mailbox: Add support for ST's Mailbox IP

ST's platforms currently support a maximum of 5 Mailboxes, one for each of the supported co-processors situated on the platform. Each Mailbox is divided up into 4 instances which consist of 32 channels. Messages are passed between the application and co-processors using shared memory areas. It is the Client's responsibility to manage these areas. Signed-off-by: Lee Jones <[email protected]> Signed-off-by: Jassi Brar <[email protected]>
elodin-sys · Oct 17, 2015 · 9ef4546 · 9ef4546
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diff --git a/drivers/mailbox/Kconfig b/drivers/mailbox/Kconfig
@@ -71,4 +71,11 @@ config BCM2835_MBOX
 	  the services of the Videocore. Say Y here if you want to use the
 	  BCM2835 Mailbox.
 
+config STI_MBOX
+	tristate "STI Mailbox framework support"
+	depends on ARCH_STI && OF
+	help
+	  Mailbox implementation for STMicroelectonics family chips with
+	  hardware for interprocessor communication.
+
 endif
diff --git a/drivers/mailbox/Makefile b/drivers/mailbox/Makefile
@@ -13,3 +13,5 @@ obj-$(CONFIG_PCC)		+= pcc.o
 obj-$(CONFIG_ALTERA_MBOX)	+= mailbox-altera.o
 
 obj-$(CONFIG_BCM2835_MBOX)	+= bcm2835-mailbox.o
+
+obj-$(CONFIG_STI_MBOX)		+= mailbox-sti.o
Original file line number	Diff line number	Diff line change
Expand Up		@@ -13,3 +13,5 @@ obj-$(CONFIG_PCC) += pcc.o
		obj-$(CONFIG_ALTERA_MBOX) += mailbox-altera.o

		obj-$(CONFIG_BCM2835_MBOX) += bcm2835-mailbox.o

		obj-$(CONFIG_STI_MBOX) += mailbox-sti.o