Bootloader & Flash

Bootloader & Flash

[schardt]

Hi,

i use the AVnet Xilinx4 FX12 Minimodule and until now, i use system-ace
to configure the fpga and boot the linux kernel.
But now, i want to boot from the on board flash memory and have no idea
where to start.

I think i have to:
- save the fpga configuration in the fpga-prom
- use/program some kind of bootloader store in fpga block ram to jump to
the flash-adress where the executable linux kernel resist
- use the mtd-device driver to mount  root fs on the same flash some
address later

Is this the right way ?


Regards
Georg






-----------------------------------------------------------------------------------------
-----------------------------------------------------------------------------------------
Forschungszentrum Jülich GmbH
52425 Jülich

Sitz der Gesellschaft: Jülich
Eingetragen im Handelsregister des Amtsgerichts Düren Nr. HR B 3498
Vorsitzende des Aufsichtsrats: MinDirig'in Bärbel Brumme-Bothe
Geschäftsführung: Prof. Dr. Achim Bachem (Vorsitzender), Dr. Ulrich Krafft (stellv. 
Vorsitzender)
-----------------------------------------------------------------------------------------
-----------------------------------------------------------------------------------------

RE: Bootloader & Flash

[MingLiu]
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RE: Bootloader & Flash

[MingLiu]

[-- Attachment #1: Type: text/plain, Size: 908 bytes --]


Hi,
 > Could I store both, hw bitstream and kernel, in the xilinx platform> flash ? i think its not bit enough. I want to store the hw bitstream in> the platform flash as usual and the kernel in the additional flash.> I don't know how to store the kernel in the flash until know. This why I> try with the MTD devices.
 
You can store HW with EDK bootloader on either of the flashes. But you can only store kernel in linear flash because it is accessible through opb bus. 
> I want the root-fs on flash, but this is future :) First i try to boot> the kernel
I do not have experience to set up a file system in flash memory. What I have done is to put it in the CF card or via NFS. But I guess with MTD driver's support, it will not be difficult to do that. 
 
Good luck.
 
BR
Ming
_________________________________________________________________
手机也能上 MSN 聊天了，快来试试吧！
http://mobile.msn.com.cn/

[-- Attachment #2: Type: text/html, Size: 1195 bytes --]

Re: Bootloader & Flash

[schardt]

Hi again,

i've learned a little bit :)

- I have download the zImage.elf via the EDK flash loader
- The flash loader creates a bootloader, this is also running on start up=
 :)

But ... It stops with an error-message after a few seconds:

EDK Bootloader:
Bootloader: Processed (0x)000000b2 S-recordsERROR: SREC line is corrupted=


What now ?

