Building Linux Kernel

[#1]

• Building using Yocto
• 1 - Baking (building) the kernel
• 2 - Configuring the kernel
• 3 - Cleaning and building again with the new configuration
• Building without a BSP
• 1- Downloading the kernel source code
• 2 - Choose which branch will you use
• 3 - Setting the environment variables
• 3.1 - Using Yocto Toolchain
• 3.2 - Using Ubuntu Toolchain
• For 64-bits processors (i.MX8 family)
• For 32-bits processors (i.MX2, i.MX3, i.MX5 and i.MX6 families)
• 4 - Configuring the kernel
• 5 - Building the modules

Building using Yocto

1 - Baking (building) the kernel

When an image is built using Yocto (for more details about how to build an image, check the Yocto training home: https://community.nxp.com/docs/DOC-94849) the kernel is automatically built and the kernel image is located at /fsl-community-bsp/build/tmp/deploy/images/<your_target>/uImage

If you want to build only the kernel, the following command can be used:

$ bitbake linux-imx

   

2 - Configuring the kernel

To call the kernel menuconfig, run the command:

$ bitbake -c menuconfig linux-imx

  

A new terminal window will open with the kernel menuconfig. Make changes if needed, exit the configmenu and copy the .config generated file to defconfig as following:

$ cp tmp/work/imx6qsabresd-poky-linux-gnueabi/linux-imx/3.0.35-r33.10/git/.config

../sources/meta-fsl-arm/recipes-kernel/linux/linux-imx-3.0.35/mx6/defconfig

  

Note that the kernel version, in this case "3.0.35-r33.10" may change.

3 - Cleaning and building again with the new configuration

With the new defconfig saved on the correct folder (step 2), it's time to clear all previous kernel and build it again:

$ bitbake -c cleansstate linux-imx

$ bitbake <your_image>       or         $ bitbake linux-imx

  

The uImage will be under tmp/deploy/image

Building without a BSP

1- Downloading the kernel source code

Choose what kernel you will build. Usually, the NXP kernel or mainline (kernel.org) kernel:

For NXP kernel (more details on https://source.codeaurora.org/external/imx/linux-imx/ ) use:

$ git clone https://source.codeaurora.org/external/imx/linux-imx 

              

For Mainline kernel (more details on https://www.kernel.org/ ) use:

$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git

              

2 - Choose which branch will you use

Once downloaded, check the available branches by using:

$ git branch -a

  master
  remotes/origin/HEAD -> origin/master
  remotes/origin/imx_4.9.123_imx8mm_ga
  remotes/origin/imx_4.9.51_imx8_beta1
  remotes/origin/imx_4.9.51_imx8_beta2
  remotes/origin/imx_4.9.51_imx8m_beta
  remotes/origin/imx_4.9.51_imx8m_ga
  remotes/origin/imx_4.9.88_2.0.0_ga
  remotes/origin/imx_4.9.88_imx8mm_alpha
  remotes/origin/imx_4.9.88_imx8qxp_beta2
  remotes/origin/master

Make a local branch, based on a branch you choose from the list:

$ git checkout -b local_branch origin/imx_4.9.88_2.0.0_ga

*NOTES:      On command above my local branch name is "local_branch". You can choose this name as you prefer

                    The chosen branch was origin/imx_4.9.88_2.0.0_ga. You can choose another one, always starting by origin/.......

3 - Setting the environment variables

3.1 - Using Yocto Toolchain

If you're using the Yocto SDK (Check the Yocto training at NXP community: https://community.nxp.com/docs/DOC-94849 ), just execute the script to export the needed environment variables, e.g.:

$ source /opt/poky/1.6+snapshot/environment-setup-cortexa9hf-vfp-neon-poky-linux-gnueabi 

$ unset LDFLAGS     

If you're using another toolchain, the common environment variables to set are the following:

$ export PATH=$PATH:/opt/freescale/usr/local/gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/fsl-linaro-toolchain/bin/
$ export TOOLCHAIN=/opt/freescale/usr/local/gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/fsl-linaro-toolchain/
$ export CROSS_COMPILE=arm-none-linux-gnueabi-

$ export ARCH=arm

IMPORTANT: Change the variables above according your installed toolchain.

3.2 - Using Ubuntu Toolchain

For 64-bits processors (i.MX8 family)

Install the GCC toolchain for 64 bits:

sudo apt-get install gcc-aarch64-linux-gnu

Export the environment variables:

$ export ARCH=arm64
$ export CROSS_COMPILE=/usr/bin/aarch64-linux-gnu-

For 32-bits processors (i.MX2, i.MX3, i.MX5 and i.MX6 families)

Install the GCC toolchain for 32 bits:

sudo apt-get install gcc-arm-linux-gnueabi

Export the environment variables:

export ARCH=arm
export CROSS_COMPILE=/usr/bin/arm-linux-gnueabi-

4 - Configuring the kernel

If you're building for i.MX6 and i.MX5, configure the kernel options based on file imx_v7_defconfig:

$ cp arch/arm/configs/imx_v7_defconfig .config

$ make menuconfig 

$ make

If you're building for i.MX8 family, configure the kernel options based on file arm64/defconfig:

      $ cp arch/arm64/configs/defconfig .config

      $ make menuconfig

      $ make

5 - Building the modules

After step 4, only the kernel (uImage file) was generated. The kernel modules must be built and installed in a known path. First, build the modules:

$ make modules

           

And install them:

$ make modules_install INSTALL_MOD_PATH=/path_where_you_want_to_install

           

[alvind]

Hello,

I followed the steps for building the kernel by building using Yocto and building without a BSP, but the driver I added in the menuconfig did not appear in the target filesystem, what could be the problem?

[saurabh206]

Hi

Alvin

If you driver is configured as a module than you need build using make modules command.

And install it using

make modules_install INSTALL_MOD_PATH=~/module

[alvind]

Hello Saurabh,

I tried building without a BSP, and configured the drivers as modules. I successfully got the .ko files for my drivers, thanks to your tip. But what about using Yocto? I also tried adding a driver to ther kernel via bitbake, and I also followed the steps in this document, but the drivers did not appear in my target filesystem. I am trying to add the USB bluetooth driver btusb, btw. Any ideas about what could cause the problem?

Again thanks for your help

[saurabh206]

Hi

It should work with yocto also.

bitback linux-imx should build your updated kernel

and bitback rootfs should build the modules for you.

[alvind]

Hello Saurabh,

After menuconfig, do I still need to run bitbake -c cleansstate linux-imx? Or do I go straight to bitbake linux-imx? And what do you mean by bitbake rootfs, do you mean the recipe for my image such as "fsl-image-x11" or is it a recipe?

Thanks for your answers!

[ronglinchen]

Hi 

I can't find the file named imx_v6_v7_defconfig ?

could you tell me where can find it?

[rogerio_silva]

Hi Ronglin,

If you're using a recent freescale kernel, the config file name was moved to imx_v7_defconfig. You can use this one.

[ronglinchen]

Hi rogeriopimentel

Thank for your reply.

When I copy the .config file to imx_v7_defconfig in the file named ltib ，Then copy imx_v7_defconfig to .config and make uImage LOADADDR=0x10008000. Some problem have happened like "prompt for development and/or incomplete code/drivers (EXPERIMENTAL) [N/y/?] (NEW)".

I was infered that some drives have build at first time,so we should choice the drives'status in kernel??

It is right or not ? if not,Please tell me how can I do?

[ronglinchen]

Hi rogeriopimentel

I complete the problem.  Thank you again.

But I have the other question. What's the role of step 6?

[saurabh206]

Hi

Ronglin

If you defined the driver as a module than it will build the modules for you.

Default kernel build doesn't build any modules.

Thanks

Saurabh

[ronglinchen]

Hi,

Saurabh Patel

I got it !  Thanks very much!

