ARM: OMAP3: use clock data from TI clock driver for legacy boot

As the clock data is now available for the legacy boot also from the
clock driver, use this rather than the data under the mach folder.
This allows us to get rid of the old clock data completely.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>

arch/arm/mach-omap2/io.c

@@ -461,7 +461,17 @@ void __init omap3_init_early(void)
 	omap3xxx_clockdomains_init();
 	omap3xxx_hwmod_init();
 	omap_hwmod_init_postsetup();
-	omap_clk_soc_init = omap3xxx_clk_init;
+	if (!of_have_populated_dt()) {
+		omap3_prcm_legacy_iomaps_init();
+		if (soc_is_am35xx())
+			omap_clk_soc_init = am35xx_clk_legacy_init;
+		else if (cpu_is_omap3630())
+			omap_clk_soc_init = omap36xx_clk_legacy_init;
+		else if (omap_rev() == OMAP3430_REV_ES1_0)
+			omap_clk_soc_init = omap3430es1_clk_legacy_init;
+		else
+			omap_clk_soc_init = omap3430_clk_legacy_init;
+	}
 }
 
 void __init omap3430_init_early(void)
@@ -509,8 +519,6 @@ void __init ti81xx_init_early(void)
 	omap_hwmod_init_postsetup();
 	if (of_have_populated_dt())
 		omap_clk_soc_init = ti81xx_dt_clk_init;
-	else
-		omap_clk_soc_init = omap3xxx_clk_init;
 }
 
 void __init omap3_init_late(void)
@@ -731,15 +739,17 @@ int __init omap_clk_init(void)
 
 	ti_clk_init_features();
 
-	ret = of_prcm_init();
-	if (ret)
-		return ret;
+	if (of_have_populated_dt()) {
+		ret = of_prcm_init();
+		if (ret)
+			return ret;
 
-	of_clk_init(NULL);
+		of_clk_init(NULL);
 
-	ti_dt_clk_init_retry_clks();
+		ti_dt_clk_init_retry_clks();
 
-	ti_dt_clockdomains_setup();
+		ti_dt_clockdomains_setup();
+	}
 
 	ret = omap_clk_soc_init();