5 files changed, 98 insertions, 0 deletions

diff --git a/arch/arm/dts/sun5i-a10s.dtsi b/arch/arm/dts/sun5i-a10s.dtsi
index bddd0de..a5f8855 100644
--- a/arch/arm/dts/sun5i-a10s.dtsi
+++ b/arch/arm/dts/sun5i-a10s.dtsi
@@ -241,6 +241,20 @@
 		allwinner,drive = <SUN4I_PINCTRL_30_MA>;
 		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
 	};
+
+	nand_cs2_pins_a: nand_cs@2 {
+		allwinner,pins = "PC17";
+		allwinner,function = "nand0";
+		allwinner,drive = <0>;
+		allwinner,pull = <0>;
+	};
+
+	nand_cs3_pins_a: nand_cs@3 {
+		allwinner,pins = "PC18";
+		allwinner,function = "nand0";
+		allwinner,drive = <0>;
+		allwinner,pull = <0>;
+	};
 };
 
 &sram_a {
diff --git a/arch/arm/dts/sun5i-a13-olinuxino.dts b/arch/arm/dts/sun5i-a13-olinuxino.dts
index b3c234c..30e069a 100644
--- a/arch/arm/dts/sun5i-a13-olinuxino.dts
+++ b/arch/arm/dts/sun5i-a13-olinuxino.dts
@@ -155,6 +155,21 @@
 	status = "okay";
 };
 
+&nfc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&nand_pins_a &nand_cs0_pins_a &nand_rb0_pins_a>;
+	status = "okay";
+
+	nand@0 {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		reg = <0>;
+		allwinner,rb = <0>;
+		nand-ecc-mode = "hw";
+		allwinner,randomize;
+	};
+};
+
 &ohci0 {
 	status = "okay";
 };
diff --git a/arch/arm/dts/sun5i-r8-chip.dts b/arch/arm/dts/sun5i-r8-chip.dts
index 6ad19e2..b1b62d5 100644
--- a/arch/arm/dts/sun5i-r8-chip.dts
+++ b/arch/arm/dts/sun5i-r8-chip.dts
@@ -142,6 +142,21 @@
 	status = "okay";
 };
 
+&nfc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&nand_pins_a &nand_cs0_pins_a &nand_rb0_pins_a>;
+	status = "okay";
+
+	nand@0 {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		reg = <0>;
+		allwinner,rb = <0>;
+		nand-ecc-mode = "hw";
+		nand-on-flash-bbt;
+	};
+};
+
 &ohci0 {
 	status = "okay";
 };
diff --git a/arch/arm/dts/sun5i.dtsi b/arch/arm/dts/sun5i.dtsi
index 59a9426..87e5353 100644
--- a/arch/arm/dts/sun5i.dtsi
+++ b/arch/arm/dts/sun5i.dtsi
@@ -356,6 +356,17 @@
 			#dma-cells = <2>;
 		};
 
+		nfc: nand@01c03000 {
+			compatible = "allwinner,sun4i-a10-nand";
+			reg = <0x01c03000 0x1000>;
+			interrupts = <37>;
+			clocks = <&ahb_gates 13>, <&nand_clk>;
+			clock-names = "ahb", "mod";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		spi0: spi@01c05000 {
 			compatible = "allwinner,sun4i-a10-spi";
 			reg = <0x01c05000 0x1000>;
@@ -548,6 +559,44 @@
 				allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
 			};
 
+			nand_pins_a: nand_base0@0 {
+				allwinner,pins = "PC0", "PC1", "PC2",
+						"PC5", "PC8", "PC9", "PC10",
+						"PC11", "PC12", "PC13", "PC14",
+						"PC15";
+				allwinner,function = "nand0";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+
+			nand_cs0_pins_a: nand_cs@0 {
+				allwinner,pins = "PC4";
+				allwinner,function = "nand0";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+
+			nand_cs1_pins_a: nand_cs@1 {
+				allwinner,pins = "PC3";
+				allwinner,function = "nand0";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+
+			nand_rb0_pins_a: nand_rb@0 {
+				allwinner,pins = "PC6";
+				allwinner,function = "nand0";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+
+			nand_rb1_pins_a: nand_rb@1 {
+				allwinner,pins = "PC7";
+				allwinner,function = "nand0";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+
 			uart3_pins_a: uart3@0 {
 				allwinner,pins = "PG9", "PG10";
 				allwinner,function = "uart3";
diff --git a/arch/arm/include/asm/arch-sunxi/clock_sun4i.h b/arch/arm/include/asm/arch-sunxi/clock_sun4i.h
index 0088bb9..d1c5ad0 100644
--- a/arch/arm/include/asm/arch-sunxi/clock_sun4i.h
+++ b/arch/arm/include/asm/arch-sunxi/clock_sun4i.h
@@ -269,6 +269,11 @@ struct sunxi_ccm_reg {
 #define CCM_MBUS_CTRL_CLK_SRC_PLL5 0x2
 #define CCM_MBUS_CTRL_GATE (0x1 << 31)
 
+#define CCM_NAND_CTRL_M(x)		((x) - 1)
+#define CCM_NAND_CTRL_N(x)		((x) << 16)
+#define CCM_NAND_CTRL_OSCM24		(0x0 << 24)
+#define CCM_NAND_CTRL_PLL6		(0x1 << 24)
+#define CCM_NAND_CTRL_PLL5		(0x2 << 24)
 #define CCM_NAND_CTRL_ENABLE		(0x1 << 31)
 
 #define CCM_MMC_CTRL_M(x)		((x) - 1)