0001 The Broadcom Secure Processing Unit (SPU) hardware supports symmetric
0002 cryptographic offload for Broadcom SoCs. A SoC may have multiple SPU hardware
0003 blocks.
0004
0005 Required properties:
0006 - compatible: Should be one of the following:
0007 brcm,spum-crypto - for devices with SPU-M hardware
0008 brcm,spu2-crypto - for devices with SPU2 hardware
0009 brcm,spu2-v2-crypto - for devices with enhanced SPU2 hardware features like SHA3
0010 and Rabin Fingerprint support
0011 brcm,spum-nsp-crypto - for the Northstar Plus variant of the SPU-M hardware
0012
0013 - reg: Should contain SPU registers location and length.
0014 - mboxes: The mailbox channel to be used to communicate with the SPU.
0015 Mailbox channels correspond to DMA rings on the device.
0016
0017 Example:
0018 crypto@612d0000 {
0019 compatible = "brcm,spum-crypto";
0020 reg = <0 0x612d0000 0 0x900>;
0021 mboxes = <&pdc0 0>;
0022 };
