configs/kontron_smarc_sal28: new defconfig
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>2020.11.x
Michael Walle
Thomas Petazzoni
parent
4acd961625
commit
a7a19b1c19
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@ -1878,6 +1878,8 @@ F: package/jasper/
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F: package/libstrophe/
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N: Michael Walle <michael@walle.cc>
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F: board/kontron/smarc-sal28/
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F: configs/kontron_smarc_sal28_defconfig
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F: package/libavl/
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N: Michał Łyszczek <michal.lyszczek@bofc.pl>
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@ -0,0 +1,4 @@
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label buildroot
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kernel /boot/Image
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devicetreedir /boot
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append root=PARTUUID=%PARTUUID% rootwait
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@ -0,0 +1,11 @@
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image sdcard-emmc.img {
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hdimage {
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gpt = true
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}
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partition rootfs {
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offset = 2M
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image = rootfs.ext4
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partition-uuid = %PARTUUID%
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}
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}
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@ -0,0 +1,18 @@
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CONFIG_NET_DSA=m
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CONFIG_NET_DSA_TAG_OCELOT=m
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CONFIG_NET_DSA_MSCC_FELIX=m
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CONFIG_NET_SCHED=y
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CONFIG_NET_SCH_CBS=m
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CONFIG_NET_SCH_ETF=m
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CONFIG_NET_SCH_TAPRIO=m
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CONFIG_CAN_FLEXCAN=m
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CONFIG_FSL_ENETC=y
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CONFIG_FSL_ENETC_VF=m
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CONFIG_FSL_ENETC_QOS=y
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CONFIG_MSCC_OCELOT_SWITCH=m
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CONFIG_PCIE_DW_PLAT_HOST=y
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CONFIG_GPIO_MPC8XXX=y
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CONFIG_SND_SOC_FSL_SAI=m
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CONFIG_SND_SOC_WM8904=m
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CONFIG_RTC_DRV_RV8803=y
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CONFIG_COMMON_CLK_FSL_SAI=y
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@ -0,0 +1,7 @@
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#!/bin/sh
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BOARD_DIR="$(dirname $0)"
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PARTUUID="$($HOST_DIR/bin/uuidgen)"
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install -d "$TARGET_DIR/boot/extlinux/"
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sed "s/%PARTUUID%/$PARTUUID/g" "$BOARD_DIR/extlinux.conf" > "$TARGET_DIR/boot/extlinux/extlinux.conf"
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sed "s/%PARTUUID%/$PARTUUID/g" "$BOARD_DIR/genimage.cfg" > "$BINARIES_DIR/genimage.cfg"
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@ -0,0 +1,80 @@
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Kontron SMARC-sAL28
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===================
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How to build it
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===============
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Configure Buildroot:
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$ make kontron_smarc_sal28_defconfig
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Change settings to fit your needs (optional):
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$ make menuconfig
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Compile everything and build the rootfs image:
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$ make
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Copying the image to a storage device
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=====================================
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Buildroot builds an image which can be written to the internal eMMC
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storage, a SD card or an USB thumb drive. You can use the following
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command on your host:
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$ sudo dd if=output/images/sdcard-emmc.img of=/dev/sdx bs=1M
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Where /dev/sdx is the corresponding block device of your SD card or USB
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thumb drive. To flash it on your internal eMMC use the following command on
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the board:
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# dd if=sdcard-emmc.img of=/dev/mmcblk1 bs=1M
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Be sure you have not booted from the internal eMMC in this case!
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Booting the board
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=================
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By default the bootloader will search for the first valid image, starting
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with the internal eMMC. Consult the vendor documentation on how to use the
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DIP switches to select specific boot devices. To use the bootloader
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environment set the boot_targets correspondingly. E.g.:
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# setenv boot_targets usb0
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To boot from an USB thumb drive.
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The device tree is loaded according to the filename in fdtfile. The
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following command will set the default device tree, which works on almost
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all variants (with less features of course):
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# setenv fdtfile freescale/fsl-ls1028a-kontron-sl28.dtb
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Set this to a device tree which fits your board variant.
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Connect your serial cable to SER1 and open your favorite terminal emulation
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program (baudrate 115200, 8n1). E.g.:
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$ picocom -b 115200 /dev/ttyUSB0
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You will get a warning reported by fdisk when you examine the SD card.
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This is because the genimage.cfg file doesn't specify the SD card size
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(as people will naturally have different sized cards), so the
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secondary GPT header is placed after the rootfs rather than at the end
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of the disk where it is expected to be.