Georg


MingLiu wrote:
> Dear Georg,
> I guess you were talking about the booting process of the system, both =
HW and the SW, from the flash memory. This process should be like this:
>
> 1. Store your HW bitstream and Linux kernel in flash memories. If neede=
d, perhaps you want another bootloader program, such as U-boot also insid=
e.=20
>
> 2. In your HW bitstream, you need one bootloader which helps you to loa=
d the software and execute it in DDR-ram. EDK helps you to generate such =
a bootloader when you design.=20
>
> 3. Durong Power on, HW bitstream (with an EDK bootloader included) will=
 be loaded into FPGA and configure the FPGA, then the EDK bootloader will=
 load your Linux kernel into DDR-Ram and execute it there. Thus your linu=
x could run.=20
>
> This is a normal process. If you want to execute the program in flash d=
irectly, that's another story. Also you should know, for the booting proc=
ess, MTD driver is not necessary. The driver is only used when you want t=
o access flash memories when you booted your Linux kernel.
>
> Clear or not? :)
>
> Best Regards
> Ming
>
> ----------------------------------------> Date: Wed, 7 Nov 2007 13:00:3=
5 +0100> From: g.schardt@fz-juelich.de> To: Linuxppc-embedded@ozlabs.org>=
 Subject: Bootloader & Flash>> Hi,>> i use the AVnet Xilinx4 FX12 Minimod=
ule and until now, i use system-ace> to configure the fpga and boot the l=
inux kernel.> But now, i want to boot from the on board flash memory and =
have no idea> where to start.>> I think i have to:> - save the fpga confi=
guration in the fpga-prom> - use/program some kind of bootloader store in=
 fpga block ram to jump to> the flash-adress where the executable linux k=
ernel resist> - use the mtd-device driver to mount root fs on the same fl=
ash some> address later>> Is this the right way ?>>> Regards> Georg>>>>>>=
> -----------------------------------------------------------------------=
------------------> -----------------------------------------------------=
------------------------------------> Forschungszentrum J=C3=BClich GmbH>=
 52425 J=C3=BClich>> Sitz der Gesellschaft: J=C3=BClich> Eingetragen im H=
andelsregister des Amtsgerichts D=C3=BCren Nr. HR B 3498> Vorsitzende des=
 Aufsichtsrats: MinDirig'in B=C3=A4rbel Brumme-Bothe> Gesch=C3=A4ftsf=C3=BC=
hrung: Prof. Dr. Achim Bachem (Vorsitzender), Dr. Ulrich Krafft (stellv.>=
 Vorsitzender)> ---------------------------------------------------------=
--------------------------------> ---------------------------------------=
--------------------------------------------------> _____________________=
__________________________> Linuxppc-embedded mailing list> Linuxppc-embe=
dded@ozlabs.org> https://ozlabs.org/mailman/listinfo/linuxppc-embedded
>
> _________________________________________________________________
> MSN =E4=B8=AD=E6=96=87=E7=BD=91=EF=BC=8C=E6=9C=80=E6=96=B0=E6=97=B6=E5=B0=
=9A=E7=94=9F=E6=B4=BB=E8=B5=84=E8=AE=AF=EF=BC=8C=E7=99=BD=E9=A2=86=E8=81=9A=
=E9=9B=86=E9=97=A8=E6=88=B7=E3=80=82
> http://cn.msn.com


=0A=0A-------------------------------------------------------------------------=

----------------=0A-----------------------------------------------------------=

------------------------------=0AForschungszentrum J=C3=BClich GmbH=0A52425 J=C3=BClich=

=0A=0ASitz der Gesellschaft: J=C3=BClich=0AEingetragen im Handelsregister des Amtsgeri=

chts D=C3=BCren Nr. HR B 3498=0AVorsitzende des Aufsichtsrats: MinDirig'in B=C3=A4rbel=

 Brumme-Bothe=0AGesch=C3=A4ftsf=C3=BChrung: Prof. Dr. Achim Bachem (Vorsitzender), Dr.=

 Ulrich Krafft (stellv. =0AVorsitzender)=0A-------------------------------------=

----------------------------------------------------=0A-----------------------=

------------------------------------------------------------------=0A

RE: Bootloader & Flash

[MingLiu]

[-- Attachment #1: Type: text/plain, Size: 727 bytes --]


Hi,
> - I have download the zImage.elf via the EDK flash loader> - The flash loader creates a bootloader, this is also running on start up :)
What you need to store in flash memory, is not the .elf file. Before you use EDK flash loader to burn your linux kernel in flash, .elf file should be transfered into .srec file, just like the below reminds you: SREC line is corrupted. 
 
> But ... It stops with an error-message after a few seconds:> > EDK Bootloader:> Bootloader: Processed (0x)000000b2 S-recordsERROR: SREC line is corrupted> > What now ?
Hopefully it helps. 
 
BR
Ming
_________________________________________________________________
Windows Live Spaces 中最年轻的成员！
http://miaomiaogarden2007.spaces.live.com/

[-- Attachment #2: Type: text/html, Size: 1005 bytes --]

Re: Bootloader & Flash

[schardt]

Argl :)

The error was so ... simple.
The Flash device is broken. I take a new MiniModul and all things are
running.

