[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [microblaze-uclinux] Booting the petalinux kernel with FS-boot

Hello,
my board has no ethernet so I have to do it all over the serial wire. I can confirm the load time of 10 min. as Gerd wrote. Next the process stalls as can be seen in the display dump below. A difference between FS-boot and U-boot is that U-boot can pass a command line to the kernel. FS-boot can not.
However in the menuconfig there is an option to pass a "static" command line which is merged somehow in the kernel image "image.srec" or "image.bin". I haven't learned the details yet. Is there someone who knows a valid command string? Is an empty line "" sufficient or should it be someting like "boot".
At this moment I have the feeling that it should be possible with FS-boot. This is confirmed by Gerd, so my problem is seems to be focussed when the kernel tries to start. uClinux tries to relocate "fsrom" to a position at the end of the kernel "klimit". However, it thinks that the size of fsrom is zero, but this is definitly not the case. 

So any help is still welcome.

Best regards,
Cor
----- Original Message ----- From: "Stephane Rousseau" <stephaner@xxxxxxxxx> 
To: <microblaze-uclinux@xxxxxxxxxxxxxx>
Sent: Friday, October 05, 2007 2:02 PM
Subject: Re: [microblaze-uclinux] Booting the petalinux kernel with FS-boot



Hi,

If your board has ethernet, you can start with FS-boot, then transfer
u-boot.srec via serial line. And the use a tftp server to send your
image.ub with Ethernet to your board.

Regards,

Stephane

On 10/5/07, Theidel Gerd <gerd.theidel@xxxxxx> wrote:

It is possible to start the image.srec directly with FS-boot,
I just triued it to be sure (but takes about 10 min over serial line).
Make sure that your configured Kernel Image does not need any components
like Flash, etc... that you don't have in your design.

Regards,
Gerd



-----Original Message-----
From: owner-microblaze-uclinux@xxxxxxxxxxxxxx
[mailto:owner-microblaze-uclinux@xxxxxxxxxxxxxx] On Behalf Of Cor Venner
Sent: Mittwoch, 3. Oktober 2007 18:09
To: microblaze-uclinux@xxxxxxxxxxxxxx
Subject: [microblaze-uclinux] Booting the petalinux kernel with FS-boot

Is there someone who can help me with this:

I'm trying to run Petalinux on a very basic system with only external
SDRAM and a serial port. First I tried to download U-boot with FS-boot.
U-boot displays its position into memory, then it falls back to the
FS-Boot loader (it's like the board is reset).  So I tried downloading
the kernel image directly with FS-boot.

Is it possible to boot the kernel with FS-boot?

I have tried this (image.srec) and got the following result:

=================================================
FS-BOOT First Stage Bootloader (c) 2006 PetaLogix
=================================================
FS-BOOT: System initialisation completed.
FS-BOOT: No existing image in FLASH.  Starting image download.
FS-BOOT: Waiting for SREC image....
FS-BOOT: Image download successful.
FS-BOOT: Warning image location differ from default boot location. Image
will no t boot automatically after POR.
FS-BOOT: Press 'n' to boot old image.
FS-BOOT: Use new image.
FS-BOOT: Booting image...
Found romfs @ 0x200e408c (0x00000000)
#### klimit 200f6000 ####
Moving 0x00000000 bytes from 0x200e408c to 0x200f523c New klimit:
0x200f6000


Notice that romfs size is 0. I assume the the romfs is a part of
"image.srec". According to the documentation it is described as "The
Linux
kernel and root filesystem image in SREC format". So how can the size be
0.

Is there someone who can help me.

Best regards, Cor Venner

___________________________
microblaze-uclinux mailing list
microblaze-uclinux@xxxxxxxxxxxxxx
Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
Mailing List Archive :
http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/


___________________________
microblaze-uclinux mailing list
microblaze-uclinux@xxxxxxxxxxxxxx
Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
Mailing List Archive : http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/ 



___________________________
microblaze-uclinux mailing list
microblaze-uclinux@xxxxxxxxxxxxxx
Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
Mailing List Archive : http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/ 




___________________________
microblaze-uclinux mailing list
microblaze-uclinux@xxxxxxxxxxxxxx
Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
Mailing List Archive : http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/