diff mbox

[1/1] configs/udoo_quad_defconfig: new defconfig

Message ID 1421533112-5265-1-git-send-email-ivo.slanina@gmail.com
State Superseded
Headers show

Commit Message

Ivo Slanina Jan. 17, 2015, 10:18 p.m. UTC 
Added defconfig for UDOO Quad board. Used official kernel 3.0.35.
Kernel is patched in order to use gcc version 4.8 and above,
according to mailing list at
https://lists.yoctoproject.org/pipermail/meta-freescale/2013-July/003531.html

Bootloader is also downloaded from official repository.

Signed-off-by: Ivo Slanina <ivo.slanina@gmail.com>
---
 configs/udoo_quad_defconfig |   25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 configs/udoo_quad_defconfig

Comments

Baruch Siach Jan. 17, 2015, 10:32 p.m. UTC | #1 
Hi Ivo,

On Sat, Jan 17, 2015 at 11:18:32PM +0100, Ivo Slanina wrote:
> Added defconfig for UDOO Quad board. Used official kernel 3.0.35.
> Kernel is patched in order to use gcc version 4.8 and above,
> according to mailing list at
> https://lists.yoctoproject.org/pipermail/meta-freescale/2013-July/003531.html

Why can't you use mainline kernel for this board?

baruch
Ivo Slanina Jan. 18, 2015, 12:36 p.m. UTC | #2 
Hi baruch,

On 01/17/2015 11:32 PM, Baruch Siach wrote:
> Hi Ivo,
>
> On Sat, Jan 17, 2015 at 11:18:32PM +0100, Ivo Slanina wrote:
>> Added defconfig for UDOO Quad board. Used official kernel 3.0.35.
>> Kernel is patched in order to use gcc version 4.8 and above,
>> according to mailing list at
>> https://lists.yoctoproject.org/pipermail/meta-freescale/2013-July/003531.html
>
> Why can't you use mainline kernel for this board?
>
> baruch
>

I tried to used mainline kernel, but board doesn't boot up. I get only
following output:

U-Boot 2013.10-rc3 (Jan 18 2015 - 12:03:56)

CPU:   Freescale i.MX6Q rev1.2 at 792 MHz
Reset cause: POR
Board: UDOO
DRAM:  1 GiB
MMC:   FSL_SDHC: 0
*** Warning - bad CRC, using default environment

No panel detected: default to LDB-WVGA
Display: LDB-WVGA (800x480)
In:    serial
Out:   serial
Err:   serial
Net:   using phy at 6
FEC [PRIME]
Hit any key to stop autoboot:  0
mmc0 is current device
** File not found boot.scr **
5489632 bytes read in 391 ms (13.4 MiB/s)
Booting from mmc ...
** File not found imx6q-udoo.dtb **
## Booting kernel from Legacy Image at 12000000 ...
    Image Name:   Linux-3.18.3
    Image Type:   ARM Linux Kernel Image (uncompressed)
    Data Size:    5489568 Bytes = 5.2 MiB
    Load Address: 10008000
    Entry Point:  10008000
    Verifying Checksum ... OK
    Loading Kernel Image ... OK

Starting kernel ...

After this, board stuck. I also encountered this issue with another
i.MX6 based board but I didn't fix that yet. Kernel from UDOO
repository works fine.

I'm new in embedded Linux development. I still have a lot to learn,
so I would be grateful if someone points me to how to use mainline kernel.

Regards,
Ivo Slanina
Baruch Siach Jan. 18, 2015, 1:10 p.m. UTC | #3 
Hi Ivo,

On Sun, Jan 18, 2015 at 01:36:27PM +0100, Ivo Slanina wrote:
> On 01/17/2015 11:32 PM, Baruch Siach wrote:
> >Why can't you use mainline kernel for this board?
> 
> I tried to used mainline kernel, but board doesn't boot up. I get only
> following output:
> 
> U-Boot 2013.10-rc3 (Jan 18 2015 - 12:03:56)
> 
> CPU:   Freescale i.MX6Q rev1.2 at 792 MHz
> Reset cause: POR
> Board: UDOO
> DRAM:  1 GiB
> MMC:   FSL_SDHC: 0
> *** Warning - bad CRC, using default environment
> 
> No panel detected: default to LDB-WVGA
> Display: LDB-WVGA (800x480)
> In:    serial
> Out:   serial
> Err:   serial
> Net:   using phy at 6
> FEC [PRIME]
> Hit any key to stop autoboot:  0
> mmc0 is current device
> ** File not found boot.scr **
> 5489632 bytes read in 391 ms (13.4 MiB/s)
> Booting from mmc ...
> ** File not found imx6q-udoo.dtb **

