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author | Rob Rice <rob.rice@broadcom.com> | 2017-02-03 18:55:32 +0100 |
---|---|---|
committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-02-11 10:55:19 +0100 |
commit | 206dc4fc27be61732db4800f78c7c3ef74d6441e (patch) | |
tree | 44ae6853388198c1466d2cceed00969c419973ec /Documentation/devicetree/bindings/crypto/brcm,spu-crypto.txt | |
parent | crypto: cavium - Enable CPT options crypto for build (diff) | |
download | linux-206dc4fc27be61732db4800f78c7c3ef74d6441e.tar.xz linux-206dc4fc27be61732db4800f78c7c3ef74d6441e.zip |
crypto: brcm - DT documentation for Broadcom SPU hardware
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>
Diffstat (limited to 'Documentation/devicetree/bindings/crypto/brcm,spu-crypto.txt')
-rw-r--r-- | Documentation/devicetree/bindings/crypto/brcm,spu-crypto.txt | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/crypto/brcm,spu-crypto.txt b/Documentation/devicetree/bindings/crypto/brcm,spu-crypto.txt new file mode 100644 index 000000000000..29b6007568eb --- /dev/null +++ b/Documentation/devicetree/bindings/crypto/brcm,spu-crypto.txt @@ -0,0 +1,22 @@ +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>; + }; |