[Buildroot] freescale_imx31_3stack_defconfig fails to build

[Buildroot] freescale_imx31_3stack_defconfig fails to build

[Thomas Petazzoni]

Fabio, Vincent,

The freescale_imx31_3stack_defconfig in Buildroot no longer builds,
because the Linux kernel version used in this defconfig is too old, and
doesn't build with gcc 5.x.

Has one of you access to this platform, and be willing to update this
defconfig?

See
http://free-electrons.com/~thomas/pub/buildroot-defconfigs/freescale_imx31_3stack_defconfig.log.FAIL
for the full build log.

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

[Buildroot] freescale_imx31_3stack_defconfig fails to build

[Fabio Estevam]

Hi Thomas,

On Sat, Nov 5, 2016 at 11:35 AM, Thomas Petazzoni
<thomas.petazzoni@free-electrons.com> wrote:
> Fabio, Vincent,
>
> The freescale_imx31_3stack_defconfig in Buildroot no longer builds,
> because the Linux kernel version used in this defconfig is too old, and
> doesn't build with gcc 5.x.
>
> Has one of you access to this platform, and be willing to update this
> defconfig?

I think we should be able to use the latest mainline on mx31pdk.

I will try to get access to a mx31pdk and will give it a try with
latest mainline.

Thanks

[Buildroot] freescale_imx31_3stack_defconfig fails to build

[Thomas Petazzoni]

Hello,

On Sat, 5 Nov 2016 13:05:43 -0200, Fabio Estevam wrote:

> > Has one of you access to this platform, and be willing to update this
> > defconfig?  
> 
> I think we should be able to use the latest mainline on mx31pdk.
> 
> I will try to get access to a mx31pdk and will give it a try with
> latest mainline.

Great, thanks!

Bonus point for other improvements to the defconfig, such as adding the
build for the bootloader, etc :)

Thanks,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

[Buildroot] freescale_imx31_3stack_defconfig fails to build

[Fabio Estevam]

On Sat, Nov 5, 2016 at 1:26 PM, Thomas Petazzoni
<thomas.petazzoni@free-electrons.com> wrote:

> Great, thanks!
>
> Bonus point for other improvements to the defconfig, such as adding the
> build for the bootloader, etc :)

Yes, I thought about that as well. Mainline U-Boot should also boot
fine on this board, so hopefully I will be able to test it next week.

Thanks

[Buildroot] freescale_imx31_3stack_defconfig fails to build

[Thomas Petazzoni]

Hello,

On Sat, 5 Nov 2016 16:55:34 +0100, Vincent Stehl? wrote:

> > Has one of you access to this platform, and be willing to update this
> > defconfig?  
> 
> Hi Thomas and Fabio,
> 
> I am sorry to say that I don't have access to an i.MX31 PDK anymore. The
> one I used by the time was already a "rare" resource in Freescale France :)
> 
> I will try to help repair the build at least.

If this platform is difficult to get access to, and rarely used, then
maybe we should just remove the defconfig in Buildroot? It doesn't make
a lot of sense to have defconfig for platforms that are not in use.

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

[Buildroot] freescale_imx31_3stack_defconfig fails to build

[Fabio Estevam]

On Sat, Nov 5, 2016 at 2:16 PM, Thomas Petazzoni
<thomas.petazzoni@free-electrons.com> wrote:
> Hello,
>
> On Sat, 5 Nov 2016 16:55:34 +0100, Vincent Stehl? wrote:
>
>> > Has one of you access to this platform, and be willing to update this
>> > defconfig?
>>
>> Hi Thomas and Fabio,
>>
>> I am sorry to say that I don't have access to an i.MX31 PDK anymore. The
>> one I used by the time was already a "rare" resource in Freescale France :)
>>
>> I will try to help repair the build at least.
>
> If this platform is difficult to get access to, and rarely used, then
> maybe we should just remove the defconfig in Buildroot? It doesn't make
> a lot of sense to have defconfig for platforms that are not in use.

