Date: Mon, 26 Dec 2016 02:05:38 +0100 From: =?utf-8?Q?Daniel_H=C3=BCbleitner?= <daniel.huebleitner@student.tuwien.ac.at> To: freebsd-arm@freebsd.org Subject: Finally bringing FreeBSD to Parallella Message-ID: <7E7AC5B2-02A5-462B-B111-F0C7DCF59DF4@student.tuwien.ac.at>
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[-- Attachment #1 --] Merry Christmas everyone, I am trying to port FreeBSD on the parallella board. So far I just wrote a kernel config where I included the zedboard config. I can build the world no problem. Where I ran into trouble is trying to statically compile the DTB. I have to say I dont really understand how the OS knows the driver it should use from the DTS. Furthermore there is a DTS under GPL from Xilinx itself in ../../../gnu/dts/arm/zynq-parallella.dts. How can it be that the Vendor DTS is so much different from the BSD DTS in sys/boot/fdt/dts. Shouldnt be there just one correct DTS for each board? And could it work if I just use the Vendor DTS? It looks to me that everybody just writes the DTS the way they want and due to a miracle it somehow works. So what I´m trying to say is, would someone be interested in helping me bringing FreeBSD to the parallella micro-server. Its the first time I try to port BSD and I am doing it as part of a university project where I want to benchmark FreeBSD against Linux. I attached the kernel config I have so far. There are some links to the hardware in the config header. Thanks in advance. Kind regards, Daniel [-- Attachment #2 --] # # PARALLELLA_SERVER # Custom configuration for the Xilinx Zynq-7010/20 16 core # adapteva epiphany coprocessor based parallella16 board. # (https://www.xilinx.com) # (https://www.parallella.org) # (http://www.adapteva.com) # # For more information on this file, please read the config(5) manual page, # and/or the handbook section on Kernel Configuration Files: # # http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html # # The handbook is also available locally in /usr/share/doc/handbook # if you've installed the doc distribution, otherwise always see the # FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the # latest information. # # An exhaustive list of options and more detailed explanations of the # device lines is also present in the ../../conf/NOTES and NOTES files. # If you are in doubt as to the purpose or necessity of a line, check first # in NOTES. # # $FreeBSD$ ident PARALLELLA_SERVER #name of the kernel include ZEDBOARD #include the kernel config from the Zedboard maxusers 0 #when set 0 autotune internal table sizes according to space available options INCLUDE_CONFIG_FILE #include this file in kernel options COMPAT_LINUXKPI #enable Linux Kernel Programming Interface makeoptions BOOTWAIT=1000 #wait 1sec before boot makeoptions COPTFLAGS=-O3 #compiler optimization on 3 makeoptions KERNCONF=PARALLELLA_SERVER #kernelconfig to build # Flattened Device Tree options FDT_DTB_STATIC #compile device tree blob static into kernel makeoptions FDT_DTS_FILE=../../../gnu/dts/arm/zynq-parallella.dts #dts file relativ to sys/boot/fdt/dts makeoptions WITHOUT_MODULES="dtb/zynq" #remove module dtb/zynq from zedboard config since DTB is staic
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