Here is a clue. You can generate imx6q-udoo.dtb from the Linux sources by 
enabling CONFIG_ARCH_MXC, and running

	make dtbs

Then copy arch/arm/boot/dts/imx6q-udoo.dtb to your MMC partition.

> ## Booting kernel from Legacy Image at 12000000 ...
>    Image Name:   Linux-3.18.3
>    Image Type:   ARM Linux Kernel Image (uncompressed)
>    Data Size:    5489568 Bytes = 5.2 MiB
>    Load Address: 10008000
>    Entry Point:  10008000
>    Verifying Checksum ... OK
>    Loading Kernel Image ... OK
> 
> Starting kernel ...
> 
> After this, board stuck. I also encountered this issue with another
> i.MX6 based board but I didn't fix that yet. Kernel from UDOO
> repository works fine.
> 
> I'm new in embedded Linux development. I still have a lot to learn,
> so I would be grateful if someone points me to how to use mainline kernel.

Hope this helps.

baruch
Thomas Petazzoni Jan. 18, 2015, 4:38 p.m. UTC | #4 
Dear Baruch Siach,

On Sun, 18 Jan 2015 00:32:46 +0200, Baruch Siach wrote:
> Hi Ivo,
> 
> On Sat, Jan 17, 2015 at 11:18:32PM +0100, Ivo Slanina wrote:
> > Added defconfig for UDOO Quad board. Used official kernel 3.0.35.
> > Kernel is patched in order to use gcc version 4.8 and above,
> > according to mailing list at
> > https://lists.yoctoproject.org/pipermail/meta-freescale/2013-July/003531.html
> 
> Why can't you use mainline kernel for this board?

Well, on i.MX6, as far as know, you can't get OpenGL support with a
mainline kernel. So even though I definitely support and encourage
people to use mainline kernels, I believe for Buildroot defconfigs, it
sometimes makes sense to use the vendor kernel when it is absolutely
necessary to enable certain important features, like 3D acceleration.

Best regards,

Thomas
Ivo Slanina Jan. 20, 2015, 8:03 a.m. UTC | #5 
Hello Baruch,

On 01/18/2015 02:10 PM, Baruch Siach wrote:
> On Sun, Jan 18, 2015 at 01:36:27PM +0100, Ivo Slanina wrote:
>> On 01/17/2015 11:32 PM, Baruch Siach wrote:
>>> Why can't you use mainline kernel for this board?
>>
>> I tried to used mainline kernel, but board doesn't boot up. I get only
>> following output:
>>
>> U-Boot 2013.10-rc3 (Jan 18 2015 - 12:03:56)
>>
>> CPU:   Freescale i.MX6Q rev1.2 at 792 MHz
>> Reset cause: POR
>> Board: UDOO
>> DRAM:  1 GiB
>> MMC:   FSL_SDHC: 0
>> *** Warning - bad CRC, using default environment
>>
>> No panel detected: default to LDB-WVGA
>> Display: LDB-WVGA (800x480)
>> In:    serial
>> Out:   serial
>> Err:   serial
>> Net:   using phy at 6
>> FEC [PRIME]
>> Hit any key to stop autoboot:  0
>> mmc0 is current device
>> ** File not found boot.scr **
>> 5489632 bytes read in 391 ms (13.4 MiB/s)
>> Booting from mmc ...
>> ** File not found imx6q-udoo.dtb **
> 
> Here is a clue. You can generate imx6q-udoo.dtb from the Linux sources by 
> enabling CONFIG_ARCH_MXC, and running
> 
> 	make dtbs
> 
> Then copy arch/arm/boot/dts/imx6q-udoo.dtb to your MMC partition.
> 
>> ## Booting kernel from Legacy Image at 12000000 ...
>>    Image Name:   Linux-3.18.3
>>    Image Type:   ARM Linux Kernel Image (uncompressed)
>>    Data Size:    5489568 Bytes = 5.2 MiB
>>    Load Address: 10008000
>>    Entry Point:  10008000
>>    Verifying Checksum ... OK
>>    Loading Kernel Image ... OK
>>
>> Starting kernel ...
>>
>> After this, board stuck. I also encountered this issue with another
>> i.MX6 based board but I didn't fix that yet. Kernel from UDOO
>> repository works fine.
>>
>> I'm new in embedded Linux development. I still have a lot to learn,
>> so I would be grateful if someone points me to how to use mainline kernel.
> 
> Hope this helps.
> 
> baruch
> 

