Introduction

The hal_microchip is a set of register definitions for Microchip SoC's. The HAL directory structure detailed below.

Directory Structure

.
├── CMakeLists.txt
├── dts
│   └── microchip
│       └── mec5
│           ├── MEC5 PINCTRL DTSI files
│
├── include
│   └── dt-bindings
│       ├── sam
|       |   └── sam_d5x_e5x — dt-binding header files for the SAM_D5X_E5X family devices
│
├── mec
│   ├── Legacy MEC150x/2x C chip and peripheral header files
│
├── mec5
│   ├── CMakeLists.txt
│   ├── devices
│   │   ├── MEC5 HAL chip and peripheral header files
│   └── drivers
│       ├── MEC5 HAL peripheral C source files
│
├── mpfs
│   ├── PolarFire board and HAL files
│
├── pic32c
│   ├── CMakeLists.txt
│   ├── pic32cm_jh — DFP header files for PIC32CM JH family devices
│   ├── pic32cz_sg — DFP header files for PIC32CX SG family devices
│   ├── pic32cz_ca — DFP header files for PIC32CZ CA family devices
│
├── sam
│   ├── CMakeLists.txt
│   ├── sam_d5x_e5x — DFP header files for SAM_D5X_E5X family devices
│
├── README.md
│
└── zephyr
    └── module.yml

• MEC5 chips Zephyr device tree PINCFG DTSI files
• Includes specific for these platforms
  • devicetree bindings
• Legacy MEC152x header files
• MEC5 HAL chip and peripheral header and C source files
• Device family DFP header files of PIC32C devices
• Device family DFP header files of SAM devices
• This README file
• ZephyrRTOS module directory (zephyr).

How to submit code

Any contribution should follow the How to submit code using as premisses the Zephyr Contribution Guidelines. For more information about External Modules see Modules Section in special Submitting Changes to Modules

MEC5 HAL

The MEC5 HAL currently support Microchip MEC172x (named MECH172x in Zephyr SoC), MEC174x, and MEC175x.
On the Zephyr side the SoC layer build rules set CONFIG_HAS_MEC5_HAL=y.
The top level CMakeLists.txt then processes the hal_microchip/mec5 subfolder.
The MEC5 HAL device is chosen using Zephyr CONFIG_SOC_SERIES and CONFIG_SOC.
Zephyr SoC layer soc.h for MECH172x, MEC174x, and MEC175x include device_mec5.h from the MEC5 HAL.
Zephyr drivres and applications should include individual HAL API headers to access specific peripherals.

MPFS PolarFile HAL

The Microchip Polarfire SOC HAL was downloaded from:

https://github.com/polarfire-soc/platform

Addditionally, the bare metal samples from https://github.com/polarfire-soc/polarfire-soc-bare-metal-examples are required to extract the Icicle Kit bopard configuration files.

Both are from Tag 21.08

The following changes were made:

• platform-2021.08 top folder renamed to mpfs and located at modules/hal/microchip
• The applications/mpfs-pmp-demo/mpfs-pmp-app-u54-1/src/boards folder is copied to modules/hal/microchip/mpfs