The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/crypto/brcm,spu-crypto.txt

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    1 The Broadcom Secure Processing Unit (SPU) hardware supports symmetric
    2 cryptographic offload for Broadcom SoCs. A SoC may have multiple SPU hardware
    3 blocks.
    4 
    5 Required properties:
    6 - compatible: Should be one of the following:
    7   brcm,spum-crypto - for devices with SPU-M hardware
    8   brcm,spu2-crypto - for devices with SPU2 hardware
    9   brcm,spu2-v2-crypto - for devices with enhanced SPU2 hardware features like SHA3
   10   and Rabin Fingerprint support
   11   brcm,spum-nsp-crypto - for the Northstar Plus variant of the SPU-M hardware
   12 
   13 - reg: Should contain SPU registers location and length.
   14 - mboxes: The mailbox channel to be used to communicate with the SPU.
   15   Mailbox channels correspond to DMA rings on the device.
   16 
   17 Example:
   18         crypto@612d0000 {
   19                 compatible = "brcm,spum-crypto";
   20                 reg = <0 0x612d0000 0 0x900>;
   21                 mboxes = <&pdc0 0>;
   22         };

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