Best for you

ronglin

[dhavalvadhar]

Hi,

This is really a nice article. I tried to build the kernel with the steps mentioned for 'Build kernel without BSP'. I have already created images using Yocto, thus I already have kernel source available at "<build dir>/tmp/work/imx6slevk-poky-linux-gnueabi/linux-imx/3.14.28-r0/git". I have followed below steps to build the kernel:

# make imx_v6_v7_defconfig

# make uImage

But I got following errors:

arch/arm/mach-imx/built-in.o: In function `clk_pllv3_do_shared_clks':

:(.text+0x1780): undefined reference to `imx_sema4_mutex_lock'

:(.text+0x17a8): undefined reference to `imx_sema4_mutex_unlock'

:(.text+0x17e0): undefined reference to `imx_update_shared_mem'

:(.text+0x17fc): undefined reference to `amp_power_mutex'

:(.text+0x1800): undefined reference to `shared_mem'

arch/arm/mach-imx/built-in.o: In function `clk_gate2_do_shared_clks':

:(.text+0x1a30): undefined reference to `imx_sema4_mutex_lock'

:(.text+0x1a58): undefined reference to `imx_sema4_mutex_unlock'

:(.text+0x1a98): undefined reference to `imx_update_shared_mem'

:(.text+0x1ab8): undefined reference to `amp_power_mutex'

:(.text+0x1abc): undefined reference to `shared_mem'

arch/arm/mach-imx/built-in.o: In function `clk_pfd_do_shared_clks':

:(.text+0x1e24): undefined reference to `imx_sema4_mutex_lock'

:(.text+0x1e4c): undefined reference to `imx_sema4_mutex_unlock'

:(.text+0x1e8c): undefined reference to `imx_update_shared_mem'

:(.text+0x1eac): undefined reference to `amp_power_mutex'

:(.text+0x1eb0): undefined reference to `shared_mem'

arch/arm/mach-imx/built-in.o: In function `imx6sl_set_wait_clk':

:(.text+0x61f8): undefined reference to `low_bus_freq_mode'

arch/arm/mach-imx/built-in.o: In function `imx6q_pm_enter':

:(.text+0x6d64): undefined reference to `imx_mu_enable_m4_irqs_in_gic'

:(.text+0x6de0): undefined reference to `imx_mu_is_m4_in_low_freq'

:(.text+0x6df4): undefined reference to `imx_mu_enable_m4_irqs_in_gic'

arch/arm/mach-imx/built-in.o: In function `imx6q_map_io':

:(.init.text+0xe7a4): undefined reference to `imx6_busfreq_map_io'

arch/arm/mach-imx/built-in.o: In function `imx6sl_map_io':

:(.init.text+0x115e0): undefined reference to `imx6_busfreq_map_io'

drivers/built-in.o: In function `fec_runtime_resume':

:(.text+0x119f00): undefined reference to `request_bus_freq'

drivers/built-in.o: In function `fec_runtime_suspend':

:(.text+0x119f1c): undefined reference to `release_bus_freq'

drivers/built-in.o: In function `imx_controller_resume':

:(.text+0x1666d4): undefined reference to `request_bus_freq'

:(.text+0x1666f4): undefined reference to `release_bus_freq'

:(.text+0x166788): undefined reference to `release_bus_freq'

drivers/built-in.o: In function `imx_controller_suspend':

:(.text+0x16685c): undefined reference to `release_bus_freq'

drivers/built-in.o: In function `ci_hdrc_imx_remove':

:(.text+0x166954): undefined reference to `release_bus_freq'

drivers/built-in.o: In function `ci_hdrc_imx_probe':

:(.text+0x166d10): undefined reference to `request_bus_freq'

:(.text+0x166d30): undefined reference to `release_bus_freq'

:(.text+0x166e1c): undefined reference to `release_bus_freq'

drivers/built-in.o: In function `sdhci_esdhc_runtime_resume':

:(.text+0x1c82d0): undefined reference to `request_bus_freq'

drivers/built-in.o: In function `sdhci_esdhc_runtime_suspend':

:(.text+0x1c8344): undefined reference to `release_bus_freq'

drivers/built-in.o: In function `sdhci_esdhc_imx_probe':

:(.text+0x1c8fdc): undefined reference to `release_bus_freq'

:(.text+0x1c9004): undefined reference to `request_bus_freq'

drivers/built-in.o: In function `vpu_runtime_resume':

:(.text+0x1c949c): undefined reference to `request_bus_freq'

drivers/built-in.o: In function `vpu_runtime_suspend':

:(.text+0x1c94b8): undefined reference to `release_bus_freq'

sound/built-in.o: In function `fsl_ssi_runtime_resume':

:(.text+0x2f160): undefined reference to `request_bus_freq'

sound/built-in.o: In function `fsl_ssi_runtime_suspend':

:(.text+0x2f17c): undefined reference to `release_bus_freq'

sound/built-in.o: In function `fsl_spdif_runtime_resume':

:(.text+0x30e08): undefined reference to `request_bus_freq'

sound/built-in.o: In function `fsl_spdif_runtime_suspend':

:(.text+0x30e24): undefined reference to `release_bus_freq'

make: *** [vmlinux] Error 1

Can someone please help me to resolve this?

Appreciate your quick help.

Thanks,

Dhaval

[rogerio_silva]

Hi Dhaval,

Could you try to use the following defconfig?

make imx_v7_defconfig

Rgds

Rogerio

[dhavalvadhar]

Hi Rogerio,

Thanks for your quick reply!

I already tried with that configuration, but even with that I am getting following errors:

***************************************************************************************************************************

drivers/usb/chipidea/ci_hdrc_imx.c: In function 'ci_hdrc_imx_notify_event':

drivers/usb/chipidea/ci_hdrc_imx.c:226:4: error: implicit declaration of function 'pinctrl_select_state' [-Werror=implicit-function-declaration]

    ret = pinctrl_select_state(data->pinctrl,

    ^

drivers/usb/chipidea/ci_hdrc_imx.c: In function 'ci_hdrc_imx_probe':

drivers/usb/chipidea/ci_hdrc_imx.c:278:2: error: implicit declaration of function 'devm_pinctrl_get' [-Werror=implicit-function-declaration]

  data->pinctrl = devm_pinctrl_get(&pdev->dev);

  ^

drivers/usb/chipidea/ci_hdrc_imx.c:278:16: warning: assignment makes pointer from integer without a cast

  data->pinctrl = devm_pinctrl_get(&pdev->dev);

                ^

drivers/usb/chipidea/ci_hdrc_imx.c:283:3: error: implicit declaration of function 'pinctrl_lookup_state' [-Werror=implicit-function-declaration]

   pinctrl_hsic_idle = pinctrl_lookup_state(data->pinctrl, "idle");

   ^

drivers/usb/chipidea/ci_hdrc_imx.c:283:21: warning: assignment makes pointer from integer without a cast

   pinctrl_hsic_idle = pinctrl_lookup_state(data->pinctrl, "idle");

                     ^

drivers/usb/chipidea/ci_hdrc_imx.c:299:29: warning: assignment makes pointer from integer without a cast

   data->pinctrl_hsic_active = pinctrl_lookup_state(data->pinctrl,

                             ^

cc1: some warnings being treated as errors

make[3]: *** [drivers/usb/chipidea/ci_hdrc_imx.o] Error 1

make[2]: *** [drivers/usb/chipidea] Error 2

make[1]: *** [drivers/usb] Error 2

make: *** [drivers] Error 2

***************************************************************************************************************************

Thanks,

Dhaval

[saurabh206]

Hi Dhaval

You can try following steps

make  imx_v7_defconfig ARCH=arm CROSS_COMPILE=/opt/poky/1.5.1/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi- -j16 uImage LOADADDR=0x10008000

[weideding]

I can make kernel successfully with "bitbake -c compile -f linux-imx".  but I tried to enter kernel-source folder to build only kernel, always fail, any suggest is welcome. Thanks.

source /opt/poky/1.8+snapshot/environment-setup-cortexa7hf-vfp-neon-poky-linux-gnueabi

make zImage  LOADADDR=0x10008000

OR:

make imx_v7_defconfig ARCH=arm CROSS_COMPILE=/opt/poky/1.8+snapshot/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux/arm-poky-linux- zImage LOADADDR=0x10008000

Both ways fail logs:

  CC      init/main.o

  CHK     include/generated/compile.h

  CC      init/version.o

  CC      init/do_mounts.o

  CC      init/do_mounts_rd.o

  CC      init/do_mounts_initrd.o

  LD      init/mounts.o

init/do_mounts_rd.o: In function `nop_flush_icache_all':

do_mounts_rd.c:(.text+0x0): multiple definition of `nop_flush_icache_all'

init/do_mounts.o:do_mounts.c:(.text+0x94): first defined here

init/do_mounts_rd.o: In function `nop_flush_kern_cache_all':

do_mounts_rd.c:(.text+0x4): multiple definition of `nop_flush_kern_cache_all'

init/do_mounts.o:do_mounts.c:(.text+0x98): first defined here

init/do_mounts_rd.o: In function `nop_flush_kern_cache_louis':

do_mounts_rd.c:(.text+0x8): multiple definition of `nop_flush_kern_cache_louis'

init/do_mounts.o:do_mounts.c:(.text+0x9c): first defined here

init/do_mounts_rd.o: In function `nop_flush_user_cache_all':

do_mounts_rd.c:(.text+0xc): multiple definition of `nop_flush_user_cache_all'

init/do_mounts.o:do_mounts.c:(.text+0xa0): first defined here

init/do_mounts_rd.o: In function `nop_flush_user_cache_range':

do_mounts_rd.c:(.text+0x10): multiple definition of `nop_flush_user_cache_range'

init/do_mounts.o:do_mounts.c:(.text+0xa4): first defined here

init/do_mounts_rd.o: In function `nop_coherent_kern_range':

[saurabh206]

Hi Ding

make imx_v7a_defconfig ARCH=arm CROSS_COMPILE=/opt/poky/1.5.1/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi- -j16 uImage LOADADDR=0x10008000

I am using above command, you should use poky version number accordingly.

Thanks

Saurabh

[CodeWarrior4_2M]

The step below did not work for me. Copying the .config into the defconfig is probably not enough. My kernel baked the same with no modifications.

I tried to rename the defconfig into _defconfig under the sources path to see if bitbake would complain during the build. I did not get any errors.

