Kernel-4.18.0-80.el8_bman-portals

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,<SoC>-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>;
    };
};