Date
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mail list for Xilinx Zynq platform?
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Daniel Martinez Ramos <daniel.martinez@...>
Hi all,
I've found a bsp layer in Xilinx here http://forums.xilinx.com/t5/Embedded-Linux/Yocto-BSP-for-ZC-702/td-p/246932, which is pretty interesting. Is any mail list under Yocto for the Xilinx Zinq platform? Best regards, Daniel Martinez |
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Elvis Dowson
Hi Daniel,
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As far as I know, there is no specific mailing list for the Xilinx Zynq platform. I use the Xilinx forums to get help at the moment. I personally have used Philip's meta-zynq layer to build a working u-boot and linux kernel image using Yocto. It works really well. Using the Zynq is a little bit different than a standard ARM SOC. If you've worked with the TI OMAP series, you would be familiar with the x-loader component, that runs before u-boot. Well, the only difference here is that you need to use the Xilinx SDK to create a zynq_fsbl (first stage boot loader) project, using the defaults. Once you've got the zynq_fsbl, you have a couple of options a. Create a bootable image Use the SDK create boot image utility to create a bootable image - zynq_fsbl - u-boot.bin - system.bit (hardware bitstream) You would rename the resultant file as BOOT.bin. After that, you can drop the linux kernel uImage onto an SD card and boot linux as normal. b. Download to the target using xmd and a tcl script Use the xapp792 design files, to see how to download the binaries to the Zynq board using a JTAG cable. The tcl file is located in xapp792/zc702_video_3x_pipeline/ready_for_download/xmd_top.tcl The whole process takes a couple of days to get used to. Let me know if you get stuck somewhere. Best regards, Elvis DOwson On Nov 26, 2012, at 12:45 PM, Daniel Martinez Ramos <daniel.martinez@...> wrote:
Hi all, |
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Andreas Schweigstill <andreas@...>
Hello!
I personally have used Philip's meta-zynq layer to build a working u-boot andI have also tried to build a kernel and root filesystem for Zynq but the kernel gets stuck when booting, regardless if on the ZC702 board or on Qemu. I tried Poky denzil and Poky danny. Also the alternate meta-zynq layer from git.yoctoproject.org shows the same behaviour. These are the last console messages which I get: ## Booting kernel from Legacy Image at 01000000 ... Image Name: Linux-3.2.11-yocto-standard Created: 2012-12-04 20:07:37 UTC Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 2997472 Bytes = 2.9 MiB Load Address: 00008000 Entry Point: 00008000 Verifying Checksum ... OK ## Flattened Device Tree blob at 01a80000 Booting using the fdt blob at 0x1a80000 Loading Device Tree to 0eff8000, end 0efff185 ... OK Loading Kernel Image ... OK OK Loading Device Tree to 0efed000, end 0eff7185 ... OK Starting kernel ... Instead of using Linux kernel version 3.5-xilinx I always get Linux-3.2.11-yocto-standard which is obviously missing the Zynq patches. meta-zynq/recipes-kernel-linux-zynq contains the following lines: LINUX_VERSION ?= "3.5" LINUX_VERSION_EXTENSION ?= "-xilinx" How can I force Yocto to build kernel 3.5-xilinx? With best regards, Andreas Schweigstill -- Dipl.-Phys. Andreas Schweigstill Schweigstill IT | Embedded Systems Schauenburgerstraße 116, D-24118 Kiel, Germany Phone: (+49) 431 530354-35, Fax: (+49) 431 530354-36 Mobile: (+49) 171 6921973, Web: http://www.schweigstill.de/ |
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Elvis Dowson
Hi,
On Dec 5, 2012, at 5:21 PM, Andreas Schweigstill <andreas@...> wrote: I have also tried to build a kernel and root filesystem for Zynq but the kernelFrom you messages, I infer that you are using the meta-zynq layer located here: http://git.yoctoproject.org/cgit/cgit.cgi/meta-zynq/ For my builds, I used Philip Ballister's meta-zynq layer located here for the simple reason that it uses xilinx git repository: https://github.com/balister/meta-zynq Also, try to ensure that you don't put both the meta-layers in your bblayers.conf file while building, and ensure that you set machine as follows in your local.conf file MACHINE ?= "zynq-zc702" Do let me know how it goes! Best regards, Elvis Dowson |
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Bruce Ashfield <bruce.ashfield@...>
On 12-12-05 09:42 AM, Elvis Dowson wrote:
Hi,And in case anyone is wondering, efforts are (still) underway to get a single unified layer for this board (and others), but getting all the moving parts organized is taking a bit longer than expected or than we would like. Cheers, Bruce
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Philip Balister
On 12/05/2012 06:46 AM, Bruce Ashfield wrote:
On 12-12-05 09:42 AM, Elvis Dowson wrote:Thanks! Should we go ahead and set the list up so interested parties can start coordinating our existing work?Hi,And in case anyone is wondering, efforts are (still) underway to Philip
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Philip Balister
On 12/05/2012 05:21 AM, Andreas Schweigstill wrote:
