docs/system/arm: Document the Xilinx Versal Virt board
Document the Xilinx Versal Virt board. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 20200803164749.301971-2-edgar.iglesias@gmail.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Edgar E. Iglesias
Peter Maydell
parent
de206dfd80
commit
ff9e157bdc
|
|
@ -894,7 +894,7 @@ F: hw/misc/zynq*
|
|||
F: include/hw/misc/zynq*
|
||||
X: hw/ssi/xilinx_*
|
||||
|
||||
Xilinx ZynqMP
|
||||
Xilinx ZynqMP and Versal
|
||||
M: Alistair Francis <alistair@alistair23.me>
|
||||
M: Edgar E. Iglesias <edgar.iglesias@gmail.com>
|
||||
M: Peter Maydell <peter.maydell@linaro.org>
|
||||
|
|
@ -905,6 +905,7 @@ F: include/hw/*/xlnx*.h
|
|||
F: include/hw/ssi/xilinx_spips.h
|
||||
F: hw/display/dpcd.c
|
||||
F: include/hw/display/dpcd.h
|
||||
F: docs/system/arm/xlnx-versal-virt.rst
|
||||
|
||||
ARM ACPI Subsystem
|
||||
M: Shannon Zhao <shannon.zhaosl@gmail.com>
|
||||
|
|
|
|||
|
|
@ -0,0 +1,176 @@
|
|||
Xilinx Versal Virt (``xlnx-versal-virt``)
|
||||
=========================================
|
||||
|
||||
Xilinx Versal is a family of heterogeneous multi-core SoCs
|
||||
(System on Chip) that combine traditional hardened CPUs and I/O
|
||||
peripherals in a Processing System (PS) with runtime programmable
|
||||
FPGA logic (PL) and an Artificial Intelligence Engine (AIE).
|
||||
|
||||
More details here:
|
||||
https://www.xilinx.com/products/silicon-devices/acap/versal.html
|
||||
|
||||
The family of Versal SoCs share a single architecture but come in
|
||||
different parts with different speed grades, amounts of PL and
|
||||
other differences.
|
||||
|
||||
The Xilinx Versal Virt board in QEMU is a model of a virtual board
|
||||
(does not exist in reality) with a virtual Versal SoC without I/O
|
||||
limitations. Currently, we support the following cores and devices:
|
||||
|
||||
Implemented CPU cores:
|
||||
|
||||
- 2 ACPUs (ARM Cortex-A72)
|
||||
|
||||
Implemented devices:
|
||||
|
||||
- Interrupt controller (ARM GICv3)
|
||||
- 2 UARTs (ARM PL011)
|
||||
- An RTC (Versal built-in)
|
||||
- 2 GEMs (Cadence MACB Ethernet MACs)
|
||||
- 8 ADMA (Xilinx zDMA) channels
|
||||
- 2 SD Controllers
|
||||
- OCM (256KB of On Chip Memory)
|
||||
- DDR memory
|
||||
|
||||
QEMU does not yet model any other devices, including the PL and the AI Engine.
|
||||
|
||||
Other differences between the hardware and the QEMU model:
|
||||
|
||||
- QEMU allows the amount of DDR memory provided to be specified with the
|
||||
``-m`` argument. If a DTB is provided on the command line then QEMU will
|
||||
edit it to include suitable entries describing the Versal DDR memory ranges.
|
||||
|
||||
- QEMU provides 8 virtio-mmio virtio transports; these start at
|
||||
address ``0xa0000000`` and have IRQs from 111 and upwards.
|
||||
|
||||
Running
|
||||
"""""""
|
||||
If the user provides an Operating System to be loaded, we expect users
|
||||
to use the ``-kernel`` command line option.
|
||||
|
||||
Users can load firmware or boot-loaders with the ``-device loader`` options.
|
||||
|
||||
When loading an OS, QEMU generates a DTB and selects an appropriate address
|
||||
where it gets loaded. This DTB will be passed to the kernel in register x0.
|
||||
|
||||
If there's no ``-kernel`` option, we generate a DTB and place it at 0x1000
|
||||
for boot-loaders or firmware to pick it up.
|
||||
|
||||
If users want to provide their own DTB, they can use the ``-dtb`` option.
|
||||
These DTBs will have their memory nodes modified to match QEMU's
|
||||
selected ram_size option before they get passed to the kernel or FW.
|
||||
|
||||
When loading an OS, we turn on QEMU's PSCI implementation with SMC
|
||||
as the PSCI conduit. When there's no ``-kernel`` option, we assume the user
|
||||
provides EL3 firmware to handle PSCI.
