Kumar Gala wrote:
>
> On Jun 5, 2008, at 3:39 PM, Wolfgang Grandegger wrote:
>
>> Kumar Gala wrote:
>>>
>>>> ===================================================================
>>>> --- /dev/null
>>>> +++ linux-2.6-galak/arch/powerpc/boot/dts/tqm8548.dts
>>>>
>>>
>>>> + memory {
>>>> + device_type = "memory";
>>>> + reg = <0x00000000 0x20000000>;
>>>> + };
>>>
>>> is memory fixed on this board to 256M?
>>
>> Ah, no, actually I have a module with 512 MB but it can be ordered with
>> less or more memory like the other TQM85xx modules as well. Does U-Boot
>> fixup this value? Is it used by Linux?
>
> if u-boot determines the memory it will update this properly. Linux
> expects this to be set to know how much mem is in the system.
>
> if you can try setting the 2nd value to 0x0 and see if it boots that
> will let me know if its safe for me to change.
It works with
memory {
device_type = "memory";
reg = <0x00000000 0x00000000>; // size filled by U-Boot
};
as well. With my previous definition Linux came up with 512 MB of memory
as well and it was already obvious, that U-Boot fills in the right size
value.
Wolfgang.
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