mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 00:48:50 +00:00
206dc4fc27
Device tree documentation for Broadcom Secure Processing Unit (SPU) crypto hardware. Signed-off-by: Steve Lin <steven.lin1@broadcom.com> Signed-off-by: Rob Rice <rob.rice@broadcom.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
22 lines
830 B
Text
22 lines
830 B
Text
The Broadcom Secure Processing Unit (SPU) hardware supports symmetric
|
|
cryptographic offload for Broadcom SoCs. A SoC may have multiple SPU hardware
|
|
blocks.
|
|
|
|
Required properties:
|
|
- compatible: Should be one of the following:
|
|
brcm,spum-crypto - for devices with SPU-M hardware
|
|
brcm,spu2-crypto - for devices with SPU2 hardware
|
|
brcm,spu2-v2-crypto - for devices with enhanced SPU2 hardware features like SHA3
|
|
and Rabin Fingerprint support
|
|
brcm,spum-nsp-crypto - for the Northstar Plus variant of the SPU-M hardware
|
|
|
|
- reg: Should contain SPU registers location and length.
|
|
- mboxes: The mailbox channel to be used to communicate with the SPU.
|
|
Mailbox channels correspond to DMA rings on the device.
|
|
|
|
Example:
|
|
crypto@612d0000 {
|
|
compatible = "brcm,spum-crypto";
|
|
reg = <0 0x612d0000 0 0x900>;
|
|
mboxes = <&pdc0 0>;
|
|
};
|