[U-Boot] Non-experimental U-Boot compilation

[U-Boot] Non-experimental U-Boot compilation

[sandeep suresh]

Dear all,
???? I am using the AT91SAM9G20EK kit and want to port Linux on this. I am using 
the AT91SAM9260ek configuration as it seems the closest. The problem is after 
building the U-boot with the sources for this board, generating the .bin, 
loading and a power on reset (POR), there isn't a command prompt exposed 
(u-boot>). After POR, 1 1 2 1 1 2 continuosly prints on the hyperterminal. I 
read from AT91.com that this is the expected behavior for the demo version. What 
is rge procedure to get the prompt ? Are there any separate configuration 
settings?
Please help as I am stuck.
Thanks & regards
Sandeep.

[U-Boot] Non-experimental U-Boot compilation

[Reinhard Meyer]

Dear sandeep suresh,
> Dear all,
>      I am using the AT91SAM9G20EK kit and want to port Linux on this. I am using 
> the AT91SAM9260ek configuration as it seems the closest. The problem is after 
> building the U-boot with the sources for this board, generating the .bin, 
> loading and a power on reset (POR), there isn't a command prompt exposed 
> (u-boot>). After POR, 1 1 2 1 1 2 continuosly prints on the hyperterminal. I 
> read from AT91.com that this is the expected behavior for the demo version. What 
> is rge procedure to get the prompt ? Are there any separate configuration 
> settings?
> Please help as I am stuck.

Try to define CONFIG_AT91SAM9G20EK in the board configuration ;)

Reinhard

[U-Boot] Non-experimental U-Boot compilation

[Reinhard Meyer]

Dear sandeep suresh,
> Dear Reinhard Meyer,
> Appreciate your quick response. I had done this earlier
> before posting this mail, but with the same problem:
> step 1) export PATH=$PATH:/work/arm/4.3.2/bin
> step 2) make distclean
> step 3) make AT91SAM9260ek_config
> step 4)make
> Can you please help me further, please.

I can't help you with the following tasks:

1. find out what are the differences between 9260-EK and 9G20-EK ?

2. find out what subtle differences might exist between 9260 and 9G20 SoC?

It might be more than "AT91SAM9G20 = 400MHz version of  AT91SAM9260"...

And I can't see in above transcript where you set the #define I mentioned.

"#ifdef CONFIG_AT91SAM9G20EK" exists in various places in the source, but
I do not know if that ever was a really working port or just someone
starting on it.

Reinhard

PS: it is mandatory to post replies to the mailing list as well!

[U-Boot] Non-experimental U-Boot compilation

[sandeep suresh]

Dear Reinhard Meyer & All,
?????????????? Apology for not sending to the mailing list; forwarding the same 
to the mailing list. There is already a #define CONFIG_AT91SAM9260ek 1 in 
/include/configs/at91sam9260ek.h. I will check further. 

Please help me if you have any clue further.
Thanks & regards
Sandeep Suresh.




________________________________
From: Reinhard Meyer <u-boot@emk-elektronik.de>
To: sandeep suresh <sandeep.suresh@yahoo.co.in>; u-boot <u-boot@lists.denx.de>
Sent: Tue, 24 August, 2010 1:50:24 PM
Subject: Re: [U-Boot] Non-experimental U-Boot compilation

Dear sandeep suresh,
> Dear Reinhard Meyer,
> Appreciate your quick response. I had done this earlier
> before posting this mail, but with the same problem:
> step 1) export PATH=$PATH:/work/arm/4.3.2/bin
> step 2) make distclean
> step 3) make AT91SAM9260ek_config
> step 4)make
> Can you please help me further, please.

I can't help you with the following tasks:

1. find out what are the differences between 9260-EK and 9G20-EK ?

2. find out what subtle differences might exist between 9260 and 9G20 SoC?

It might be more than "AT91SAM9G20 = 400MHz version of? AT91SAM9260"...

And I can't see in above transcript where you set the #define I mentioned.

