From: Sricharan Ramabadhran <quic_srichara@xxxxxxxxxxx> This binding describes the component responsible for communication between the TME-L server based subsystems (Q6) and the TME-L client (APPSS/BTSS/AUDIOSS), used for security services like secure image authentication, enable/disable efuses, crypto services. Each client in the SoC has its own block of message RAM and IRQ for communication with the TME-L SS. The protocol used to communicate in the message RAM is known as Qualcomm Messaging Protocol (QMP). Signed-off-by: Sricharan Ramabadhran <quic_srichara@xxxxxxxxxxx> --- .../bindings/mailbox/qcom,tmelite-qmp.yaml | 70 +++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 Documentation/devicetree/bindings/mailbox/qcom,tmelite-qmp.yaml diff --git a/Documentation/devicetree/bindings/mailbox/qcom,tmelite-qmp.yaml b/Documentation/devicetree/bindings/mailbox/qcom,tmelite-qmp.yaml new file mode 100644 index 000000000000..1f2b3e02b894 --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/qcom,tmelite-qmp.yaml @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mailbox/qcom,tmelite-qmp.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm TMELITE IPCC channel + +maintainers: + - Sricharan Ramabadhran <quic_srichara@xxxxxxxxxxx> + +description: + This binding describes the component responsible for communication + between the TME-L server based subsystems (Q6) and the TME-L client + (APPSS/BTSS/AUDIOSS), used for security services like secure image + authentication, enable/disable efuses, crypto services. Each client + in the SoC has its own block of message RAM and IRQ for communication + with the TME-L SS. The protocol used to communicate in the message RAM + is known as Qualcomm Messaging Protocol (QMP). + +properties: + compatible: + items: + - enum: + - qcom,ipq5424-tmelite-qmp + - const: qcom,tmelite-qmp + + reg: + maxItems: 1 + description: + The base address and size of the message RAM for this client's + communication with the TMELITE core + + interrupts: + maxItems: 1 + description: + Should specify the TMELITE message IRQ for this client + + mboxes: + maxItems: 1 + description: + Reference to the mailbox representing the outgoing doorbell in APCS for + this client, as described in mailbox/mailbox.txt + + "#mbox-cells": + const: 2 + description: + The first cell is the client-id, and the second cell is the signal-id. + +required: + - compatible + - reg + - interrupts + - mboxes + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + + tmel_qmp: qmp@32090000 { + compatible = "qcom,ipq5424-tmelite-qmp", "qcom,tmelite-qmp"; + reg = <0x32090000 0x2000>; + interrupts = <GIC_SPI 126 IRQ_TYPE_EDGE_RISING>; + mboxes = <&apcs_glb 20>; + #mbox-cells = <2>; + }; + +... -- 2.34.1
