omap3: Consolidate SDRC related operations

Consolidated SDRC related functions into one file - sdrc.c

And also replaced sdrc_init with generic memory init
function (mem_init), this generalization of omap memory setup
is necessary to support the new emif4 interface introduced in AM3517.

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

arch/arm/include/asm/arch-omap3/cpu.h

@@ -215,6 +215,7 @@ struct sdrc {
 	u8 res4[0xC];
 	struct sdrc_cs cs[2];	/* 0x80 || 0xB0 */
 };
+
 #endif /* __ASSEMBLY__ */
 #endif /* __KERNEL_STRICT_NAMES */
 

arch/arm/include/asm/arch-omap3/mem.h

@@ -270,4 +270,17 @@ enum {
 #define PISMO1_ONEN_BASE	ONENAND_MAP
 #define DBG_MPDB_BASE		DEBUG_BASE
 
+#ifndef __ASSEMBLY__
+
+/* Function prototypes */
+void mem_init(void);
+
+u32 is_mem_sdr(void);
+u32 mem_ok(u32 cs);
+
+u32 get_sdr_cs_size(u32);
+u32 get_sdr_cs_offset(u32);
+
+#endif	/* __ASSEMBLY__ */
+
 #endif /* endif _MEM_H_ */

arch/arm/include/asm/arch-omap3/sys_proto.h

@@ -46,8 +46,6 @@ u32 get_sysboot_value(void);
 u32 is_gpmc_muxed(void);
 u32 get_gpmc0_type(void);
 u32 get_gpmc0_width(void);
-u32 get_sdr_cs_size(u32);
-u32 get_sdr_cs_offset(u32);
 u32 is_running_in_sdram(void);
 u32 is_running_in_sram(void);
 u32 is_running_in_flash(void);