Release Notes

This document highlights the key features and support included in the BSP-Yocto-AM62x-PD23.1.0 software release for the phyCORE-AM62x SOM and development kit.

Board Support Package Status

BSP Operating system

Linux

Release Status

RELEASED

Release Date

2023-04-21

Repository

PHYTEC Public Repos

Binaries

BSP-Yocto-AM62x-PD23.1.0

New in this Release

Yocto

  • Switched to PHYTEC Yogurt Reference Linux Distribution and phytec-qt5demo-image

Linux Kernel

  • New device tree overlay for co-processors (k3-am62-phyboard-lyra-rpmsg.dtbo)

  • New device tree overlay for GPIO-controlled Fans (k3-am62-phyboard-lyra-gpio-fan.dtbo)

U-Boot Bootloader

  • Storage device for the boot environment gets determined by the boot device used

    • For SDMMC and EMMC, environment is stored in the boot partition (CONFIG_ENV_IS_IN_FAT=y)

    • For SPI NOR Flash, environment is stored at a fixed offset

  • Automatic SOM variant detection (implemented but not active)

  • New DDR settings with extended temperature range + lower refresh interval

  • Switched kernel command line to look for fixed devices instead of partition UUIDs

    • Booting from EMMC mounts rootfs via /dev/mmcblk0

    • Booting from SDMMC mounts rootfs via /dev/mmcblk1

  • OSPI NOR flash boot

Software Versioning

The BSP-Yocto-AM62x-PD23.1.0 software release is mostly based off of TI’s v08.06.00.002 Processor SDK Linux release and shares much of the same components and features.

Software Versioning

Tested Build Environment

Ubuntu 20.04

Ubuntu 20.04 Release Downloads

Linux Kernel

5.10.158 (tag: v5.10.158-phy2)

PHYTEC Linux kernel repository

U-Boot Bootloader

2021.01 (tag: v2021.01_08.06.00.002-phy3)

PHYTEC U-Boot bootloader repository

Yocto

3.1.23 Dunfell (tag: BSP-Yocto-AM62x-PD23.1.0)

PHYTEC Meta Layer repository

PHYTEC Meta Layer

This BSP release supports the phyCORE-AM62x development kit and will eventually support configuration options for more SOM variants to be used with the development kit carrier board (PBA-C-24). Here is a summary of the Yocto Machine Configuration support introduced in the PHYTEC Meta Layer for this release:

Yocto MACHINE Summary

Yocto MACHINE

Default Target Image

Linux Distro

Kit Part Number

Compatible Modules

U-Boot defconfig

Linux defconfig

Device Tree Files

phyboard-lyra-am62xx-2 (Default Kit)

phytec-qt5demo-image

PHYTEC Yogurt Reference Distribution

KPB-07124-001.A0

SOM:
PCM-071.A1
Carrier Board:
PBA-C-24.A1

u-boot.img:
phycore_am62x_a53_defconfig
SPL:
phycore_am62x_r5_defconfig

phytec_ti_defconfig
phytec_ti_platform.config

Default Device Tree:
k3-am625-phyboard-lyra-rdk.dtb
Overlays:
k3-am62-phyboard-lyra-m2-wifi.dtbo
k3-am62-phyboard-lyra-oldi-lcd185.dtbo
k3-am62-phyboard-lyra-vm016-mipi.dtbo
k3-am62-phyboard-lyra-x39-spi0.dtbo
k3-am62-phyboard-lyra-rpmsg.dtbo
k3-am62-phyboard-lyra-gpio-fan.dtbo

phyboard-lyra-am62xx-1 (Deprecated)

phytec-qt5demo-image

PHYTEC Yogurt Reference Distribution

KPB-07124-ALPHA.A0

SOM:
PCM-071.A0
Carrier Board:
PBA-C-24.A1

u-boot.img:
phycore_am62x_a53_defconfig
SPL:
phycore_am62x_r5_defconfig

phytec_ti_defconfig
phytec_ti_platform.config

Default Device Tree:
k3-am625-phyboard-lyra-deprecated-rev0-som.dtb
Overlays:
k3-am62-phyboard-lyra-m2-wifi.dtbo
k3-am62-phyboard-lyra-oldi-lcd185.dtbo
k3-am62-phyboard-lyra-vm016-mipi.dtbo
k3-am62-phyboard-lyra-x39-spi0.dtbo
k3-am62-phyboard-lyra-rpmsg.dtbo
k3-am62-phyboard-lyra-gpio-fan.dtbo

Note

There is no difference between “lyra” and “lyra-rdk” in the device tree files.

