FreeBSD/armv6z/clang on Raspberry Pi 512MB (with U-Boot + ubldr)

[Mats Mellstrand]

Hi

The image works, but I can't get IPv6 to work as expected.

I can ping6 to and from my Raspberry but trying to ssh in to RPIs IPv6 address just hangs.
The same happens when I try to ssh out from RPI to a IPv6 address.
IPv4 works.

The sshd listen to the IPv6 port

root# netstat -an
Active Internet connections (including servers)
Proto Recv-Q Send-Q Local Address          Foreign Address        (state)
tcp4       0      0 *.22                   *.*                    LISTEN
tcp6       0      0 *.22                   *.*                    LISTEN
..


I have disabled the ipfw firewall and "allow all" in /etc/hosts.allow

/mm
 

On 29 jan 2013, at 19:10, Daisuke Aoyama <aoyama at peach.ne.jp> wrote:

> I've updated clang RPI code based on SVN r246066.
> This is OABI version. I plan to try EABI next if possible.
> 
> major change:
> o update base tree to SVN r246066.
> o implement -mload-store-multiple/-mno-load-store-multiple option in clang/llvm. (workaround only)
> o re-enable __clear_cache() in libgcc.
> o bugfix bcm2835_dma inline asm code, etc.
> o use bcm2835_dma_wb/wbinv in SDHCI.
> o add USB LAN and wireless LAN driver module. (loaded by devd automatically)
> o move swap to head of partition.
> o use label mount instead of /dev/mmcsd0s2a,/dev/mmcsd0s2b.
> o add wireless lan, quota, ipfw and IPv6 to kernel config.
> o change default HS mode is enabled.
> 
> To prevent a fault on ldm/stm generated by clang, all files are complied with:
> CFLAGS=-O2 -mno-global-merge -mno-load-store-multiple -fno-strict-aliasing -pipe -mabi=apcs-gnu  -march=armv6z -mtune=arm1176jzf-s -mfloat-abi=soft
> 
> To reduce time in DMA intr, it uses bcm2835_dma_wb/wbinv directly.
> Now it gets 20.7MB/s DMA transfer rate on class 10 SD card. (depend on card spec)
> It's 30% faster than bus_space_XXX/bus_dmamap_XXX.
> 
>> root at raspberry-pi:~ # dd if=/dev/mmcsd0 of=/dev/null bs=1m count=32
>> 32+0 records in
>> 32+0 records out
>> 33554432 bytes transferred in 1.617316 secs (20746986 bytes/sec)
> 
> Known issue:
> DMA intr might be delayed by slow interrupt handler.
> (arm/intr.c:arm_handler_execute specific, should be remapped DMA IRQ to low number)
> 
> 
> You can get the pre-build image from my archives:
> http://www.peach.ne.jp/archives/rpi/
> 
> Download and decompress it, then write it to SD. This image requires SD 8GB or more.
> I'm using it as headless server. So, you need a serial console for seeing full boot log.
> If you want the video out, please remove the line of "set console=comconsole" in /boot/loader.rc.
> 
> Using config is here:
> http://www.peach.ne.jp/archives/rpi/config/RPI-B-test15
> 
> The source/patch is here:
> http://www.peach.ne.jp/archives/rpi/patch/
> 
> For more info, please read old ML or Japanese blog:
> http://lists.freebsd.org/pipermail/freebsd-arm/2013-January/004555.html
> http://lists.freebsd.org/pipermail/freebsd-arm/2013-January/004541.html
> http://lists.freebsd.org/pipermail/freebsd-arm/2013-January/004507.html
> http://lists.freebsd.org/pipermail/freebsd-arm/2012-December/004421.html
> http://lists.freebsd.org/pipermail/freebsd-arm/2012-December/004331.html
> http://shell.peach.ne.jp/aoyama/
> 
> ----------------------------------------------------------------------
> How to build/install the kernel:
> 
> # fetch -o /usr http://www.peach.ne.jp/archives/rpi/patch/src-246066-20130130.patch.gz
> # fetch -o /usr/src/sys/arm/conf http://www.peach.ne.jp/archives/rpi/config/RPI-B-test15
> # fetch -o /usr/src/sys/arm/broadcom/bcm2835 http://www.peach.ne.jp/archives/rpi/patch/bcm2835_asm.S
> # fetch -o /usr/src/sys/arm/broadcom/bcm2835 http://www.peach.ne.jp/archives/rpi/patch/bcm2835_asm.h
> # fetch -o /usr/src/sys/arm/broadcom/bcm2835 http://www.peach.ne.jp/archives/rpi/patch/bcm2835_dma.c
> # fetch -o /usr/src/sys/arm/broadcom/bcm2835 http://www.peach.ne.jp/archives/rpi/patch/bcm2835_dma.h
> 
> # cd /usr/src
> # gzcat /usr/src-246066-20130130.patch.gz | patch
> # make buildkernel KERNCONF=RPI-B-test15 WITH_FDT=yes
> (wait about 50 minutes)
> # make installkernel KERNCONF=RPI-B-test15
> ----------------------------------------------------------------------
> 
> 
> Enjoy clang world in Raspberry Pi!
> Thank you.
> -- 
> Daisuke Aoyama
> 
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