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You will see something like this at boot time:
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[ 4.552797] GPT:Primary header thinks Alt. header is not at the end of the disk.
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[ 4.560237] GPT:266272 != 7864319
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[ 4.563565] GPT:Alternate GPT header not at the end of the disk.
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[ 4.569596] GPT:266272 != 7864319
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[ 4.572925] GPT: Use GNU Parted to correct GPT errors.
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What does not work
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==================
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For reasons unknown, the network card doesn't work if you use the original
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vendor bootloader. Board support patches for upstream u-boot are currently
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pending. Stay tuned.
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@ -0,0 +1,8 @@
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.0", DRIVERS=="fsl_enetc", NAME="eno0"
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.1", DRIVERS=="fsl_enetc", NAME="eno1"
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.2", DRIVERS=="fsl_enetc", NAME="eno2"
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.6", DRIVERS=="fsl_enetc", NAME="eno3"
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:01.0", DRIVERS=="fsl_enetc_vf", NAME="eno0vf0"
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:01.1", DRIVERS=="fsl_enetc_vf", NAME="eno0vf1"
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:01.2", DRIVERS=="fsl_enetc_vf", NAME="eno1vf0"
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:01.3", DRIVERS=="fsl_enetc_vf", NAME="eno1vf1"
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@ -0,0 +1,6 @@
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.5", DRIVERS=="mscc_felix", ATTR{phys_port_name}=="p0", NAME="swp0"
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.5", DRIVERS=="mscc_felix", ATTR{phys_port_name}=="p1", NAME="swp1"
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.5", DRIVERS=="mscc_felix", ATTR{phys_port_name}=="p2", NAME="swp2"
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.5", DRIVERS=="mscc_felix", ATTR{phys_port_name}=="p3", NAME="swp3"
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.5", DRIVERS=="mscc_felix", ATTR{phys_port_name}=="p4", NAME="swp4"
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.5", DRIVERS=="mscc_felix", ATTR{phys_port_name}=="p5", NAME="swp5"
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@ -0,0 +1,19 @@
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# Map the GBE0 and GBE1 names from the SMARC standard to the network
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# interfaces. This depends on the variant of the board.
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# get the variant compatible string
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PROGRAM=="/bin/grep '^kontron,sl28-var[1-4]$' /sys/firmware/devicetree/base/compatible", ENV{sl28_compatible}="%c"
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# variant 1
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.1", DRIVERS=="fsl_enetc", ENV{sl28_compatible}=="kontron,sl28-var1", NAME="gbe0"
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# variant 2
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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"
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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"
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# variant 3
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.0", DRIVERS=="fsl_enetc", ENV{sl28_compatible}=="kontron,sl28-var3", NAME="gbe0"
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# variant 4
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.0", DRIVERS=="fsl_enetc", ENV{sl28_compatible}=="kontron,sl28-var4", NAME="gbe0"
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ACTION=="add", SUBSYSTEM=="net", KERNELS=="0000:00:00.1", DRIVERS=="fsl_enetc", ENV{sl28_compatible}=="kontron,sl28-var4", NAME="gbe1"
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@ -0,0 +1,21 @@
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BR2_aarch64=y
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BR2_cortex_a72=y
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BR2_TOOLCHAIN_BUILDROOT_WCHAR=y
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BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV=y
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BR2_ROOTFS_OVERLAY="board/kontron/smarc-sal28/rootfs_overlay"
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BR2_ROOTFS_POST_BUILD_SCRIPT="board/kontron/smarc-sal28/post-build.sh"
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BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
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BR2_ROOTFS_POST_SCRIPT_ARGS="-c $(BINARIES_DIR)/genimage.cfg"
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BR2_LINUX_KERNEL=y
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BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG=y
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BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/kontron/smarc-sal28/linux.fragment"
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BR2_LINUX_KERNEL_DTS_SUPPORT=y
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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"
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BR2_LINUX_KERNEL_DTB_KEEP_DIRNAME=y
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BR2_LINUX_KERNEL_INSTALL_TARGET=y
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BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
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BR2_TARGET_ROOTFS_EXT2=y
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BR2_TARGET_ROOTFS_EXT2_4=y
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BR2_TARGET_ROOTFS_EXT2_SIZE="128M"
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BR2_PACKAGE_HOST_GENIMAGE=y
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BR2_PACKAGE_HOST_UBOOT_TOOLS=y
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