[Buildroot] [PATCH v2 1/2] imx/post-image: Allow flashing u-boot-dtb.imx in the SD card

[Buildroot] [PATCH v2 1/2] imx/post-image: Allow flashing u-boot-dtb.imx in the SD card

[Fabio Estevam]

Add support for flashing the u-boot-dtb.imx binary in the SD card
when a target selects BR2_TARGET_UBOOT_FORMAT_DTB_IMX.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
Changes since v1:
- Use a UBOOTBIN variable to decide the U-Boot binary name instead
of creating a new genimage.cfg variant. (Thanks to Arnout!)

 board/freescale/common/imx/genimage.cfg.template |  2 +-
 board/freescale/common/imx/post-image.sh         | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/board/freescale/common/imx/genimage.cfg.template b/board/freescale/common/imx/genimage.cfg.template
index acce058..2a7036a 100644
--- a/board/freescale/common/imx/genimage.cfg.template
+++ b/board/freescale/common/imx/genimage.cfg.template
@@ -22,7 +22,7 @@ image sdcard.img {
 
   partition u-boot {
     in-partition-table = "no"
-    image = "u-boot.imx"
+    image = "%UBOOTBIN%"
     offset = 1024
   }
 
diff --git a/board/freescale/common/imx/post-image.sh b/board/freescale/common/imx/post-image.sh
index 264c8a4..6590bed 100755
--- a/board/freescale/common/imx/post-image.sh
+++ b/board/freescale/common/imx/post-image.sh
@@ -41,13 +41,24 @@ genimage_type()
 	fi
 }
 
+uboot_image()
+{
+	if grep -Eq "^BR2_TARGET_UBOOT_FORMAT_DTB_IMX=y$" ${BR2_CONFIG}; then
+		echo "u-boot-dtb.imx"
+	elif grep -Eq "^BR2_TARGET_UBOOT_FORMAT_IMX=y$" ${BR2_CONFIG}; then
+		echo "u-boot.imx"
+	fi
+}
+
 main()
 {
 	local FILES="$(dtb_list) $(linux_image)"
+	local UBOOTBIN="$(uboot_image)"
 	local GENIMAGE_CFG="$(mktemp --suffix genimage.cfg)"
 	local GENIMAGE_TMP="${BUILD_DIR}/genimage.tmp"
 
 	sed -e "s/%FILES%/${FILES}/" \
+		-e "s/%UBOOTBIN%/${UBOOTBIN}/" \
 		board/freescale/common/imx/$(genimage_type) > ${GENIMAGE_CFG}
 
 	rm -rf "${GENIMAGE_TMP}"
-- 
2.7.4

[Buildroot] [PATCH v2 2/2] configs/imx7d-sdb: Add new defconfig

[Fabio Estevam]

Introduce imx7d-sdb_defconfig that allows booting imx7d-sdb
board using U-Boot and kernel mainline instead of the
vendor provided versions.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
Changes since v1:
- None

 configs/imx7d-sdb_defconfig | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 configs/imx7d-sdb_defconfig

diff --git a/configs/imx7d-sdb_defconfig b/configs/imx7d-sdb_defconfig
new file mode 100644
index 0000000..b1cc5f8
--- /dev/null
+++ b/configs/imx7d-sdb_defconfig
@@ -0,0 +1,36 @@
+# architecture
+BR2_arm=y
+BR2_cortex_a7=y
+BR2_ARM_FPU_NEON_VFPV4=y
+
+# Linux headers same as kernel, a 4.17 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_17=y
+
+# system
+BR2_TARGET_GENERIC_GETTY_PORT="ttymxc0"
+
+# Kernel
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.17.4"
+BR2_LINUX_KERNEL_DEFCONFIG="imx_v6_v7"
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="imx7d-sdb"
+BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
+
+# U-Boot
+BR2_TARGET_UBOOT=y
+BR2_TARGET_UBOOT_BOARDNAME="mx7dsabresd"
+BR2_TARGET_UBOOT_CUSTOM_VERSION=y
+BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2018.01"
+BR2_TARGET_UBOOT_FORMAT_DTB_IMX=y
+
+# Filesystem
+BR2_ROOTFS_POST_IMAGE_SCRIPT="board/freescale/common/imx/post-image.sh"
+BR2_TARGET_ROOTFS_EXT2=y
+BR2_TARGET_ROOTFS_EXT2_4=y
+
+# required tools to create the eMMC image
+BR2_PACKAGE_HOST_DOSFSTOOLS=y
+BR2_PACKAGE_HOST_GENIMAGE=y
+BR2_PACKAGE_HOST_MTOOLS=y
-- 
2.7.4

