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Split the USB MMIO regions to better keep track of the implemented vs. unimplemented regions. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Bernhard Beschow <shentey@gmail.com> Message-id: 20250223114708.1780-16-shentey@gmail.com [PMM: drop "static const" from usb_table for GCC 7.5] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
70 lines
2 KiB
ReStructuredText
70 lines
2 KiB
ReStructuredText
NXP i.MX 8M Plus Evaluation Kit (``imx8mp-evk``)
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================================================
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The ``imx8mp-evk`` machine models the i.MX 8M Plus Evaluation Kit, based on an
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i.MX 8M Plus SoC.
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Supported devices
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-----------------
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The ``imx8mp-evk`` machine implements the following devices:
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* Up to 4 Cortex-A53 cores
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* Generic Interrupt Controller (GICv3)
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* 4 UARTs
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* 3 USDHC Storage Controllers
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* 1 Designware PCI Express Controller
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* 1 Ethernet Controller
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* 2 Designware USB 3 Controllers
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* 5 GPIO Controllers
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* 6 I2C Controllers
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* 3 SPI Controllers
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* 3 Watchdogs
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* 6 General Purpose Timers
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* Secure Non-Volatile Storage (SNVS) including an RTC
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* Clock Tree
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Boot options
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------------
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The ``imx8mp-evk`` machine can start a Linux kernel directly using the standard
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``-kernel`` functionality.
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Direct Linux Kernel Boot
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''''''''''''''''''''''''
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Probably the easiest way to get started with a whole Linux system on the machine
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is to generate an image with Buildroot. Version 2024.11.1 is tested at the time
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of writing and involves three steps. First run the following commands in the
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toplevel directory of the Buildroot source tree:
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.. code-block:: bash
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$ make freescale_imx8mpevk_defconfig
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$ make
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Once finished successfully there is an ``output/image`` subfolder. Navigate into
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it and resize the SD card image to a power of two:
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.. code-block:: bash
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$ qemu-img resize sdcard.img 256M
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Finally, the device tree needs to be patched with the following commands which
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will remove the ``cpu-idle-states`` properties from CPU nodes:
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.. code-block:: bash
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$ dtc imx8mp-evk.dtb | sed '/cpu-idle-states/d' > imx8mp-evk-patched.dts
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$ dtc imx8mp-evk-patched.dts -o imx8mp-evk-patched.dtb
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Now that everything is prepared the machine can be started as follows:
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.. code-block:: bash
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$ qemu-system-aarch64 -M imx8mp-evk -smp 4 -m 3G \
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-display none -serial null -serial stdio \
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-kernel Image \
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-dtb imx8mp-evk-patched.dtb \
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-append "root=/dev/mmcblk2p2" \
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-drive file=sdcard.img,if=sd,bus=2,format=raw,id=mmcblk2
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