Release Notes unified i.MX 91/93 Linux BSP
==========================================

BSP-Yocto-NXP-i.MX93-PD24.1.1          2024-05-07
=================================================

- Linux NXP Vendor Kernel v6.1.55_2.2.0-phy3 (based on NXP tag lf-6.1.55_2.2.0)
- U-boot 2023.04_2.2.0-phy3 (based on NXP tag lf-6.1.55_2.2.0)
- Yocto 4.2.3 (mickledore)
- Qt 6.5.0
- RAUC 1.10.1

Tested Yocto Images:
--------------------
- phytec-headless-image
  * phyboard-nash-imx93-1
  * phyboard-segin-imx93-2

- phytec-qt6demo-image
  * phyboard-nash-imx93-1
  * phyboard-segin-imx93-2

Build Environment:
------------------
- Ubuntu 22.04 64-Bit

Features:
---------
- Added new machine phyboard-nash-imx93-1 supporting new phyBOARD-Nash-i.MX 93
  board. The phyBOARD-Nash supports the 1.8V VDD_IO phyCORE-i.MX 93 as well as
  multiple features of the i.MX93 processor which were technically not possible
  on the phyBOARD-Segin due to pin compatibility.

  Supported phyBOARD-Nash features:
  * 2 GB LPDDR4X RAM
  * 2x Debug UART (1x A55 core, 1x M33 core)
  * 2x Ethernet (100 Mbit on SOM, 1 Gbit on carrier-board)
  * eMMC (HS400ES mode)
  * SD-Card
  * CAN
  * RS232/RS485
  * I2C
  * EEPROM
  * RTC
  * Power-key
  * ADC
  * PWM
  * USB (host and OTG mode)
  * User LED (heartbeat)
  * TPM 2.0 chip (via SPI)

- Added support for the PEB-AV-10 Audio/Video adapter on phyBOARD-Nash-i.MX 93.
  Currently supports LVDS 10" touch-screen display panel (AC200)
- Added 3rd trip point for frequency scaling

Issues fixed:
-------------
- Applied workaround for i.MX 93 silicon errata ERR052021
- Fixed SD-card pinctrl drive-strength settings for 50/100/200 MHz modes
- Yocto SDK now contains all the tools required to build Qt6 applications
- Reduced power consumption during suspend by disabling WoL (Wake-On-Lan) on
  SOM Ethernet PHY

Known Issues:
-------------
- In rare occasions a system freeze can be observed, which results in a
  watchdog triggered reboot, during iperf3 stresstest in a "client mode" of
  ETH2 (PHY on module). When iperf3 stresstest is set to "server mode" this
  effect can not be observed anymore.
- Qt packages qt3d and qtdatavis3d cannot be build for the SDK and were
  therefore removed from the i.MX 93 SDK
- On phyBOARD-Nash-i.MX 93 carrier-board (rev 1616.0), Audio with PEB-AV-10 A/V
  adapter is broken due to HW bug
- On phyBOARD-Nash-i.MX 93 carrier-board (rev 1616.0), Backlight with PEB-AV-10
  A/V adapter is ON by default after power-reset due to HW bug
- On phyBOARD-Nash-i.MX 93 carrier-board (rev 1616.0), RS232 hardware flow
  control is broken due to HW bug
- On phyBOARD-Nash-i.MX 93 carrier-board (rev 1616.0), RS485 is broken due to
  HW bug
- On phyBOARD-Nash-i.MX 93 carrier-board (rev 1616.0), jumper J13 is
  non-functional due to HW bug
- On phyBOARD-Nash-i.MX 93 carrier-board (rev 1616.0), PWM fan on connector X48
  is not currently supported in our BSP, however PWM signal (via TPM unit) can
  be enabled for testing (Note that changing TPM frequency will affect the PWM
  signal of the display backlight of PEB-AV-10)
- BSP provided M33 core demos from NXP are not working on A1 revision of i.MX93
  due to ROM differences between A0 and A1 silicon revisions.