devicetree_regions.h File Reference

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Macros
#define	LINKER_DT_NODE_REGION_NAME(node_id)    DT_PROP_OR(node_id, zephyr_memory_region, DT_NODE_PATH(node_id))
	Get the linker memory-region name. More...
#define	LINKER_DT_REGION_FROM_NODE(node_id, attr)
	Generate a linker memory region from a devicetree node. More...

Macro Definition Documentation

LINKER_DT_NODE_REGION_NAME

#define LINKER_DT_NODE_REGION_NAME

(

node_id

)

DT_PROP_OR(node_id, zephyr_memory_region, DT_NODE_PATH(node_id))

Get the linker memory-region name.

This attempts to use the zephyr,memory-region property, falling back to the node path if it doesn't exist.

Example devicetree fragment:

/ {
        soc {
                sram1: memory@2000000 {
                    zephyr,memory-region = "MY_NAME";
                };
                sram2: memory@2001000 { ... };
        };
};

Example usage:

LINKER_DT_NODE_REGION_NAME(DT_NODELABEL(sram1)) // "MY_NAME" LINKER_DT_NODE_REGION_NAME(DT_NODELABEL(sram2)) // "/soc/memory@2001000"

Parameters

node_id

node identifier

Returns

the name of the memory memory region the node will generate

LINKER_DT_REGION_FROM_NODE

#define LINKER_DT_REGION_FROM_NODE	(		node_id,
			attr
	)

Value:

        COND_CODE_1(DT_NODE_HAS_STATUS(node_id, okay), \
                    (_REGION_DECLARE(node_id, attr)),  \
                    ())

Generate a linker memory region from a devicetree node.

Parameters

node_id	devicetree node identifier with a <reg> property defining region location and size
attr	region attributes to use (rx, rw, ...)