ARM: dts: at91: Add dts files for at91sam9x5ek

The device tree source files of at91sam9x5ek board are copied from
the Linux v4.10, do the changes below.
 - Add the reg property for the pinctrl node.
 - Move the gpio (pioA, pioB, pioC ...) nodes as the pinctrl's
   slibling nodes, instead of the child nodes.
 - Add the "u-boot,dm-pre-reloc" property to determine which nodes
   are used by the board_init_f stage.
 - Change the compatible of the spi flash to "spi-flash".
 - Add the spi0 aliases.
 - Fix the compilation warnings.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/dts/at91sam9g35.dtsi b/arch/arm/dts/at91sam9g35.dtsi
new file mode 100644
index 0000000..ff41158
--- /dev/null
+++ b/arch/arm/dts/at91sam9g35.dtsi
@@ -0,0 +1,30 @@
+/*
+ * at91sam9g35.dtsi - Device Tree Include file for AT91SAM9G35 SoC
+ *
+ * Copyright (C) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * Licensed under GPLv2.
+ */
+
+#include "at91sam9x5.dtsi"
+#include "at91sam9x5_lcd.dtsi"
+#include "at91sam9x5_macb0.dtsi"
+
+/ {
+	model = "Atmel AT91SAM9G35 SoC";
+	compatible = "atmel,at91sam9g35", "atmel,at91sam9x5";
+
+	ahb {
+		apb {
+			pinctrl@fffff400 {
+				atmel,mux-mask = <
+				      /*    A         B          C     */
+				       0xffffffff 0xffe0399f 0xc000000c  /* pioA */
+				       0x000406ff 0x00047e3f 0x00000000  /* pioB */
+				       0xfdffffff 0x00000000 0xb83fffff  /* pioC */
+				       0x003fffff 0x003f8000 0x00000000  /* pioD */
+				      >;
+			};
+		};
+	};
+};