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board: iot2050: Support new IOT2050-SM variant

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Main differences between the new variant and Advanced PG2:

1. Arduino interface is removed. Instead, an new ASIC is added for
   communicating with PLC 1200 signal modules.
2. USB 3.0 type A connector is removed, only USB 2.0 type A connector is
   available.
3. DP interface is tailored down. Instead, to communicate with the
   PLC 1200 signal modules, a USB 3.0 type B connector is added but the
   signal is not USB.
4. DDR size is increased to 4 GB.
5. Two sensors are added, one tilt sensor and one light sensor.

Signed-off-by: Baocheng Su <baocheng.su@siemens.com>
[Jan: rebased over OF_UPSTREAM]
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
This commit is contained in:
Baocheng Su
2024-10-22 08:04:27 +02:00
committed by Tom Rini
parent 5341318165
commit 3acd534b73
5 changed files with 23 additions and 4 deletions
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4
doc/board/siemens/iot2050.rst
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@@ -8,7 +8,9 @@ The SIMATIC IOT2050 is an open industrial IoT gateway that is using the TI
AM6528 GP (Basic variant) or the AM6548 HS (Advanced variant). The Advanced
variant is prepared for secure boot. M.2 Variant also uses the AM6548 HS.
Instead of a MiniPCI connector, it comes with two M.2 connectors and can
support 5G/WIFI/BT applications or connect an SSD.
support 5G/WIFI/BT applications or connect an SSD. Compared with the AM6548
Advanced variant, SM variant removes the Arduino interface, and adds a new
ASIC for communicating with the PLC 1200 signal modules.
The IOT2050 starts only from OSPI. It loads a Siemens-provided bootloader
called SE-Boot for the MCU domain (R5F cores), then hands over to ATF and