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For u-boot 2017.03 and Linux 4.9.11, you need to use the following newer Linaro arm compilier.
| Info |
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$ wget -c httpshttp://releases.linaro.org/components/toolchain/binaries/6.2-2016.11/arm-linux-gnueabihf/gcc-linaro-6.2.1-2016.11-x86_64_arm-linux-gnueabihf.tar.xz $ sudo tar -C /opt -xJf gcc-linaro-6.2.1-2016.11-x86_64_arm-linux-gnueabihf.tar.xz $ export CC=/opt/gcc-linaro-6.2.1-2016.11-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf- |
For u-boot 2016.03 and Linux 4.1.15, you need to use the following newer Linaro arm compilier.
| Info |
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$ wget -c httpshttp://releases.linaro.org/archive/15.05/components/toolchain/binaries/arm-linux-gnueabihf/gcc-linaro-4.9-2015.05-x86_64_arm-linux-gnueabihf.tar.xz $ sudo tar -C /opt -xJf gcc-linaro-4.9-2015.05-x86_64_arm-linux-gnueabihf.tar.xz $ export CC=/opt/gcc-linaro-4.9-2015.05-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf- |
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Ubuntu 14.04 Download:
Verify:
| Info |
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$ md5sum imx7-ubuntu1404.tar.gz
6cb950287c96f24901f4d1472a10324b imx7-ubuntu1404.tar.gz
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Yocto Build Root File System:
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For these instruction, we are assuming: DISK=/dev/mmcblk0, "lsblk" is very useful for determining the device id.
| Info |
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$ export DISK=/dev/mmcblk0
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Erase SD card:
| Info |
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$ sudo dd if=/dev/zero of=${DISK} bs=1M count=16 |
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| Info |
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| icon | false |
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| title | directory where your root file system is |
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$ sudo tar xvfz <filename.tar.gz> -C /media/rootfs
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Ubuntu 14.04:
| Info |
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| icon | false |
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| title | directory where your root file system is |
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$ sudo tar xvfz imx7-ubuntu1404.tar.gz -C /media/rootfs
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Copy Kernel Modules:
| Info |
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| icon | false |
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| title | ~/smarc-fsl-linux-kernel |
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$ sudo make ARCH=arm INSTALL_MOD_PATH=/media/rootfs modules_install
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| Note |
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- After compiled u-boot, it will generated u-boot.imx (u-boot-dtb.imx if using u-boot v2017.03) ) and u-boot.bin. The only difference is IVT header that will tell i.MX7 internal ROM where to load u-boot. If the firmware in SPI flash need to be update or empty. Users could pull the TEST# pin on carrier board to low. In this way, SMARC-FiMX7 will boot up to SD card first. The command to copy u-boot.imx (rename u-boot-dtb.imx to u-boot.imx if using v2017.03) to SD card now is:
$ sudo dd if=u-boot.imx of=${DISK} bs=512 seek=2
In this case, user will only need to copy uEnv.txt, zImage and device tree blob to partition one of your boot device. - MAC address is factory pre-installed at on board I2C EEPROM at offset 60 bytes and 66 bytes (ENET2). It starts with Embedian's vendor code 10:0D:32. u-boot will read it and pass this parameter to kernel.
- If your rootfs is yocto built, the kernel modules will be included in the rootfs.
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Edit: /etc/network/interfaces
| Info |
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$ sudo vim /media/rootfs/etc/network/interfaces
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Add:
| Info |
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| icon | false |
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| title | /media/rootfs/etc/network/interfaces |
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auto loiface lo inet loopback
auto eth0
iface eth0 inet dhcp
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For these instruction, we are assuming: DISK=/dev/mmcblk0, "lsblk" is very useful for determining the device id.
| Info |
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$ export DISK=/dev/mmcblk0
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Mount Partitions:
On some systems, these partitions may be auto-mounted...
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Copy zImage to rootfs partition:
| Info |
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$ sudo cp -v /media/boot/zImage /media/rootfs/home/root
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| Note |
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- If your rootfs is Ubuntu 14.04, copy to /media/rootfs/home/ubuntu instead of /media/rootfs/home/root
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Copy device tree blob to rootfs partition:
| Info |
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$ sudo cp -v /media/boot/dtbs/imx7s-smarcfimx7.dtb /media/rootfs/home/root/imx7s-smarcfimx7.dtb
$ sudo cp -v /media/boot/dtbs/imx7d-smarcfimx7.dtb /media/rootfs/home/root/imx7d-smarcfimx7.dtb
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Copy real rootfs to rootfs partition:
Yocto Built Root File Systems
| Info |
|---|
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$ pushd /media/rootfs
$ sudo tar cvfz ~/smarcfimx7-emmc-rootfs.tar.gz .
$ sudo mv ~/smarcfimx7-emmc-rootfs.tar.gz /media/rootfs/home/root
$ popd
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Ubuntu 14.04 Root File Systems
| Info |
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$ sudo vim /media/rootfs/etc/udev/rules.d/70-persistent-net.rules
Delete all contents starting with "SUBSYSTEM==" $ pushd /media/rootfs
$ sudo tar cvfz ~/smarcfimx7-emmc-rootfs.tar.gz .
$ sudo mv ~/smarcfimx7-emmc-rootfs.tar.gz /media/rootfs/home/ubuntu
$ popd
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Remove SD card:
| Info |
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$ sync
$ sudo umount /media/boot
$ sudo umount /media/rootfs
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Install Kernel Device Tree Binary
| Info |
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$ sudo mkdir -p /media/boot/dtbs
$ sudo cp -v imx7s-smarcfimx7.dtb imx7d-smarcfimxd.dtb /media/boot/dtbs
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Install Root File System
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| Info |
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$ sudo tar -zxvf smarcfimx7-emmc-rootfs.tar.gz -C /media/rootfs |
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