Documentation: teaching: Review ARM lab #287
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Review and improve contents. Do minor coding updates to skeleton. Signed-off-by: Razvan Deaconescu <[email protected]>
sergiu121
reviewed
May 18, 2021
| -kernel arch/arm/boot/Image -nographic -dtb arch/arm/boot/dts/imx6ul-14x14-evk.dtb \ | ||
| -append "root=/dev/mmcblk0 rw console=ttymxc0 loglevel=8 earlycon printk" -sd tools/labs/core-image-minimal-qemuarm.ext4 | ||
| .. note:: LCDIF and ASRC devices are not well supported with ``Qemu``. Remove them from compilation. |
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Explanation is two lines below.
sergiu121
reviewed
May 18, 2021
| 0209c000-0209ffff : 209c000.gpio gpio@209c000 | ||
| 021a0000-021a3fff : 21a0000.i2c i2c@21a0000 | ||
| 80000000-9fffffff : System RAM | ||
| $ cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq |
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That's not the file that we run cat on. It's /proc/iomem
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Yes. @razvand can you fix this. Other than that it looks good to me.
tavip
reviewed
May 19, 2021
| └── var | ||
| As for ``x86`` we will make use of Yocto rootfs images. In order to download an ``ext4`` rootfs image for ``arm32`` one needs to run: | ||
| root@so2$ tree -d -L 2 |
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There are a lot of whitespace code changes, are these intentional?
valighita
reviewed
May 19, 2021
| $ make -j8 | ||
| $ ./build/qemu-system-arm | ||
| $ git clone https://gitlab.com/qemu-project/qemu.git | ||
| $ ./configure --target-list=arm-softmmu --disable-docs |
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Maybe make it clear that this must be done from the qemu directory after cloning.
valighita
reviewed
May 19, 2021
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| Use the ``4-hello/`` folder in the lab skeleton folder. | ||
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| Implement a simple kernel module that prints a message at load/unload time. Compile it and load it on ``i.MX6UL`` emulated platform. |
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The module is already implemented. This might cause confusion.
valighita
approved these changes
May 19, 2021
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Review and improve contents. Do minor coding updates to skeleton.