[U-Boot] [PATCH] Add NFC register definitions for Allwinner A20 SoC

[Nikolai Zhubr <n-a-zhubr@yandex.ru>]

And while at it, why not finally add the DT register definitions for 
Allwinner A20 NFC. I'm certainly not the author of these, and they have 
been around for many years already. Its quite unlikely they will 
suddenly change, or vary between different A20-based devices. The A20 
SoC is gradually becoming obsolete, so why wait any more. Note: one 
whould typically need to also add NFC node definition on top of this in 
order to actually use it.

Signed-off-by: Nikolai Zhubr <n-a-zhubr@yandex.ru>
---
arch/arm/dts/sun7i-a20.dtsi | 69 
+++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 69 insertions(+)

diff --git a/arch/arm/dts/sun7i-a20.dtsi b/arch/arm/dts/sun7i-a20.dtsi
index e529e4f..6f96693 100644
--- a/arch/arm/dts/sun7i-a20.dtsi
+++ b/arch/arm/dts/sun7i-a20.dtsi
@@ -920,6 +920,75 @@
				pins = "PI20", "PI21";
				function = "uart7";
			};
+			nand_pins_a: nand_base0 at 0 {
+				allwinner,pins = "PC0", "PC1", "PC2",
+						"PC5", "PC8", "PC9", "PC10",
+						"PC11", "PC12", "PC13", "PC14",
+						"PC15", "PC16";
+				allwinner,function = "nand0";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+			nand_cs0_pins_a: nand_cs at 0 {
+				allwinner,pins = "PC4";
+				allwinner,function = "nand0";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+			nand_cs1_pins_a: nand_cs at 1 {
+				allwinner,pins = "PC3";
+				allwinner,function = "nand0";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+			nand_cs2_pins_a: nand_cs at 2 {
+				allwinner,pins = "PC17";
+				allwinner,function = "nand0";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+			nand_cs3_pins_a: nand_cs at 3 {
+				allwinner,pins = "PC18";
+				allwinner,function = "nand0";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+			nand_cs4_pins_a: nand_cs at 4 {
+				allwinner,pins = "PC19";
+				allwinner,function = "nand0";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+			nand_cs5_pins_a: nand_cs at 5 {
+				allwinner,pins = "PC20";
+				allwinner,function = "nand0";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+			nand_cs6_pins_a: nand_cs at 6 {
+				allwinner,pins = "PC21";
+				allwinner,function = "nand0";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+			nand_cs7_pins_a: nand_cs at 7 {
+				allwinner,pins = "PC22";
+				allwinner,function = "nand0";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+			nand_rb0_pins_a: nand_rb at 0 {
+				allwinner,pins = "PC6";
+				allwinner,function = "nand0";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+			nand_rb1_pins_a: nand_rb at 1 {
+				allwinner,pins = "PC7";
+				allwinner,function = "nand0";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
		};

		timer at 1c20c00 {
-- 
2.1.2