From mboxrd@z Thu Jan 1 00:00:00 1970 From: rob.rice@broadcom.com (Rob Rice) Date: Wed, 25 Jan 2017 11:44:47 -0500 Subject: [PATCH v3 1/3] crypto: brcm: DT documentation for Broadcom SPU hardware In-Reply-To: <1485362689-11294-1-git-send-email-rob.rice@broadcom.com> References: <1485362689-11294-1-git-send-email-rob.rice@broadcom.com> Message-ID: <1485362689-11294-2-git-send-email-rob.rice@broadcom.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Device tree documentation for Broadcom Secure Processing Unit (SPU) crypto hardware. Signed-off-by: Steve Lin Signed-off-by: Rob Rice --- .../devicetree/bindings/crypto/brcm,spu-crypto.txt | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 Documentation/devicetree/bindings/crypto/brcm,spu-crypto.txt 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 0000000..29b6007 --- /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 at 612d0000 { + compatible = "brcm,spum-crypto"; + reg = <0 0x612d0000 0 0x900>; + mboxes = <&pdc0 0>; + }; -- 2.1.0