board: at91sam9261ek: Update to support DT and DM

Add the dts files to support deivce tree, update the configuration
files to support the device tree and driver model. The peripheral
clock and pins configuration are handled by the clock and the pinctrl
drivers respectively.

Enable the early debug UART to debug problems when an ICE or other
debug mechanism is not available.

Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/board/atmel/at91sam9261ek/Makefile b/board/atmel/at91sam9261ek/Makefile
index c547fed..d7ba153 100644
--- a/board/atmel/at91sam9261ek/Makefile
+++ b/board/atmel/at91sam9261ek/Makefile
@@ -10,5 +10,5 @@
 #
 
 obj-y += at91sam9261ek.o
-obj-y += led.o
+obj-$(CONFIG_AT91_LED) += led.o
 obj-$(CONFIG_HAS_DATAFLASH) += partition.o
diff --git a/board/atmel/at91sam9261ek/at91sam9261ek.c b/board/atmel/at91sam9261ek/at91sam9261ek.c
index 1ba6063..c11bb2c 100644
--- a/board/atmel/at91sam9261ek/at91sam9261ek.c
+++ b/board/atmel/at91sam9261ek/at91sam9261ek.c
@@ -7,6 +7,7 @@
  */
 
 #include <common.h>
+#include <debug_uart.h>
 #include <asm/io.h>
 #include <asm/arch/at91sam9261.h>
 #include <asm/arch/at91sam9261_matrix.h>
@@ -221,6 +222,23 @@
 #endif /* CONFIG_LCD_INFO */
 #endif
 
+#ifdef CONFIG_DEBUG_UART_BOARD_INIT
+void board_debug_uart_init(void)
+{
+	at91_seriald_hw_init();
+}
+#endif
+
+#ifdef CONFIG_BOARD_EARLY_INIT_F
+int board_early_init_f(void)
+{
+#ifdef CONFIG_DEBUG_UART
+	debug_uart_init();
+#endif
+	return 0;
+}
+#endif
+
 int board_init(void)
 {
 #ifdef CONFIG_AT91SAM9G10EK
@@ -233,13 +251,9 @@
 	/* adress of boot parameters */
 	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 
-	at91_seriald_hw_init();
 #ifdef CONFIG_CMD_NAND
 	at91sam9261ek_nand_hw_init();
 #endif
-#ifdef CONFIG_HAS_DATAFLASH
-	at91_spi0_hw_init(1 << 0);
-#endif
 #ifdef CONFIG_DRIVER_DM9000
 	at91sam9261ek_dm9000_hw_init();
 #endif