I build the toolchain and downloaded the kernel source directly doing my own build (see here: https://community.freescale.com/docs/DOC-95096#comment-33274 ) as suggested by many on this forum. It works OK now.

------

A new terminal window will open with the kernel menuconfig. Make changes if needed, exit the configmenu and copy the .config generated file to defconfig as following:

$ cp tmp/work/imx6qsabresd-poky-linux-gnueabi/linux-imx/3.0.35-r33.10/git/.config

../sources/meta-fsl-arm/recipes-kernel/linux/linux-imx-3.0.35/mx6/defconfig

[mickaeltoumi]

I believe there is a mistake in the documentation:

$ git branch -b local_branch origin/imx_3.10.17_1.0.0_ga

is actually:

$ git checkout -b local_branch origin/imx_3.10.17_1.0.0_ga

[rogerio_silva]

Updated the doc. Thanks!

[lixuhui112]

Hello Saurabh

    I followed the steps for building the kernel by building using Yocto，but the rebuild zImage  the driver:

│ -> Device Drivers	│
│ -> Network device support (NETDEVICES [=y])	│

│ -> USB Network Adapters │

│ -> Multi-purpose USB Networking Framework (y)   │

| -> Host for RNDIS and activeSync devices  (y)   |

│ -> Device Drivers

| ->USB support   (y)   |

| ->USB Gadget Support  (y) |

| ->USB Gadget Drivers (Ethernet Gadget (with CDC Ethernet support)) (y)  |

| ->RNDIS support (y) |

I added in the menuconfig did not appear in the target. If I direct use

$ bitbake -c menuconfig linux-imx

and

$ bitbake -c cleansstate linux-imx

$ bitbake linux-imx

it is ok

[chandiniindavar]

Hi All,

I tried to build kernel with below steps,

export ARCH=arm

export CROSS_COMPILE=arm-poky-linux-gnueabi-

PATH=/opt/poky/1.8/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi:$PATH

make imx_v7_defconfig,

I got uImage , zimage and .o file for rpmsg but not .ko files.

I am using IMX7d board . please could any one tell me where i did mistake .

build completed without problem .

zimage is not working as original image .it stops in middle. log is below.

CPU:   Freescale i.MX7D rev1.0 at 792 MHz

CPU:   Temperature: can't get valid data!

Reset cause: POR

Board: i.MX7D SABRESD

I2C:   ready

DRAM:  1 GiB

MMC:   FSL_SDHC: 0, FSL_SDHC: 1

*** Warning - bad CRC, using default environment

No panel detected: default to TFT43AB

Display: TFT43AB (480x272)

Video: 480x272x24

In:    serial

Out:   serial

Err:   serial

Found PFUZE300! deviceid 0x30, revid 0x10

mmc0 is current device

Net:   FEC0

Normal Boot

Hit any key to stop autoboot:  0

=> boot

mmc0 is current device

mmc0 is current device

reading boot.scr

** Unable to read file boot.scr **

reading zImage

6025008 bytes read in 528 ms (10.9 MiB/s)

Booting from mmc ...

reading imx7d-sdb.dtb

39438 bytes read in 20 ms (1.9 MiB/s)

Kernel image @ 0x80800000 [ 0x000000 - 0x5bef30 ]

## Flattened Device Tree blob at 83000000

   Booting using the fdt blob at 0x83000000

   Using Device Tree in place at 83000000, end 8300ca0d

Starting kernel ...

Booting Linux on physical CPU 0x0

Linux version 3.14.52 (basavarajuc@UKCTS-012052-linux) (gcc version 4.9.2 (GCC) ) #1 SMP PREEMPT Thu Jan 28 16:37:39 GMT 2016

CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c53c7d

CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache

Machine model: Freescale i.MX7 SabreSD Board

cma: CMA: reserved 320 MiB at ac000000

Memory policy: Data cache writealloc

PERCPU: Embedded 8 pages/cpu @ab736000 s8320 r8192 d16256 u32768

Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 260096

Kernel command line: console=ttymxc0,115200 root=/dev/mmcblk0p2 rootwait rw

PID hash table entries: 4096 (order: 2, 16384 bytes)

Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)

Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)

Memory: 699680K/1048576K available (7499K kernel code, 460K rwdata, 2592K rodata, 392K init, 433K bss, 348896K reserved, 0K highmem)

Virtual kernel memory layout:

    vector  : 0xffff0000 - 0xffff1000   (   4 kB)

    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)

    vmalloc : 0xc0800000 - 0xff000000   (1000 MB)

    lowmem  : 0x80000000 - 0xc0000000   (1024 MB)

    pkmap   : 0x7fe00000 - 0x80000000   (   2 MB)

    modules : 0x7f000000 - 0x7fe00000   (  14 MB)

      .text : 0x80008000 - 0x809e2f54   (10092 kB)

      .init : 0x809e3000 - 0x80a45080   ( 393 kB)

      .data : 0x80a46000 - 0x80ab92c0   ( 461 kB)

       .bss : 0x80ab92cc - 0x80b2591c   ( 434 kB)

SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1

Preemptible hierarchical RCU implementation.

        RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.

RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2

NR_IRQS:16 nr_irqs:16 16

Switching to timer-based delay loop

sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655765682ns

Architected cp15 timer(s) running at 8.00MHz (phys).

sched_clock: 56 bits at 8MHz, resolution 125ns, wraps every 2147483648000ns

Ignoring duplicate/late registration of read_current_timer delay

Console: colour dummy device 80x30

Calibrating delay loop (skipped), value calculated using timer frequency.. 6.00 BogoMIPS (lpj=30000)

pid_max: default: 32768 minimum: 301

Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)

Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)

CPU: Testing write buffer coherency: ok

/cpus/cpu@0 missing clock-frequency property

/cpus/cpu@1 missing clock-frequency property

CPU0: thread -1, cpu 0, socket 0, mpidr 80000000

Setting up static identity map for 0x80723b58 - 0x80723bb0

CPU1: Booted secondary processor

CPU1: thread -1, cpu 1, socket 0, mpidr 80000001

Brought up 2 CPUs

SMP: Total of 2 processors activated (12.00 BogoMIPS).

CPU: All CPU(s) started in SVC mode.

devtmpfs: initialized

VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5

pinctrl core: initialized pinctrl subsystem

regulator-dummy: no parameters

NET: Registered protocol family 16

DMA: preallocated 256 KiB pool for atomic coherent allocations

cpuidle: using governor ladder

cpuidle: using governor menu

Use WDOG1 as reset source

syscon 30340000.iomuxc-gpr: regmap [mem 0x30340000-0x3034ffff] registered

syscon 30360000.anatop: regmap [mem 0x30360000-0x3036ffff] registered

vdd1p0d: 800 <--> 1200 mV at 1000 mV

syscon 30390000.src: regmap [mem 0x30390000-0x3039ffff] registered

DDR type is DDR3!

------------[ cut here ]------------

WARNING: CPU: 0 PID: 1 at arch/arm/mach-imx/pm-imx7.c:1097 imx7d_pm_init+0x5c0/0x66c()

Modules linked in:

CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.52 #1

[<80014a68>] (unwind_backtrace) from [<80011758>] (show_stack+0x10/0x14)

[<80011758>] (show_stack) from [<8071d978>] (dump_stack+0x7c/0xbc)

[<8071d978>] (dump_stack) from [<80032100>] (warn_slowpath_common+0x70/0x8c)

[<80032100>] (warn_slowpath_common) from [<800321b8>] (warn_slowpath_null+0x1c/0x24)

[<800321b8>] (warn_slowpath_null) from [<80a0aa34>] (imx7d_pm_init+0x5c0/0x66c)

[<80a0aa34>] (imx7d_pm_init) from [<80a09a84>] (imx7d_init_machine+0x3c/0xe4)

[<80a09a84>] (imx7d_init_machine) from [<809e62d8>] (customize_machine+0x20/0x40)

[<809e62d8>] (customize_machine) from [<8000889c>] (do_one_initcall+0xf8/0x154)

[<8000889c>] (do_one_initcall) from [<809e3c54>] (kernel_init_freeable+0x138/0x1d8)

[<809e3c54>] (kernel_init_freeable) from [<80719df0>] (kernel_init+0x8/0xe8)

[<80719df0>] (kernel_init) from [<8000e500>] (ret_from_fork+0x14/0x34)

---[ end trace 9e8be753475f047d ]---

------------[ cut here ]------------

WARNING: CPU: 0 PID: 1 at arch/arm/mach-imx/pm-imx7.c:1098 imx7d_pm_init+0x5e8/0x66c()

Modules linked in:

CPU: 0 PID: 1 Comm: swapper/0 Tainted: G        W    3.14.52 #1

[<80014a68>] (unwind_backtrace) from [<80011758>] (show_stack+0x10/0x14)

[<80011758>] (show_stack) from [<8071d978>] (dump_stack+0x7c/0xbc)

[<8071d978>] (dump_stack) from [<80032100>] (warn_slowpath_common+0x70/0x8c)

[<80032100>] (warn_slowpath_common) from [<800321b8>] (warn_slowpath_null+0x1c/0x24)

