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-rw-r--r--kernel/Documentation/devicetree/bindings/misc/sram.txt16
1 files changed, 16 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/misc/sram.txt b/kernel/Documentation/devicetree/bindings/misc/sram.txt
index 36cbe5aea..42ee9438b 100644
--- a/kernel/Documentation/devicetree/bindings/misc/sram.txt
+++ b/kernel/Documentation/devicetree/bindings/misc/sram.txt
@@ -33,6 +33,12 @@ Optional properties in the area nodes:
- compatible : standard definition, should contain a vendor specific string
in the form <vendor>,[<device>-]<usage>
+- pool : indicates that the particular reserved SRAM area is addressable
+ and in use by another device or devices
+- export : indicates that the reserved SRAM area may be accessed outside
+ of the kernel, e.g. by bootloader or userspace
+- label : the name for the reserved partition, if omitted, the label
+ is taken from the node name excluding the unit address.
Example:
@@ -48,4 +54,14 @@ sram: sram@5c000000 {
compatible = "socvendor,smp-sram";
reg = <0x100 0x50>;
};
+
+ device-sram@1000 {
+ reg = <0x1000 0x1000>;
+ pool;
+ };
+
+ exported@20000 {
+ reg = <0x20000 0x20000>;
+ export;
+ };
};