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configs/kontron_smarc_sal28: new defconfig

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Now that upstream supports this board add buildroot support for it,
too.

This supports:
 - latest upstream linux kernel. Since the support for this board and
   its SoC is still in active development, we want to follow the
   upstream kernel releases for now.
 - building an image which can be installed to eMMC, SD card or USB
   thumb drive.
 - upstream u-boot patches are pending, therefore no support for
   building a bootloader for now.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Heiko Thiery <heiko.thiery@gmail.com>
Tested-by: Heiko Thiery <heiko.thiery@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Michael Walle 2020-06-05 00:11:22 +02:00 committed by Thomas Petazzoni
parent 4acd961625
commit a7a19b1c19
10 changed files with 176 additions and 0 deletions
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2
DEVELOPERS
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@ -1878,6 +1878,8 @@ F: package/jasper/
F: package/libstrophe/
N: Michael Walle <michael@walle.cc>
F: board/kontron/smarc-sal28/
F: configs/kontron_smarc_sal28_defconfig
F: package/libavl/
N: Michał Łyszczek <michal.lyszczek@bofc.pl>

4
board/kontron/smarc-sal28/extlinux.conf Normal file
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@ -0,0 +1,4 @@
label buildroot
kernel /boot/Image
devicetreedir /boot
append root=PARTUUID=%PARTUUID% rootwait

11
board/kontron/smarc-sal28/genimage.cfg Normal file
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@ -0,0 +1,11 @@
image sdcard-emmc.img {
hdimage {
gpt = true
}
partition rootfs {
offset = 2M
image = rootfs.ext4
partition-uuid = %PARTUUID%
}
}

18
board/kontron/smarc-sal28/linux.fragment Normal file
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@ -0,0 +1,18 @@
CONFIG_NET_DSA=m
CONFIG_NET_DSA_TAG_OCELOT=m
CONFIG_NET_DSA_MSCC_FELIX=m
CONFIG_NET_SCHED=y
CONFIG_NET_SCH_CBS=m
CONFIG_NET_SCH_ETF=m
CONFIG_NET_SCH_TAPRIO=m
CONFIG_CAN_FLEXCAN=m
CONFIG_FSL_ENETC=y
CONFIG_FSL_ENETC_VF=m
CONFIG_FSL_ENETC_QOS=y
CONFIG_MSCC_OCELOT_SWITCH=m
CONFIG_PCIE_DW_PLAT_HOST=y
CONFIG_GPIO_MPC8XXX=y
CONFIG_SND_SOC_FSL_SAI=m
CONFIG_SND_SOC_WM8904=m
CONFIG_RTC_DRV_RV8803=y
CONFIG_COMMON_CLK_FSL_SAI=y

7
board/kontron/smarc-sal28/post-build.sh Executable file
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@ -0,0 +1,7 @@
#!/bin/sh
BOARD_DIR="$(dirname $0)"
PARTUUID="$($HOST_DIR/bin/uuidgen)"
install -d "$TARGET_DIR/boot/extlinux/"
sed "s/%PARTUUID%/$PARTUUID/g" "$BOARD_DIR/extlinux.conf" > "$TARGET_DIR/boot/extlinux/extlinux.conf"
sed "s/%PARTUUID%/$PARTUUID/g" "$BOARD_DIR/genimage.cfg" > "$BINARIES_DIR/genimage.cfg"

80
board/kontron/smarc-sal28/readme.txt Normal file
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Kontron SMARC-sAL28
===================
How to build it
===============
Configure Buildroot:
$ make kontron_smarc_sal28_defconfig
Change settings to fit your needs (optional):
$ make menuconfig
Compile everything and build the rootfs image:
$ make
Copying the image to a storage device
=====================================
Buildroot builds an image which can be written to the internal eMMC
storage, a SD card or an USB thumb drive. You can use the following
command on your host:
$ sudo dd if=output/images/sdcard-emmc.img of=/dev/sdx bs=1M
Where /dev/sdx is the corresponding block device of your SD card or USB
thumb drive. To flash it on your internal eMMC use the following command on
the board:
# dd if=sdcard-emmc.img of=/dev/mmcblk1 bs=1M
Be sure you have not booted from the internal eMMC in this case!
Booting the board
=================
By default the bootloader will search for the first valid image, starting
with the internal eMMC. Consult the vendor documentation on how to use the
DIP switches to select specific boot devices. To use the bootloader
environment set the boot_targets correspondingly. E.g.:
# setenv boot_targets usb0
To boot from an USB thumb drive.
The device tree is loaded according to the filename in fdtfile. The
following command will set the default device tree, which works on almost
all variants (with less features of course):
# setenv fdtfile freescale/fsl-ls1028a-kontron-sl28.dtb
Set this to a device tree which fits your board variant.
Connect your serial cable to SER1 and open your favorite terminal emulation
program (baudrate 115200, 8n1). E.g.:
$ picocom -b 115200 /dev/ttyUSB0
You will get a warning reported by fdisk when you examine the SD card.
This is because the genimage.cfg file doesn't specify the SD card size
(as people will naturally have different sized cards), so the
secondary GPT header is placed after the rootfs rather than at the end
of the disk where it is expected to be.
You will see something like this at boot time:
[ 4.552797] GPT:Primary header thinks Alt. header is not at the end of the disk.
[ 4.560237] GPT:266272 != 7864319
[ 4.563565] GPT:Alternate GPT header not at the end of the disk.
[ 4.569596] GPT:266272 != 7864319
[ 4.572925] GPT: Use GNU Parted to correct GPT errors.
What does not work
==================
For reasons unknown, the network card doesn't work if you use the original
vendor bootloader. Board support patches for upstream u-boot are currently
pending. Stay tuned.