[<800321b8>] (warn_slowpath_null) from [<80a0aa5c>] (imx7d_pm_init+0x5e8/0x66c)

[<80a0aa5c>] (imx7d_pm_init) from [<80a09a84>] (imx7d_init_machine+0x3c/0xe4)

[<80a09a84>] (imx7d_init_machine) from [<809e62d8>] (customize_machine+0x20/0x40)

[<809e62d8>] (customize_machine) from [<8000889c>] (do_one_initcall+0xf8/0x154)

[<8000889c>] (do_one_initcall) from [<809e3c54>] (kernel_init_freeable+0x138/0x1d8)

[<809e3c54>] (kernel_init_freeable) from [<80719df0>] (kernel_init+0x8/0xe8)

[<80719df0>] (kernel_init) from [<8000e500>] (ret_from_fork+0x14/0x34)

---[ end trace 9e8be753475f047e ]---

------------[ cut here ]------------

WARNING: CPU: 0 PID: 1 at mm/page_alloc.c:2566 __alloc_pages_nodemask+0x42c/0x974()

Modules linked in:

CPU: 0 PID: 1 Comm: swapper/0 Tainted: G        W    3.14.52 #1

[<80014a68>] (unwind_backtrace) from [<80011758>] (show_stack+0x10/0x14)

[<80011758>] (show_stack) from [<8071d978>] (dump_stack+0x7c/0xbc)

[<8071d978>] (dump_stack) from [<80032100>] (warn_slowpath_common+0x70/0x8c)

[<80032100>] (warn_slowpath_common) from [<800321b8>] (warn_slowpath_null+0x1c/0x24)

[<800321b8>] (warn_slowpath_null) from [<800a6a04>] (__alloc_pages_nodemask+0x42c/0x974)

[<800a6a04>] (__alloc_pages_nodemask) from [<800a6f5c>] (__get_free_pages+0x10/0x24)

[<800a6f5c>] (__get_free_pages) from [<80a0aa78>] (imx7d_pm_init+0x604/0x66c)

[<80a0aa78>] (imx7d_pm_init) from [<80a09a84>] (imx7d_init_machine+0x3c/0xe4)

[<80a09a84>] (imx7d_init_machine) from [<809e62d8>] (customize_machine+0x20/0x40)

[<809e62d8>] (customize_machine) from [<8000889c>] (do_one_initcall+0xf8/0x154)

[<8000889c>] (do_one_initcall) from [<809e3c54>] (kernel_init_freeable+0x138/0x1d8)

[<809e3c54>] (kernel_init_freeable) from [<80719df0>] (kernel_init+0x8/0xe8)

[<80719df0>] (kernel_init) from [<8000e500>] (ret_from_fork+0x14/0x34)

---[ end trace 9e8be753475f047f ]---

------------[ cut here ]------------

WARNING: CPU: 0 PID: 1 at arch/arm/mach-imx/pm-imx7.c:1101 imx7d_pm_init+0x620/0x66c()

Modules linked in:

CPU: 0 PID: 1 Comm: swapper/0 Tainted: G        W    3.14.52 #1

[<80014a68>] (unwind_backtrace) from [<80011758>] (show_stack+0x10/0x14)

[<80011758>] (show_stack) from [<8071d978>] (dump_stack+0x7c/0xbc)

[<8071d978>] (dump_stack) from [<80032100>] (warn_slowpath_common+0x70/0x8c)

[<80032100>] (warn_slowpath_common) from [<800321b8>] (warn_slowpath_null+0x1c/0x24)

[<800321b8>] (warn_slowpath_null) from [<80a0aa94>] (imx7d_pm_init+0x620/0x66c)

[<80a0aa94>] (imx7d_pm_init) from [<80a09a84>] (imx7d_init_machine+0x3c/0xe4)

[<80a09a84>] (imx7d_init_machine) from [<809e62d8>] (customize_machine+0x20/0x40)

[<809e62d8>] (customize_machine) from [<8000889c>] (do_one_initcall+0xf8/0x154)

[<8000889c>] (do_one_initcall) from [<809e3c54>] (kernel_init_freeable+0x138/0x1d8)

[<809e3c54>] (kernel_init_freeable) from [<80719df0>] (kernel_init+0x8/0xe8)

[<80719df0>] (kernel_init) from [<8000e500>] (ret_from_fork+0x14/0x34)

---[ end trace 9e8be753475f0480 ]---

failed to find ocotp node

failed to find ocotp node

hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.

hw-breakpoint: maximum watchpoint size is 8 bytes.

imx7d-pinctrl 302c0000.iomuxc-lpsr: initialized IMX pinctrl driver

imx7d-pinctrl 30330000.iomuxc: initialized IMX pinctrl driver

303a0000.gpc supply mipi-phy not found, using dummy regulator

303a0000.gpc supply vcc not found, using dummy regulator

MU is ready for cross core communication!

bio: create slab <bio-0> at 0

mxs-dma: probe of 33000000.dma-apbh failed with error -2

usb_otg1_vbus: 5000 mV

usb_otg2_vbus: 5000 mV

can2-3v3: 3300 mV

vref-1v8: 1800 mV

wlreg_on: 5000 mV

i2c-core: driver [max17135] using legacy suspend method

i2c-core: driver [max17135] using legacy resume method

SCSI subsystem initialized

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

usbphy_nop1.5 supply vcc not found, using dummy regulator

usbphy_nop2.6 supply vcc not found, using dummy regulator

usbphy_nop3.7 supply vcc not found, using dummy regulator

i2c i2c-0: IMX I2C adapter registered

i2c i2c-1: IMX I2C adapter registered

i2c i2c-2: IMX I2C adapter registered

i2c i2c-3: IMX I2C adapter registered

Linux video capture interface: v2.00

pps_core: LinuxPPS API ver. 1 registered

pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>

PTP clock support registered

MIPI CSI2 driver module loaded

Advanced Linux Sound Architecture Driver Initialized.

Bluetooth: Core ver 2.18

NET: Registered protocol family 31

Bluetooth: HCI device and connection manager initialized

Bluetooth: HCI socket layer initialized

Bluetooth: L2CAP socket layer initialized

Bluetooth: SCO socket layer initialized

cfg80211: Calling CRDA to update world regulatory domain

Switched to clocksource arch_sys_counter

NET: Registered protocol family 2

TCP established hash table entries: 8192 (order: 3, 32768 bytes)

TCP bind hash table entries: 8192 (order: 4, 65536 bytes)

TCP: Hash tables configured (established 8192 bind 8192)

TCP: reno registered

UDP hash table entries: 512 (order: 2, 16384 bytes)

UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)

NET: Registered protocol family 1

RPC: Registered named UNIX socket transport module.

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

RPC: Registered tcp NFSv4.1 backchannel transport module.

imx rpmsg driver is registered.

Bus freq driver module loaded

futex hash table entries: 512 (order: 3, 32768 bytes)

VFS: Disk quotas dquot_6.5.2

Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)

NFS: Registering the id_resolver key type

Key type id_resolver registered

Key type id_legacy registered

jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.

fuse init (API version 7.22)

msgmni has been set to 2006

io scheduler noop registered

io scheduler deadline registered

io scheduler cfq registered (default)

backlight.8 supply power not found, using dummy regulator

MIPI DSI driver module loaded

MIPI DSI driver module loaded

sii902x 2-0039: No reset pin found

sii902x 2-0039: Can not read edid

30730000.lcdif supply lcd not found, using dummy regulator

mxsfb 30730000.lcdif: failed to find mxc display driver

Console: switching to colour frame buffer device 60x34

mxsfb 30730000.lcdif: initialized

imx-sdma 30bd0000.sdma: no iram assigned, using external mem

imx-sdma 30bd0000.sdma: no event needs to be remapped

imx-sdma 30bd0000.sdma: loaded firmware 4.1

imx-sdma 30bd0000.sdma: initialized

pfuze100-regulator 0-0008: Full layer: 1, Metal layer: 0

pfuze100-regulator 0-0008: FAB: 0, FIN: 0

pfuze100-regulator 0-0008: pfuze3000 found.

SW1A: 700 <--> 1425 mV at 1100 mV

SW1B: 700 <--> 1475 mV at 1000 mV

SW2: 1500 <--> 1850 mV at 1800 mV

SW3: 900 <--> 1650 mV at 1350 mV

SWBST: 5000 <--> 5150 mV at 5000 mV

VSNVS: 1000 <--> 3000 mV at 3000 mV

VREFDDR: 750 mV

VLDO1: 1800 <--> 3300 mV at 1800 mV

VLDO2: 800 <--> 1550 mV at 1500 mV

VCCSD: 2850 <--> 3300 mV at 3300 mV

V33: 2850 <--> 3300 mV at 3300 mV

VLDO3: 1800 <--> 3300 mV at 3300 mV

VLDO4: 1800 <--> 3300 mV at 2800 mV

Serial: IMX driver

30860000.serial: ttymxc0 at MMIO 0x30860000 (irq = 58, base_baud = 5000000) is a IMX

console [ttymxc0] enabled

30a70000.serial: ttymxc4 at MMIO 0x30a70000 (irq = 62, base_baud = 5000000) is a IMX

30a80000.serial: ttymxc5 at MMIO 0x30a80000 (irq = 48, base_baud = 5000000) is a IMX

serial: Freescale lpuart driver

imx sema4 driver is registered.