Thanks for help, I didn't notice device tree source file for UDOO in Linux sources.
But after copying .dtb file into SD card, board still doesn't boot up.

Here is output, what I get:

U-Boot 2013.10-rc3 (Jan 18 2015 - 17:53:27)

CPU:   Freescale i.MX6Q rev1.2 at 792 MHz
Reset cause: POR
Board: UDOO
DRAM:  1 GiB
MMC:   FSL_SDHC: 0
*** Warning - bad CRC, using default environment

No panel detected: default to LDB-WVGA
Display: LDB-WVGA (800x480)
In:    serial
Out:   serial
Err:   serial
Net:   using phy at 6
FEC [PRIME]
Hit any key to stop autoboot:  0 
mmc0 is current device
** File not found boot.scr **
5489632 bytes read in 361 ms (14.5 MiB/s)
Booting from mmc ...
27547 bytes read in 129 ms (208 KiB/s)
## Booting kernel from Legacy Image at 12000000 ...
   Image Name:   Linux-3.18.3
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    5489568 Bytes = 5.2 MiB
   Load Address: 10008000
   Entry Point:  10008000
   Verifying Checksum ... OK
## Flattened Device Tree blob at 11000000
   Booting using the fdt blob at 0x11000000
   Loading Kernel Image ... OK
   Using Device Tree in place at 11000000, end 11009b9a

Starting kernel ... 

It seems to be some trivial problem to me, but I can't fix this by myself.
I not really understand uImage load address. I know that at 0x1000000 address
starts MMC zone, but I'm not sure what is 0x8000 offset from that address.
I took the value from freescale_imx6qsabresd_defconfig.

Please, can you give me some other clue?

Thanks,
Ivo Slanina
Baruch Siach Jan. 20, 2015, 8:42 p.m. UTC | #6 
Hi Ivo,

On Tue, Jan 20, 2015 at 09:03:16AM +0100, Ivo Slanina wrote:
> Thanks for help, I didn't notice device tree source file for UDOO in Linux 
> sources.
> But after copying .dtb file into SD card, board still doesn't boot up.
> 
> Here is output, what I get:
> 
> U-Boot 2013.10-rc3 (Jan 18 2015 - 17:53:27)
> 
> CPU:   Freescale i.MX6Q rev1.2 at 792 MHz
> Reset cause: POR
> Board: UDOO
> DRAM:  1 GiB
> MMC:   FSL_SDHC: 0
> *** Warning - bad CRC, using default environment
> 
> No panel detected: default to LDB-WVGA
> Display: LDB-WVGA (800x480)
> In:    serial
> Out:   serial
> Err:   serial
> Net:   using phy at 6
> FEC [PRIME]
> Hit any key to stop autoboot:  0 
> mmc0 is current device
> ** File not found boot.scr **
> 5489632 bytes read in 361 ms (14.5 MiB/s)
> Booting from mmc ...
> 27547 bytes read in 129 ms (208 KiB/s)
> ## Booting kernel from Legacy Image at 12000000 ...
>    Image Name:   Linux-3.18.3
>    Image Type:   ARM Linux Kernel Image (uncompressed)
>    Data Size:    5489568 Bytes = 5.2 MiB
>    Load Address: 10008000
>    Entry Point:  10008000
>    Verifying Checksum ... OK
> ## Flattened Device Tree blob at 11000000
>    Booting using the fdt blob at 0x11000000
>    Loading Kernel Image ... OK
>    Using Device Tree in place at 11000000, end 11009b9a
> 
> Starting kernel ... 
> 
> It seems to be some trivial problem to me, but I can't fix this by myself.
> I not really understand uImage load address. I know that at 0x1000000 address
> starts MMC zone, but I'm not sure what is 0x8000 offset from that address.
> I took the value from freescale_imx6qsabresd_defconfig.
> 
> Please, can you give me some other clue?

