RTEMS on Zynq Microzed

[Webb, Jeffrey A.]

That is basically the process I followed, although I used the Xilinx xsdk tool.  (I did not know about the open source tool -- I will try it when I get a chance.  Do you still use the Xilinx tools to generate the fsbl, or something else?)  There seems to be a somewhat long delay when I boot up my RTEMS application the first time, and there is some issue with the serial port driver that causes missing characters at first.   I usually push the reset button, and things clear up on subsequent reboots.  Anyway, it sounds like there may need to be some changes to the bsp for the microzed, or at least some configuration parameters.  Did you look in the BSP configure script for options like clock rates that may need to be changed?  I had to change the peripheral clock configure option to get the ticker.exe tasks to run at the proper rate, although this didn't seems to alter the baud rate settings.  I might be able to get my hands on a microzed, but it will probably be a couple weeks before I have time to try that.

-Jeff

----- Original Message -----
> Hi Jeff,
> I've tried the following steps:
> 
>  - cloned https://github.com/antmicro/zynq-mkbootimage.git
>  - create a bif file with fsbl.elf, fpga.bit, u-boot.elf (tried both the
> unstripped and stripped version of hello.exe)
>  - I renamed hello.elf into u-boot.elf and created BOOT.BIN
>  - copied BOOT.BIN to the fat partition of the microSD
> 
> Nothing comes out of the terminal window:I repeadetly see the blue led for
> a short period (I think is indicating the bitstream being loaded), followed
> by a shot blink of a red led.
> Am I doing anything wrong?
> 
> thank you for your help,
> Davide
> 
> 
> 2015-09-30 19:49 GMT+02:00 Jeff Webb <jeff.webb at nta-inc.net>:
> 
> > On 09/30/2015 10:34 AM, Davide Viti wrote:
> >
> >> Hi,
> >> I own a Microzed board and recently managed to boot it using buildroot
> >> using a recent (2015.07) uboot and the Zedboard DTS shipped in the Xilinx
> >> repository of the linux kernel.
> >> Given the above, I assumed I cuold try RTEMS on the Microzed, using the
> >> Zedboard BSP.
> >>
> >> I successfully built the toolchain and the BSP (xilinx_zynq_zedboard) out
> >> of the latest version of the git repositories and I'm trying to boot the
> >> hello.exe sample following these steps:
> >>
> >> arm-rtems4.11-objcopy -R -S -O binary hello.exe hello.bin
> >> mkimage -A arm -O rtems -T kernel -C none -n "RTEMS Application" -d
> >> hello.bin hello.img
> >>
> >> I write the hello.img file on the microSD along with:
> >>
> >>   - BOOT.BIN
> >>   - system.bit
> >>   - u-boot-dtb.img
> >>
> >> and u-boot starts fine:
> >>
> >> ---------------------------
> >> U-Boot SPL 2015.07 (Sep 25 2015 - 09:24:38)
> >> mmc boot
> >> reading system.dtb
> >> spl_load_image_fat_os: error reading image system.dtb, err - -1
> >> reading u-boot-dtb.img
> >> reading u-boot-dtb.img
> >>
> >>
> >> U-Boot 2015.07 (Sep 25 2015 - 09:24:38 +0200)
> >>
> >> Model: Zynq MicroZED Board
> >> I2C:   ready
> >> DRAM:  ECC disabled 1 GiB
> >> MMC:   zynq_sdhci: 0
> >> Using default environment
> >>
> >> In:    serial
> >> Out:   serial
> >> Err:   serial
> >> Model: Zynq MicroZED Board
> >> Net:   Gem.e000b000
> >> Error: Gem.e000b000 address not set.
> >>
> >> zynq-uboot> fatload mmc 0 0x1000000 hello.img
> >> reading hello.img
> >> 1039120 bytes read in 107 ms (9.3 MiB/s)
> >> zynq-uboot> bootm 0x1000000
> >> ## Booting kernel from Legacy Image at 01000000 ...
> >>     Image Name:   RTEMS Application
> >>     Image Type:   ARM RTEMS Kernel Image (uncompressed)
> >>     Data Size:    1039056 Bytes = 1014.7 KiB
> >>     Load Address: 00000000
> >>     Entry Point:  00000000
> >>     Verifying Checksum ... OK
> >>     Loading Kernel Image ... OK
> >> ## Transferring control to RTEMS (at address 00000000) ...
> >>
> >> Could you please give me some advices?
> >> Are there any known success stories with this board
> >>
> >
> > I have RTEMS running on a ZedBoard, but I have not tried the microzed
> > yet.  I did not use u-boot, however.  I built a new BOOT.BIN file using the
> > SDK that consisted of the fsbl, fpga bitstream, and my RTEMS elf
> > application.  (Basically, I just replaced u-boot with my RTEMS
> > application).
> >
> > -Jeff
> >
> >
> >
> >
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> >
>