Firmware Loading every boot?

[Arun KS]

Hi Jeshwanth,


On Mon, Feb 10, 2014 at 11:00 PM, Jeshwanth Kumar N K <
jeshkumar555 at gmail.com> wrote:

> Hi Arun,
>
> Thanks for the reply :)
>
> Which means all the firmware available in /lib/firmware loads to device
> when device attached? (I mean to volatile memory of device)
>
> I have one more doubt/assumption in this.
>
> What I feel is, dynamically loading firmware is because of loading the
> firmware for specific platform. i.e. Windows and Linux firmware (for same
> device) are different, Windows loads firmware which is created for Windows,
> and Linux loads firmware created for Linux systems.
>
I don't think so. These binaries will not depend on OS(windows or linux)
and  will be specific to your pl310 controller.  PL310 is a microcontroller
and the loaded firmware is a program which runs on that.
It will be hardware specific. Just like you need to create different binary
for 8051, PIC or ARM.

HTH.

Thanks,
Arun


> Please let me know whether my assumption is right :)
>
>
> On Mon, Feb 10, 2014 at 7:27 PM, Arun KS <getarunks at gmail.com> wrote:
>
>> Hi Jeshwanth,
>>
>>
>> On Mon, Feb 10, 2014 at 6:59 PM, Jeshwanth <jeshkumar555 at gmail.com>wrote:
>>
>>> Hello List,
>>>
>>> I came to know that, linux loads firmware for my dma everytime it boots.
>>> But I don't understand, why it is required to load everytime it boots,
>>> don't dma holds which is loaded previously.
>>>
>> Might be because it is loaded in to some volatile memory like DDR, which
>> does not persist during reboots.
>>
>> Thanks,
>> Arun
>>
>>
>>> AFAIK, firmware is a program which runs in devices.
>>>
>>> Please correct me if I am wrong.
>>
>>
>>> Thanks :)
>>>
>>> Regards,
>>> Jeshwanth
>>>
>>> Sent from my HTC
>>>
>>>
>>> _______________________________________________
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>>> Kernelnewbies at kernelnewbies.org
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>>>
>>
>
>
> --
> Regards
> Jeshwanth Kumar N K
> Bangalore, India
>
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