memory: brcmstb: Add driver for DPFE

This driver allows access to DRAM properties, such as the refresh rate, via the Broadcom STB DDR PHY Front End (DPFE). The refresh rate can be used as indirect indicator of the DRAM temperature. The driver also allows setting of the sampling interval. Signed-off-by: Markus Mayer <[email protected]> Signed-off-by: Florian Fainelli <[email protected]>
jpenney · Sep 18, 2017 · 2f330ca · 2f330ca
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diff --git a/MAINTAINERS b/MAINTAINERS
@@ -2963,6 +2963,14 @@ L:	[email protected]
 S:	Maintained
 F:	drivers/mtd/nand/brcmnand/
 
+BROADCOM STB DPFE DRIVER
+M:	Markus Mayer <[email protected]>
+M:	[email protected]
+L:	[email protected] (moderated for non-subscribers)
+S:	Maintained
+F:	Documentation/devicetree/bindings/memory-controllers/brcm,dpfe-cpu.txt
+F:	drivers/memory/brcmstb_dpfe.c
+
 BROADCOM SYSTEMPORT ETHERNET DRIVER
 M:	Florian Fainelli <[email protected]>
 L:	[email protected]

diff --git a/drivers/memory/Makefile b/drivers/memory/Makefile
@@ -8,6 +8,7 @@ endif
 obj-$(CONFIG_ARM_PL172_MPMC)	+= pl172.o
 obj-$(CONFIG_ATMEL_SDRAMC)	+= atmel-sdramc.o
 obj-$(CONFIG_ATMEL_EBI)		+= atmel-ebi.o
+obj-$(CONFIG_ARCH_BRCMSTB)	+= brcmstb_dpfe.o
 obj-$(CONFIG_TI_AEMIF)		+= ti-aemif.o
 obj-$(CONFIG_TI_EMIF)		+= emif.o
 obj-$(CONFIG_OMAP_GPMC)		+= omap-gpmc.o