From mboxrd@z Thu Jan 1 00:00:00 1970 From: getarunks@gmail.com (Arun KS) Date: Tue, 11 Feb 2014 10:12:02 +0530 Subject: Firmware Loading every boot? In-Reply-To: References: <52f8d445.c3b2440a.27ca.2b63@mx.google.com> Message-ID: To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org Hi Jeshwanth, On Mon, Feb 10, 2014 at 11:00 PM, Jeshwanth Kumar N K < jeshkumar555@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 wrote: > >> Hi Jeshwanth, >> >> >> On Mon, Feb 10, 2014 at 6:59 PM, Jeshwanth 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 >>> >>> >>> _______________________________________________ >>> Kernelnewbies mailing list >>> Kernelnewbies at kernelnewbies.org >>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >>> >>> >> > > > -- > Regards > Jeshwanth Kumar N K > Bangalore, India > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20140211/f0f4e2a5/attachment.html