/zedboard/readme.txt +++ b/board/avnet/zedboard/readme.txt @@ -5,68 +5,60 @@ System-On-Chip. Zedboard information including schematics, reference designs, and manuals are available from http://www.zedboard.org . -The U-Boot firmware for the Xilinx Zynq All Programmable SoC depends -on some proprietary code. This dependency consists of a pair of -files are available from the Xilinx SDK installation. +Steps to create a working system for Zedboard: -You will need these files from Xilinx SDK installation to generate -the U-Boot firmware: - ps7_init.c - ps7_init.h +1) make zedboard_defconfig +2) make +3) copy files BOOT.BIN, u-boot-dtb.img, rootfs.cpio.uboot, + uImage, zynq-zed.dtb into your SD card +4) boot your Zedboard -Buildroot will create the following files and place them in the -/images directory. - zynq-zed.dtb - rootfs.cpio.uboot - uImage - u-boot.img - boot.bin +The expected output: + U-Boot SPL 2015.07-rc2 (Jun 18 2015 - 16:42:58) + mmc boot + reading system.dtb + spl_load_image_fat_os: error reading image system.dtb, err - -1 + reading u-boot-dtb.img + reading u-boot-dtb.img -uboot.bin -- U-Boot SPL w/ Xilinx boot.bin wrapper ---------------------------------------------------- + U-Boot 2015.07-rc2 (Jun 18 2015 - 16:42:58 +0200) -Due to licensing issues, the files ps7_init.c/h are not able to be -distributed with the U-Boot source code. These files are required to make a -boot.bin file. - -If you already have the Xilinx tools installed, the following sequence will -unpack, patch and build the rfs, kernel, uboot, and uboot-spl. - -make zedboard_defconfig -make uboot-patch -cp ${XILINX}/ISE_DS/EDK/sw/lib/hwplatform_templates/zed_hw_platform/ps7_init.{c,h} \ -output/build/uboot-xilinx-v2014.1/board/xilinx/zynq/ - -After copying these files into the U-Boot source tree, you can -continue the build with: - -make - -*Notice* -While the build will successfully complete without the ps7_init.* -files, the uboot.bin file generated by this configuration will not -function properly on the Zedboard. Therefore, it is imperative that -the ps7_init.* files be copied into the U-Boot source tree any time -the clean, or uboot-dirclean targets are made. + Model: Zynq ZED Board + I2C: ready + DRAM: ECC disabled 512 MiB + MMC: zynq_sdhci: 0 + Using default environment + ... +When using an older U-Boot then 2015.07, a working ps7_init.c +file is required to be installed into the U-Boot directory +structure. From 2015.07, the major Zynq-based boards are +supported without any manual intervention. Resulting system ---------------- A FAT32 partition should be created at the beginning of the SD Card and the following files should be installed: - /boot.bin - /devicetree.dtb + /BOOT.BIN + /zynq-zed.dtb /uImage - /uramdisk.image.gz - /u-boot.img + /rootfs-cpio.uboot + /u-boot-dtb.img All needed files can be taken from output/images/ -boot.bin, uImage and u-boot.img are direct copies of the same files +BOOT.BIN, uImage and u-boot-dtb.img are direct copies of the same files available on output/images/ -devicetree.dtb is just zynq-zed.dtb renamed. +There is a patch attached that redefines the U-Boot's environment +to work with Buildroot out-of-the-box. + +You can alter the booting procedure by creating a file uEnv.txt +in the root of the SD card. It is a plain text file in format += one per line: -uramdisk.image.gz is rootfs.cpio.uboot renamed +kernel_image=myimage +modeboot=myboot +myboot=... -- 2.30.2