Hi Rajesh I'm on the same boat as you. What worked for me is the following:
1) Get the 2.6.25 Android kernel and extract to a directory of choice. Note that the latest Android source uses kernel 2.6.27 2) Make sure you download the latest BSP for the **PDK** on Freescale's site, r14. I think there was one released in October 2008. Install it, but If you're using Ubuntu, "sudo aptitude install alien rpm" and make sure /etc/sudoers have your username in it. 3.i) In the LTIB directory created by your PDK installation, run "./ ltib" and be sure to choose the IMX31_3STACK as platform (PDK's alternative name). 3.ii) In kernel selection, select kernel 2.6.24, and make sure that "Leave sources after building" is checked. To save time, make sure all other packages in "Package Selection" is deselected". Also check the "Configure kernel" option. 3.iiI) Exit, it will start to compile the BSP. After it has finished extracting the kernel source it will run "make menuconfig" by itself. Exit, and it will start to compile the kernel. It is safe to Control-C yourself out of it 4) In the BSP installation directory (where you ran "./ltib") there is a folder rpm/BUILD/linux-2.6.24. That is where your BSP kernel folder is. You can then procede in downloading a vanilla 2.6.24 from kernel.org and do a diff on it. A good tool to visually do this is meld. If you have Ubuntu, "sudo aptitude install meld" is your helper. Here is a list of directories that you must focus on in porting to your Android kernel arch/arm/mach-mx3 arch/arm/plat-mx3 include/asm-arm/arch-mxc sound/arm sound/soc drivers/mxc drivers/watchdog/ drivers/video/mxc drivers/spi drivers/serial drivers/regulator drivers/rtc Be sure all the Kconfig and Makefiles reflect your changes. Hope this will prod you in the right direction. There is one issue on Android and that is x-panning on video - the screen looks as though it is only updated once every 2nd keypress, and I still have to get the sound working. I've also forced the LCD backlighting on on init, but that is about how deep my hacking went to get this "usable". If you have flicker on the screen, mail me. On Jan 12, 8:39 am, "Rajesh N" <rajesh.andr...@gmail.com> wrote: > Hi Deepak, > > Thanks for u r kind reply, > > I am unable to get few statements which u have mentioned in 7 step > procedure to port Android on IMX31 board/ > > In step *3* u have mentioned "*my board specific changes*" and in > step *4*u have mentioned a patch which should have got from step 3. I > unable to > follow step 3 and step 4 out of ur 7 point procedure to make android up > with imx31 board, can u please be more specific on step 3 & 4. > > I am working on IMX31 *PDK* board, I hope it doesn't make any difference > with both versions of IMX31 board which r available in market. > > Regards, > Rajesh N > > On Mon, Jan 12, 2009 at 10:06 AM, deepak singal <deesin...@gmail.com> wrote: > > Hi Rajesh, > > > Porting of Google Android-1.0 Version to IMX31 board Steps-----> > > > Port Android on IMX31(ARM-11 core) using following steps: > > > --->linux-2.6.25-android-1.0_r1.tar.gz Android kernel Source Code > > (Download Site--->http://code.google.com/p/android/downloads/list) > > > --->Freescale IMX31 specific patchs (Available for Linux-2.6.24 kernel) > > (Download > > Site--->http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=i.MX31...) > > > --->linux-2.6.25.tar.gz Clean kernel Source Code > > (Download Site--->http://www.kernel.org/pub/linux/kernel/v2.6/) > > > I am starting with the 2.6.25 kernel Source code. I am in the process of > > trying to make a 2.6.25 Android kernel for the I.MX31 board. > > > Current approach is this: > > > (1) Download All the above kernel source code and patches from above > > mention sites. > > > (2) Apply Freescale imx31 specific Patch into Linux-2.6.25 kernel source > > code (some thing applied by the automated mechanism and other are left for > > manual patching) > > > (3) Apply my board specific change into (linux-2.6.25 + freescale patch) > > kernel source code > > > (4) Get the proper tested imx31 kernel (linux-2.6.25 + freescale Patchs + > > my board patch) > > > (5) Use the tool diff to create a patch from a clean linux-2.6.25 kernel > > source and the android specific linux-2.6.25-android-1.0_r1 kernel source. > > diff -Naur linux-2.6.25/ linux-2.6.25-android-0.9_r1/ --> android.patch > > > (6) Remove all stuff from the android.patch file that will not need > > (goldfish related things, yaffs2 things because freescale kernel provides > > already yaffs2) > > > (7) Apply android.patch into (linux-2.6.25 + freescale Patchs + my board > > patch) kernel Source Code (some thing applied by the automated mechanism > > and other are left for manual patching) > > > Please feel free to discuss anything. > > > Best Regards, > > > *Deepak Singal* > > > * > > * > > > On Sun, Jan 11, 2009 at 10:18 PM, Rajesh N <rajesh.andr...@gmail.com>wrote: > > >> Hi s.avtar, > > >> Thanks for kind reply, > > >> I am bit confused with u r statements, I went through the linux > >> resources given by freescale for IMX31 board, the CD contained Linux kernel > >> with some toolchains. > > >> As u said, in u r last statement as I need to DIFF IMX BSP with vanilla > >> kernel ! , I have learnt from the forum that I need to make > >> a DIFF my IMX31 BSP with Android kernel to take a patch which I should > >> apply to IMX31 BSP where by I can add all these nessesary Android > >> functionality to my IMX31 BSP (Removing unwanted goldfish and relatated > >> stuffs before I port to real hardware). > > >> I would like to know u r veiw on my statements, correct me if I am wrong > >> anyway! > > >> Best Regards, > >> Rajesh N > > >> On Sun, Jan 11, 2009 at 6:37 PM, <s.av...@gmail.com> wrote: > > >>> > if Android kernel which is downloaded from source.android.com comes > >>> > with Freescale IMX31 BSP > >>> The kernel is Vanilla plus Android related patches. So, IMX31 support > >>> in the kernel would be as much as what is available in the Vanilla > >>> version. Note that you will first need to setup/compile the kernel for > >>> MX31 configuration. > > >>> > we have to merge source code given Freescale and android > >>> > using "DIFF" and adding android patch as stated in android fourms, > >>> > which I am not very clear till now!. > >>> If you already have a BSP, you might want to "diff" that against Vanilla > >>> first. > > >>> Avtar > > >>> On 1/11/09, Rajesh N <rajesh.andr...@gmail.com> wrote: > >>> > Hi All, > > >>> > I am very much new to Android, I have been asked to port android on > >>> > Freescale IMX31 board which is shipped with Linux BSP. > >>> > I went through few questions on forum which states some incomplete > >>> > statements on porting on IMX31 board. > > >>> > I would like to know if Android kernel which is downloaded from > >>> > source.android.com comes with Freescale IMX31 BSP, or we have to merge > >>> > source code given Freescale and android > >>> > using "DIFF" and adding android patch as stated in android fourms, > >>> which I > >>> > am not very clear till now!. > > >>> > If any one in the group help me our in giving clear picture on how to > >>> go > >>> > about in porting Android on IMX31 platform, I appreciate your > >>> suggestions > >>> > and road map to go about with porting issues. > > >>> > Best Regards, > >>> > Rajesh N --~--~---------~--~----~------------~-------~--~----~ unsubscribe: android-porting+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-porting -~----------~----~----~----~------~----~------~--~---
