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rpmsg: Introduce Qualcomm SMD backend

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This introduces a new rpmsg backend for the Qualcomm SMD system,
allowing communication with various remote processors found in Qualcomm
platforms. The implementation is based on, and intends to replace,
drivers/soc/qcom/smd.c with the necessary adaptions for fitting with the
rpmsg core.

Based on original work by Sricharan R <sricharan@codeaurora.org>

Cc: Sricharan R <sricharan@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Bjorn Andersson 2016-09-01 15:28:09 -07:00
parent 4b83c52a21
commit 53e2822e56
3 changed files with 1445 additions and 0 deletions
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10
drivers/rpmsg/Kconfig
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@ -4,6 +4,16 @@ menu "Rpmsg drivers"
config RPMSG
tristate
config RPMSG_QCOM_SMD
tristate "Qualcomm Shared Memory Driver (SMD)"
depends on QCOM_SMEM
depends on !QCOM_SMD
select RPMSG
help
Say y here to enable support for the Qualcomm Shared Memory Driver
providing communication channels to remote processors in Qualcomm
platforms.
config RPMSG_VIRTIO
tristate
select RPMSG

1
drivers/rpmsg/Makefile
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@ -1,2 +1,3 @@
obj-$(CONFIG_RPMSG) += rpmsg_core.o
obj-$(CONFIG_RPMSG_QCOM_SMD) += qcom_smd.o
obj-$(CONFIG_RPMSG_VIRTIO) += virtio_rpmsg_bus.o

1434
drivers/rpmsg/qcom_smd.c Normal file
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