Hi all, As many of you may have noticed (if in IRC) I have been working on integrating the ZedBoard. With the help of some of you, I can present you an almost-working version of such integration.
It has some handicaps, but it's almost working. All the work is available at https://github.com/txomon/openwrt in integration/xilinx-zynq branch. There is still a huge work to be done, mainly by shipping xilinx patches divided instead of a big bunch of them. The problem I am targeting now is that for some reason, the card is not booting, gets stuck while loading kernel[1], so I supposed that it was due to some incompatibility with the v3.13.7 patches, but using the kernel tree override pointing to the Xilinx vanilla kernel doesn't seem to fix it, so I run out of idea. I don't know how to continue on this, as my knowledge is quite limited, and it's the first time I have done something like this. In case someone interested, I got references from buildroot, where I have taken ideas from. To compile and test it, you must have a Xilinx installation, as you have to copy two source files from it, that due to licensing problems, are undistributable. My u-boot script does the copy for you. The config parameters to get where I am are: - Target System -> Xilinx Zynq7000 silicons - Subtarget -> Zedboard - Target Images -> [*] ramdisk - Boot Loaders -> <*> uboot-zynq-zedboard - Boot Loaders -> Xilinx installation Path -> here you must point to your xilinx installation path, for me = /opt/Xilinx/14.7/ISE_DS/ If someone gives me support on this, I could continue "developing", testing and trying to have it running. For the moment, overriding the kernel tree to use Xilinx provided one to assert that it wasn't a kernel problem was my last idea. Regards, Javier Domingo Cansino [1] Serial output: --- Device: zynq_sdhci Manufacturer ID: 27 OEM: 5048 Name: SD04G Tran Speed: 50000000 Rd Block Len: 512 SD version 3.0 High Capacity: Yes Capacity: 3.7 GiB Bus Width: 4-bit reading uEnv.txt ** Unable to read file uEnv.txt ** Copying Linux from SD to RAM... reading uImage 4582096 bytes read in 443 ms (9.9 MiB/s) reading devicetree.dtb 2739 bytes read in 15 ms (177.7 KiB/s) reading uramdisk.image.gz 917825 bytes read in 99 ms (8.8 MiB/s) ## Booting kernel from Legacy Image at 03000000 ... Image Name: ARM OpenWrt Linux-3.13.7 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 4582032 Bytes = 4.4 MiB Load Address: 80000000 Entry Point: 80000000 Verifying Checksum ... OK ## Loading init Ramdisk from Legacy Image at 02000000 ... Image Name: Image Type: ARM Linux RAMDisk Image (uncompressed) Data Size: 917761 Bytes = 896.3 KiB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK ## Flattened Device Tree blob at 02a00000 Booting using the fdt blob at 0x2a00000 Loading Kernel Image ... --- _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
