Raw binary Image of linux

[victorascroft at gmail.com]

Hello,

On 15-03-16 09:59:33, chirag garg wrote:
> Hi,
> 
> On Mon, Mar 16, 2015 at 9:45 AM, <victorascroft at gmail.com> wrote:
> 
> > Hello,
> >
> > On 15-03-16 09:33:21, chirag garg wrote:
> > > Hello ,
> > >
> > > I perform the following steps to run linux kernel on imx6:
> > >
> > > Download 3.18 kernel from www.kernel.org
> > > Make steps:
> > > make CROSSarm-linux-gnueabi- ARCH=arm imx_v6_v7_defconfig
> > > make CROSS_COMPILE=arm-linux-gnueabi- ARCH=arm uImage LOADADDR=10001000
> > >
> > > cp linux-3.18.4/arch/arm/boot/uImage Sd_card
> >
> > So you copied the kernel image to SD card.
> >
> > > Run uImage on the imx6 board...
> >
> > Can you provide some more information on this point? When you copied the
> > uImage to SD card, did you do something else to perhaps update the
> > uImage on the module, or is the module setup to boot from SD card? And
> > what about the device tree blob? Did you have a look at the uboot
> > environment variables?
> >
> > I perform the following steps on imx6 board:
> mmc dev 1
> fatload mmc 1:1 0x10800000 uImage
> bootm 10800000
> 
> I havn't use device tree blob to run this image.

Device tree will be absolutely required. You will probably need to set 
the uboot environment variables correctly. Newer kernels use the 
information from device tree to set things up.

You probably need something like this

u-boot>tftpboot 0x11000000 imx6q-sabresd.dtb
u-boot>tftpboot 0x12000000 uImage
u-boot>bootm 0x12000000 - 0x11000000

Have a look here. Also what is your uboot version? Perhaps you will have 
to upgrade your uboot as well.
https://community.freescale.com/thread/313457

> 
> 
> > What was the earlier kernel version the board was booting with?
> 
> 
> Earlier, I used the following linux kernel:
>  http://boundarydevices.com/cross-compile-i-mx6-kernel-using-ltib-toolchain/
> 
> which was successfully booting.
> Kernel version is 3.0.35.
> 

Ancient kernel that used board files and not device trees.

- Sanchayan.

> 
> > >
> > > Output :
> > >
> > > ## Booting kernel from Legacy Image at 10800000 ...
> > >    Image Name:   Linux-3.18.4
> > >    Image Type:   ARM Linux Kernel Image (uncompressed)
> > >    Data Size:    5445640 Bytes =  5.2 MB
> > >    Load Address: 10001000
> > >    Entry Point:  10001000
> > >    Verifying Checksum ... OK
> > >    Loading Kernel Image ... OK
> > > OK
> > >
> > > Starting kernel ...
> > >
> > >
> > > what could be the problem in this ? why Is this kernel not able start on
> > > imx6 platform ?
> >
> > That output is on the serial debug console? Is the console parameter in
> > uboot set appropriately to what the kernel expects?
> >
> > - Sanchayan.
> >
> > >
> > > Thanks in advance,
> > > Regards,
> > >
> > > Chirag Garg
> > > IIT Madras , Rise Lab
> > >
> > > On Mon, Mar 9, 2015 at 11:01 PM, <victorascroft at gmail.com> wrote:
> > >
> > > > Hello,
> > > >
> > > > On 15-03-09 21:53:34, chirag garg wrote:
> > > > > Hello,
> > > > >
> > > > > On Mon, Mar 9, 2015 at 9:01 PM, <victorascroft at gmail.com> wrote:
> > > > >
> > > > > > Hello,
> > > > > >
> > > > > > On 15-03-09 11:20:55, chirag garg wrote:
> > > > > > > Hi all,
> > > > > > >
> > > > > > > I am new to the linux kernel source code. I want to compile linux
> > > > source
> > > > > > > code for imx6 ARM based platform.
> > > > > > > I want to generate  raw binary image (.bin file) and .dtb file.
> > Can
> > > > any
> > > > > > one
> > > > > > > help me in this.?
> > > > > >
> > > > > > Which iMX6 platform is this? Depending on the platform, it would
> > be as
> > > > > > simple as doing make imx_v6_v7_defconfig and then using the
> > correct dtb
> > > > > > for the platform. Boards like Nitrogen, Sabre or Wandaboard should
> > boot
> > > > > > easily with the recent kernels.
> > > > > >
> > > > > > I am using freescale imx6 quad core saberlite board. Available on
> > the
> > > > > freescale site
> > > > >
> > http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=i.MX6Q
> > > > >
> > > > > Where should be this dtb available according to the board. I am
> > trying to
> > > > > boot 3.14 linux kernel.
> > > >
> > > > The DTS files for all ARM boards are available in the following
> > > > directory
> > > >
> > > > http://lxr.free-electrons.com/source/arch/arm/boot/dts/?v=3.14
> > > >
> > > >
> > > >
> > http://lxr.free-electrons.com/source/arch/arm/configs/imx_v6_v7_defconfig?v=3.14
> > > >
> > > > imx_v6_v7_defconfig is the config file for imx platform.
> > > >
> > > > -Regards,
> > > > Sanchayan.
> > > >
> > > > >
> > > > >
> > > > > > Do you have a custom board or one of those easily available
> > development
> > > > > > platforms?
> > > > > >
> > > > > > Board is easily available in the market.
> > > > >
> > > > >
> > > > > > - Regards,
> > > > > > Sanchayan..
> > > > > >
> > > > > > >
> > > > > > > Thanks in advance
> > > > > > > Regards
> > > > > > >
> > > > > > > Chirag Garg
> > > > > > > IIT Madras , Rise Lab
> > > > > >
> > > > > >
> > > > > Regards
> > > > > Chirag Garg
> > > > > IIT Madras , Rise Lab
> > > > >
> > > > >
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> > > >
> >