ARM: davinci: da850: add pinctrl driver DT entries

For DT, DaVinci platform can use pinctrl-single driver for handling
padconf registers.

Enable PINCTRL Kconfig for MACH_DA8XX_DT platform. Add required
pinctrl DT entries in da850 dts file.

 Test procedure
  1)Populate DT file with NAND node information.
  2)Populate board DT file with pinmux information for NAND.
  3)Boot and confirm NAND is detected by the kernel.
  4)cat /proc/mtd to show partitions.

Signed-off-by: Kumar, Anil <anilkumar.v@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

3 files changed, 14 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
index 37dc5a3243b8..087ba28285d2 100644
--- a/arch/arm/boot/dts/da850-evm.dts
+++ b/arch/arm/boot/dts/da850-evm.dts
@@ -15,6 +15,9 @@
         model = "DA850/AM1808/OMAP-L138 EVM";
 
         soc {
+                pmx_core: pinmux@1c14120 {
+                        status = "okay";
+                };
                 serial0: serial@1c42000 {
                         status = "okay";
                 };
diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
index 640ab75c20db..f74740d0994b 100644
--- a/arch/arm/boot/dts/da850.dtsi
+++ b/arch/arm/boot/dts/da850.dtsi
@@ -29,6 +29,16 @@
                 #size-cells = <1>;
                 ranges = <0x0 0x01c00000 0x400000>;
 
+                pmx_core: pinmux@1c14120 {
+                        compatible = "pinctrl-single";
+                        reg = <0x14120 0x50>;
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        pinctrl-single,bit-per-mux;
+                        pinctrl-single,register-width = <32>;
+                        pinctrl-single,function-mask = <0xffffffff>;
+                        status = "disabled";
+                };
                 serial0: serial@1c42000 {
                         compatible = "ns16550a";
                         reg = <0x42000 0x100>;
diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index 0153950f6068..a075b3e0c5c7 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -62,6 +62,7 @@ config MACH_DA8XX_DT
         bool "Support DA8XX platforms using device tree"
         default y
         depends on ARCH_DAVINCI_DA8XX
+        select PINCTRL
         help
           Say y here to include support for TI DaVinci DA850 based using
           Flattened Device Tree. More information at Documentation/devicetree