Hello!Urg, I'll have to take a look at that.I personally have used Philip's meta-zynq layer to build a working u-boot andI have also tried to build a kernel and root filesystem for Zynq but the kernel Also, you'll need an updated fsbl in the BOOT.BIN file to work with the later kernels. We should probably post one somewhere, although I wish the fsbl license was a little less restrictive. Philip
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Philip Balister
On 12/05/2012 05:21 AM, Andreas Schweigstill wrote:
Hello!Also, try these instructions. Note they do not use the meta-yocto shim layer (sorry, my customer has been taunting me again).I personally have used Philip's meta-zynq layer to build a working u-boot andI have also tried to build a kernel and root filesystem for Zynq but the kernel I feel like the meta-yocto layer is "forcing" the use of "standard" kernels. Philip
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Bruce Ashfield <bruce.ashfield@...>
On 12-12-05 01:15 PM, Philip Balister wrote:
On 12/05/2012 06:46 AM, Bruce Ashfield wrote:I'm good with that. It's no big commitment to anything in particularOn 12-12-05 09:42 AM, Elvis Dowson wrote:Thanks! Should we go ahead and set the list up so interested parties canHi,And in case anyone is wondering, efforts are (still) underway to to have list available, and hopefully it'll serve to draw the right folks into the conversation. Cheers, Bruce
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Philip Balister
On 12/05/2012 10:30 AM, Bruce Ashfield wrote:
On 12-12-05 01:15 PM, Philip Balister wrote:...On 12/05/2012 06:46 AM, Bruce Ashfield wrote:On 12-12-05 09:42 AM, Elvis Dowson wrote: Micheal, can you set up a mailing list "mete-zynq" for us? Also, please add this to gmane for people that prefer to read via nntp.I'm good with that. It's no big commitment to anything in particular Thanks, Philip
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Andreas Schweigstill <andreas@...>
Hello!
Am Mi, 12/05/2012 19:17, hat Philip Balister <philip@...> geschrieben: On 12/05/2012 05:21 AM, Andreas Schweigstill wrote:After changing the order of BBLAYERS in build/conf/local.conf to meta, meta-zynq,meta-zynq/recipes-kernel-linux-zynq contains the following lines:Urg, I'll have to take a look at that. meta-yocto, meta-yocto-bsp and using Hob to select MACHINE=zynq-zc702, base image=zc702-proto-image everything works fine. Now I get a proper toolchain for Cortex A9 and a kernel named zynq-zc702 3.5.0-14.3-build1-yocto-standard which is properly running on my ZC702 board. Also, you'll need an updated fsbl in the BOOT.BIN file to work with theI haven't built a BOOT.BIN file with Yocto based U-Boot yet. Instead I'm using U-Boot from Petalinux 12.9 which is configured to use the QSPI Flash to store its environment. Currently I boot from QSPI Flash, load kernel und DTB files via TFTP and use a root filesystem stored on a SD card. ;-) Regards, Andreas Schweigstill -- Dipl.-Phys. Andreas Schweigstill Schweigstill IT | Embedded Systems Schauenburgerstraße 116, D-24118 Kiel, Germany Phone: (+49) 431 530354-35, Fax: (+49) 431 530354-36 Mobile: (+49) 171 6921973, Web: http://www.schweigstill.de/ |
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Elvis Dowson
Hi Andreas,
On Dec 6, 2012, at 4:57 PM, Andreas Schweigstill <andreas@...> wrote: After changing the order of BBLAYERS in build/conf/local.conf to meta, meta-zynq,I don't add meta-yocto-bsp to my bblayers configuration. I haven't built a BOOT.BIN file with Yocto based U-Boot yet. Instead I'm usingIf you want to build your own version of BOOT.bin, its quite simple. Just take the u-boot.elf file, and use SDK to create a simple zynq_fsbl project. From that create the boot image, using the SDK, and add the system.bit, zynq_fsbl.elf and u-boot.elf binaries. Rename the produce binary to BOOT.bin, and you're good to go. You can find more information of the boot image creation process on section 3.5, page 29, of the UG821 - Zynq-7000 EPP Software Developers Guide v3.0. From within SDK, it's pretty straightforward, and it will automatically create the bif file after you've specified all the binaries, and create the bootable image. Best regards, Elvis Dowson |
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Andreas Schweigstill <andreas@...>
Dear Elvis!
Am Do, 12/06/2012 16:42, hat Elvis Dowson <elvis.dowson@...> geschrieben: If you want to build your own version of BOOT.bin, its quite simple.Thank you very much for your instructions regarding the creation of my own BOOT.BIN file. Currently I am only evaluating the different Linux build systems resp. "distributions" being quite happy that I don't have to switch U-Boot together with the Linux/rootfs. In the final project we probably won't use U-Boot at all but instead use a proprietary boot mechanism. Regards, Andreas Schweigstill -- Dipl.-Phys. Andreas Schweigstill Schweigstill IT | Embedded Systems Schauenburgerstraße 116, D-24118 Kiel, Germany Phone: (+49) 431 530354-35, Fax: (+49) 431 530354-36 Mobile: (+49) 171 6921973, Web: http://www.schweigstill.de/ |
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Philip Balister
On 12/06/2012 04:57 AM, Andreas Schweigstill wrote:
Hello!Thanks for the feedback. Good luck with your evaluation. Let us know if you have anymore questions. Philip
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