da830: enable SPI flash boot mode

Enable SPI flash boot mode in configuration file as default.
With the introduction of 456MHz part, SPI operating frequency
will increase and at this frequency SPI does not work correctly.
Hence reduce the default SPI speed to 30MHz from 50MHz.

Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: Nagabhushana Netagunte <nagabhushana.netagunte@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

include/configs/da830evm.h

@@ -28,6 +28,7 @@
  * Board
  */
 #define CONFIG_DRIVER_TI_EMAC
+#define CONFIG_USE_SPIFLASH
 
 /*
  * SoC Configuration
@@ -145,8 +146,8 @@
 #define CONFIG_DAVINCI_SPI
 #define CONFIG_SYS_SPI_BASE		DAVINCI_SPI0_BASE
 #define CONFIG_SYS_SPI_CLK		clk_get(DAVINCI_SPI0_CLKID)
-#define CONFIG_SF_DEFAULT_SPEED		50000000
-#define CONFIG_SYS_ENV_SPI_MAX_HZ	CONFIG_SF_DEFAULT_SPEED
+#define CONFIG_SF_DEFAULT_SPEED		30000000
+#define CONFIG_ENV_SPI_MAX_HZ		CONFIG_SF_DEFAULT_SPEED
 #endif
 
 /*
@@ -201,7 +202,6 @@
 #define CONFIG_CMD_MEMORY
 #undef CONFIG_CMD_FPGA
 #undef CONFIG_CMD_SETGETDCR
-#define CONFIG_CMD_EEPROM
 
 #ifndef CONFIG_DRIVER_TI_EMAC
 #undef CONFIG_CMD_NET
@@ -223,6 +223,7 @@
 #undef CONFIG_CMD_IMLS
 #undef CONFIG_CMD_FLASH
 #define CONFIG_CMD_SPI
+#define CONFIG_CMD_SF
 #define CONFIG_CMD_SAVEENV
 #endif