fsi: Add On-Chip Controller (OCC) driver

The OCC is a device embedded on a POWER processor that collects and aggregates sensor data from the processor and system. The OCC can provide the raw sensor data as well as perform thermal and power management on the system. This driver provides an atomic communications channel between a service processor (e.g. a BMC) and the OCC. The driver is dependent on the FSI SBEFIFO driver to get hardware access through the SBE to the OCC SRAM. Commands are issued to the SBE to send or fetch data to the SRAM. Signed-off-by: Eddie James <[email protected]> Signed-off-by: Andrew Jeffery <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]> Signed-off-by: Joel Stanley <[email protected]> Signed-off-by: Guenter Roeck <[email protected]>
berg · Dec 3, 2018 · 7ed98dd · 7ed98dd
1 parent 6021c48
commit 7ed98dd
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diff --git a/drivers/fsi/Kconfig b/drivers/fsi/Kconfig
@@ -65,4 +65,14 @@ config FSI_SBEFIFO
 	a pipe-like FSI device for communicating with the self boot engine
 	(SBE) on POWER processors.
 
+config FSI_OCC
+	tristate "OCC SBEFIFO client device driver"
+	depends on FSI_SBEFIFO
+	---help---
+	This option enables an SBEFIFO based On-Chip Controller (OCC) device
+	driver. The OCC is a device embedded on a POWER processor that collects
+	and aggregates sensor data from the processor and system. The OCC can
+	provide the raw sensor data as well as perform thermal and power
+	management on the system.
+
 endif
diff --git a/drivers/fsi/Makefile b/drivers/fsi/Makefile
@@ -5,3 +5,4 @@ obj-$(CONFIG_FSI_MASTER_GPIO) += fsi-master-gpio.o
 obj-$(CONFIG_FSI_MASTER_AST_CF) += fsi-master-ast-cf.o
 obj-$(CONFIG_FSI_SCOM) += fsi-scom.o
 obj-$(CONFIG_FSI_SBEFIFO) += fsi-sbefifo.o
+obj-$(CONFIG_FSI_OCC) += fsi-occ.o