[drm] Initialized drm 1.1.0 20060810

[drm] Initialized vivante 1.0.0 20120216 on minor 0

brd: module loaded

loop: module loaded

spi_gpio spi4.16: gpio-miso property not found, switching to no-rx mode

CAN device driver interface

flexcan 30a10000.can: device registered (reg_base=f5a10000, irq=143)

30be0000.ethernet supply phy not found, using dummy regulator

pps pps0: new PPS source ptp0

libphy: fec_enet_mii_bus: probed

fec 30be0000.ethernet eth0: registered PHC device 0

ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver

ehci-mxc: Freescale On-Chip EHCI Host driver

usbcore: registered new interface driver usb-storage

usbcore: registered new interface driver usb_ehset_test

30b10200.usbmisc supply vbus-wakeup not found, using dummy regulator

30b20200.usbmisc supply vbus-wakeup not found, using dummy regulator

30b30200.usbmisc supply vbus-wakeup not found, using dummy regulator

ci_hdrc ci_hdrc.1: EHCI Host Controller

ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 1

ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00

hub 1-0:1.0: USB hub found

hub 1-0:1.0: 1 port detected

mousedev: PS/2 mouse device common for all mice

snvs_pwrkey 30370000.snvs-pwrkey: can't get snvs clock

input: 30370000.snvs-pwrkey as /devices/soc.2/30000000.aips-bus/30370000.snvs-pwrkey/input/input0

snvs_pwrkey 30370000.snvs-pwrkey: i.MX snvs powerkey probed

i2c-core: driver [isl29023] using legacy suspend method

i2c-core: driver [isl29023] using legacy resume method

snvs_rtc 30370034.snvs-rtc-lp: can't get snvs-rtc clock

snvs_rtc 30370034.snvs-rtc-lp: rtc core: registered 30370034.snvs-rtc-l as rtc0

i2c /dev entries driver

IR NEC protocol handler initialized

IR RC5(x) protocol handler initialized

IR RC6 protocol handler initialized

IR JVC protocol handler initialized

IR Sony protocol handler initialized

IR RC5 (streamzap) protocol handler initialized

IR SANYO protocol handler initialized

IR MCE Keyboard/mouse protocol handler initialized

pxp-v4l2 pxp_v4l2_out.9: initialized

i2c-core: driver [mag3110] using legacy suspend method

i2c-core: driver [mag3110] using legacy resume method

imx2-wdt 30280000.wdog: IMX2+ Watchdog Timer enabled. timeout=60s (nowayout=0)

Bluetooth: HCI UART driver ver 2.2

Bluetooth: HCI H4 protocol initialized

Bluetooth: HCI BCSP protocol initialized

Bluetooth: HCIATH3K protocol initialized

usbcore: registered new interface driver bcm203x

usbcore: registered new interface driver btusb

usbcore: registered new interface driver ath3k

sdhci: Secure Digital Host Controller Interface driver

sdhci: Copyright(c) Pierre Ossman

sdhci-pltfm: SDHCI platform and OF driver helper

sdhci-esdhc-imx 30b40000.usdhc: could not get ultra high speed state, work on normal mode

mmc0: no vqmmc regulator found

mmc0: no vmmc regulator found

mmc0: SDHCI controller on 30b40000.usdhc [30b40000.usdhc] using ADMA

sdhci-esdhc-imx 30b50000.usdhc: assigned as wifi host

mmc1: no vqmmc regulator found

mmc1: no vmmc regulator found

mmc0: new SD card at address a77f

mmcblk0: mmc0:a77f SU01G 968 MiB

mmcblk0: p1 p2

mmc1: SDHCI controller on 30b50000.usdhc [30b50000.usdhc] using ADMA

mmc2: no vqmmc regulator found

mmc2: no vmmc regulator found

mmc2: SDHCI controller on 30b60000.usdhc [30b60000.usdhc] using ADMA

Job Ring Device allocation for transform failed

usbcore: registered new interface driver usbhid

usbhid: USB HID core driver

Thanks in advance .

[saurabh206]

To build module use following command.

make ARCH=arm  CROSS_COMPILE=arm-poky-linux-gnueabi- modules_install INSTALL_MOD_PATH=../modules

[chandiniindavar]

Hi saurabh

Thanks for your replay .but zImage not running in my board [I am using IMX7D]

I followed following steps

1.clean evertthing

$ make distclean

2.install variables .

$ source /opt/poky/1.8/environment-setup-armv7a-vfp-neon-poky-linux-gnueabi

3.configuration written to .config

$ make imx_v7_defconfig

4.run make

$ make ARCH=arm  CROSS_COMPILE=arm-poky-linux-gnueabi-

I got zImage , i copied to my sd card and it start running but stops below

Starting kernel ...

Booting Linux on physical CPU 0x0

Linux version 3.14.52 (basavarajuc@UKCTS-012052-linux) (gcc version 4.9.2 (GCC) ) #1 SMP PREEMPT Thu Jan 28 16:37:39 GMT 2016

CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c53c7d

CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache

Machine model: Freescale i.MX7 SabreSD Board

cma: CMA: reserved 320 MiB at ac000000

Memory policy: Data cache writealloc

PERCPU: Embedded 8 pages/cpu @ab734000 s8320 r8192 d16256 u32768

Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 260096

Kernel command line: console=ttymxc0,115200 root=/dev/mmcblk0p2 rootwait rw

PID hash table entries: 4096 (order: 2, 16384 bytes)

Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)

Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)

Memory: 699668K/1048576K available (7499K kernel code, 460K rwdata, 2592K rodata, 392K init, 433K bss, 348908K reserved, 0K highmem)

Virtual kernel memory layout:

    vector  : 0xffff0000 - 0xffff1000   (   4 kB)

    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)

    vmalloc : 0xc0800000 - 0xff000000   (1000 MB)

    lowmem  : 0x80000000 - 0xc0000000   (1024 MB)

    pkmap   : 0x7fe00000 - 0x80000000   (   2 MB)

    modules : 0x7f000000 - 0x7fe00000   (  14 MB)

      .text : 0x80008000 - 0x809e2f54   (10092 kB)

      .init : 0x809e3000 - 0x80a45080   ( 393 kB)

      .data : 0x80a46000 - 0x80ab92c0   ( 461 kB)

       .bss : 0x80ab92cc - 0x80b2591c   ( 434 kB)

SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1

Preemptible hierarchical RCU implementation.

        RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.

RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2

NR_IRQS:16 nr_irqs:16 16

Switching to timer-based delay loop

sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655765682ns

Architected cp15 timer(s) running at 8.00MHz (phys).

sched_clock: 56 bits at 8MHz, resolution 125ns, wraps every 2147483648000ns

Ignoring duplicate/late registration of read_current_timer delay

Console: colour dummy device 80x30

Calibrating delay loop (skipped), value calculated using timer frequency.. 6.00 BogoMIPS (lpj=30000)

pid_max: default: 32768 minimum: 301

Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)

Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)

CPU: Testing write buffer coherency: ok

/cpus/cpu@0 missing clock-frequency property

/cpus/cpu@1 missing clock-frequency property

CPU0: thread -1, cpu 0, socket 0, mpidr 80000000

Setting up static identity map for 0x80723b58 - 0x80723bb0

CPU1: Booted secondary processor

CPU1: thread -1, cpu 1, socket 0, mpidr 80000001

Brought up 2 CPUs

SMP: Total of 2 processors activated (12.00 BogoMIPS).

CPU: All CPU(s) started in SVC mode.

devtmpfs: initialized

VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5

pinctrl core: initialized pinctrl subsystem

regulator-dummy: no parameters

NET: Registered protocol family 16

DMA: preallocated 256 KiB pool for atomic coherent allocations

cpuidle: using governor ladder

cpuidle: using governor menu

Use WDOG1 as reset source

syscon 30340000.iomuxc-gpr: regmap [mem 0x30340000-0x3034ffff] registered

syscon 30350000.ocotp-ctrl: regmap [mem 0x30350000-0x3035ffff] registered

syscon 30360000.anatop: regmap [mem 0x30360000-0x3036ffff] registered

vdd1p0d: 800 <--> 1200 mV at 1000 mV

syscon 30390000.src: regmap [mem 0x30390000-0x3039ffff] registered

DDR type is DDR3!

failed to find ocotp node

failed to find ocotp node

hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.

hw-breakpoint: maximum watchpoint size is 8 bytes.

imx7d-pinctrl 302c0000.iomuxc-lpsr: initialized IMX pinctrl driver

imx7d-pinctrl 30330000.iomuxc: initialized IMX pinctrl driver

303a0000.gpc supply vcc not found, using dummy regulator

MU is ready for cross core communication!

bio: create slab <bio-0> at 0

mxs-dma 33000000.dma-apbh: initialized

usb_otg1_vbus: 5000 mV

usb_otg2_vbus: 5000 mV

can2-3v3: 3300 mV

vref-1v8: 1800 mV

platform 4.regulator: Driver reg-fixed-voltage requests probe deferral

VDD_SD1: 3300 mV

wlreg_on: 5000 mV

i2c-core: driver [max17135] using legacy suspend method

i2c-core: driver [max17135] using legacy resume method

SCSI subsystem initialized

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

usbphy_nop1.8 supply vcc not found, using dummy regulator

usbphy_nop2.9 supply vcc not found, using dummy regulator

usbphy_nop3.10 supply vcc not found, using dummy regulator

i2c i2c-0: IMX I2C adapter registered

i2c i2c-1: IMX I2C adapter registered

i2c i2c-2: IMX I2C adapter registered

i2c i2c-3: IMX I2C adapter registered

Linux video capture interface: v2.00

pps_core: LinuxPPS API ver. 1 registered

pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>

PTP clock support registered

MIPI CSI2 driver module loaded

Advanced Linux Sound Architecture Driver Initialized.

