bman-portals.txt

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    1 QorIQ DPAA Buffer Manager Portals Device Tree Binding
    2 
    3 Copyright (C) 2008 - 2014 Freescale Semiconductor Inc.
    4 
    5 CONTENTS
    6 
    7         - BMan Portal
    8         - Example
    9 
   10 BMan Portal Node
   11 
   12 Portals are memory mapped interfaces to BMan that allow low-latency, lock-less
   13 interaction by software running on processor cores, accelerators and network
   14 interfaces with the BMan
   15 
   16 PROPERTIES
   17 
   18 - compatible
   19         Usage:          Required
   20         Value type:     <stringlist>
   21         Definition:     Must include "fsl,bman-portal-<hardware revision>"
   22                         May include "fsl,<SoC>-bman-portal" or "fsl,bman-portal"
   23 
   24 - reg
   25         Usage:          Required
   26         Value type:     <prop-encoded-array>
   27         Definition:     Two regions. The first is the cache-enabled region of
   28                         the portal. The second is the cache-inhibited region of
   29                         the portal
   30 
   31 - interrupts
   32         Usage:          Required
   33         Value type:     <prop-encoded-array>
   34         Definition:     Standard property
   35 
   36 EXAMPLE
   37 
   38 The example below shows a (P4080) BMan portals container/bus node with two portals
   39 
   40         bman-portals@ff4000000 {
   41                 #address-cells = <1>;
   42                 #size-cells = <1>;
   43                 compatible = "simple-bus";
   44                 ranges = <0 0xf 0xf4000000 0x200000>;
   45 
   46                 bman-portal@0 {
   47                         compatible = "fsl,bman-portal-1.0.0", "fsl,bman-portal";
   48                         reg = <0x0 0x4000>, <0x100000 0x1000>;
   49                         interrupts = <105 2 0 0>;
   50                 };
   51                 bman-portal@4000 {
   52                         compatible = "fsl,bman-portal-1.0.0", "fsl,bman-portal";
   53                         reg = <0x4000 0x4000>, <0x101000 0x1000>;
   54                         interrupts = <107 2 0 0>;
   55                 };
   56         };

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sys/contrib/device-tree/Bindings/soc/fsl/bman-portals.txt