|
||||
|
||||
A few examples:
|
||||
|
||||
Direct Linux boot of a generic ARM64 upstream Linux kernel:
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ qemu-system-aarch64 -M xlnx-versal-virt -m 2G \
|
||||
-serial mon:stdio -display none \
|
||||
-kernel arch/arm64/boot/Image \
|
||||
-nic user -nic user \
|
||||
-device virtio-rng-device,bus=virtio-mmio-bus.0 \
|
||||
-drive if=none,index=0,file=hd0.qcow2,id=hd0,snapshot \
|
||||
-drive file=qemu_sd.qcow2,if=sd,index=0,snapshot \
|
||||
-device virtio-blk-device,drive=hd0 -append root=/dev/vda
|
||||
|
||||
Direct Linux boot of PetaLinux 2019.2:
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ qemu-system-aarch64 -M xlnx-versal-virt -m 2G \
|
||||
-serial mon:stdio -display none \
|
||||
-kernel petalinux-v2019.2/Image \
|
||||
-append "rdinit=/sbin/init console=ttyAMA0,115200n8 earlycon=pl011,mmio,0xFF000000,115200n8" \
|
||||
-net nic,model=cadence_gem,netdev=net0 -netdev user,id=net0 \
|
||||
-device virtio-rng-device,bus=virtio-mmio-bus.0,rng=rng0 \
|
||||
-object rng-random,filename=/dev/urandom,id=rng0
|
||||
|
||||
Boot PetaLinux 2019.2 via ARM Trusted Firmware (2018.3 because the 2019.2
|
||||
version of ATF tries to configure the CCI which we don't model) and U-boot:
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ qemu-system-aarch64 -M xlnx-versal-virt -m 2G \
|
||||
-serial stdio -display none \
|
||||
-device loader,file=petalinux-v2018.3/bl31.elf,cpu-num=0 \
|
||||
-device loader,file=petalinux-v2019.2/u-boot.elf \
|
||||
-device loader,addr=0x20000000,file=petalinux-v2019.2/Image \
|
||||
-nic user -nic user \
|
||||
-device virtio-rng-device,bus=virtio-mmio-bus.0,rng=rng0 \
|
||||
-object rng-random,filename=/dev/urandom,id=rng0
|
||||
|
||||
Run the following at the U-Boot prompt:
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
Versal>
|
||||
fdt addr $fdtcontroladdr
|
||||
fdt move $fdtcontroladdr 0x40000000
|
||||
fdt set /timer clock-frequency <0x3dfd240>
|
||||
setenv bootargs "rdinit=/sbin/init maxcpus=1 console=ttyAMA0,115200n8 earlycon=pl011,mmio,0xFF000000,115200n8"
|
||||
booti 20000000 - 40000000
|
||||
fdt addr $fdtcontroladdr
|
||||
|
||||
Boot Linux as DOM0 on Xen via U-Boot:
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ qemu-system-aarch64 -M xlnx-versal-virt -m 4G \
|
||||
-serial stdio -display none \
|
||||
-device loader,file=petalinux-v2019.2/u-boot.elf,cpu-num=0 \
|
||||
-device loader,addr=0x30000000,file=linux/2018-04-24/xen \
|
||||
-device loader,addr=0x40000000,file=petalinux-v2019.2/Image \
|
||||
-nic user -nic user \
|
||||
-device virtio-rng-device,bus=virtio-mmio-bus.0,rng=rng0 \
|
||||
-object rng-random,filename=/dev/urandom,id=rng0
|
||||
|
||||
Run the following at the U-Boot prompt:
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
Versal>
|
||||
fdt addr $fdtcontroladdr
|
||||
fdt move $fdtcontroladdr 0x20000000
|
||||
fdt set /timer clock-frequency <0x3dfd240>
|
||||
fdt set /chosen xen,xen-bootargs "console=dtuart dtuart=/uart@ff000000 dom0_mem=640M bootscrub=0 maxcpus=1 timer_slop=0"
|
||||
fdt set /chosen xen,dom0-bootargs "rdinit=/sbin/init clk_ignore_unused console=hvc0 maxcpus=1"
|
||||
fdt mknode /chosen dom0
|
||||
fdt set /chosen/dom0 compatible "xen,multiboot-module"
|
||||
fdt set /chosen/dom0 reg <0x00000000 0x40000000 0x0 0x03100000>
|
||||
booti 30000000 - 20000000
|
||||
|
||||
Boot Linux as Dom0 on Xen via ARM Trusted Firmware and U-Boot:
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
$ qemu-system-aarch64 -M xlnx-versal-virt -m 4G \
|
||||
-serial stdio -display none \
|
||||
-device loader,file=petalinux-v2018.3/bl31.elf,cpu-num=0 \
|
||||
-device loader,file=petalinux-v2019.2/u-boot.elf \
|
||||
-device loader,addr=0x30000000,file=linux/2018-04-24/xen \
|
||||
-device loader,addr=0x40000000,file=petalinux-v2019.2/Image \
|
||||
-nic user -nic user \
|
||||
-device virtio-rng-device,bus=virtio-mmio-bus.0,rng=rng0 \
|
||||
-object rng-random,filename=/dev/urandom,id=rng0
|
||||
|
||||
Run the following at the U-Boot prompt:
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
Versal>
|
||||
fdt addr $fdtcontroladdr
|
||||
fdt move $fdtcontroladdr 0x20000000
|
||||
fdt set /timer clock-frequency <0x3dfd240>
|
||||
fdt set /chosen xen,xen-bootargs "console=dtuart dtuart=/uart@ff000000 dom0_mem=640M bootscrub=0 maxcpus=1 timer_slop=0"
|
||||
fdt set /chosen xen,dom0-bootargs "rdinit=/sbin/init clk_ignore_unused console=hvc0 maxcpus=1"
|
||||
fdt mknode /chosen dom0
|
||||
fdt set /chosen/dom0 compatible "xen,multiboot-module"
|
||||
fdt set /chosen/dom0 reg <0x00000000 0x40000000 0x0 0x03100000>
|
||||
booti 30000000 - 20000000
|
||||
|
||||
|
|
@ -93,6 +93,7 @@ undocumented; you can get a complete list by running
|
|||
arm/sx1
|
||||
arm/stellaris
|
||||
arm/virt
|
||||
arm/xlnx-versal-virt
|
||||
|
||||
Arm CPU features
|
||||
================
|
||||
|
|
|
|||
Loading…
Reference in New Issue