Bluetooth: Core ver 2.18

NET: Registered protocol family 31

Bluetooth: HCI device and connection manager initialized

Bluetooth: HCI socket layer initialized

Bluetooth: L2CAP socket layer initialized

Bluetooth: SCO socket layer initialized

cfg80211: Calling CRDA to update world regulatory domain

Switched to clocksource arch_sys_counter

NET: Registered protocol family 2

TCP established hash table entries: 8192 (order: 3, 32768 bytes)

TCP bind hash table entries: 8192 (order: 4, 65536 bytes)

TCP: Hash tables configured (established 8192 bind 8192)

TCP: reno registered

UDP hash table entries: 512 (order: 2, 16384 bytes)

UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)

NET: Registered protocol family 1

RPC: Registered named UNIX socket transport module.

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

RPC: Registered tcp NFSv4.1 backchannel transport module.

imx rpmsg driver is registered.

Bus freq driver module loaded

futex hash table entries: 512 (order: 3, 32768 bytes)

VFS: Disk quotas dquot_6.5.2

Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)

NFS: Registering the id_resolver key type

Key type id_resolver registered

Key type id_legacy registered

jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.

fuse init (API version 7.22)

msgmni has been set to 2006

io scheduler noop registered

io scheduler deadline registered

io scheduler cfq registered (default)

backlight.11 supply power not found, using dummy regulator

MIPI DSI driver module loaded

MIPI DSI driver module loaded

sii902x 2-0039: No reset pin found

sii902x 2-0039: Can not read edid

30730000.lcdif supply lcd not found, using dummy regulator

mxsfb 30730000.lcdif: failed to find mxc display driver

Console: switching to colour frame buffer device 60x34

mxsfb 30730000.lcdif: initialized

imx-sdma 30bd0000.sdma: no event needs to be remapped

imx-sdma 30bd0000.sdma: loaded firmware 4.1

imx-sdma 30bd0000.sdma: initialized

pfuze100-regulator 0-0008: Full layer: 1, Metal layer: 0

pfuze100-regulator 0-0008: FAB: 0, FIN: 0

pfuze100-regulator 0-0008: pfuze3000 found.

SW1A: 700 <--> 3300 mV at 1100 mV

SW1B: 700 <--> 1475 mV at 1000 mV

SW2: 1500 <--> 1850 mV at 1800 mV

SW3: 900 <--> 1650 mV at 1350 mV

SWBST: 5000 <--> 5150 mV at 5000 mV

VSNVS: 1000 <--> 3000 mV at 3000 mV

VREFDDR: 750 mV

VLDO1: 1800 <--> 3300 mV at 1800 mV

VLDO2: 800 <--> 1550 mV at 1500 mV

VCCSD: 2850 <--> 3300 mV at 3300 mV

V33: 2850 <--> 3300 mV at 3300 mV

VLDO3: 1800 <--> 3300 mV at 3300 mV

VLDO4: 1800 <--> 3300 mV at 2800 mV

Serial: IMX driver

30860000.serial: ttymxc0 at MMIO 0x30860000 (irq = 58, base_baud = 1500000) is a IMX

console [ttymxc0] enabled

30a70000.serial: ttymxc4 at MMIO 0x30a70000 (irq = 62, base_baud = 5000000) is a IMX

30a80000.serial: ttymxc5 at MMIO 0x30a80000 (irq = 48, base_baud = 5000000) is a IMX

serial: Freescale lpuart driver

imx sema4 driver is registered.

[drm] Initialized drm 1.1.0 20060810

[drm] Initialized vivante 1.0.0 20120216 on minor 0

brd: module loaded

loop: module loaded

input: fxos8700 as /devices/soc.2/30800000.aips-bus/30a30000.i2c/i2c-1/1-001e/input/input0

fxos8700 device driver probe successfully

input: fxas2100x as /devices/soc.2/30800000.aips-bus/30a30000.i2c/i2c-1/1-0020/input/input1

fxas2100x 1-0020: fxas2100x device driver probe successfully

spi_gpio spi4.20: gpio-miso property not found, switching to no-rx mode

CAN device driver interface

flexcan 30a10000.can: device registered (reg_base=f5a10000, irq=143)

30be0000.ethernet supply phy not found, using dummy regulator

pps pps0: new PPS source ptp0

libphy: fec_enet_mii_bus: probed

fec 30be0000.ethernet eth0: registered PHC device 0

ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver

ehci-mxc: Freescale On-Chip EHCI Host driver

usbcore: registered new interface driver usb-storage

usbcore: registered new interface driver usb_ehset_test

30b10200.usbmisc supply vbus-wakeup not found, using dummy regulator

30b20200.usbmisc supply vbus-wakeup not found, using dummy regulator

30b30200.usbmisc supply vbus-wakeup not found, using dummy regulator

ci_hdrc ci_hdrc.1: EHCI Host Controller

ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 1

ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00

hub 1-0:1.0: USB hub found

hub 1-0:1.0: 1 port detected

mousedev: PS/2 mouse device common for all mice

snvs_pwrkey 30370000.snvs-pwrkey: can't get snvs clock

input: 30370000.snvs-pwrkey as /devices/soc.2/30000000.aips-bus/30370000.snvs-pwrkey/input/input2

snvs_pwrkey 30370000.snvs-pwrkey: i.MX snvs powerkey probed

i2c-core: driver [isl29023] using legacy suspend method

i2c-core: driver [isl29023] using legacy resume method

read mpl3115 chip id 0xc4

input: mpl3115 as /devices/virtual/input/input3

mpl3115 device driver probe successfully

snvs_rtc 30370034.snvs-rtc-lp: can't get snvs-rtc clock

snvs_rtc 30370034.snvs-rtc-lp: rtc core: registered 30370034.snvs-rtc-l as rtc0

i2c /dev entries driver

IR NEC protocol handler initialized

IR RC5(x) protocol handler initialized

IR RC6 protocol handler initialized

IR JVC protocol handler initialized

IR Sony protocol handler initialized

IR RC5 (streamzap) protocol handler initialized

IR SANYO protocol handler initialized

IR MCE Keyboard/mouse protocol handler initialized

pxp-v4l2 pxp_v4l2_out.12: initialized

i2c-core: driver [mag3110] using legacy suspend method

i2c-core: driver [mag3110] using legacy resume method

imx2-wdt 30280000.wdog: IMX2+ Watchdog Timer enabled. timeout=60s (nowayout=0)

Bluetooth: HCI UART driver ver 2.2

Bluetooth: HCI H4 protocol initialized

Bluetooth: HCI BCSP protocol initialized

Bluetooth: HCIATH3K protocol initialized

usbcore: registered new interface driver bcm203x

usbcore: registered new interface driver btusb

usbcore: registered new interface driver ath3k

sdhci: Secure Digital Host Controller Interface driver

sdhci: Copyright(c) Pierre Ossman

sdhci-pltfm: SDHCI platform and OF driver helper

mmc0: no vqmmc regulator found

mmc0: SDHCI controller on 30b40000.usdhc [30b40000.usdhc] using ADMA

sdhci-esdhc-imx 30b50000.usdhc: assigned as wifi host

mmc1: no vqmmc regulator found

mmc1: no vmmc regulator found

mmc1: SDHCI controller on 30b50000.usdhc [30b50000.usdhc] using ADMA

mmc2: no vqmmc regulator found

mmc2: no vmmc regulator found

mmc0: new SD card at address a77f

mmcblk0: mmc0:a77f SU01G 968 MiB

mmcblk0: p1 p2

mmc2: SDHCI controller on 30b60000.usdhc [30b60000.usdhc] using ADMA

caam 30900000.caam: Instantiated RNG4 SH0

caam 30900000.caam: Instantiated RNG4 SH1

caam 30900000.caam: device ID = 0x0a160300 (Era 8)

caam 30900000.caam: job rings = 3, qi = 0

caam algorithms registered in /proc/crypto

caam_jr 30901000.jr0: registering rng-caam

platform caam_sm: blkkey_ex: 8 keystore units available

platform caam_sm: 64-bit clear key:

platform caam_sm: [0000] 00 01 02 03 04 0f 06 07

platform caam_sm: 64-bit black key:

