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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright (C) 2023 Marvell International Ltd.
*
* Device tree for the AC5X RD Type 7 Com Express carrier board,
* This specific board in external mode (see below) only maintains
* a PCIe link with the COM Express CPU module, which does not
* require any special DTS definitions.
*
* AC5X RD can either work as you would expect, as a complete standalone
* box using the internal CPU, or you can move the switch on the back of
* the box to "external" mode, and connect via an external cable a kit
* which would allow it to use an external CPU COM Express module,
* mounted on top of an interposer kit.
*
* So in this case, once the switch is set to external mode as explained above,
* the AC5X RD becomes part of the carrier solution.
* This is a development/reference solution, not a full commercial solution,
* hence it was designed with the flexibility to be configured in different
* modes of operation.
*
* When the board boots in the external CPU mode, the internal CPU is disabled,
* and only the switch portion of the SOC acts as a PCIe end-point, Hence there
* is no need to describe this internal (disabled CPU) in the device tree.
*
* There is no CPU booting in this mode on the carrier,
* only on the COM Express CPU module.
*/
/ {
model = "Marvell Armada AC5X RD COM EXPRESS type 7 carrier board";
compatible = "marvell,rd-ac5x-carrier";
};
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