remoteproc: Introduce K3 remoteproc driver for R5F subsystem

SoCs with K3 architecture have an integrated Arm Cortex-R5F subsystem
that is comprised of dual-core Arm Cortex-R5F processor cores. This R5
subsytem can be configured at boot time to be either run in a LockStep
mode or in an Asymmetric Multi Processing (AMP) fashion in Split-mode.
This subsystem has each Tightly-Coupled Memory (TCM) internal memories
for each core split between two banks - TCMA and TCMB.

Add a remoteproc driver to support this subsystem to be able to load
and boot the R5 cores primarily in LockStep mode or split mode.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index f54a245..c2d59ba 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -52,6 +52,16 @@
 	  on various TI K3 family of SoCs through the remote processor
 	  framework.
 
+config REMOTEPROC_TI_K3_R5F
+	bool "TI K3 R5F remoteproc support"
+	select REMOTEPROC
+	depends on ARCH_K3
+	depends on TI_SCI_PROTOCOL
+	help
+	  Say y here to support TI's R5F remote processor subsystems
+	  on various TI K3 family of SoCs through the remote processor
+	  framework.
+
 config REMOTEPROC_TI_POWER
 	bool "Support for TI Power processor"
 	select REMOTEPROC