platform caam_sm: [0000] 93 cb b6 73 c2 c1 dc e7

platform caam_sm: [0008] 99 7b 89 07 71 73 e3 24

platform caam_sm: 128-bit clear key:

platform caam_sm: [0000] 00 01 02 03 04 0f 06 07

platform caam_sm: [0008] 08 09 0a 0b 0c 0d 0e 0f

platform caam_sm: 128-bit black key:

platform caam_sm: [0000] 9b 3d 8e 22 13 79 04 8d

platform caam_sm: [0008] f7 57 10 07 f5 b9 75 fc

platform caam_sm: 192-bit clear key:

platform caam_sm: [0000] 00 01 02 03 04 0f 06 07

platform caam_sm: [0008] 08 09 0a 0b 0c 0d 0e 0f

platform caam_sm: [0016] 10 11 12 13 14 15 16 17

platform caam_sm: 192-bit black key:

platform caam_sm: [0000] 20 5f 25 0a 39 d1 23 40

platform caam_sm: [0008] d6 65 be 13 03 53 02 53

platform caam_sm: [0016] 14 7c 71 e2 cd 18 e2 e5

platform caam_sm: [0024] f9 90 88 a3 e8 16 01 b8

platform caam_sm: 256-bit clear key:

platform caam_sm: [0000] 00 01 02 03 04 0f 06 07

platform caam_sm: [0008] 08 09 0a 0b 0c 0d 0e 0f

platform caam_sm: [0016] 10 11 12 13 14 15 16 17

platform caam_sm: [0024] 18 19 1a 1b 1c 1d 1e 1f

platform caam_sm: 256-bit black key:

platform caam_sm: [0000] 0f 23 ef 13 93 96 c1 70

platform caam_sm: [0008] 4b f9 2c 20 81 90 20 ea

platform caam_sm: [0016] 10 ab 2b 88 85 f8 9e b1

platform caam_sm: [0024] 31 ed a7 77 5b e3 5d dd

platform caam_sm: 64-bit unwritten blob:

platform caam_sm: [0000] 00 00 00 00 00 00 00 00

platform caam_sm: [0008] 00 00 00 00 00 00 00 00

platform caam_sm: [0016] 00 00 00 00 00 00 00 00

platform caam_sm: [0024] 00 00 00 00 00 00 00 00

platform caam_sm: [0032] 00 00 00 00 00 00 00 00

platform caam_sm: [0040] 00 00 00 00 00 00 00 00

platform caam_sm: [0048] 00 00 00 00 00 00 00 00

platform caam_sm: [0056] 00 00 00 00 00 00 00 00

platform caam_sm: [0064] 00 00 00 00 00 00 00 00

platform caam_sm: [0072] 00 00 00 00 00 00 00 00

platform caam_sm: [0080] 00 00 00 00 00 00 00 00

platform caam_sm: [0088] 00 00 00 00 00 00 00 00

platform caam_sm: 128-bit unwritten blob:

platform caam_sm: [0000] 00 00 00 00 00 00 00 00

platform caam_sm: [0008] 00 00 00 00 00 00 00 00

platform caam_sm: [0016] 00 00 00 00 00 00 00 00

platform caam_sm: [0024] 00 00 00 00 00 00 00 00

platform caam_sm: [0032] 00 00 00 00 00 00 00 00

platform caam_sm: [0040] 00 00 00 00 00 00 00 00

platform caam_sm: [0048] 00 00 00 00 00 00 00 00

platform caam_sm: [0056] 00 00 00 00 00 00 00 00

platform caam_sm: [0064] 00 00 00 00 00 00 00 00

platform caam_sm: [0072] 00 00 00 00 00 00 00 00

platform caam_sm: [0080] 00 00 00 00 00 00 00 00

platform caam_sm: [0088] 00 00 00 00 00 00 00 00

platform caam_sm: 196-bit unwritten blob:

platform caam_sm: [0000] 00 00 00 00 00 00 00 00

platform caam_sm: [0008] 00 00 00 00 00 00 00 00

platform caam_sm: [0016] 00 00 00 00 00 00 00 00

platform caam_sm: [0024] 00 00 00 00 00 00 00 00

platform caam_sm: [0032] 00 00 00 00 00 00 00 00

platform caam_sm: [0040] 00 00 00 00 00 00 00 00

platform caam_sm: [0048] 00 00 00 00 00 00 00 00

platform caam_sm: [0056] 00 00 00 00 00 00 00 00

platform caam_sm: [0064] 00 00 00 00 00 00 00 00

platform caam_sm: [0072] 00 00 00 00 00 00 00 00

platform caam_sm: [0080] 00 00 00 00 00 00 00 00

platform caam_sm: [0088] 00 00 00 00 00 00 00 00

platform caam_sm: 256-bit unwritten blob:

platform caam_sm: [0000] 00 00 00 00 00 00 00 00

platform caam_sm: [0008] 00 00 00 00 00 00 00 00

platform caam_sm: [0016] 00 00 00 00 00 00 00 00

platform caam_sm: [0024] 00 00 00 00 00 00 00 00

platform caam_sm: [0032] 00 00 00 00 00 00 00 00

platform caam_sm: [0040] 00 00 00 00 00 00 00 00

platform caam_sm: [0048] 00 00 00 00 00 00 00 00

platform caam_sm: [0056] 00 00 00 00 00 00 00 00

platform caam_sm: [0064] 00 00 00 00 00 00 00 00

platform caam_sm: [0072] 00 00 00 00 00 00 00 00

platform caam_sm: [0080] 00 00 00 00 00 00 00 00

platform caam_sm: [0088] 00 00 00 00 00 00 00 00

platform caam_sm: 64-bit black key in blob:

platform caam_sm: [0000] af 46 8f 41 c4 31 42 ec

platform caam_sm: [0008] b3 96 0b 74 7e 68 05 b6

platform caam_sm: [0016] 27 91 f4 22 39 38 f4 33

platform caam_sm: [0024] 00 4c 65 ca 2c ed 21 b2

platform caam_sm: [0032] 4f cf 06 a6 9e 9f 25 fe

platform caam_sm: [0040] d0 8c 01 10 fd b0 7f f6

platform caam_sm: [0048] 79 c4 42 bb 02 2e dd c2

platform caam_sm: [0056] 00 00 00 00 00 00 00 00

platform caam_sm: [0064] 00 00 00 00 00 00 00 00

platform caam_sm: [0072] 00 00 00 00 00 00 00 00

platform caam_sm: [0080] 00 00 00 00 00 00 00 00

platform caam_sm: [0088] 00 00 00 00 00 00 00 00

platform caam_sm: 128-bit black key in blob:

platform caam_sm: [0000] ad 07 f1 a8 87 71 86 38

platform caam_sm: [0008] f4 62 6e c7 c7 f0 74 69

platform caam_sm: [0016] 73 c7 f7 92 0c 43 e1 2d

platform caam_sm: [0024] 17 50 3b 74 f4 e7 4c 89

platform caam_sm: [0032] 45 62 fb ba 59 bc 9e ea

platform caam_sm: [0040] 91 56 f3 91 97 03 2b a3

platform caam_sm: [0048] 1b c7 3f b3 11 46 2a a9

platform caam_sm: [0056] 6f af e5 4c f0 76 72 8e

platform caam_sm: [0064] 00 00 00 00 00 00 00 00

platform caam_sm: [0072] 00 00 00 00 00 00 00 00

platform caam_sm: [0080] 00 00 00 00 00 00 00 00

platform caam_sm: [0088] 00 00 00 00 00 00 00 00

platform caam_sm: 192-bit black key in blob:

platform caam_sm: [0000] b6 ea c9 44 1b 06 01 4a

platform caam_sm: [0008] d2 5a a0 61 e0 56 0f ff

platform caam_sm: [0016] db b6 b8 78 da 63 52 e6

platform caam_sm: [0024] 23 5c f7 97 3d af e2 60

platform caam_sm: [0032] aa 57 3c f0 5d 40 54 c3

platform caam_sm: [0040] 44 b3 4f 05 3b 76 16 e6

platform caam_sm: [0048] d7 74 9c a0 62 0f 2f dc

platform caam_sm: [0056] 03 53 96 9e 34 00 55 93

platform caam_sm: [0064] d0 b0 b4 fd 5b 66 58 93

platform caam_sm: [0072] 00 00 00 00 00 00 00 00

platform caam_sm: [0080] 00 00 00 00 00 00 00 00

platform caam_sm: [0088] 00 00 00 00 00 00 00 00

platform caam_sm: 256-bit black key in blob:

platform caam_sm: [0000] 76 46 0f f3 de 76 ef b0

platform caam_sm: [0008] 4e 4a 27 d5 7f 1b 0b f2

platform caam_sm: [0016] 9a 5d e1 6d b4 f9 df 21

platform caam_sm: [0024] 8b 94 77 80 d7 cb dc 34

platform caam_sm: [0032] 93 82 83 b5 02 52 53 82

platform caam_sm: [0040] 33 15 31 11 67 48 57 f3

platform caam_sm: [0048] e1 4d 78 20 1c ec fe d5

platform caam_sm: [0056] 2b d2 28 79 35 01 91 3d

platform caam_sm: [0064] 6e f8 3c 0e 1e 23 63 8d

platform caam_sm: [0072] 47 2a 09 24 a1 a3 ba 1d

platform caam_sm: [0080] 00 00 00 00 00 00 00 00

platform caam_sm: [0088] 00 00 00 00 00 00 00 00

platform caam_sm: restored 64-bit black key:

