Firmware Loading every boot?

[Jeshwanth Kumar N K]

Thanks Peter and Arun,

I can understand now :)

Any good documentation to understand UEFI ?


On Fri, Feb 14, 2014 at 10:32 AM, Peter Teoh <htmldeveloper at gmail.com>wrote:

> FYI, the "firmware" are loaded from flash:
>
> http://en.wikipedia.org/wiki/Flash_memory
>
> which means microcontroller (or microprocessor) + DMA/DDR memory + flash
> are the usual makeup of an embedded system.   flash are non-volatile, but
> normally it is slower and cannot be executed as CPU or microncontroller
> instruction.   which is why you will need to load it into memory to be
> executed:
>
> http://lwn.net/Articles/135472/
>
> cheers.
>
>
> On Mon, Feb 10, 2014 at 9:29 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.
>> 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,
> Peter Teoh
>



-- 
Regards
Jeshwanth Kumar N K
Bangalore, India
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