From 5f3af4008bfcb388a3193fd871e1b2e94ba4b09c Mon Sep 17 00:00:00 2001 From: Emil Medve Date: Wed, 5 Nov 2014 09:18:52 -0600 Subject: [PATCH] dt/bindings: Introduce the FSL QorIQ DPAA BMan portal(s) Portals are memory mapped interfaces to BMan that allow low-latency, lock-less interaction by software running on processor cores, accelerators and network interfaces with the BMan Signed-off-by: Emil Medve Change-Id: I6d245ffc14ba3d0e91d403ac7c3b91b75a9e6a95 Signed-off-by: Scott Wood --- .../bindings/soc/fsl/bman-portals.txt | 56 +++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/fsl/bman-portals.txt diff --git a/Documentation/devicetree/bindings/soc/fsl/bman-portals.txt b/Documentation/devicetree/bindings/soc/fsl/bman-portals.txt new file mode 100644 index 000000000000..2a00e14e11e0 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/fsl/bman-portals.txt @@ -0,0 +1,56 @@ +QorIQ DPAA Buffer Manager Portals Device Tree Binding + +Copyright (C) 2008 - 2014 Freescale Semiconductor Inc. + +CONTENTS + + - BMan Portal + - Example + +BMan Portal Node + +Portals are memory mapped interfaces to BMan that allow low-latency, lock-less +interaction by software running on processor cores, accelerators and network +interfaces with the BMan + +PROPERTIES + +- compatible + Usage: Required + Value type: + Definition: Must include "fsl,bman-portal-" + May include "fsl,-bman-portal" or "fsl,bman-portal" + +- reg + Usage: Required + Value type: + Definition: Two regions. The first is the cache-enabled region of + the portal. The second is the cache-inhibited region of + the portal + +- interrupts + Usage: Required + Value type: + Definition: Standard property + +EXAMPLE + +The example below shows a (P4080) BMan portals container/bus node with two portals + + bman-portals@ff4000000 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "simple-bus"; + ranges = <0 0xf 0xf4000000 0x200000>; + + bman-portal@0 { + compatible = "fsl,bman-portal-1.0.0", "fsl,bman-portal"; + reg = <0x0 0x4000>, <0x100000 0x1000>; + interrupts = <105 2 0 0>; + }; + bman-portal@4000 { + compatible = "fsl,bman-portal-1.0.0", "fsl,bman-portal"; + reg = <0x4000 0x4000>, <0x101000 0x1000>; + interrupts = <107 2 0 0>; + }; + }; -- 2.20.1