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Commit 5bb47425 authored by Kineret Berger's avatar Kineret Berger Committed by Gerrit - the friendly Code Review server
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soc: qcom: add secure processor communication (spcom) driver 



This driver supports communication with secure processor subsystem
over glink transport layer.
The communication is based on using shared memory and interrupts.
This driver exposes interface to both kernel and user space.

Change-Id: I21ad3bac5d1b0cc7a4da616040c81f117c655435
Signed-off-by: default avatarKineret Berger <kberger@codeaurora.org>
parent 96e8f54f

Documentation/devicetree/bindings/arm/msm/spcom.txt

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Qualcomm Technologies, Inc. Secure Proccessor Communication (spcom)



Required properties:

-compatible : should be "qcom,spcom"

-qcom,spcom-ch-names: predefined channels name string



Example:

    qcom,spcom {

            compatible = "qcom,spcom";

            qcom,spcom-ch-names = "sp_kernel" , "sp_ssr";

    };

drivers/soc/qcom/Kconfig

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@@ -302,6 +302,19 @@ config MSM_GLINK_SPI_XPRT 
	  allows for G-Link communication with remote subsystems that are

	  external to the System-on-Chip.



config MSM_SPCOM

	depends on MSM_GLINK

	bool "Secure Processor Communication over GLINK"

	help

	  spcom driver allows loading Secure Processor Applications and

	  sending messages to Secure Processor Applications.

	  spcom provides interface to both user space app and kernel driver.

	  It is using glink as the transport layer, which provides multiple

	  logical channels over single physical channel.

	  The physical layer is based on shared memory and interrupts.

	  spcom provides clients/server API, although currently only one client

	  or server is allowed per logical channel.



config TRACER_PKT

	bool "Tracer Packet"

	help

drivers/soc/qcom/Makefile

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@@ -29,6 +29,7 @@ obj-$(CONFIG_MSM_GLINK) += glink.o glink_debugfs.o glink_ssr.o 
obj-$(CONFIG_MSM_GLINK_LOOPBACK_SERVER) += glink_loopback_server.o

obj-$(CONFIG_MSM_GLINK_SMEM_NATIVE_XPRT) += glink_smem_native_xprt.o

obj-$(CONFIG_MSM_GLINK_SPI_XPRT) += glink_spi_xprt.o

obj-$(CONFIG_MSM_SPCOM) += spcom.o

obj-$(CONFIG_TRACER_PKT) += tracer_pkt.o

obj-$(CONFIG_QCOM_BUS_SCALING) += msm_bus/

obj-$(CONFIG_QTI_RPMH_API) += rpmh.o