Thread (16 messages) 16 messages, 2 authors, 2017-05-01
STALE3327d
Revisions (2)
  1. v2 current
  2. v3 [diff vs current]

[PATCH v2 03/11] dt-bindings: soc/fsl: Update reserved memory binding for QBMan

From: Roy Pledge <roy.pledge@nxp.com>
Date: 2017-04-19 20:51:39
Also in: linux-arm-kernel, lkml
Subsystem: freescale soc drivers, open firmware and flattened device tree bindings, the rest · Maintainers: Christophe Leroy, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds

Updates the QMan and BMan device tree bindings for reserved memory
nodes. This makes the reserved memory allocation compatiable with
the shared-dma-pool usage.

Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
---
 Documentation/devicetree/bindings/soc/fsl/bman.txt | 11 ++++++-----
 Documentation/devicetree/bindings/soc/fsl/qman.txt | 18 +++++++++++-------
 2 files changed, 17 insertions(+), 12 deletions(-)
diff --git a/Documentation/devicetree/bindings/soc/fsl/bman.txt b/Documentation/devicetree/bindings/soc/fsl/bman.txt
index 47ac834..3cd1e2c 100644
--- a/Documentation/devicetree/bindings/soc/fsl/bman.txt
+++ b/Documentation/devicetree/bindings/soc/fsl/bman.txt
@@ -65,8 +65,8 @@ to the respective BMan instance
 BMan Private Memory Node
 
 BMan requires a contiguous range of physical memory used for the backing store
-for BMan Free Buffer Proxy Records (FBPR). This memory is reserved/allocated as a
-node under the /reserved-memory node
+for BMan Free Buffer Proxy Records (FBPR). This memory is reserved/allocated as
+a node under the /reserved-memory node.
 
 The BMan FBPR memory node must be named "bman-fbpr"
 
@@ -75,7 +75,8 @@ PROPERTIES
 - compatible
 	Usage:		required
 	Value type:	<stringlist>
-	Definition:	Must inclide "fsl,bman-fbpr"
+	Definition:	PPC platforms: Must include "fsl,bman-fbpr"
+			ARM platforms: Must include "shared-dma-pool"
 
 The following constraints are relevant to the FBPR private memory:
 	- The size must be 2^(size + 1), with size = 11..33. That is 4 KiB to
@@ -100,10 +101,10 @@ The example below shows a BMan FBPR dynamic allocation memory node
 		ranges;
 
 		bman_fbpr: bman-fbpr {
-			compatible = "fsl,bman-fbpr";
-			alloc-ranges = <0 0 0x10 0>;
+			compatible = "shared-mem-pool";
 			size = <0 0x1000000>;
 			alignment = <0 0x1000000>;
+			no-map;
 		};
 	};
 
diff --git a/Documentation/devicetree/bindings/soc/fsl/qman.txt b/Documentation/devicetree/bindings/soc/fsl/qman.txt
index 556ebb8..8cd20c0 100644
--- a/Documentation/devicetree/bindings/soc/fsl/qman.txt
+++ b/Documentation/devicetree/bindings/soc/fsl/qman.txt
@@ -74,7 +74,9 @@ QMan Private Memory Nodes
 
 QMan requires two contiguous range of physical memory used for the backing store
 for QMan Frame Queue Descriptor (FQD) and Packed Frame Descriptor Record (PFDR).
-This memory is reserved/allocated as a nodes under the /reserved-memory node
+This memory is reserved/allocated as a node under the /reserved-memory node.
+
+For additional details about reserved memory regions see reserved-memory.txt
 
 The QMan FQD memory node must be named "qman-fqd"
 
@@ -83,7 +85,8 @@ PROPERTIES
 - compatible
 	Usage:		required
 	Value type:	<stringlist>
-	Definition:	Must inclide "fsl,qman-fqd"
+	Definition:	PPC platforms: Must include "fsl,qman-fqd"
+			ARM platforms: Must include "shared-dma-pool"
 
 The QMan PFDR memory node must be named "qman-pfdr"
 
@@ -92,7 +95,8 @@ PROPERTIES
 - compatible
 	Usage:		required
 	Value type:	<stringlist>
-	Definition:	Must inclide "fsl,qman-pfdr"
+	Definition:	PPC platforms: Must include "fsl,qman-pfdr"
+			ARM platforms: Must include "shared-dma-pool"
 
 The following constraints are relevant to the FQD and PFDR private memory:
 	- The size must be 2^(size + 1), with size = 11..29. That is 4 KiB to
@@ -117,16 +121,16 @@ The example below shows a QMan FQD and a PFDR dynamic allocation memory nodes
 		ranges;
 
 		qman_fqd: qman-fqd {
-			compatible = "fsl,qman-fqd";
-			alloc-ranges = <0 0 0x10 0>;
+			compatible = "shared-dma-pool";
 			size = <0 0x400000>;
 			alignment = <0 0x400000>;
+			no-map;
 		};
 		qman_pfdr: qman-pfdr {
-			compatible = "fsl,qman-pfdr";
-			alloc-ranges = <0 0 0x10 0>;
+			compatible = "shared-dma-pool";
 			size = <0 0x2000000>;
 			alignment = <0 0x2000000>;
+			no-map;
 		};
 	};
 
-- 
2.7.4
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