Yes, even for me it will be difficult to get access to a mx31pdk
board, so I am OK with removing its defconfig from Buildroot.

Regards,

Fabio Estevam

[Buildroot] [PATCH] configs: freescale_imx31_3stack: bump kernel version to 4.1.15_2.0.0_ga

[Vincent Stehle]

From: Vincent Stehl? <vincent.stehle@laposte.net>

Switch to the kernel of release 4.1.15_2.0.0_ga, as it builds properly with
gcc 5.x, which is now the default.

We add a linux config fragment to disable the framebuffer, to repair the
build for imx_v6_v7_defconfig.

Suggested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Vincent Stehl? <vincent.stehle@laposte.net>
Signed-off-by: Julien Olivain <juju@cotds.org>
Tested-by: Julien Olivain <juju@cotds.org>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
---


Hello Thomas and Fabio,

My friend Julien got the i.MX31 PDK and he could kindly test a few
buildroot configs!

His experiments show that mainline kernel will not boot "as is" on the PDK.
What he proposed instead is that we switch to a recent NXP/Freescale
release based on kernel 4.1, which does boot on the PDK.

Is that proposal fine with you, please?

Best regards,

Vincent.


 board/freescale/imx31_3stack/linux.fragment |  1 +
 configs/freescale_imx31_3stack_defconfig    | 12 ++++++------
 2 files changed, 7 insertions(+), 6 deletions(-)
 create mode 100644 board/freescale/imx31_3stack/linux.fragment

diff --git a/board/freescale/imx31_3stack/linux.fragment b/board/freescale/imx31_3stack/linux.fragment
new file mode 100644
index 0000000..8d89e8e
--- /dev/null
+++ b/board/freescale/imx31_3stack/linux.fragment
@@ -0,0 +1 @@
+CONFIG_FB_MXS=n
diff --git a/configs/freescale_imx31_3stack_defconfig b/configs/freescale_imx31_3stack_defconfig
index bf1afad..0476fc1 100644
--- a/configs/freescale_imx31_3stack_defconfig
+++ b/configs/freescale_imx31_3stack_defconfig
@@ -3,18 +3,18 @@ BR2_arm=y
 BR2_arm1136jf_s=y
 BR2_ARM_EABIHF=y
 
-# Linux headers same as kernel, a 3.15 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_3_15=y
+# Linux headers same as kernel, a 4.1 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_1=y
 
 # system
 BR2_TARGET_GENERIC_GETTY_PORT="ttymxc0"
 
 # kernel
 BR2_LINUX_KERNEL=y
-# Note: sadly the Linux kernel will not boot on the i.MX31 PDK, starting with
-# v3.16 and at least up to v4.0-rc4; this is why we use v3.15.y here.
-BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="3.15.10"
+BR2_LINUX_KERNEL_CUSTOM_GIT=y
+BR2_LINUX_KERNEL_CUSTOM_REPO_URL="git://git.freescale.com/imx/linux-imx.git"
+BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="rel_imx_4.1.15_2.0.0_ga"
 BR2_LINUX_KERNEL_DEFCONFIG="imx_v6_v7"
+BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/freescale/imx31_3stack/linux.fragment"
 BR2_TARGET_ROOTFS_CPIO_GZIP=y
 BR2_TARGET_ROOTFS_INITRAMFS=y
-- 
2.10.2

[Buildroot] [PATCH] configs: freescale_imx31_3stack: bump kernel version to 4.1.15_2.0.0_ga

[Vincent Stehle]

From: Vincent Stehl? <vincent.stehle@laposte.net>

Switch to the kernel of release 4.1.15_2.0.0_ga, as it builds properly with
gcc 5.x, which is now the default.

We add a linux config fragment to disable the framebuffer, to repair the
build for imx_v6_v7_defconfig.

Suggested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Vincent Stehl? <vincent.stehle@laposte.net>
Signed-off-by: Julien Olivain <juju@cotds.org>
Tested-by: Julien Olivain <juju@cotds.org>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
---


Hello Thomas and Fabio,

My friend Julien got the i.MX31 PDK and he could kindly test a few
buildroot configs!

