Where to store the Linux kernel.

Where to store the Linux kernel.

[Ming Liu]

Hello everyone,
Now I am doing a embedded linux project on the board of ML403(virtex4, 
ppc405). In my product, I cannot use CF card. So I have to use flash memory 
to store the Linux kernel. Except for the Linux kernel, also I have to 
store the hardware information of the system.bit file. I know in ml403 
board, there are two types of flash. One is Platform Flash and the other is 
Linear Flash. Can anyone tell me how can I arrange my hardware .bit file 
and Linux kernel zImage.elf file and store them in the flash provided in 
the board? Can I put both of them in the Platform Flash chip? Thanks for 
the telling. 

Regards
Ming

_________________________________________________________________
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Re: Where to store the Linux kernel.

[Frank D Lombardo]

Ming,

I am using an ML403 in a similar way. I have the download.bit file
stored in platform flash. U-Boot, the Linux Kernel and initrd are stored
in the linear flash.

Frank


Ming Liu wrote:
> Hello everyone,
> Now I am doing a embedded linux project on the board of ML403(virtex4, 
> ppc405). In my product, I cannot use CF card. So I have to use flash memory 
> to store the Linux kernel. Except for the Linux kernel, also I have to 
> store the hardware information of the system.bit file. I know in ml403 
> board, there are two types of flash. One is Platform Flash and the other is 
> Linear Flash. Can anyone tell me how can I arrange my hardware .bit file 
> and Linux kernel zImage.elf file and store them in the flash provided in 
> the board? Can I put both of them in the Platform Flash chip? Thanks for 
> the telling. 
>
> Regards
> Ming
>
> _________________________________________________________________
> 与联机的朋友进行交流，请使用 MSN Messenger:  http://messenger.msn.com/cn  
>
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded

Re: Where to store the Linux kernel.

[Tony Lee]

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I used the VP20 before.   You can use the Xilinx's tool to generate the .ace
file from the .elf, bit stream, etc and put it in the CF.

It is very simple ponce you do it once and Xilinx has very good app note to
tell you exactly what need to do.

-Tony

On 7/27/06, Frank D Lombardo <lombardo@mdivac.com> wrote:
>
> Ming,
>
> I am using an ML403 in a similar way. I have the download.bit file
> stored in platform flash. U-Boot, the Linux Kernel and initrd are stored
> in the linear flash.
>
> Frank
>
>
> Ming Liu wrote:
> > Hello everyone,
> > Now I am doing a embedded linux project on the board of ML403(virtex4,
> > ppc405). In my product, I cannot use CF card. So I have to use flash
> memory
> > to store the Linux kernel. Except for the Linux kernel, also I have to
> > store the hardware information of the system.bit file. I know in ml403
> > board, there are two types of flash. One is Platform Flash and the other
> is
> > Linear Flash. Can anyone tell me how can I arrange my hardware .bit file
> > and Linux kernel zImage.elf file and store them in the flash provided in
> > the board? Can I put both of them in the Platform Flash chip? Thanks for
> > the telling.
> >
> > Regards
> > Ming
> >
> > _________________________________________________________________
> > 与联机的朋友进行交流，请使用 MSN Messenger:  http://messenger.msn.com/cn
> >
> > _______________________________________________
> > Linuxppc-embedded mailing list
> > Linuxppc-embedded@ozlabs.org
> > https://ozlabs.org/mailman/listinfo/linuxppc-embedded
>
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded




-- 
-Tony
Having fun with FPGA, gige, mpeg, snmp, ppc, Linux

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Re: Where to store the Linux kernel.

[Frank D Lombardo]

Ming,

I have the XPS generated bootloader in bram. The bram is located at the
reset vector. The XPS bootloader loads U-Boot s-records from linear
flash into ram and then executes it. U-Boot can then handle booting the
Linux Kernel image (uImage, not zImage.elf) from linear flash.

XPS can program the linear flash for you. In XPS 8.1 the menu option is
"Device Configuration | Program Flash Memory". I use this to program the
U-Boot s-records and the Kernel uImage to linear flash.

I have not tried to put both the download.bit and Kernel uImage into
platform flash, so I can't comment on that.

Frank

Ming Liu wrote:
> Dear Frank,
>
>> I am using an ML403 in a similar way. I have the download.bit file
>> stored in platform flash. U-Boot, the Linux Kernel and initrd are stored
>> in the linear flash.
> That's just what I want! Can you say something in detail on how to put
> the bootloader and the kernel image in the linear flash in XPS? I know
> that XPS can generate a bootloader automatically. So can we use that
> one instead of U-boot?
> By the way, can we put both the download.bit and the Linux image
> zImage.elf in the platform flash and boot the system from here? If
> yes, then in the real product, I need only one platform flash to store
> my design then.
> Thanks for your telling.
>
> Regards
> Ming
>
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