ARM: 8888/1: EDAC: Add driver for the Marvell Armada XP SDRAM and L2 cache ECC

Add support for the ECC functionality as found in the DDR RAM and L2
cache controllers on the MV78230/MV78x60 SoCs. This driver has been
tested on the MV78460 (on a custom board with a DDR3 ECC DIMM).

[cp use SPDX license]
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

MAINTAINERS

@@ -5755,6 +5755,12 @@ L:	linux-edac@vger.kernel.org
 S:	Maintained
 F:	drivers/edac/amd64_edac*
 
+EDAC-ARMADA
+M:	Jan Luebbe <jlu@pengutronix.de>
+L:	linux-edac@vger.kernel.org
+S:	Maintained
+F:	drivers/edac/armada_xp_*
+
 EDAC-AST2500
 M:	Stefan Schaeckeler <sschaeck@cisco.com>
 S:	Supported

drivers/edac/Kconfig

@@ -466,6 +466,13 @@ config EDAC_SIFIVE
 	help
 	  Support for error detection and correction on the SiFive SoCs.
 
+config EDAC_ARMADA_XP
+	bool "Marvell Armada XP DDR and L2 Cache ECC"
+	depends on MACH_MVEBU_V7
+	help
+	  Support for error correction and detection on the Marvell Aramada XP
+	  DDR RAM and L2 cache controllers.
+
 config EDAC_SYNOPSYS
 	tristate "Synopsys DDR Memory Controller"
 	depends on ARCH_ZYNQ || ARCH_ZYNQMP

drivers/edac/Makefile

@@ -80,6 +80,7 @@ obj-$(CONFIG_EDAC_THUNDERX)		+= thunderx_edac.o
 
 obj-$(CONFIG_EDAC_ALTERA)		+= altera_edac.o
 obj-$(CONFIG_EDAC_SIFIVE)		+= sifive_edac.o
+obj-$(CONFIG_EDAC_ARMADA_XP)		+= armada_xp_edac.o
 obj-$(CONFIG_EDAC_SYNOPSYS)		+= synopsys_edac.o
 obj-$(CONFIG_EDAC_XGENE)		+= xgene_edac.o
 obj-$(CONFIG_EDAC_TI)			+= ti_edac.o