6dd5a33c48
This is the latest release tag in the Xilinx repository, based on U-Boot v2016.01 in the mainline. Commit46d6a561be
("zedboard: Generate BOOT.BIN automatically") switched from the Xilinx GitHub repository to the U-Boot mainline, but this commit gets it back to the Xilinx GitHub repository for the following reasons: - This defconfig still relies on the Xilinx's local repository for the kernel. The vendor does the best test for the combination of U-Boot and the kernel with the same release tag (xilinx-v2016.2 in this case). - At the time of commit46d6a561be
, the u-boot-xlnx still needed manual copy of ps7_init(_gpl).c/h in order to build a working SPL image. So, the mainline U-Boot had advantage in that point of time. However, the improvement in the mainline U-Boot was merged into the u-boot-xlnx at the xilinx-v2015.3 release. Now, the mainline and the u-boot-xlnx are even in this point of view. - The mainline U-Boot defaults to boot FIT, so something must be done; either patch environments around with a local patch to switch to uImage booting (current solution), or build an FIT with a post build script (chromebook snow does this). On the other hand, the Xilinx repository defaults to uImage booting, so it is straightforward, and needs no addition care. This commit does: - Switch to the Xilinx custom git repository, and stick to the xilinx-v2016.2 tag. - Delete the local patch board/avnet/zedboard/uboot/0001... since the Xilinx custom repository can boot uImage by default. - Enable BR2_TARGET_UBOOT_FORMAT_IMG instead of ..._FORMAT_DTB_IMG since all the Zynq boards in U-Boot enable CONFIG_OF_EMBED. - Replace BR2_TARGET_UBOOT_ZYNQ_IMAGE with BR2_TARGET_UBOOT_SPL_NAME since U-Boot can natively generate the Zynq boot image now. The Zynq image support for mkimage tool was upstreamed at v2016.01 (so xilinx-v2016.1 as well), so no additional tool is needed any more. - Update readme.txt Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Matt Weber <matthew.weber@rockwellcollins.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
29 lines
939 B
Plaintext
29 lines
939 B
Plaintext
This is the buildroot board support for the Avnet Zedboard. The Zedboard is
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a development board based on the Xilinx Zynq-7000 based All-Programmable
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System-On-Chip.
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Zedboard information including schematics, reference designs, and manuals are
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available from http://www.zedboard.org .
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Steps to create a working system for Zedboard:
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1) make zynq_zed_defconfig
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2) make
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3) All needed files will be available in the output/images directory.
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Create a FAT32 partition at the beginning of your SD Card and copy files:
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- boot.bin
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- u-boot.img
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- uImage
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- uramdisk.image.gz (should be renamed from rootfs.cpio.uboot)
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- devicetree.dtb (should be renamed from zynq-zed.dtb)
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into your SD card
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4) boot your Zedboard
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You can alter the booting procedure by creating a file uEnv.txt
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in the root of the SD card. It is a plain text file in format
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<key>=<value> one per line:
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kernel_image=myimage
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modeboot=myboot
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myboot=...
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