platform caam_sm: [0000] 6e dc c9 9d e2 d9 99 9e

platform caam_sm: [0008] fb ef 17 6a ff 72 e8 a1

platform caam_sm: restored 128-bit black key:

platform caam_sm: [0000] 9b 3d 8e 22 13 79 04 8d

platform caam_sm: [0008] f7 57 10 07 f5 b9 75 fc

platform caam_sm: restored 192-bit black key:

platform caam_sm: [0000] 20 5f 25 0a 39 d1 23 40

platform caam_sm: [0008] d6 65 be 13 03 53 02 53

platform caam_sm: [0016] 23 ea 1f 67 b1 4d 98 1a

platform caam_sm: [0024] 1c f8 ed d5 30 96 07 fe

platform caam_sm: restored 256-bit black key:

platform caam_sm: [0000] 0f 23 ef 13 93 96 c1 70

platform caam_sm: [0008] 4b f9 2c 20 81 90 20 ea

platform caam_sm: [0016] 10 ab 2b 88 85 f8 9e b1

platform caam_sm: [0024] 31 ed a7 77 5b e3 5d dd

snvs-secvio 30370000.caam-snvs: can't get snvs clock

snvs-secvio 30370000.caam-snvs: violation handlers armed - non-secure state

usbcore: registered new interface driver usbhid

usbhid: USB HID core driver

coresight-tmc 30086000.etr: TMC initialized

coresight-tmc 30084000.etf: TMC initialized

coresight-tpiu 30087000.tpiu: TPIU initialized

coresight-funnel 30083000.funnel: FUNNEL initialized

coresight-funnel 30041000.funnel: FUNNEL initialized

coresight-replicator replicator.1: REPLICATOR initialized

coresight-etm3x 3007c000.etm: ETM initialized

coresight-etm3x 3007d000.etm: ETM initialized

imx-wm8960 sound.18: wm8960-hifi <-> 308a0000.sai mapping ok

imx-sii902x sound-hdmi.19: snd-soc-dummy-dai <-> 308a0000.sai mapping ok

NET: Registered protocol family 26

TCP: cubic registered

NET: Registered protocol family 10

sit: IPv6 over IPv4 tunneling driver

NET: Registered protocol family 17

can: controller area network core (rev 20120528 abi 9)

NET: Registered protocol family 29

can: raw protocol (rev 20120528)

can: broadcast manager protocol (rev 20120528 t)

can: netlink gateway (rev 20130117) max_hops=1

Bluetooth: RFCOMM TTY layer initialized

Bluetooth: RFCOMM socket layer initialized

Bluetooth: RFCOMM ver 1.11

Bluetooth: BNEP (Ethernet Emulation) ver 1.3

Bluetooth: BNEP filters: protocol multicast

Bluetooth: BNEP socket layer initialized

Bluetooth: HIDP (Human Interface Emulation) ver 1.2

Bluetooth: HIDP socket layer initialized

8021q: 802.1Q VLAN Support v1.8

Key type dns_resolver registered

cpu cpu0: dev_pm_opp_get_opp_count: device OPP not found (-19)

SWBST: disabling

wlreg_on: disabling

can2-3v3: disabling

usb_otg1_vbus: disabling

regulator-dummy: disabling

imx mcc test is registered.

MPCIE_3V3: 3300 mV

snvs_rtc 30370034.snvs-rtc-lp: setting system clock to 1970-01-01 00:00:01 UTC (1)

ALSA device list:

  #0: wm8960-audio

  #1: sii902x-audio

random: nonblocking pool is initialized

kjournald starting.  Commit interval 5 seconds

EXT3-fs (mmcblk0p2): using internal journal

EXT3-fs (mmcblk0p2): recovery complete

EXT3-fs (mmcblk0p2): mounted filesystem with ordered data mode

VFS: Mounted root (ext3 filesystem) on device 179:2.

devtmpfs: mounted

Freeing unused kernel memory: 392K (809e3000 - 80a45000)

INIT: version 2.88 booting

Starting udev

udev: Not using udev cache because of changes detected in the following files:

udev:     /proc/version /proc/cmdline /proc/devices

udev:     lib/udev/rules.d/* etc/udev/rules.d/*

udev: The udev cache will be regenerated. To identify the detected changes,

udev: compare the cached sysconf at   /etc/udev/cache.data

udev: against the current sysconf at  /dev/shm/udev.cache

udevd[170]: starting version 182

bootlogd: cannot allocate pseudo tty: No such file or directory

Populating dev cache

ALSA: Restoring mixer settings..

have any idea about this problem ?

how can i get working zImage .?

Thanks in advance

[chandiniindavar]

I got it working .

Problem was i was using old build dtb files ..

now SCP is not working .

$ scp /mnt/hgfs/VM_SHARE1/hello/hello root@10.29.99.114:/home/root

ssh: connect to host 10.29.99.114 port 22: Connection refused

lost connection.

any one have idea about this.

[hasithaperera]

I am going to compile kernel manually for yocto Linux environment.

1. I download recipe file from  https://github.com/Freescale/meta-fsl-arm-extra

and bitbake 3.14.28 kernel without any problem and install it to on sabre lite board.

2. Then i try to compile 3.14.28 kernel manually.

     . Install toolchain to YOCT environment

     . get linux-3.14.tar.xz source from ~/fsl-release-bsp/downloads

     .Extract it

     . go to linux-3.14 directory and run following commands

          $export ARCH=arm

          $export CROSS_COMPILE=arm-poky-linux-gnueabi-

          $make imx_v6_v7_defconfig

          $export PATH=$PATH:/opt/poky/1.6.2/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi

          $make

          $make uImage LOADADDR=0x10008000

     . Copy images to boot partition of SD card of sabre lite device.

     $cp arch/arm/boot/uImage arch/arm/boot/dts/imx6q-sabrelite.dtb <boot partition>

All steps work fine and but have a problem with a display.

I have 2 display units (sabre lite display and HDMI monitor )

In step 1 we have display on HDMI monitor only.

In step 2 we have display on sabre lite display only.

I need to get display on HDMI monitor in step 2 .

Ultimate goal of my work is compile latest kernel and install it on SD card of sabre lite device with a  HDMI monitor.

In step 1 there are 2 Framebuffer device under /dev folder(fb0 and fb1) but in step 2 there is only one.

campier the configuration of above two steps and found that there is no "MXC support drivers setting" on step 2 configuration.

Seems that "MXC support drivers" setting is need in configuration to get display on HDMI monitor in step 2 .

How should i get MXC support drivers setting in step 2 configuration or Get display on HDMI monitor in step 2.

Thanks in advance

[chrisfeyerchak]

I'm having trouble determining where to copy my customized ".config" to in the "Building using Yocto / 2. Configuring the kernel" step above.

I'm building the "fsl-imx-fb" distribution for an i.MX6 UltraLite Evaluation Kit ("imx6ulevk") per the instructions in the "Freescale_Yocto_Project_User's_Guide.pdf" contained within the "Freescale Document Archive - L4.1.15_1.2.0_LINUX_DOCS" ("fsl-yocto-L4.1.15_1.2.0-ga.tar.gz").

repo init -u git://git.freescale.com/imx/fsl-arm-yocto-bsp.git -b imx-4.1.15-1.0.0_ga
DISTRO=fsl-imx-fb MACHINE=imx6ulevk source fsl-setup-release.sh
bitbake core-image-base

Any suggestions? Thanks!

[jackblather]

How can I get access to https://community.nxp.com/docs/DOC-94035?

This is mentioned under "1 - Baking (building) the kernel" and "3 - Setting the environment variables".

I clicked on that and it says, "Access to this place or content is restricted. If you think this is a mistake, please contact your administrator or the person who directed you here."

[Yuri]

Hello,

I have sent You the information via e-mail. 

Regards,

Yuri.

[_sca_]

Hello,

i wave the same problem accessing this file...

Please, can you help me too?

Best regards,

Andreas Schneider

[rogerio_silva]

Sorry the bad link. I just updated the page.

The correct link is: https://community.nxp.com/docs/DOC-94849 

Best regards,

Rogerio

[dilshad_alam]

Do you have any defconfig which is not related to Board which is just specific to IMX6 families. Like if i refer  imx_v7_defconfig it has extra defconfigs like Sound driver, MMC, MTD which is not used for my board. So i need a defconfig which is based on 4.1.15 Kernel and purely has necessary configs related to IMX6 and Interfaces like IPU,I2C,Thermal,SPI, etc

[rogerio_silva]

No. My suggestion is to use the imx_v7_defconfig and remove all items that are not necessary to your project.

Best regards,

Rogerio

[rans]

Hello,

Does anyone knows the difference between /work/../git and /work-shared/ folder ? 

Seems that both showing kernel source files, so I don't understand the difference,

Thank you,

Ran