Ping does not work on my MPC8544 board, using linux2.6.23

hank peng pengxihan at gmail.com
Tue Dec 8 18:12:07 EST 2009


2009/12/8 林志平 <solyn123 at gmail.com>:
>
> 2009/12/8 Scott Wood <scottwood at freescale.com>
>>
>> On Mon, Dec 07, 2009 at 11:53:22AM +0800, 林志平 wrote:
>> > Does dtc1.2.0 can compile dts files under linux2.6.23?
>>
>> Probably not -- 2.6.23 is very old, and I think newer dtcs only support
>> the
>> newer dts syntax.
>>
>> > Another question is that I found linux2.6.31 does not support
>> > board mpc8544ds,
>>
>> It should.  What problems do you see?
>
> => bootm 0x1000000 0x1800000 0x800000
> ## Booting kernel from Legacy Image at 01000000 ...
>    Image Name:   Linux-2.6.31
>    Image Type:   PowerPC Linux Kernel Image (gzip compressed)
>    Data Size:    2185099 Bytes =  2.1 MB
>    Load Address: 00000000
>    Entry Point:  00000000
>    Verifying Checksum ... OK
> ## Loading init Ramdisk from Legacy Image at 01800000 ...
>    Image Name:   Simple Embedded Linux Framework
>    Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
>    Data Size:    1859256 Bytes =  1.8 MB
>    Load Address: 00000000
>    Entry Point:  00000000
>    Verifying Checksum ... OK
> ## Flattened Device Tree blob at 00800000
>    Booting using the fdt blob at 0x800000
>    Uncompressing Kernel Image ... OK
>    Loading Ramdisk to 1fca7000, end 1fe6ceb8 ... OK
> booting kernel using flat tree
> It then stops and never print any more,  I use mpc85xx_defconfig, I select
> mpc85xxds in the menuconfig and deselect other options like mpc8540ads etc.
>>
Try to change "link_address='0x400000'" tp "link_address='0x800000'"
in arch/powerpc/boot/wrapper.
If you have result, remember to give me a feedback.


>> > And I never boot linux-2.6.31 on my board, why linux-2.6.31 doesnot
>> > provide a config file like mpc8544_ds_defconfig?
>>
>> Does mpc85xx_defconfig not work?
>
> Yes mcp85xx_defconfig does not work, I can see mpc8540ads in the menuconfig,
> but no mpc8544ds. And when I down load the generated uImage, It does not
> work.
>
>>
>> -Scott
>
>
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