The question about the fail at the begin of linux on MPC8360E.

Medve Emilian-EMMEDVE1 Emilian.Medve at freescale.com
Fri Nov 2 23:55:12 EST 2007


Hi there,


You need a device tree. The defaut one is arch/powerpc/boot/dts/mpc836x_mds.dts. You need the DTC (Device Tree Compiler) from here http://jdl.com/git_repos/?p=dtc.git;a=summary. This should be enough to give you some reading pointers.


Cheers,
Emil.


> -----Original Message-----
> From: 
> linuxppc-embedded-bounces+emilian.medve=freescale.com at ozlabs.o
> rg 
> [mailto:linuxppc-embedded-bounces+emilian.medve=freescale.com@
> ozlabs.org] On Behalf Of ??
> Sent: Thursday, November 01, 2007 10:09 PM
> To: linuxppc-embedded at ozlabs.org
> Subject: The question about the fail at the begin of linux on 
> MPC8360E.
> 
> Hi,friends,
> Thanks.
> 
> We boot the linux-2.6.22 on MPC8360 board, it failed, follow 
> is the output
> information. we just only success on linux-2.6.11, but fail 
> on linux-2.6.19 and
> linux-2.6.22. Both 2.6.19 and 2.6.22 are failed on same 
> position,please see follow
> information. linux-2.6.19 and linux-2.6.22 are come from BSP 
> of freescale. I used
> the u-boot-1.2.0 that compiled by myself. We guess that maybe 
> we did not setup the
> bootargs parameter on u-boot rightly or maybe the DDR-I 
> hardware circuit design is
> not good enough.
> 
> If the reason is the bootargs parameter, could you tell me 
> what is the right
> bootargs for linux-2.6.19 and linux-2.6.22?
> 
> If the reason is the DDR, I want to boot the linux on my 
> SDRAM chip,kick off the
> DDR, my SDRAM located on the address of F0000000~F3FFFFFF, 
> total 64MB. How can I
> modify the source code of linux to re-map it and ramdisk and 
> others to my SDRAM
> chip space?
> 
> 
> Follow is the fail information:
> => bootm 0c000000 0e000000
> ## Booting image at 0c000000 ...
>    Image Name:   Linux-2.6.22
>    Image Type:   PowerPC Linux Kernel Image (gzip compressed)
>    Data Size:    1333681 Bytes =  1.3 MB
>    Load Address: 00000000
>    Entry Point:  00000000
>    Verifying Checksum ... OK
>    Uncompressing Kernel Image ... OK
> ## Loading RAMDisk Image at 0e000000 ...
>    Image Name:   uboot ext2 ramdisk rootfs
>    Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
>    Data Size:    3589813 Bytes =  3.4 MB
>    Load Address: 00000000
>    Entry Point:  00000000
>    Verifying Checksum ... OK
>    Loading Ramdisk to 0fc3e000, end 0ffaa6b5 ... OK    
> 
> 
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