3 Commits

Author	SHA1	Message	Date
Sudeep Holla	d0c0bce831	firmware: arm_ffa: Setup in-kernel users of FFA partitions ... Parse the FFA nodes from the device-tree and register all the partitions whose services will be used in the kernel. In order to also enable in-kernel users of FFA interface, let us add simple set of operations for such devices. The in-kernel users are registered without the character device interface. Link: https://lore.kernel.org/r/20210521151033.181846-5-sudeep.holla@arm.com Tested-by: Jens Wiklander <jens.wiklander@linaro.org> Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>	2021-05-26 22:38:43 +01:00
Sudeep Holla	714be77e97	firmware: arm_ffa: Add support for SMCCC as transport to FFA driver ... There are requests to keep the transport separate in order to allow other possible transports like virtio. So let us keep the SMCCC transport specific routines abstracted. It is kept simple for now. Once we add another transport, we can develop better abstraction. Link: https://lore.kernel.org/r/20210521151033.181846-4-sudeep.holla@arm.com Tested-by: Jens Wiklander <jens.wiklander@linaro.org> Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>	2021-05-26 22:36:46 +01:00
Sudeep Holla	3bbfe98710	firmware: arm_ffa: Add initial Arm FFA driver support ... This just add a basic driver that sets up the transport(e.g. SMCCC), checks the FFA version implemented, get the partition ID for self and sets up the Tx/Rx buffers for communication. Link: https://lore.kernel.org/r/20210521151033.181846-3-sudeep.holla@arm.com Tested-by: Jens Wiklander <jens.wiklander@linaro.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>	2021-05-26 22:36:46 +01:00