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[PULL 04/29] docs/system: Document Arm Versatile Express boards
From: |
Peter Maydell |
Subject: |
[PULL 04/29] docs/system: Document Arm Versatile Express boards |
Date: |
Thu, 21 May 2020 20:15:45 +0100 |
Provide a minimal documentation of the Versatile Express boards
(vexpress-a9, vexpress-a15).
Signed-off-by: Peter Maydell <address@hidden>
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
Reviewed-by: Edgar E. Iglesias <address@hidden>
Reviewed-by: Alex Bennée <address@hidden>
Message-id: address@hidden
---
docs/system/arm/vexpress.rst | 60 ++++++++++++++++++++++++++++++++++++
docs/system/target-arm.rst | 1 +
MAINTAINERS | 1 +
3 files changed, 62 insertions(+)
create mode 100644 docs/system/arm/vexpress.rst
diff --git a/docs/system/arm/vexpress.rst b/docs/system/arm/vexpress.rst
new file mode 100644
index 00000000000..7f1bcbef078
--- /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 d459efb3d20..1c759aa1a08 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
diff --git a/MAINTAINERS b/MAINTAINERS
index 1e006c98fab..6a9280c1b03 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -828,6 +828,7 @@ M: Peter Maydell <address@hidden>
L: address@hidden
S: Maintained
F: hw/arm/vexpress.c
+F: docs/system/arm/vexpress.rst
Versatile PB
M: Peter Maydell <address@hidden>
--
2.20.1
- [PULL 00/29] target-arm queue, Peter Maydell, 2020/05/21
- [PULL 01/29] tests/acceptance: Add a test for the canon-a1100 machine, Peter Maydell, 2020/05/21
- [PULL 02/29] docs/system: Add 'Arm' to the Integrator/CP document title, Peter Maydell, 2020/05/21
- [PULL 03/29] docs/system: Sort Arm board index into alphabetical order, Peter Maydell, 2020/05/21
- [PULL 04/29] docs/system: Document Arm Versatile Express boards,
Peter Maydell <=
- [PULL 05/29] docs/system: Document the various MPS2 models, Peter Maydell, 2020/05/21
- [PULL 06/29] docs/system: Document Musca boards, Peter Maydell, 2020/05/21
- [PULL 07/29] linux-user/arm: BKPT should cause SIGTRAP, not be a syscall, Peter Maydell, 2020/05/21
- [PULL 08/29] linux-user/arm: Remove bogus SVC 0xf0002 handling, Peter Maydell, 2020/05/21
- [PULL 09/29] linux-user/arm: Handle invalid arm-specific syscalls correctly, Peter Maydell, 2020/05/21
- [PULL 10/29] linux-user/arm: Fix identification of syscall numbers, Peter Maydell, 2020/05/21
- [PULL 11/29] target/arm: Remove unused GEN_NEON_INTEGER_OP macro, Peter Maydell, 2020/05/21
- [PULL 12/29] hw: Move i.MX watchdog driver to hw/watchdog, Peter Maydell, 2020/05/21
- [PULL 13/29] hw/watchdog: Implement full i.MX watchdog support, Peter Maydell, 2020/05/21
- [PULL 14/29] hw/arm/fsl-imx25: Wire up watchdog, Peter Maydell, 2020/05/21