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Arm Versatile boards (``versatileab``, ``versatilepb``)
=======================================================
The Arm Versatile baseboard is emulated with the following devices:
- ARM926E, ARM1136 or Cortex-A8 CPU
- PL190 Vectored Interrupt Controller
- Four PL011 UARTs
- SMC 91c111 Ethernet adapter
- PL110 LCD controller
- PL050 KMI with PS/2 keyboard and mouse.
- PCI host bridge. Note the emulated PCI bridge only provides access
to PCI memory space. It does not provide access to PCI IO space. This
means some devices (eg. ne2k_pci NIC) are not usable, and others (eg.
rtl8139 NIC) are only usable when the guest drivers use the memory
mapped control registers.
- PCI OHCI USB controller.
- LSI53C895A PCI SCSI Host Bus Adapter with hard disk and CD-ROM
devices.
- PL181 MultiMedia Card Interface with SD card.
Booting a Linux kernel
----------------------
Building a current Linux kernel with ``versatile_defconfig`` should be
enough to get something running. Nowadays an out-of-tree build is
recommended (and also useful if you build a lot of different targets).
In the following example $BLD points to the build directory and $SRC
points to the root of the Linux source tree. You can drop $SRC if you
are running from there.
.. code-block:: bash
$ make O=$BLD -C $SRC ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- versatile_defconfig
$ make O=$BLD -C $SRC ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-
You may want to enable some additional modules if you want to boot
something from the SCSI interface::
CONFIG_PCI=y
CONFIG_PCI_VERSATILE=y
CONFIG_SCSI=y
CONFIG_SCSI_SYM53C8XX_2=y
You can then boot with a command line like:
.. code-block:: bash
$ qemu-system-arm -machine type=versatilepb \
-serial mon:stdio \
-drive if=scsi,driver=file,filename=debian-buster-armel-rootfs.ext4 \
-kernel zImage \
-dtb versatile-pb.dtb \
-append "console=ttyAMA0 ro root=/dev/sda"
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