[U-Boot-Users] 2.6.12 with u-boot-1.1.2 on versatile

[U-Boot-Users] 2.6.12 with u-boot-1.1.2 on versatile

[Shakthi Kannan]

Greetings!

System details:
Board: Versatile-ARM926Ej-S
Cross-toolchain: 3.4.3
Linux kernel: 2.6.12
u-boot: 1.1.2

I have been able to successfully cross-compile u-boot,
program it to NOR flash, and run it from the SDRAM.

I have also cross-compiled the kernel to create the
vmlinux file. I have used the config file provided in
arm.com site for this board:

http://www.arm.com/linux/linux_download.html

I then created uImage using:

# arm-linux-objcopy -O binary -R .note -R .comment -S
vmlinux linux.bin
# gzip linux.bin
# ./mkimage -A arm -O linux -T kernel -C gzip -a
0xc0008000 -e 0xc0008000 -n "Linux Kernel Image" -d
linux.bin.gz uImage

The uImage is programmed at 0x36000000 in NOR flash.
But, When I try to run the kernel from u-boot it hangs
at the following:

## Booting image at 36000000 ...
   Image Name: Linux kernel image
   Image Type: ARM Linux Kernel Image (gzip
compressed)
   Data Size: 1112206 Bytes = 1.1 MB
   Load Address: c0008000
   Entry Point: c0008000
   Uncompressing Kernel Image ... OK

Starting kernel ...

When I looked through the debugger (Lauterbach), it
hung at a virtual address inside panic.c.

If anyone can tell me as to what I am doing wrong, and
how I can get the kernel up and running on this board,
it will be really helpful.

Thanks,

K Shakthi

--
proudly anti-micro$oft
------------------------------------------------------------
Shakthi Kannan, MS
Software Engineer, Specsoft (Hexaware Technologies)
[E]: shaks at shakthimaan.com           [M]: (91) 98407-87007
[W]: http://www.shakthimaan.com      [L]: Chennai, India
------------------------------------------------------------

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[U-Boot-Users] Re: 2.6.12 with u-boot-1.1.2 on versatile

[Catalin Marinas]

Shakthi Kannan <shakthimaan@yahoo.com> wrote:
> # ./mkimage -A arm -O linux -T kernel -C gzip -a
> 0xc0008000 -e 0xc0008000 -n "Linux Kernel Image" -d
> linux.bin.gz uImage

Try "-a 0x7fc0 -e 0x8000".

> The uImage is programmed at 0x36000000 in NOR flash.
> But, When I try to run the kernel from u-boot it hangs
> at the following:

You should run "cp 0x36000000 0x7fc0 <size>" before "bootm".

-- 
Catalin

[U-Boot-Users] Re: 2.6.12 with u-boot-1.1.2 on versatile

[Wolfgang Denk]

Dear Catalin,

in message <tnxoe96d7zy.fsf@arm.com> you wrote:
> Shakthi Kannan <shakthimaan@yahoo.com> wrote:
> > # ./mkimage -A arm -O linux -T kernel -C gzip -a
> > 0xc0008000 -e 0xc0008000 -n "Linux Kernel Image" -d
> > linux.bin.gz uImage
> 
> Try "-a 0x7fc0 -e 0x8000".
> 
> > The uImage is programmed at 0x36000000 in NOR flash.
> > But, When I try to run the kernel from u-boot it hangs
> > at the following:
> 
> You should run "cp 0x36000000 0x7fc0 <size>" before "bootm".

Sounds like vodoo programming to me. Or  do  you  have  any  rational
explanation why these bogus statements should help?

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
An optimist believes we live in the best world possible; a  pessimist
fears this is true.

[U-Boot-Users] Re: 2.6.12 with u-boot-1.1.2 on versatile

[Catalin Marinas]

Wolfgang Denk <wd@denx.de> wrote:
> in message <tnxoe96d7zy.fsf@arm.com> you wrote:
>> You should run "cp 0x36000000 0x7fc0 <size>" before "bootm".
>
> Sounds like vodoo programming to me. Or  do  you  have  any  rational
> explanation why these bogus statements should help?

True, but that's how I managed to get it working. Is bootm supposed to
also copy the image from flash before starting it? I had the
impression that it doesn't do this.

Catalin

[U-Boot-Users] Re: 2.6.12 with u-boot-1.1.2 on versatile

[Wolfgang Denk]

In message <tnxackppyqc.fsf@arm.com> you wrote:
>
> True, but that's how I managed to get it working. Is bootm supposed to
> also copy the image from flash before starting it? I had the
> impression that it doesn't do this.

