mtd: rawnand: pl353: Add support for the ARM PL353 SMC NAND controller

This hardware controller is embedded in XilinX Zynq-7000 SoCs and has
partial support for Hamming ECC correction.

This work is inspired from the original contributions of Punnaiah
Choudary Kalluri and Naga Sureshkumar Relli.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Michael Walle <michael@walle.cc> [on zynq-7000]
Link: https://lore.kernel.org/linux-mtd/20210610082040.2075611-19-miquel.raynal@bootlin.com

drivers/mtd/nand/raw/Kconfig

@@ -453,6 +453,14 @@ config MTD_NAND_ROCKCHIP
 	    NFC v800: RK3308, RV1108
 	    NFC v900: PX30, RK3326
 
+config MTD_NAND_PL35X
+	tristate "ARM PL35X NAND controller"
+	depends on OF || COMPILE_TEST
+	depends on PL353_SMC
+	help
+	  Enables support for PrimeCell SMC PL351 and PL353 NAND
+	  controller found on Zynq7000.
+
 comment "Misc"
 
 config MTD_SM_COMMON

drivers/mtd/nand/raw/Makefile

@@ -57,6 +57,7 @@ obj-$(CONFIG_MTD_NAND_CADENCE)		+= cadence-nand-controller.o
 obj-$(CONFIG_MTD_NAND_ARASAN)		+= arasan-nand-controller.o
 obj-$(CONFIG_MTD_NAND_INTEL_LGM)	+= intel-nand-controller.o
 obj-$(CONFIG_MTD_NAND_ROCKCHIP)		+= rockchip-nand-controller.o
+obj-$(CONFIG_MTD_NAND_PL35X)		+= pl35x-nand-controller.o
 
 nand-objs := nand_base.o nand_legacy.o nand_bbt.o nand_timings.o nand_ids.o
 nand-objs += nand_onfi.o