Add SPI support to mx51evk board

The patch adds SPI devices to the mx51evk board.
The MC13892 chip (PMIC) is supported.

Signed-off-by: Stefano Babic <sbabic@denx.de>
diff --git a/include/configs/mx51evk.h b/include/configs/mx51evk.h
index 3626df7..86a4731 100644
--- a/include/configs/mx51evk.h
+++ b/include/configs/mx51evk.h
@@ -54,6 +54,8 @@
 /* size in bytes reserved for initial data */
 #define CONFIG_SYS_GBL_DATA_SIZE	128
 
+#define BOARD_LATE_INIT
+
 /*
  * Hardware drivers
  */
@@ -61,6 +63,19 @@
 #define CONFIG_SYS_MX51_UART1
 
 /*
+ * SPI Configs
+ * */
+#define CONFIG_CMD_SPI
+
+#define CONFIG_MXC_SPI
+
+#define CONFIG_FSL_PMIC
+#define CONFIG_FSL_PMIC_BUS	0
+#define CONFIG_FSL_PMIC_CS	0
+#define CONFIG_FSL_PMIC_CLK	2500000
+#define CONFIG_FSL_PMIC_MODE	(SPI_CPOL | SPI_CS_HIGH)
+
+/*
  * MMC Configs
  * */
 #define CONFIG_FSL_ESDHC