Part Number Summary

Hardware Summary

Hardware Description

Part Number

Configuration Details (DDR4 / eMMC / NOR / Ethernet PHY / Temperature)

PCB Version

phyCORE-AM62x SOM

PCM-071.A1

2GB / 16GB eMMC / OSPI NOR / Yes / Industrial

1573.1

phyCORE-AM62x SOM (ALPHA)

PCM-071.A0

2GB / 16GB eMMC / OSPI NOR / Yes / Industrial

1573.0

phyCORE-AM62x Carrier Board

PBA-C-24.A1

1576.1

PCM-071.A1 + PBA-C-24.A1 (Default Kit)

KPB-07124-001.A0

PCM-071.A0 + PBA-C-24.A1 (Deprecated)

KPB-07124-ALPHA.A1

Compatible Modules and Accessories

Compatible Add-Ons

Module Name

Part Number

PCB Version

Description

M.2 WIFI Module

PEB-WLBT-09

1589.0

TI WILINK WL18x7 based M.2 WIFI Module

OLDI Display Module

TBD

MIPI Camera Module

VM-016-COL-M-M12.A1

Linux Device Tree Summary

This is a summary of how the device tree source files (.dts) and the various include files (.dtsi) are broken down in the kernel. These files describe the hardware in a hierarchical and modular way to the kernel, connecting device drivers to the interfaces brought out by the carrier board.

Linux Device Tree Summary

Hardware Target

Device Tree File Descriptions

Filename

PCM-071.A1 + PBA-C-24.A1 (Default Kit)

Default Device Tree (includes the other .dtsi files below)

k3-am625-phyboard-lyra-rdk.dts

Processor .dtsi - This file adds general support for the AM625x Processor from Texas Instruments

k3-am625.dtsi

SOM .dtsi- This file adds support for your specific SOM’s population options

k3-am62-phycore-som.dtsi

WIFI Overlay

k3-am62-phyboard-lyra-m2-wifi.dts

OLDI Display Overlay

k3-am62-phyboard-lyra-oldi-lcd185.dts

MIPI Camera Overlay

k3-am62-phyboard-lyra-vm016-mipi.dts

SPI0 Overlay

k3-am62-phyboard-lyra-x39-spi0.dts

RPMSG Overlay

k3-am62-phyboard-lyra-rpmsg.dtbo

GPIO Fan Overlay

k3-am62-phyboard-lyra-gpio-fan.dtbo

If designing your own custom carrier board around the phyCORE-AM62x SOM, you will eventually define a custom device tree for your board that includes the .dtsi file for the SOM, which PHYTEC has provided for you. All the BSP changes custom for your application should eventually be consolidated into its own Meta Layer.

Supported Interfaces

The following table outlines the validated interfaces of the default phyCORE-AM62x development kit.

Note

This table only outlines the key features of the AM62x Processor PHYTEC has chosen to enable by default for the phyCORE-AM62x Development Kit, which serves as a basis for customization in production designs. Unnecessary interfaces can be disabled and additional interfaces can be enabled when deploying the SOM on a custom carrier board. Other features of the AM62x Processor may or may not be configurable depending on pin multiplexing conflicts, for more information review the phyCORE-AM62x schematic in tandem with the Processor Datasheet.

Supported Interfaces

Interface

Detail

Implemented

Tested

Status in Device tree

Notes

UART

uart0

Yes

Yes

Okay

Default serial console
- Connected to UART-to-USB FTDI IC

uart1

Yes

Okay

UART1 may be used by TIFS firmware

mcu_uart0

Yes

Disabled

I2C

i2c0

Yes

Yes

Okay

i2c1

Yes

Yes

Okay

mcu_i2c0

Yes

Disabled

Ethernet

eth0 (cpsw ethernet)

Yes

Yes

Okay

DP83867IRRGZ SOM PHY

eth1 (cpsw ethernet)

Yes

Yes

Okay

DP83867IRRGZ CB PHY

eMMC/SD/SDIO

mmc0

Yes

Yes

Okay

eMMC Flash Memory on the SOM

mmc1

Yes

Yes

Okay

SD Card Slot on Dev Kit Carrier Board

USB

usb0

Yes

Yes

Okay

Connected to USB C port X34

usb1

Yes

Yes

Okay

Connected to USB 2.0 HUB

CAN

mcan0

No

No

Known Issue: Nonfunctional

SPI

spi0

Yes

Enabled with spidev driver via Device Tree Overlay

OSPI

ospi0

Yes

Yes

Okay

NOR Serial Flash on SOM

OLDI LVDS Display

vout0

Yes

Yes

Enabled via Device Tree Overlay
Disables HDMI

HDMI

hdmi

Yes

Yes

Okay

Enabled by Default
Disabled when LVDS is Enabled

GPIO

User LEDs

Yes

Yes

Okay

User LEDs populated on SOM and Carrier Board

User Buttons

Yes

Yes

Okay

General Purpose

No

No

No

GPIOs can be configured “on the fly”, See Blink and GPIO Peripheral Interface Guides

Memory

SOM EEPROM

Yes

Okay

M24C32 on i2c0

Carrier Board EEPROM

Yes

Okay

M24C02 on i2c1

OSPI NOR Flash

Yes

Yes

Okay

MT35XU512ABA

RTC

SOM RTC

Yes

Yes

Okay

RV-3028-C7 on I2C0

Note

For technical support, please visit PHYTEC’s Support Portal!