feat(ti): add mmu regions for am62l soc

Update the k3low bl31 platform setup to map required device regions
(USART, GIC, GTC, MMR, and mailbox) in the MMU. This ensures that all
necessary hardware b

feat(ti): add mmu regions for am62l soc

Update the k3low bl31 platform setup to map required device regions
(USART, GIC, GTC, MMR, and mailbox) in the MMU. This ensures that all
necessary hardware blocks are accessible to the A53 cores on the
AM62L SoC.
Use 4K aligned address sizes wherever applicable, and update the
file header comment from "K3 SOC specific bl31_setup" to "k3low SoC
specific bl31_setup" to accurately represent the platform specific
nature of this file.
As part of the effort, rename WKUP_CTRL_MMR0_DEVICE_MANAGEMENT_BASE
to WKUP_CTRL_MMR0_BASE to make name shorter.

Change-Id: I58209bc9c780db3e452b09c2c939bb0c47a63ed1
Signed-off-by: Dhruva Gole <d-gole@ti.com>

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fix(ti): specify allowable rcv_addr in mailbox

The ti_sci_transport_recv function had an overly restrictive check
where we enforced the rcv_addr to be always at the start of the
RX_START region in s

fix(ti): specify allowable rcv_addr in mailbox

The ti_sci_transport_recv function had an overly restrictive check
where we enforced the rcv_addr to be always at the start of the
RX_START region in shared memory. This started failing unnecessarily
when messages started being received at a location other than the
beginning.
However, the sender might send the messages at any location within
the share memory region if it does some sort of buffer management.
In such a case, TFA needs to just make sure the message being read
is well within the allocated shared memory region. Not necessarily
at the start.

Fixes: 9347ff4561e445d4 ("feat(ti): add support for TI mailbox driver")
Change-Id: I32cf0f5e4b9fedf49e40ace0bef06b7fc4c016f6
Signed-off-by: Dhruva Gole <d-gole@ti.com>

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feat(ti): introduce basic support for the AM62L

The AM62L is a lite, low power and performance optimized family of
application processors that are built for Linux application development.

Some high

feat(ti): introduce basic support for the AM62L

The AM62L is a lite, low power and performance optimized family of
application processors that are built for Linux application development.

Some highlights of AM62L SoC are:
- Single to Dual 64-bit Arm® Cortex®-A53 microprocessor subsystem
- 16-bit DDR Subsystem that supports LPDDR4, DDR4 memory types.
- Multiple low power modes support, ex: Deep sleep and RTC+DDR
- Mailbox transport layer for TI SCI

For more information check out our Technical Reference Manual (TRM)
which is loacted here:

https://www.ti.com/lit/pdf/sprujb4

Change-Id: I9d7c707b5b220c5ec13bd2de67f872b3da3c308a
Signed-off-by: Dhruva Gole <d-gole@ti.com>

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