[meta-xilinx] meta-xilinx Digest, Vol 9, Issue 3

Tue Nov 19 06:52:14 PST 2013

You don't need to program the FPGA at all, you can just boot linux without it.

Just remember to build drivers that need things in logic (e.g. HDMI) as 
modules, otherwise they'll fail and hang or crash your kernel. You can program 
the FPGA from within linux and then load the associated drivers.

You can look at "my" meta-zynq OE layer to get an example of how this works.

Mike.

On 11/19/2013 03:28 PM, Anders Berndtsson wrote:
> Thanks Mike!
>
> I have now created an ext4 partition where the complete rootfs is placed.
> Replaced the devicetree.dtb with the one generated from bitbake  >>
> .../uImage-zedboard-zynq7-mmcblk0p2.dtb
>
> The uboot gives following error >> Error: Timeout waiting for FPGA to
> config.
> How should I apply the FPGA bit file?
> Is there any way to boot the linux without configure the FPGA?
>
> U-Boot 2013.01-dirty (Jun 14 2013 - 16:25:48)
>
> DRAM:  512 MiB
> WARNING: Caches not enabled
> MMC:   zynq_sdhci: 0
> SF: Detected S25FL129P_64K with page size 64 KiB, total 16 MiB
> In:    serial
> Out:   serial
> Err:   serial
> Net:   Gem.e000b000
> Hit any key to stop autoboot:  0
> Copying Linux from SD to RAM...
> Device: zynq_sdhci
> Manufacturer ID: 2
> OEM: 544d
> Name: SA04G
> Tran Speed: 50000000
> Rd Block Len: 512
> SD version 2.0
> High Capacity: Yes
> Capacity: 3.6 GiB
> Bus Width: 4-bit
> Loading bitstream from SD/MMC/eMMC to RAM..
> Device: zynq_sdhci
> Manufacturer ID: 2
> OEM: 544d
> Name: SA04G
> Tran Speed: 50000000
> Rd Block Len: 512
> SD version 2.0
> High Capacity: Yes
> Capacity: 3.6 GiB
> Bus Width: 4-bit
> reading system.bit.bin
> 2858832 bytes read in 394 ms (6.9 MiB/s)
> Error: Timeout waiting for FPGA to config.
> fpga - loadable FPGA image support
>
> Usage:
> fpga [operation type] [device number] [image address] [image size]
> fpga operations:
>    dump  [dev]                   Load device to memory buffer
>    info  [dev]                   list known device information
>    load  [dev] [address] [size]  Load device from memory buffer
>    loadb [dev] [address] [size]  Load device from bitstream buffer (Xilinx
> only)
>    loadmk [dev] [address]        Load device generated with mkimage
>          For loadmk operating on FIT format uImage address must include
>          subimage unit name in the form of addr:<subimg_uname>
> zynq-uboot>
>
>
> Kind Regards
> Anders Berndtsson
>
>
>
>
> 

Met vriendelijke groet / kind regards,

Mike Looijmans

TOPIC Embedded Systems
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E-mail: mike.looijmans at topic.nl
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-----Original Message-----
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> [mailto:meta-xilinx-bounces at yoctoproject.org] On Behalf Of
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> Subject: meta-xilinx Digest, Vol 9, Issue 3
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>     1. Re: SD Card image and Function faild: do_packages_qa
>        (Mike Looijmans)
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> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 14 Nov 2013 11:54:25 +0100
> From: Mike Looijmans <mike.looijmans at topic.nl>
> To: <meta-xilinx at yoctoproject.org>
> Subject: Re: [meta-xilinx] SD Card image and Function faild:
> 	do_packages_qa
> Message-ID: <5284ABE1.8000308 at topic.nl>
> Content-Type: text/plain; charset="utf-8"; format=flowed
>
> ?On 11/14/2013 11:15 AM, Anders Berndtsson wrote:
>> Hi all,
>>
>> What controls the format of the output image files?
>
> The IMAGE_FSTYPES variable in the recipes and/or config file.
>
> For the zedboard SD card, just unpack the tars onto the card on your PC
> (first partition must be FAT, I recommend using a second ext4 partition for
> the rootfs).
>
> Mike.
>