[Buildroot] [PATCH v2 2/2] configs/imx7d-sdb: Add new defconfig

[Thomas Petazzoni]

Hello,

On Sun,  8 Jul 2018 18:16:19 -0300, Fabio Estevam wrote:
> Introduce imx7d-sdb_defconfig that allows booting imx7d-sdb
> board using U-Boot and kernel mainline instead of the
> vendor provided versions.
> 
> Signed-off-by: Fabio Estevam <festevam@gmail.com>
> ---
> Changes since v1:
> - None

This was lacking the update to the DEVELOPERS file and to
the .gitlab-ci.yml file, so I fixed that and applied. Thanks!

However, I find the naming a bit strange. If I understand correctly
freescale_imx7dsabresd_defconfig and imx7d-sdb_defconfig are for the
same board, the former using the vendor kernel, the latter using the
mainline kernel. If that's the case, why isn't the defconfig having the
same name, except for the freescale_ prefix ?

Also, the board folder is named "imx7dsdb", which isn't very consistent.

Could you clarify this and perhaps increase the consistency ?

Thanks a lot!

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

[Buildroot] [PATCH v2 2/2] configs/imx7d-sdb: Add new defconfig

[Fabio Estevam]

Hi Thomas,

On Wed, Jul 18, 2018 at 7:01 AM, Thomas Petazzoni
<thomas.petazzoni@bootlin.com> wrote:

> This was lacking the update to the DEVELOPERS file and to
> the .gitlab-ci.yml file, so I fixed that and applied. Thanks!

Ops, thanks for fixing these points!

> However, I find the naming a bit strange. If I understand correctly
> freescale_imx7dsabresd_defconfig and imx7d-sdb_defconfig are for the
> same board, the former using the vendor kernel, the latter using the
> mainline kernel. If that's the case, why isn't the defconfig having the
> same name, except for the freescale_ prefix ?

For boards that use mainline kernel and U-Boot I try to name its
Buildroot defconfig using the same convention used in its device tree:
<soc>-<board>, so that is why I used imx7d-sdb_defconfig.

> Also, the board folder is named "imx7dsdb", which isn't very consistent.

Yes, I can change it to "imx7d-sdb" for better consistency.

Thanks

[Buildroot] [PATCH v2 2/2] configs/imx7d-sdb: Add new defconfig

[Thomas Petazzoni]

Hello,

On Wed, 18 Jul 2018 09:21:39 -0300, Fabio Estevam wrote:

> > However, I find the naming a bit strange. If I understand correctly
> > freescale_imx7dsabresd_defconfig and imx7d-sdb_defconfig are for the
> > same board, the former using the vendor kernel, the latter using the
> > mainline kernel. If that's the case, why isn't the defconfig having the
> > same name, except for the freescale_ prefix ?  
> 
> For boards that use mainline kernel and U-Boot I try to name its
> Buildroot defconfig using the same convention used in its device tree:
> <soc>-<board>, so that is why I used imx7d-sdb_defconfig.

That makes sense. So I guess the DT name in the vendor kernel is
different, and that's why our defconfigs have a different name between
the vendor and mainline variants for a given board ?

> > Also, the board folder is named "imx7dsdb", which isn't very consistent.  
> 
> Yes, I can change it to "imx7d-sdb" for better consistency.

Yeah, that's just a minor detail :-) However, it still wouldn't be very
consistent with the name of the defconfig for the vendor u-boot/kernel
variant.

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

[Buildroot] [PATCH v2 2/2] configs/imx7d-sdb: Add new defconfig

[Fabio Estevam]

Hi Thomas,

On Wed, Jul 18, 2018 at 9:51 AM, Thomas Petazzoni
<thomas.petazzoni@bootlin.com> wrote:

> That makes sense. So I guess the DT name in the vendor kernel is
> different, and that's why our defconfigs have a different name between
> the vendor and mainline variants for a given board ?

