Also,  check whether this approach is correct by an experienced kernel buddies from the list.

On Thu, Jun 7, 2012 at 6:07 PM, Harishkumar V <harishpresent@gmail.com> wrote:
ok, then start with that. But, do understand the normal kernel changes betwwen ur kernel source and current one.


On Thu, Jun 7, 2012 at 6:05 PM, Sertac TULLUK <sertac@merihvideo.com.tr> wrote:
There is no plat- directory in the chipbox kernel:
 
root@ubuntu:/chipbox/chipbox-kernel/arch/arm# ls
boot    configs  Kconfig.debug  lib            mach-clps7500  mach-epxa10db    mach-h720x  mach-integrator  mach-ixp2000  mach-l7200    mach-omap   mach-pxa  mach-s3c2410  mach-shark      Makefile  nwfpe     tools
common  Kconfig  kernel         mach-clps711x  mach-ebsa110   mach-footbridge  mach-imx    mach-iop3xx      mach-ixp4xx   mach-lh7a40x  mach-orion  mach-rpc  mach-sa1100   mach-versatile  mm        oprofile  vfp
root@ubuntu:/chipbox/chipbox-kernel/arch/arm#
----- Original Message -----
Sent: Thursday, June 07, 2012 3:29 PM
Subject: Re: New kernel for Chipbox

check also directory starting with plat-

like, plat-omap, etc.

On Thu, Jun 7, 2012 at 5:54 PM, Sertac TULLUK <sertac@merihvideo.com.tr> wrote:
Here we go:
 
root@ubuntu:/chipbox/chipbox-kernel/arch/arm# ls
boot    configs  Kconfig.debug  lib            mach-clps7500  mach-epxa10db    mach-h720x  mach-integrator  mach-ixp2000  mach-l7200    mach-omap   mach-pxa  mach-s3c2410  mach-shark      Makefile  nwfpe     tools
common  Kconfig  kernel         mach-clps711x  mach-ebsa110   mach-footbridge  mach-imx    mach-iop3xx      mach-ixp4xx   mach-lh7a40x  mach-orion  mach-rpc  mach-sa1100   mach-versatile  mm        oprofile  vfp
root@ubuntu:/chipbox/chipbox-kernel/arch/arm# ls mach-orion/
core.c  irq.c  Kconfig  Makefile  Makefile.boot
root@ubuntu:/chipbox/chipbox-kernel/arch/arm#
 
 
# Object file lists.
 
obj-y                   := core.o irq.o
obj-m                   :=
obj-n                   :=
obj-                    :=
 
root@ubuntu:/chipbox/chipbox-kernel/arch/arm/mach-orion# cat Kconfig
choice
        prompt "ORION Series SoC Version"
        depends on ARCH_CELESTIAL_ORION
        default ARCH_ORION_CSM1200
 
config ARCH_ORION_CSM1100
        bool "CSM1100 SoC"
        help
          CSM1100 is the MPEG2-based DTV SoC from
          Celestial Semiconductor.
 
config ARCH_ORION_CSM1200
        bool "CSM1200 SoC"
        help
          CSM1200 is the MPEG2/H.264 IPTV/DTV SoC
          from Celestial Semiconductor.
config ARCH_ORION_CSM1200_J
        bool "CSM1200J SoC for SD"
        depends on ARCH_ORION_CSM1200
        default n
    help
          CSM1200J is the MPEG2/H.264 IPTV/DTV SoC for SD Video
          from Celestial Semiconductor.
 
config ARCH_ORION_CSM1201
        bool "CSM1201 SoC"
        help
          CSM1201 is the MPEG2/H.264 IPTV/DTV SoC
          from Celestial Semiconductor.
config ARCH_ORION_CSM1201_J
        bool "CSM1201J SoC for SD"
        depends on ARCH_ORION_CSM1201
        default n
    help
          CSM1201J is the MPEG2/H.264 IPTV/DTV SoC for SD Video
          from Celestial Semiconductor.
endchoice
 
 
So, I should copy whole "mach-orion" folder to new kernel source tree, am I correct? An then what to do?
----- Original Message -----
Sent: Thursday, June 07, 2012 3:17 PM
Subject: Re: New kernel for Chipbox

Sertac,

Starting point will be, arch/arm.
make platform base CPU SoC code and serial up.
If u able to make these things up, then its addition of pheripherals.


On Thu, Jun 7, 2012 at 5:28 PM, Sertac TULLUK <sertac@merihvideo.com.tr> wrote:
Harishkumar,
 
I already know my SoC name, it is Celestial CSM1203, and it is not available in any official kernel source tree ( the last one I checked it 3.4.1 10 minutes ago).
 
Since it is not available in the original kernel source, we had to make those thousands of changes one-by-one, and it would take years, right?
 
Am I correct?
----- Original Message -----
Sent: Thursday, June 07, 2012 2:52 PM
Subject: Re: New kernel for Chipbox

Sertac,

Also, if u know ur chip SoC name, u can find whether open source linux kernel may have already support inbuilt in it. u can google around it, before deciding to port.

On Thu, Jun 7, 2012 at 5:18 PM, Harishkumar V <harishpresent@gmail.com> wrote:
Sertac,

From your present source, u can find the Celestial SoC change.
check for arch/arm folder.

then in corresponding drivers, like usb,serial,video etc.





On Thu, Jun 7, 2012 at 4:36 PM, Sertac TULLUK <sertac@merihvideo.com.tr> wrote:
Dear Harishkumar;
 
Thank you very much for your quick answer.
 
Where can I find related Celestial SoC & driver patch file?
 
Best Regards
 
Sertac
----- Original Message -----
Sent: Thursday, June 07, 2012 1:31 PM
Subject: Re: New kernel for Chipbox

Sertac,

Basically u need to have Celestial SoC & drivers related patch.
Then, u can download desired kernel or latest 3.3.x.

Apply and do the forward porting. It won't be straight forward, u need to re-write a bit.
U can always refer any other celectial SoC family in latest kernel source or other ARM9 family.

see -> arch/arm/

On Thu, Jun 7, 2012 at 2:36 PM, Sertac TULLUK <sertac@merihvideo.com.tr> wrote:
Dear All;
 
I have a digital satellite receiver (named Chipbox), which uses linux kernel 2.6.12.5.
 
Main chipset name is Celestial CSM1203 ( It is ARM926EJ-S core).
 
The original kernel source (and all other sources) can be downloaded here: http://www.merihvideo.com.tr/chipbox-source.php
 
I would like to add some functionality (Such as CIFS, USB WIFI...) to my STB. In order to do that, I need to cross compile new kernel.
 
However, the chipset provider ( Celestial) does not provide a new kernel to do this. They just compiled 2.6.12.5 for about 5-6 years ago, and they didn't do a new kernel from that time.
 
So, I need your helps:
 
1) Celestial has done a lot of modifications on the original 2.6.12.5 source ( drivers, headers, definitions...) All these changes can be seen by using MELD tool.
 
2) In order to have a new kernel ( Such as 2.6.35.13) which can be running on my chipbox, what are the steps should be done one by one?
 
Can you please explain for a newbie please?
 
Best Regards
 
Sertac

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Thanks and Regards,
Harish Kumar. V

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Harish Kumar. V



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Thanks and Regards,
Harish Kumar. V