Thanks a lot
Georg

MingLiu wrote:
> Hi,
>
> > - I have download the zImage.elf via the EDK flash loader
> > - The flash loader creates a bootloader, this is also running on
> start up :)
>
> What you need to store in flash memory, is not the .elf file. Before
> you use EDK flash loader to burn your linux kernel in flash, .elf file
> should be transfered into .srec file, just like the below reminds you:
> SREC line is corrupted.
>
>
> > But ... It stops with an error-message after a few seconds:
> >
> > EDK Bootloader:
> > Bootloader: Processed (0x)000000b2 S-recordsERROR: SREC line is
> corrupted
> >
> > What now ?
>
> Hopefully it helps.
>
> BR
> Ming
>
> -----------------------------------------------------------------------=
-
> =D3=C3 Windows Live Spaces =D5=B9=CA=BE=B8=F6=D0=D4=D7=D4=CE=D2=A3=AC=D3=
=EB=BA=C3=D3=D1=B7=D6=CF=ED=C9=FA=BB=EE=A3=A1 =C1=CB=BD=E2=B8=FC=B6=E0=D0=
=C5=CF=A2=A3=A1
> <http://spaces.live.com/?page=3DHP>



-------------------------------------------------------------------------=
----------------
-------------------------------------------------------------------------=
----------------
Forschungszentrum J=A8=B9lich GmbH
52425 J=A8=B9lich

Sitz der Gesellschaft: J=A8=B9lich
Eingetragen im Handelsregister des Amtsgerichts D=A8=B9ren Nr. HR B 3498
Vorsitzende des Aufsichtsrats: MinDirig'in B"arbel Brumme-Bothe
Gesch"aftsf=A8=B9hrung: Prof. Dr. Achim Bachem (Vorsitzender), Dr. Ulrich=
 Krafft (stellv.=20
Vorsitzender)
-------------------------------------------------------------------------=
----------------
-------------------------------------------------------------------------=
----------------

RE: Bootloader & Flash

[MingLiu]

[-- Attachment #1: Type: text/plain, Size: 2098 bytes --]


Sometimes the simplest error is the most diffucult one to be found. :)
 
Have fun.
 
BR
Ming
 
> Date: Fri, 9 Nov 2007 15:16:23 +0100> From: g.schardt@fz-juelich.de> To: eemingliu@hotmail.com> CC: linuxppc-embedded@ozlabs.org> Subject: Re: Bootloader & Flash> > Argl :)> > The error was so ... simple.> The Flash device is broken. I take a new MiniModul and all things are> running.> > Thanks a lot> Georg> > MingLiu wrote:> > Hi,> >> > > - I have download the zImage.elf via the EDK flash loader> > > - The flash loader creates a bootloader, this is also running on> > start up :)> >> > What you need to store in flash memory, is not the .elf file. Before> > you use EDK flash loader to burn your linux kernel in flash, .elf file> > should be transfered into .srec file, just like the below reminds you:> > SREC line is corrupted.> >> >> > > But ... It stops with an error-message after a few seconds:> > >> > > EDK Bootloader:> > > Bootloader: Processed (0x)000000b2 S-recordsERROR: SREC line is> > corrupted> > >> > > What now ?> >> > Hopefully it helps.> >> > BR> > Ming> >> > ------------------------------------------------------------------------> > 用 Windows Live Spaces 展示个性自我，与好友分享生活！ 了解更多信息！> > <http://spaces.live.com/?page=HP>> > > > -----------------------------------------------------------------------------------------> -----------------------------------------------------------------------------------------> Forschungszentrum Jülich GmbH> 52425 Jülich> > Sitz der Gesellschaft: Jülich> Eingetragen im Handelsregister des Amtsgerichts Düren Nr. HR B 3498> Vorsitzende des Aufsichtsrats: MinDirig'in B"arbel Brumme-Bothe> Gesch"aftsführung: Prof. Dr. Achim Bachem (Vorsitzender), Dr. Ulrich Krafft (stellv. > Vorsitzender)> -----------------------------------------------------------------------------------------> -----------------------------------------------------------------------------------------
_________________________________________________________________
Windows Live Spaces 中最年轻的成员！
http://miaomiaogarden2007.spaces.live.com/

[-- Attachment #2: Type: text/html, Size: 2852 bytes --]