system/arm/vexpress.rst

1 Arm Versatile Express boards (``vexpress-a9``, ``vexpress-a15``)
4 QEMU models two variants of the Arm Versatile Express development
7 - ``vexpress-a9`` models the combination of the Versatile Express
9 - ``vexpress-a15`` models the combination of the Versatile Express
17 - PL041 audio
18 - PL181 SD controller
19 - PL050 keyboard and mouse
20 - PL011 UARTs
21 - SP804 timers
22 - I2C controller
23 - PL031 RTC
24 - PL111 LCD display controller
25 - Flash memory
26 - LAN9118 ethernet
30 - SP810 system control block
31 - PCI-express
32 - USB controller (Philips ISP1761)
33 - Local DAP ROM
34 - CoreSight interfaces
35 - PL301 AXI interconnect
36 - SCC
37 - System counter
38 - HDLCD controller (``vexpress-a15``)
39 - SP805 watchdog
40 - PL341 dynamic memory controller
41 - DMA330 DMA controller
42 - PL354 static memory controller
43 - BP147 TrustZone Protection Controller
44 - TrustZone Address Space Controller
48 - QEMU will default to creating one CPU unless you pass a different
49   ``-smp`` argument
50 - QEMU allows the amount of RAM provided to be specified with the
51   ``-m`` argument
52 - QEMU defaults to providing a CPU which does not provide either
54   must enable them with ``-machine secure=on`` and ``-machine
56 - QEMU provides 4 virtio-mmio virtio transports; these start at
57   address ``0x10013000`` for ``vexpress-a9`` and at ``0x1c130000`` for
58   ``vexpress-a15``, and have IRQs from 40 upwards. If a dtb is
61 - QEMU does not currently support either dynamic or static remapping
66 ----------------------
69 enough to get something running. Nowadays an out-of-tree build is
75 .. code-block:: bash
77   $ make O=$BLD -C $SRC ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- multi_v7_defconfig
78   $ make O=$BLD -C $SRC ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-
82 DTB you could also add devices to the virtio-mmio bus.
84 .. code-block:: bash
86   $ qemu-system-arm -cpu cortex-a15 -smp 4 -m 4096 \
87       -machine type=vexpress-a15 -serial mon:stdio \
88       -drive if=sd,driver=file,filename=armel-rootfs.ext4 \
89       -kernel zImage  \
90       -dtb vexpress-v2p-ca15-tc1.dtb \
91       -append "console=ttyAMA0 root=/dev/mmcblk0 ro"