May I suggest to read the documentation before relying on
impressions?

Yes, of course it does that. Guess what  the  meaning  of  the  "load
address" and "entry point" parameters is?

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
How come everyone's going so slow if it's called rush hour?

AW: [U-Boot-Users] 2.6.12 with u-boot-1.1.2 on versatile

[David Grab]

Hi!

if you are in virtual address space, then you should have console output on
the serial port. So it looks for me that your kernel configuration is
missing the command line parameter. I had a similar problem with my custom
board. It run in a kernel panic because of a missing root file system and
rebooted after 3 minutes.

My suggest to you configure in u-boot the command line parameter to pass it
trough the kernel. For that you need to edit your custom board file in
u-boot\include\configs\<yourboard>.h with following:

#define CONFIG_BOOTARGS		"console=ttyS1,115200 root=/dev/ram rw"

The console definition is for the console output. Configure ttyS0 for UART0
or ttyS1 for UART1.

Or you configure your kernel command line parameter in
linuxkernel\arch\arm\configs\<yourboard>_defconfig

CONFIG_CMDLINE="console=ttyS1,115200"

Then you should have console output and could see where your linux kernel
hangs.

Best regards,

David

-----Urspr?ngliche Nachricht-----
Von: u-boot-users-admin at lists.sourceforge.net
[mailto:u-boot-users-admin at lists.sourceforge.net]Im Auftrag von Shakthi
Kannan
Gesendet: Mittwoch, 13. Juli 2005 16:45
An: u-boot-users at lists.sourceforge.net
Betreff: [U-Boot-Users] 2.6.12 with u-boot-1.1.2 on versatile


Greetings!

System details:
Board: Versatile-ARM926Ej-S
Cross-toolchain: 3.4.3
Linux kernel: 2.6.12
u-boot: 1.1.2

I have been able to successfully cross-compile u-boot,
program it to NOR flash, and run it from the SDRAM.

I have also cross-compiled the kernel to create the
vmlinux file. I have used the config file provided in
arm.com site for this board:

http://www.arm.com/linux/linux_download.html

I then created uImage using:

# arm-linux-objcopy -O binary -R .note -R .comment -S
vmlinux linux.bin
# gzip linux.bin
# ./mkimage -A arm -O linux -T kernel -C gzip -a
0xc0008000 -e 0xc0008000 -n "Linux Kernel Image" -d
linux.bin.gz uImage

The uImage is programmed at 0x36000000 in NOR flash.
But, When I try to run the kernel from u-boot it hangs
at the following:

## Booting image at 36000000 ...
   Image Name: Linux kernel image
   Image Type: ARM Linux Kernel Image (gzip
compressed)
   Data Size: 1112206 Bytes = 1.1 MB
   Load Address: c0008000
   Entry Point: c0008000
   Uncompressing Kernel Image ... OK

Starting kernel ...

When I looked through the debugger (Lauterbach), it
hung at a virtual address inside panic.c.

If anyone can tell me as to what I am doing wrong, and
how I can get the kernel up and running on this board,
it will be really helpful.

Thanks,

K Shakthi

--

proudly anti-micro$oft
------------------------------------------------------------
Shakthi Kannan, MS
Software Engineer, Specsoft (Hexaware Technologies)
[E]: shaks at shakthimaan.com           [M]: (91) 98407-87007
[W]: http://www.shakthimaan.com      [L]: Chennai, India
------------------------------------------------------------

__________________________________________________
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Tired of spam?  Yahoo! Mail has the best spam protection around
http://mail.yahoo.com


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AW: [U-Boot-Users] 2.6.12 with u-boot-1.1.2 on versatile

[Wolfgang Denk]

In message <000001c58847$041ef380$f201a8c0@SN7606> you wrote:
> 
> if you are in virtual address space, then you should have console output on
> the serial port. So it looks for me that your kernel configuration is
> missing the command line parameter. I had a similar problem with my custom

This is a Linux issue (hint, hint).

> board. It run in a kernel panic because of a missing root file system and
> rebooted after 3 minutes.
> 
> My suggest to you configure in u-boot the command line parameter to pass it
> trough the kernel. For that you need to edit your custom board file in
> u-boot\include\configs\<yourboard>.h with following:

You never have to edit any file just to set or change an  environment
variable.That's what the "setevn"/ "saveenv" commands are for.

And BTW: the file name you listed contains several illegal  backslash
escape sequences.