I think you want to load the kernel to memory at 0x00000000, even though the
u-boot load address is set to 0x8000 - my kernel, which I load to memory at
0x80000000 because that's where my SDRAM is, looks like this:
Load address: 0x80000000
Loading: #################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
##########################
done
Bytes transferred = 2128612 (207ae4 hex)
## Booting kernel from Legacy Image at 80000000 ...
Image Name: Linux-2.6.29-rc3-omap1
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2128548 Bytes = 2 MB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK
Starting kernel ...
Uncompressing
Linux...........................................................................................................................................
done, booting the kernel.
Rick
-----Original Message-----
From: u-boot-boun...@lists.denx.de [mailto:u-boot-boun...@lists.denx.de] On
Behalf Of Marek Vasut
Sent: Wednesday, April 28, 2010 2:35 PM
To: u-boot@lists.denx.de
Cc: ogara
Subject: Re: [U-Boot] trying to bring linux-2.6.32.3 from RAM?
Dne St 28. dubna 2010 20:50:35 ogara napsal(a):
> Hi All,
> I am trying to bring linux from RAM. I have compiled the kernel and
> created uImage. I bring the image over tftp into the memory and then
> execute bootm memaddress. Unfortunately here is the output from my command
> line:
>
> tftp 0x8000 ipaddress:uImage
> Using egiga0 device
> TFTP from server ipaddress; our IP address is ipaddress; sending
> through gateway ipaddress Filename 'uImage'.
> Load address: 0x8000
> Loading: #################################################################
> #################################################################
> #################################################################
> ###################
> done
> Bytes transferred = 3132020 (2fca74 hex) bootm 0x8000 ## Booting
> kernel from Legacy Image at 00008000 ...
> Image Name: Linux-2.6.32.3
> Created: 2010-04-28 18:44:34 UTC
> Image Type: ARM Linux Kernel Image (uncompressed)
> Data Size: 3131956 Bytes = 3 MB
> Load Address: 00008000
> Entry Point: 00008000
> Verifying Checksum ... OK
> XIP Kernel Image ... OK
> OK
>
> Starting kernel ...
>
> undefined instruction
> pc : [<00008008>] lr : [<00647d1c>]
> sp : 005ffce8 ip : 000008e0 fp : 000006fc
> r10: 00724db0 r9 : 005fff90 r8 : 005fffcc
> r7 : 00000002 r6 : 0072372d r5 : 00000154 r4 : 00000000
> r3 : 00008000 r2 : 00000100 r1 : 000006fc r0 : 0001c200
> Flags: nZCv IRQs off FIQs off Mode SVC_32 Resetting CPU ...
>
> Now, the image is good for sure because I do not have issues bringing
> this image from the hard drive. Do I need anything else (ftd or
> ramdisc) to boot from RAM or the procedure presented is correct?
> my bootargs are:
> bootargs=console ttyS0,115200 root /dev/ram rw
>
> Thank you for your help,
> Ogi
Hi, the image is probably corrupted ? Also, why do you load it to 0x8000 ? It's
relocated anyway, but this way it has to be relocated twice)
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