arm: omap-common: Guard some parts of the code with CONFIG_OMAP44XX/OMAP54XX

On OMAP4 platforms that also need to calculate their DDR settings we are
now getting very close to the linker limit size.  Since OMAP44XX is only
seen with LPDDR2, remove some run time tests for LPDDR2 or DDR3 as we
will know that we don't have it for OMAP44XX.

Cc: Nishanth Menon <nm@ti.com>
Signed-off-by: Tom Rini <trini@konsulko.com>

arch/arm/cpu/armv7/omap-common/emif-common.c

@@ -195,6 +195,7 @@ void emif_update_timings(u32 base, const struct emif_regs *regs)
 	}
 }
 
+#ifndef CONFIG_OMAP44XX
 static void omap5_ddr3_leveling(u32 base, const struct emif_regs *regs)
 {
 	struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
@@ -405,6 +406,7 @@ static void ddr3_init(u32 base, const struct emif_regs *regs)
 	else
 		dra7_ddr3_init(base, regs);
 }
+#endif
 
 #ifndef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
 #define print_timing_reg(reg) debug(#reg" - 0x%08x\n", (reg))
@@ -1178,7 +1180,7 @@ static void do_sdram_init(u32 base)
 #endif /* CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS */
 
 	/*
-	 * Initializing the LPDDR2 device can not happen from SDRAM.
+	 * Initializing the DDR device can not happen from SDRAM.
 	 * Changing the timing registers in EMIF can happen(going from one
 	 * OPP to another)
 	 */
@@ -1186,15 +1188,19 @@ static void do_sdram_init(u32 base)
 		if (emif_sdram_type(regs->sdram_config) ==
 		    EMIF_SDRAM_TYPE_LPDDR2)
 			lpddr2_init(base, regs);
+#ifndef CONFIG_OMAP44XX
 		else
 			ddr3_init(base, regs);
+#endif
 	}
+#ifdef CONFIG_OMAP54X
 	if (warm_reset() && (emif_sdram_type(regs->sdram_config) ==
 	    EMIF_SDRAM_TYPE_DDR3) && !is_dra7xx()) {
 		set_lpmode_selfrefresh(base);
 		emif_reset_phy(base);
 		omap5_ddr3_leveling(base, regs);
 	}
+#endif
 
 	/* Write to the shadow registers */
 	emif_update_timings(base, regs);