[U-Boot] working with loadb & bootm on u-boot-v2 for imx27ads Board

[Lejin K Joy]

Hi All,

I am successfully able to get the U-boot prompt on my board based on
IMX27ads. 

However I am facing the following issue. Please help me out :

I want to load the Linux Kernel Zimage on to RAM. As per the documentation
we have used the following command to load zImage using Kermit protocol.

" U-boot-v2> loadb -c zImage "

(Also tried " U-boot-v2> loadb -f zImage ")

Which successfully downloads zimage to the file with default offset set as
0x00000000.....

a) But I am not able to understand to which location in RAM this image is
written to? b) Please let me know how exactly to load kernel image to
specific location on RAM?
c) Also how we can change the default location since the user is not given
an option to mention the address.
d) How to load the file " zImage" to RAM?

I was intending to do the following steps :

	>> loadb 0x100000 zimage
	>> loadb 0x1000000 ramdisk.gz 
	>> bootm 0x100000 0x1000000

Please help me out as I am using U-boot-V2 for the first time.

I am attaching the loadb.c file which I am using currently. Are there any
patches 

Waiting for your responses.

Thanks,
Lejin

-----Original Message-----
From: u-boot-bounces at lists.denx.de [mailto:u-boot-bounces at lists.denx.de] On
Behalf Of Lejin K Joy
Sent: Tuesday, September 23, 2008 9:49 PM
To: 'Robert Schwebel'; 'Sascha Hauer'
Cc: u-boot at lists.denx.de
Subject: Re: [U-Boot] u-boot-v2 for imx27 Board


Hi,

I was running U-boot-v2 on imx27ads board and it's hanging up on the
terminal after the following display. 

--------
U-Boot 2.0.0-rc5-git (Sep 22 2008 - 23:05:39)

Board: Freescale i.MX27 ADS
---------

Also I am using Intel P30 strata flash. When the MTD cfi driver is enabled
in the menuconfig U-boot gives the following message and hangs up.

------------
U-Boot 2.0.0-rc5-git (Sep 22 2008 - 23:05:39)

Board: Freescale i.MX27 ADS
cfi_probe: cfi_flash base: 0xc0000000 size: 0x02000000
------------

Please provide your suggestions.


Thanks,
Lejin


-----Original Message-----
From: Robert Schwebel [mailto:r.schwebel at pengutronix.de] 
Sent: Friday, August 22, 2008 12:17 AM
To: Lejin K Joy
Cc: 'Sascha Hauer'; u-boot at lists.denx.de
Subject: Re: [U-Boot] u-boot for imx27 Board

Hi,

On Thu, Aug 21, 2008 at 09:43:53PM +0530, Lejin K Joy wrote:
> Could you kindly suggest me the arm cross compiler's link /name using
> which you have compiled the u-boot. I am using
> obsolete-gcc-3.3.2.tar.bz2 compiler. 

We usually build the MX27 stuff with a generic arm-v4 cross toolchain,
built with OSELAS.Toolchain-1.1.1. You can compile such a toolchain
yourself easily with ptxdist, look here for the details:

http://www.pengutronix.de/oselas/toolchain/index_en.html

rsc
-- 
 Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de
 Pengutronix - Linux Solutions for Science and Industry
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     Hannoversche Str. 2, 31134 Hildesheim, Germany
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