Adding new board support
From: Varka Bhadram <hidden>
Date: 2014-06-09 05:05:20
Thank you for the guidence... Is there any tutorial to how to do the development for the board. ? Thanks, -Varka Bhadram On June 7, 2014 at 12:57 PM AYAN KUMAR HALDER [off-list ref] wrote:
On Sat, Jun 7, 2014 at 12:40 AM, Kristofer Hallin [off-list ref] wrote:quoted
Might be a good thing to start with something easier. If you can't navigate the source tree well enough to find the relevant code you will have a hard time rewriting stuff for different hardware. On Fri, Jun 6, 2014 at 11:40 AM, Varka Bhadram [off-list ref] wrote:quoted
Hi, I am having a board which is customized for our requirement and it is based on cortex-a8 arm architecture. I want to add the board support for this in linux kernel. From where can i start to get it work...? Any tutorial for this to be done...? Thanks and Regards, Varka Bhadram ------------------------------------------------------------------------------------------------------------------------------- [ C-DAC is on Social-Media too. Kindly follow us at: Facebook: https://www.facebook.com/CDACINDIA & Twitter: @cdacindia ] This e-mail is for the sole use of the intended recipient(s) and may contain confidential and privileged information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies and the original message. Any unauthorized review, use, disclosure, dissemination, forwarding, printing or copying of this email is strictly prohibited and appropriate legal action will be taken. ------------------------------------------------------------------------------------------------------------------------------- _______________________________________________ Kernelnewbies mailing list Kernelnewbies at kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies_______________________________________________ Kernelnewbies mailing list Kernelnewbies at kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbiesHi Varka, I would suggest you the following:- 1. Create a config file under arch/arm/configs/ for your board. You may refer to any of the standard configuration which closely resembles your board's configuration. To start with enable the basic configurations such as processor, timer, uart, etc and disable SMP which are the bare minimum requirements for the board to boot. 2. Add a folder under arch/arm/<mach-yourplatformname>. Add board.c where your can register your platform devices such as pcie, nand, usb, uart, gpio, rtc etc 3, Under the same folder above, add timer.c to initialize your timers.Add clock.c to enable/disable clocks and change clock rate of various Functional Blocks. Add <yourplatformname.c> to initialize your processor specific details such as global timers, arm pmu, interrupts, cache, global dma, ACP, SCU and inter-processor interrupt( if later you decide to enable SMP) 4. It is advisable to refer to a standard platform (like versatile - express ) to understand the board specific configurations in Linux. Hope this helps to get you started, Regards, Ayan Kumar Halder _______________________________________________ Kernelnewbies mailing list Kernelnewbies at kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
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