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-======================================================================
-Device tree bindings for Aspeed AST2400/AST2500 PCI-to-AHB Bridge Control Driver
-======================================================================
-
-The bridge is available on platforms with the VGA enabled on the Aspeed device.
-In this case, the host has access to a 64KiB window into all of the BMC's
-memory. The BMC can disable this bridge. If the bridge is enabled, the host
-has read access to all the regions of memory, however the host only has read
-and write access depending on a register controlled by the BMC.
-
-Required properties:
-===================
-
- - compatible: must be one of:
- - "aspeed,ast2400-p2a-ctrl"
- - "aspeed,ast2500-p2a-ctrl"
-
-Optional properties:
-===================
-
-- reg: A hint for the memory regions associated with the P2A controller
-- memory-region: A phandle to a reserved_memory region to be used for the PCI
- to AHB mapping
-
-The p2a-control node should be the child of a syscon node with the required
-property:
-
-- compatible : Should be one of the following:
- "aspeed,ast2400-scu", "syscon", "simple-mfd"
- "aspeed,ast2500-scu", "syscon", "simple-mfd"
-
-Example
-===================
-
-g4 Example
-----------
-
-syscon: scu@1e6e2000 {
- compatible = "aspeed,ast2400-scu", "syscon", "simple-mfd";
- reg = <0x1e6e2000 0x1a8>;
-
- p2a: p2a-control {
- compatible = "aspeed,ast2400-p2a-ctrl";
- memory-region = <&reserved_memory>;
- };
-};