This is really quite off topic for this list. I agree with Thomas that if 
mainline kernel does not work for you for whatever reason, then you should 
stick with a kernel that works. Yet I think that the reason for choosing 
something other then mainline kernel should at least appear in the commit log. 
That is the reason I asked you about it.

I will only say that your next debugging step is called "earlyprintk". See the 
links below for some more details.

http://nishanthmenon.blogspot.co.il/2010/09/my-kernel-doesnt-boot-magic-of.html 
http://nothingtechnicalaboutit.blogspot.co.il/2012/02/linux-early-boot-debug.html 

If you have any further questions on kernel bring-up, please direct them to 
the linux-arm-kernel mailing list 
(http://lists.infradead.org/mailman/listinfo/linux-arm-kernel).

baruch
Thomas De Schampheleire Feb. 2, 2015, 5:38 p.m. UTC | #7 
Hi Ivo,

On Sat, Jan 17, 2015 at 11:18 PM, Ivo Slanina <ivo.slanina@gmail.com> wrote:
> Added defconfig for UDOO Quad board. Used official kernel 3.0.35.
> Kernel is patched in order to use gcc version 4.8 and above,
> according to mailing list at
> https://lists.yoctoproject.org/pipermail/meta-freescale/2013-July/003531.html
>
> Bootloader is also downloaded from official repository.
>
> Signed-off-by: Ivo Slanina <ivo.slanina@gmail.com>
> ---
>  configs/udoo_quad_defconfig |   25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
>  create mode 100644 configs/udoo_quad_defconfig

Thanks for your contribution!
I resubmitted your patch with two minor changes: use explicit commit
numbers instead of a branch name like 'master'.

Best regards,
Thomas
diff mbox

Patch

diff --git a/configs/udoo_quad_defconfig b/configs/udoo_quad_defconfig
new file mode 100644
index 0000000..32e9a61
--- /dev/null
+++ b/configs/udoo_quad_defconfig
@@ -0,0 +1,25 @@ 
+BR2_arm=y
+BR2_cortex_a9=y
+BR2_ARM_EABIHF=y
+BR2_ARM_FPU_VFPV3=y
+BR2_KERNEL_HEADERS_VERSION=y
+BR2_DEFAULT_KERNEL_VERSION="3.0.35"
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_3_0=y
+BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
+BR2_TOOLCHAIN_BUILDROOT_CXX=y
+BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_MDEV=y
+BR2_TARGET_GENERIC_GETTY_PORT="ttymxc1"
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_GIT=y
+BR2_LINUX_KERNEL_CUSTOM_REPO_URL="https://github.com/UDOOboard/Kernel_Unico"
+BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="master"
+BR2_LINUX_KERNEL_PATCH="https://github.com/torvalds/linux/commit/455bd4c430b0c0a361f38e8658a0d6cb469942b5.patch https://github.com/torvalds/linux/commit/418df63adac56841ef6b0f1fcf435bc64d4ed177.patch"
+BR2_LINUX_KERNEL_DEFCONFIG="UDOO"
+BR2_LINUX_KERNEL_UIMAGE_LOADADDR="0x10008000"
+BR2_LINUX_KERNEL_INSTALL_TARGET=y
+BR2_TARGET_UBOOT=y
+BR2_TARGET_UBOOT_BOARDNAME="udoo_quad"
+BR2_TARGET_UBOOT_CUSTOM_GIT=y
+BR2_TARGET_UBOOT_CUSTOM_REPO_URL="https://github.com/UDOOboard/U-Boot_Unico-2013"
+BR2_TARGET_UBOOT_CUSTOM_REPO_VERSION="master"
+BR2_TARGET_UBOOT_FORMAT_IMX=y