His experiments show that mainline kernel will not boot "as is" on the PDK.
What he proposed instead is that we switch to a recent NXP/Freescale
release based on kernel 4.1, which does boot on the PDK.

Is that proposal fine with you, please?

Best regards,

Vincent.


 board/freescale/imx31_3stack/linux.fragment |  1 +
 configs/freescale_imx31_3stack_defconfig    | 12 ++++++------
 2 files changed, 7 insertions(+), 6 deletions(-)
 create mode 100644 board/freescale/imx31_3stack/linux.fragment

diff --git a/board/freescale/imx31_3stack/linux.fragment b/board/freescale/imx31_3stack/linux.fragment
new file mode 100644
index 0000000..8d89e8e
--- /dev/null
+++ b/board/freescale/imx31_3stack/linux.fragment
@@ -0,0 +1 @@
+CONFIG_FB_MXS=n
diff --git a/configs/freescale_imx31_3stack_defconfig b/configs/freescale_imx31_3stack_defconfig
index bf1afad..0476fc1 100644
--- a/configs/freescale_imx31_3stack_defconfig
+++ b/configs/freescale_imx31_3stack_defconfig
@@ -3,18 +3,18 @@ BR2_arm=y
 BR2_arm1136jf_s=y
 BR2_ARM_EABIHF=y
 
-# Linux headers same as kernel, a 3.15 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_3_15=y
+# Linux headers same as kernel, a 4.1 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_1=y
 
 # system
 BR2_TARGET_GENERIC_GETTY_PORT="ttymxc0"
 
 # kernel
 BR2_LINUX_KERNEL=y
-# Note: sadly the Linux kernel will not boot on the i.MX31 PDK, starting with
-# v3.16 and at least up to v4.0-rc4; this is why we use v3.15.y here.
-BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="3.15.10"
+BR2_LINUX_KERNEL_CUSTOM_GIT=y
+BR2_LINUX_KERNEL_CUSTOM_REPO_URL="git://git.freescale.com/imx/linux-imx.git"
+BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="rel_imx_4.1.15_2.0.0_ga"
 BR2_LINUX_KERNEL_DEFCONFIG="imx_v6_v7"
+BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/freescale/imx31_3stack/linux.fragment"
 BR2_TARGET_ROOTFS_CPIO_GZIP=y
 BR2_TARGET_ROOTFS_INITRAMFS=y
-- 
2.10.2

[Buildroot] [PATCH] configs: freescale_imx31_3stack: bump kernel version to 4.1.15_2.0.0_ga

[Thomas Petazzoni]

Hello,

On Wed,  9 Nov 2016 17:38:23 +0100, Vincent Stehle wrote:
> From: Vincent Stehl? <vincent.stehle@laposte.net>
> 
> Switch to the kernel of release 4.1.15_2.0.0_ga, as it builds properly with
> gcc 5.x, which is now the default.
> 
> We add a linux config fragment to disable the framebuffer, to repair the
> build for imx_v6_v7_defconfig.
> 
> Suggested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
> Signed-off-by: Vincent Stehl? <vincent.stehle@laposte.net>
> Signed-off-by: Julien Olivain <juju@cotds.org>
> Tested-by: Julien Olivain <juju@cotds.org>
> Cc: Fabio Estevam <fabio.estevam@nxp.com>

Thanks a lot! I've applied to master, with one minor change.

> diff --git a/board/freescale/imx31_3stack/linux.fragment b/board/freescale/imx31_3stack/linux.fragment
> new file mode 100644
> index 0000000..8d89e8e
> --- /dev/null
> +++ b/board/freescale/imx31_3stack/linux.fragment
> @@ -0,0 +1 @@
> +CONFIG_FB_MXS=n

It is more conventional to write this as:

# CONFIG_FB_MXS is not set

which is what kconfig generates in a defconfig for an option that is
disabled.

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com