8
board/kontron/smarc-sal28/rootfs_overlay/etc/udev/rules.d/70-enetc-networking.rules Normal file
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.0", DRIVERS=="fsl_enetc", NAME="eno0"
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.1", DRIVERS=="fsl_enetc", NAME="eno1"
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.2", DRIVERS=="fsl_enetc", NAME="eno2"
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.6", DRIVERS=="fsl_enetc", NAME="eno3"
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:01.0", DRIVERS=="fsl_enetc_vf", NAME="eno0vf0"
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:01.1", DRIVERS=="fsl_enetc_vf", NAME="eno0vf1"
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:01.2", DRIVERS=="fsl_enetc_vf", NAME="eno1vf0"
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:01.3", DRIVERS=="fsl_enetc_vf", NAME="eno1vf1"

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board/kontron/smarc-sal28/rootfs_overlay/etc/udev/rules.d/70-felix-networking.rules Normal file
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@ -0,0 +1,6 @@
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.5", DRIVERS=="mscc_felix", ATTR{phys_port_name}=="p0", NAME="swp0"
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.5", DRIVERS=="mscc_felix", ATTR{phys_port_name}=="p1", NAME="swp1"
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.5", DRIVERS=="mscc_felix", ATTR{phys_port_name}=="p2", NAME="swp2"
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.5", DRIVERS=="mscc_felix", ATTR{phys_port_name}=="p3", NAME="swp3"
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.5", DRIVERS=="mscc_felix", ATTR{phys_port_name}=="p4", NAME="swp4"
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.5", DRIVERS=="mscc_felix", ATTR{phys_port_name}=="p5", NAME="swp5"

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board/kontron/smarc-sal28/rootfs_overlay/etc/udev/rules.d/71-smarc-networking.rules Normal file
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# Map the GBE0 and GBE1 names from the SMARC standard to the network
# interfaces. This depends on the variant of the board.
# get the variant compatible string
PROGRAM=="/bin/grep '^kontron,sl28-var[1-4]$' /sys/firmware/devicetree/base/compatible", ENV{sl28_compatible}="%c"
# variant 1
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.1", DRIVERS=="fsl_enetc", ENV{sl28_compatible}=="kontron,sl28-var1", NAME="gbe0"
# variant 2
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.5", DRIVERS=="mscc_felix", ATTR{phys_port_name}=="p0", ENV{sl28_compatible}=="kontron,sl28-var2", NAME="gbe0"
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.5", DRIVERS=="mscc_felix", ATTR{phys_port_name}=="p1", ENV{sl28_compatible}=="kontron,sl28-var2", NAME="gbe1"
# variant 3
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.0", DRIVERS=="fsl_enetc", ENV{sl28_compatible}=="kontron,sl28-var3", NAME="gbe0"
# variant 4
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.0", DRIVERS=="fsl_enetc", ENV{sl28_compatible}=="kontron,sl28-var4", NAME="gbe0"
ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.1", DRIVERS=="fsl_enetc", ENV{sl28_compatible}=="kontron,sl28-var4", NAME="gbe1"

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configs/kontron_smarc_sal28_defconfig Normal file
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BR2_aarch64=y
BR2_cortex_a72=y
BR2_TOOLCHAIN_BUILDROOT_WCHAR=y
BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV=y
BR2_ROOTFS_OVERLAY="board/kontron/smarc-sal28/rootfs_overlay"
BR2_ROOTFS_POST_BUILD_SCRIPT="board/kontron/smarc-sal28/post-build.sh"
BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
BR2_ROOTFS_POST_SCRIPT_ARGS="-c $(BINARIES_DIR)/genimage.cfg"
BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG=y
BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/kontron/smarc-sal28/linux.fragment"
BR2_LINUX_KERNEL_DTS_SUPPORT=y
BR2_LINUX_KERNEL_INTREE_DTS_NAME="freescale/fsl-ls1028a-kontron-sl28 freescale/fsl-ls1028a-kontron-sl28-var2 freescale/fsl-ls1028a-kontron-sl28-var3-ads2 freescale/fsl-ls1028a-kontron-sl28-var4 freescale/fsl-ls1028a-kontron-kbox-a-230-ls"
BR2_LINUX_KERNEL_DTB_KEEP_DIRNAME=y
BR2_LINUX_KERNEL_INSTALL_TARGET=y
BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
BR2_TARGET_ROOTFS_EXT2=y
BR2_TARGET_ROOTFS_EXT2_4=y
BR2_TARGET_ROOTFS_EXT2_SIZE="128M"
BR2_PACKAGE_HOST_GENIMAGE=y
BR2_PACKAGE_HOST_UBOOT_TOOLS=y