Convert CONFIG_SOC_DA8XX et al to Kconfig

This converts the following to Kconfig:
   CONFIG_SOC_DA8XX
   CONFIG_SOC_DA850
   CONFIG_DA850_LOWLEVEL
   CONFIG_MACH_DAVINCI_DA850_EVM
   CONFIG_SYS_DA850_PLL_INIT
   CONFIG_SYS_DA850_DDR_INIT

Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: David Lechner <david@lechnology.com>
[trini: Rework CONFIG_SYS_DA850_PLL_INIT so it's selected on SOC_DA8XX]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index 35e4e9b..51a70e0 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -6,47 +6,63 @@
 
 config TARGET_IPAM390
 	bool "IPAM390 board"
+	select MACH_DAVINCI_DA850_EVM
+	select SOC_DA850
 	select SUPPORT_SPL
-	select SYS_DA850_PLL_INIT
-	select SYS_DA850_DDR_INIT
 
 config TARGET_DA850EVM
 	bool "DA850 EVM board"
+	select MACH_DAVINCI_DA850_EVM
+	select SOC_DA850
 	select SUPPORT_SPL
-	select SYS_DA850_PLL_INIT
-	select SYS_DA850_DDR_INIT
 
 config TARGET_EA20
 	bool "EA20 board"
+	select MACH_DAVINCI_DA850_EVM
+	select SOC_DA850
 	select BOARD_LATE_INIT
 
 config TARGET_OMAPL138_LCDK
 	bool "OMAPL138 LCDK"
+	select SOC_DA8XX
 	select SUPPORT_SPL
-	select SYS_DA850_PLL_INIT
-	select SYS_DA850_DDR_INIT
 
 config TARGET_CALIMAIN
 	bool "Calimain board"
-	select SYS_DA850_PLL_INIT
-	select SYS_DA850_DDR_INIT
+	select SOC_DA850
 
 config TARGET_LEGOEV3
 	bool "LEGO MINDSTORMS EV3"
-	select SYS_DA850_PLL_INIT
-	select SYS_DA850_DDR_INIT
+	select MACH_DAVINCI_DA850_EVM
+	select SOC_DA850
 
 endchoice
 
 config SYS_SOC
 	default "davinci"
 
+config DA850_LOWLEVEL
+	bool "Enable Lowlevel DA850 initialization"
+	depends on SOC_DA850
+
 config SYS_DA850_PLL_INIT
 	bool
 
 config SYS_DA850_DDR_INIT
 	bool
 
+config SOC_DA850
+	bool
+	select SOC_DA8XX
+	select SYS_DA850_DDR_INIT if SUPPORT_SPL || DA850_LOWLEVEL
+
+config SOC_DA8XX
+	bool
+	select SYS_DA850_PLL_INIT if SUPPORT_SPL || DA850_LOWLEVEL
+
+config MACH_DAVINCI_DA850_EVM
+	bool
+
 source "board/Barix/ipam390/Kconfig"
 source "board/davinci/da8xxevm/Kconfig"
 source "board/davinci/ea20/Kconfig"