= Mediatek MT6253 =

The Mediatek MT6253 is a relatively modern baseband SoC made by Taiwan-based Mediatek.

It inherits a lot from the older series of MT622x SoCs, but provides 2 DSP cores, RF module and power management block on the chip.

The chip uses different addresses for periph. bus compared to it's predecessors.

= ROM Bootloader =

The chip contains ROM bootloader similar to [wiki:MT6253].

In order to keep the chip powered-on, PMIC registers need to be set-up properly.

DSP communication
Baseband communication is handled by DSP #1.

=== DSP initialization ===

• Power ON DSP
• Wait
• Install patch data
• Write some data via IDMA
• Wait for correct data in DSP1_SharedMem

Communication between ARM and DSP is carried via DSP1 Shared memory region and DSP1 shared registers. Initialization uses also IDMA.

Usage in mobile phones * http://www.aligator.cz/produkty/aligator-a800