arm, davinci: da850/dm365 lowlevel cleanup

- Cleanup a lot of fix values, and use defines instead.
- Also make some values configurable through the board config
  file.
- delete the NAND_SPL code for da850, as it is not used actually
- remove the asm code

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Wolfgang Denk <hs@denx.de>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Cc: Tom Rini <tom.rini@gmail.com>
Cc: Christian Riesch <christian.riesch@omicron.at>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
diff --git a/arch/arm/include/asm/arch-davinci/pll_defs.h b/arch/arm/include/asm/arch-davinci/pll_defs.h
index 5c30953..f1396e3 100644
--- a/arch/arm/include/asm/arch-davinci/pll_defs.h
+++ b/arch/arm/include/asm/arch-davinci/pll_defs.h
@@ -57,11 +57,24 @@
 	unsigned int	plldiv9;	/* 0x174 */
 };
 
+#define PLL_MASTER_LOCK	(1 << 4)
+
+#define PLLCTL_CLOCK_MODE_SHIFT	8
 #define PLLCTL_PLLEN	(1 << 0)
 #define PLLCTL_PLLPWRDN	(1 << 1)
 #define PLLCTL_PLLRST	(1 << 3)
+#define PLLCTL_PLLDIS	(1 << 4)
 #define PLLCTL_PLLENSRC	(1 << 5)
 #define PLLCTL_RES_9	(1 << 8)
+#define PLLCTL_EXTCLKSRC	(1 << 9)
+
+#define PLL_POSTDEN	(1 << 15)
+
+#define PLL_SCSCFG3_DIV45PENA	(1 << 2)
+#define PLL_SCSCFG3_EMA_CLKSRC	(1 << 1)
+
+#define PLL_RSTYPE_POR		(1 << 0)
+#define PLL_RSTYPE_XWRST	(1 << 1)
 
 #define PLLSECCTL_TINITZ	(1 << 16)
 #define PLLSECCTL_TENABLE	(1 << 17)
@@ -69,6 +82,7 @@
 #define PLLSECCTL_STOPMODE	(1 << 22)
 
 #define PLLCMD_GOSET		(1 << 0)
+#define PLLCMD_GOSTAT		(1 << 0)
 
 #define PLL0_LOCK		0x07000000
 #define PLL1_LOCK		0x07000000