nuttx/Documentation/platforms/risc-v/mpfs/index.rst

82 lines
1.8 KiB
ReStructuredText

===========================
Microchip Polarfile (MPFS)
===========================
RV64 64-bit RISC-V multiprocessor-based Microcontroller Subsystem
(MPFS025T, MPFS095T, MPFS160T, MPFS250T, MPFS460T)
MPFS Toolchain
==============
A generic RISC-V toolchain can be used to build MPFS projects.
Like: https://xpack.github.io/riscv-none-embed-gcc or https://github.com/sifive/freedom-tools/releases
Booting
=======
The NuttX port for now relies on HSS bootloader to carry on some hardware initializations.
Building and flashing
=====================
First make sure that ``hss-payload-generator`` is installed.
Available from: https://github.com/polarfire-soc/hart-software-services
This tool is used to convert the ELF/bin to a compatible HSS payload image
Configure the NuttX project: ``./tools/configure.sh icicle:nsh``
Run ``make`` to build the project.
Create HSS payload bin::
hss-payload-generator -v -c hss-nuttx.yml payload.bin
Debugging with OpenOCD
======================
Compatible OpenOCD and configs can be downloaded from:
https://www.microsemi.com/product-directory/design-tools/4879-softconsole#downloads
OpenOCD can then be used::
openocd -c "set DEVICE MPFS" --file board/microsemi-riscv.cfg
Peripheral Support
==================
The following list indicates the state of peripherals' support in NuttX:
============ ======= =====
Peripheral Support NOTES
============ ======= =====
GPIO Yes
MMUART Yes Uart mode only
SPI No
I2C No
Timers No
Watchdog No
RTC No
CAN No
eNVM No
USB No
eMMC SD/SDIO No
============ ======= =====
Supported Boards
================
.. toctree::
:glob:
:maxdepth: 1
boards/*/*