dt-bindings: arm: ti: Add AM62D2 SoC and Boards

The AM62D2 SoC, part of the K3 architecture, is built for high-performance
DSP tasks in automotive audio, pro audio, radar, sonar, and medical
imaging. It features up to four Cortex-A53 cores (1.4GHz), two Cortex-R5F
cores, and a C7x DSP with 2 TOPS MMA. Key interfaces include multi-channel
McASP audio, TSN-capable Gigabit Ethernet, and a range of peripherals
(UART, SPI, I2C, CAN, USB, eMMC/SD, OSPI, CSI). It supports LPDDR4/DDR4,
secure boot with hardware security, and low-power modes with
CAN/GPIO/UART wakeup.

This SoC is of part K3 AM62x family, which includes the AM62A and AM62P
variants. A key distinction is that the AM62D does not include multimedia
components such as the video encoder/decoder, MJPEG encoder, Vision
Processing Accelerator (VPAC) for image signal processing, or the display
subsystem. Additionally, the AM62D has a different pin configuration
compared to the AM62A, which impacts embedded software development.

This adds dt bindings for TI's AM62D2 family of devices.

More details about the SoCs can be found in the Technical Reference Manual:
https://www.ti.com/lit/pdf/sprujd4

Signed-off-by: Paresh Bhagat <p-bhagat@ti.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250708085839.1498505-3-p-bhagat@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

Documentation/devicetree/bindings/arm/ti/k3.yaml

@@ -25,6 +25,12 @@ properties:
               - ti,am62a7-sk
           - const: ti,am62a7
 
+      - description: K3 AM62D2 SoC and Boards
+        items:
+          - enum:
+              - ti,am62d2-evm
+          - const: ti,am62d2
+
       - description: K3 AM62A7 SoC PHYTEC phyBOARD-Lyra
         items:
           - const: phytec,am62a7-phyboard-lyra-rdk