"#ifdef CONFIG_AT91SAM9G20EK" exists in various places in the source, but
I do not know if that ever was a really working port or just someone
starting on it.

Reinhard

PS: it is mandatory to post replies to the mailing list as well!

[U-Boot] Non-experimental U-Boot compilation

[Reinhard Meyer]

Dear sandeep suresh,
> Dear Reinhard Meyer & All,
>                Apology for not sending to the mailing list; forwarding
> the same to the mailing list. There is already a #define
> CONFIG_AT91SAM9260ek 1 in /include/configs/at91sam9260ek.h. I will check
> further.

#define CONFIG_AT91SAM9G20EK !!!

I think you would have to define this additionally to or instead of.

If that does not help, you have to investigate yourself what
the diffeences are.

Reinhard

[U-Boot] Non-experimental U-Boot compilation

[sandeep suresh]

Dear All,
????? After erasing the data flash, NAnd flash and installing the Bootstrap 
loader and U-Boot, the problem is solved. I have a U-Boot prompt using which I 
should be able to proceed further. 

Before building the Linux kernel and file system, I want to experiment with 
prebuilt images of kernel & FS. I have got? 

a) Linux image --> Linux-2.6.27-at91-exp.3-at91sam9g20ek.bin
b) File system image --> genericfs.arm.nofpu.jffs2.

How do I install these image into the evaluation kit? The website 
www.linux4sam.org
gives instructions to load ?the linux-2.6.27.img and samp-ramdisk.gz images. Is 
it necessary for any conversion?
Thanks & regards
Sandeep Suresh




________________________________
From: "Xu, Hong" <Hong.Xu@atmel.com>
To: sandeep.suresh at yahoo.co.in
Cc: u-boot at lists.denx.de
Sent: Tue, 24 August, 2010 6:23:46 PM
Subject: Re: Non-experimental U-Boot compilation


Hi,

> Dear all,
>????? I am using the AT91SAM9G20EK kit and want to port Linux on this.

Actually Atmel has already done this, see http://www.linux4sam.org

> the AT91SAM9260ek configuration as it seems the closest. The problem is after
> building the U-boot with the sources for this board, generating the .bin,
> loading and a power on reset (POR), there isn't a command prompt exposed
> (u-boot>). After POR, 1 1 2 1 1 2 continuosly prints on the hyperterminal. I
> read from AT91.com that this is the expected behavior for the demo version.

Yes, this is the expected behaviour for the demo package. When you see this, it 
means you do not boot from the media where you burn your U-Boot into.

> What? is rge procedure to get the prompt ? Are there any separate 
configuration
> settings?

AT91SAM9G20EK are well supported by both mainline code and Atmel's current 
binary. ( u-boot 1.3.4, a little bit old)
For detailed steps to run U-Boot/Linux on your board, still, goto 
http://www.linux4sam.org

BR,
Eric 

[U-Boot] Non-experimental U-Boot compilation

[Xu, Hong]

Hi,

> Dear all,
>      I am using the AT91SAM9G20EK kit and want to port Linux on this.

Actually Atmel has already done this, see http://www.linux4sam.org

> the AT91SAM9260ek configuration as it seems the closest. The problem is after 
> building the U-boot with the sources for this board, generating the .bin, 
> loading and a power on reset (POR), there isn't a command prompt exposed 
> (u-boot>). After POR, 1 1 2 1 1 2 continuosly prints on the hyperterminal. I 
> read from AT91.com that this is the expected behavior for the demo version.

Yes, this is the expected behaviour for the demo package. When you see this, it means you do not boot from the media where you burn your U-Boot into.

> What  is rge procedure to get the prompt ? Are there any separate configuration 
> settings?

AT91SAM9G20EK are well supported by both mainline code and Atmel's current binary. ( u-boot 1.3.4, a little bit old)
For detailed steps to run U-Boot/Linux on your board, still, goto http://www.linux4sam.org

BR,
Eric