Re: [Xc3sprog-users] Bringing FreeBSD support to xc3sprog.

[Uwe B. <bo...@el...>]

(setting the xc3sprog mailing list on the CC)
>>>>> "Wojciech" == Wojciech A Koszek <wk...@Fr...> writes:

    Wojciech> On Sat, Jan 16, 2010 at 12:12:03AM +0100, Uwe Bonnes wrote:
    >> >>>>> "Wojciech" == Wojciech A Koszek <wk...@Fr...> writes:
    >> 
    Wojciech> Hi, I want to have FreeBSD support in xc3sprog.  This is first
    Wojciech> patch that makes you code compile cleanly under FreeBSD:
    >>
    Wojciech> http://freebsd.czest.pl/~wkoszek/fpga/xc3sprog.0.patch

Thanks for reminding! I didn't notice in the first mail.

I added the errno.h in the FreeBSD conditional path. (Rev 428)

A CMAKE Toolchain File is only needed for crosscompiling. Did you
crosscompile? Or does CMAKE not work appropriate on FreeBSD? 
It's added as Rev 429.
    >>
    Wojciech> 0x03fd:0x0008 is for default iMPACT firmware for Cypress's FX2
    Wojciech> chip?  I run Spartan 3E-500 Starter Kit with chip reprogrammed
    Wojciech> with xc3sprog and there it's 0x03fd:0x000d that is detected..
    >>  0x03fd:0x000d is the Xilinx FX2 CHIP-ID. You must load the
    >> appropriate firmware. When you install the impact cable drivers ( in
    >> linux, can you report what happens in BSD when installing the XILINX
    >> driver?) the firmware and udev rules are copied to the ppropriate
    >> places. You can also load the firmware by hand with fxload or maybe
    >> other loaders. After loading the right firmware, the chip
    >> reenumerated and should get listed as 0x03fd:0x0008.

Can't you compile native? Only libusb/libftdi should be needed and available
for BSD too. Please let me know about problems.

    Wojciech> OK, I didn't know that on Linux fxload stage is necessary as a
    Wojciech> first step.

    Wojciech> We have Linux emulation layer, so that you can run Linux
    Wojciech> binaries on FreeBSD without a lot of problems. I have
    Wojciech> /compat/linux directory which can be populated by binary
    Wojciech> packages.  Each package contains Linux binaries and
    Wojciech> libraries. They can be executed from this directory.
    Wojciech> /compat/linux is basically it's where everything gets
    Wojciech> installed. So my ISE is under /compat/linux/opt/Xilinx/... and
    Wojciech> I have all the .hex files there.

    Wojciech> In terms of drivers...

    Wojciech> Layout of /dev in Linux and FreeBSD differs. But I've compiled
    Wojciech> FreeBSD's libusb(3) implementation on Linux machine and got
    Wojciech> USB to work in emulation.  and I also got Impact working
    Wojciech> natively with it--I can right now use it to program my Spartan
    Wojciech> 3E-Starter Kit.

    Wojciech> Today I commited kernel level patch to make this
    Wojciech> happen. User-space patch is being reviewed.

    Wojciech> Delay in a response is caused by the fact that we seem to have
    Wojciech> no native fxload here, so I had to look around and found
    Wojciech> libusb-enabled Windows port of fxload, which compiled for me
    Wojciech> after minor tweaks.

    Wojciech> Does it answer your question?

    Wojciech> Anyway, this is what I get from your code:

    Wojciech> wkoszek@laptop:/media/Multimedia/fpga/xc3sprog/trunk/build#
    Wojciech> ./xc3sprog -c xpc Release $Rev: 426 $ Free software: If you
    Wojciech> contribute nothing, expect nothing!  Please provide feedback
    Wojciech> on success/failure/enhancement requests!  Check Sourceforge
    Wojciech> SVN for updates!  DEBUG(xpcu_read_hid:196)rc = -1, errno = 5
    Wojciech> usb_control_msg(0x42.1 Unknown error 

Did you add the  DEBUG(..? It's not from the xc3sprog code. Is errno =5
#define EIO              5      /* I/O error */
on FreeBSD too? 

Why does it get translated to "Unknown error"?
> DEBUG(xpcu_read_hid:196)rc = -1, errno = 5
> usb_control_msg(0x42.1 Unknown error

The Call 0x42.1 however is only a verbatim reproduction of a reverse
engineer run on the XPC. Maybe it's no needed, maybe it should be another
sequence with the DLC9/10 integrated in the Spartan 3E-500 Starter Kit.


    Wojciech> firmware version = 0x0404
    Wojciech> (1028) CPLD version = 0x0012 (18) JTAG loc.: 0 IDCODE:
    Wojciech> 0x41c22093 Desc: XC3S500E IR length: 6 JTAG loc.: 1 IDCODE:
    Wojciech> 0xf5046093 Desc: XCF04S IR length: 8 JTAG loc.: 2 IDCODE:
    Wojciech> 0x06e5e093 Desc: XC2C64A-VQ44 IR length: 8

    Wojciech> Startan 3E Starter Kit identification.

    Wojciech> wkoszek@laptop:/media/Multimedia/fpga/xc3sprog/trunk/build#
    Wojciech> ./xc3sprog -c xpc
    Wojciech> /home/wkoszek/fpga/fbsd-prog/xup-0.0.2/w/wkoszek_leds/leds.bit
    Wojciech> Release $Rev: 426 $ Free software: If you contribute nothing,
    Wojciech> expect nothing!  Please provide feedback on
    Wojciech> success/failure/enhancement requests!  Check Sourceforge SVN
    Wojciech> for updates!  DEBUG(xpcu_read_hid:196)rc = -1, errno = 5
    Wojciech> usb_control_msg(0x42.1 Unknown error firmware version = 0x0404
    Wojciech> (1028) CPLD version = 0x0012 (18)

    Wojciech> Even though I'm getting an errors, this seems to work just
    Wojciech> fine as well.  LED ruler implemented in this bitstream appears
    Wojciech> after programming.


-- 
Uwe Bonnes                bo...@el...

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
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