Re: [Xen-devel] Problems when booting on OMAP5432 devboard

[Chen Baozi <baozich@xxxxxxxxx>]

On Jul 1, 2013, at 8:06 PM, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:

> On Mon, 2013-07-01 at 20:00 +0800, Chen Baozi wrote:
> 
>>> You device has 2GB RAM, what happens if you hack the DTS to say it only
>>> has 1GB?
>> 
>> Bingo! Compared to Arndale board, OMAP5432 uEVM's RAM is not yet 
>> 0x40000000~0xbfffffff, but 0x80000000~0xffffffff. After make the following 
>> change to DTS:
>> 
>>      memory {
>>              device_type = "memory"
>> -            reg = <0x80000000 0x80000000>; /* 2 GB */
>> +            reg = <0x80000000 0x40000000>; /* 1 GB */
>>      };
>> 
>> I can reach the output "Xen heap: 131072 pages  Dom heap: 131072 pages". 
> 
> Excellent!
> 
> So I guess if you keep the 2GB but put it at the right address it will
> also work?

I'm afraid no, :-(

Here is how I load and boot the image both in 1GB case and 2G case (from 
u-boot):

OMAP5430 EVM # fatload mmc 0 0x80000000 xen-uImage
reading xen-uImage
902572 bytes read in 59 ms (14.6 MiB/s)
OMAP5430 EVM # bootm 0x80000000 -
## Booting kernel from Legacy Image at 80000000 ...
   Image Name:
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    902508 Bytes = 881.4 KiB
   Load Address: 80200000
   Entry Point:  80200000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK

And I've also tried "fat load mmc 0 0x90000000 xen-uImage" in both cases. It 
works for 1GB but fails in 2GB case too.

Something wrong?

Cheers,

Baozi.
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