diff options
| -rw-r--r-- | MAINTAINERS | 1 | ||||
| -rw-r--r-- | docs/system/arm/vexpress.rst | 60 | ||||
| -rw-r--r-- | docs/system/target-arm.rst | 1 |
3 files changed, 62 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 1e006c9..6a9280c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -828,6 +828,7 @@ M: Peter Maydell <peter.maydell@linaro.org> L: qemu-arm@nongnu.org S: Maintained F: hw/arm/vexpress.c +F: docs/system/arm/vexpress.rst Versatile PB M: Peter Maydell <peter.maydell@linaro.org> diff --git a/docs/system/arm/vexpress.rst b/docs/system/arm/vexpress.rst new file mode 100644 index 0000000..7f1bcbe --- /dev/null +++ b/docs/system/arm/vexpress.rst @@ -0,0 +1,60 @@ +Arm Versatile Express boards (``vexpress-a9``, ``vexpress-a15``) +================================================================ + +QEMU models two variants of the Arm Versatile Express development +board family: + +- ``vexpress-a9`` models the combination of the Versatile Express + motherboard and the CoreTile Express A9x4 daughterboard +- ``vexpress-a15`` models the combination of the Versatile Express + motherboard and the CoreTile Express A15x2 daughterboard + +Note that as this hardware does not have PCI, IDE or SCSI, +the only available storage option is emulated SD card. + +Implemented devices: + +- PL041 audio +- PL181 SD controller +- PL050 keyboard and mouse +- PL011 UARTs +- SP804 timers +- I2C controller +- PL031 RTC +- PL111 LCD display controller +- Flash memory +- LAN9118 ethernet + +Unimplemented devices: + +- SP810 system control block +- PCI-express +- USB controller (Philips ISP1761) +- Local DAP ROM +- CoreSight interfaces +- PL301 AXI interconnect +- SCC +- System counter +- HDLCD controller (``vexpress-a15``) +- SP805 watchdog +- PL341 dynamic memory controller +- DMA330 DMA controller +- PL354 static memory controller +- BP147 TrustZone Protection Controller +- TrustZone Address Space Controller + +Other differences between the hardware and the QEMU model: + +- QEMU will default to creating one CPU unless you pass a different + ``-smp`` argument +- QEMU allows the amount of RAM provided to be specified with the + ``-m`` argument +- QEMU defaults to providing a CPU which does not provide either + TrustZone or the Virtualization Extensions: if you want these you + must enable them with ``-machine secure=on`` and ``-machine + virtualization=on`` +- QEMU provides 4 virtio-mmio virtio transports; these start at + address ``0x10013000`` for ``vexpress-a9`` and at ``0x1c130000`` for + ``vexpress-a15``, and have IRQs from 40 upwards. If a dtb is + provided on the command line then QEMU will edit it to include + suitable entries describing these transports for the guest. diff --git a/docs/system/target-arm.rst b/docs/system/target-arm.rst index d459efb..1c759aa 100644 --- a/docs/system/target-arm.rst +++ b/docs/system/target-arm.rst @@ -78,6 +78,7 @@ undocumented; you can get a complete list by running arm/integratorcp arm/realview arm/versatile + arm/vexpress arm/musicpal arm/nseries arm/orangepi |