mtd: rawnand: Add Phytium NAND flash controller support

Documentation/devicetree/bindings/mtd/phytium,nfc.yaml

@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/phytium,nfc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Phytium Nand Flash controller
+
+maintainers:
+  - Chen Baozi <[email protected]>
+
+properties:
+  compatible:
+    const: phytium,nfc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  nand-ecc-strength:
+    const: 8
+
+  nand-ecc-step-size:
+    const: 512
+
+allOf:
+  - $ref: "nand-controller.yaml#"
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+examples:
+  - |
+    nand0: nand@28002000 {
+      compatible = "phytium,nfc";
+      reg = <0x0 0x28002000 0x0 0x1000>;
+      interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+    };

drivers/mtd/nand/raw/Kconfig

@@ -150,6 +150,25 @@ config MTD_NAND_ORION
 	  No board specific support is done by this driver, each board
 	  must advertise a platform_device for the driver to attach.
 
+config MTD_NAND_PHYTIUM
+	tristate
+
+config MTD_NAND_PHYTIUM_PCI
+	tristate "Support Phytium NAND controller as a PCI device"
+	select MTD_NAND_PHYTIUM
+	depends on PCI
+	help
+	  Enable the driver for NAND flash controller of Phytium Px210 chipset,
+	  using the Phytium NAND controller core.
+
+config MTD_NAND_PHYTIUM_PLAT
+	tristate "Support Phytium NAND controller as a platform device"
+	select MTD_NAND_PHYTIUM
+	depends on ARCH_PHYTIUM
+	help
+	  Enable the driver for NAND flash controller of Phytium CPU chipset,
+	  using the Phytium NAND controller core.
+
 config MTD_NAND_MARVELL
 	tristate "Marvell EBU NAND controller"
 	depends on PXA3xx || ARCH_MMP || PLAT_ORION || ARCH_MVEBU || \

drivers/mtd/nand/raw/Makefile

@@ -57,6 +57,9 @@ obj-$(CONFIG_MTD_NAND_INTEL_LGM)	+= intel-nand-controller.o
 obj-$(CONFIG_MTD_NAND_ROCKCHIP)		+= rockchip-nand-controller.o
 obj-$(CONFIG_MTD_NAND_PL35X)		+= pl35x-nand-controller.o
 obj-$(CONFIG_MTD_NAND_RENESAS)		+= renesas-nand-controller.o
+obj-$(CONFIG_MTD_NAND_PHYTIUM)		+= phytium_nand.o
+obj-$(CONFIG_MTD_NAND_PHYTIUM_PCI)	+= phytium_nand_pci.o
+obj-$(CONFIG_MTD_NAND_PHYTIUM_PLAT)	+= phytium_nand_plat.o
 
 nand-objs := nand_base.o nand_legacy.o nand_bbt.o nand_timings.o nand_ids.o
 nand-objs += nand_onfi.o