Actually the dts name in the vendor kernel is the same.

We could just add a "freescale" prefix to make clear that it refers to
a defconfig that uses the vendor U-Boot and kernel.

For example:

imx7d-sdb_defconfig: this Buildroot defconfig uses mainline U-Boot/kernel
freescale_imx7d-sdb_defconfig: this Buildroot defconfig uses the
vendor provided U-Boot/kernel.

If you agree I can try to adopt such naming scheme.

Thanks

[Buildroot] [PATCH v2 2/2] configs/imx7d-sdb: Add new defconfig

[Thomas Petazzoni]

Hello,

On Wed, 18 Jul 2018 10:03:20 -0300, Fabio Estevam wrote:

> Actually the dts name in the vendor kernel is the same.
> 
> We could just add a "freescale" prefix to make clear that it refers to
> a defconfig that uses the vendor U-Boot and kernel.
> 
> For example:
> 
> imx7d-sdb_defconfig: this Buildroot defconfig uses mainline U-Boot/kernel
> freescale_imx7d-sdb_defconfig: this Buildroot defconfig uses the
> vendor provided U-Boot/kernel.

To me, this is what would make the most sense.

So, is configs/freescale_imx7dsabresd_defconfig related to this same
board, or is it a completely different board ?

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

[Buildroot] [PATCH v2 2/2] configs/imx7d-sdb: Add new defconfig

[Fabio Estevam]

On Wed, Jul 18, 2018 at 10:12 AM, Thomas Petazzoni
<thomas.petazzoni@bootlin.com> wrote:
> Hello,
>
> On Wed, 18 Jul 2018 10:03:20 -0300, Fabio Estevam wrote:
>
>> Actually the dts name in the vendor kernel is the same.
>>
>> We could just add a "freescale" prefix to make clear that it refers to
>> a defconfig that uses the vendor U-Boot and kernel.
>>
>> For example:
>>
>> imx7d-sdb_defconfig: this Buildroot defconfig uses mainline U-Boot/kernel
>> freescale_imx7d-sdb_defconfig: this Buildroot defconfig uses the
>> vendor provided U-Boot/kernel.
>
> To me, this is what would make the most sense.
>
> So, is configs/freescale_imx7dsabresd_defconfig related to this same
> board, or is it a completely different board ?

It is the same board.

From a Buildroot perspective the only difference between
freescale_imx7dsabresd_defconfig and imx7d-sdb_defconfig is that the
one with "freescale" uses the vendor U-Boot and kernel.

I will try to improve the board names as per the suggestion above.

Thanks

[Buildroot] [PATCH v2 1/2] imx/post-image: Allow flashing u-boot-dtb.imx in the SD card

[Fabio Estevam]

Hi Arnout,

On Sun, Jul 8, 2018 at 6:16 PM, Fabio Estevam <festevam@gmail.com> wrote:
> Add support for flashing the u-boot-dtb.imx binary in the SD card
> when a target selects BR2_TARGET_UBOOT_FORMAT_DTB_IMX.
>
> Signed-off-by: Fabio Estevam <festevam@gmail.com>
> ---
> Changes since v1:
> - Use a UBOOTBIN variable to decide the U-Boot binary name instead
> of creating a new genimage.cfg variant. (Thanks to Arnout!)

Are you happy with this version?

Thanks

[Buildroot] [PATCH v2 1/2] imx/post-image: Allow flashing u-boot-dtb.imx in the SD card

[Thomas Petazzoni]

Hello,

On Sun,  8 Jul 2018 18:16:18 -0300, Fabio Estevam wrote:
> Add support for flashing the u-boot-dtb.imx binary in the SD card
> when a target selects BR2_TARGET_UBOOT_FORMAT_DTB_IMX.
> 
> Signed-off-by: Fabio Estevam <festevam@gmail.com>
> ---
> Changes since v1:
> - Use a UBOOTBIN variable to decide the U-Boot binary name instead
> of creating a new genimage.cfg variant. (Thanks to Arnout!)

Applied to master, thanks.

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com