ARM: OMAP2+: Remove extra ifdefs for board-generic

We need just one ifdef for each ARCH_OMAP2/3/4.

Also remove the comment about i2c & twl driver as it's
pretty obvious that we still need some platform data
until drivers are converted to device tree.
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/board-generic.c

@@ -43,34 +43,6 @@ static void __init omap_init_irq(void)
 	of_irq_init(irq_match);
 }
 
-/*
- * XXX: Still needed to boot until the i2c & twl driver is adapted to
- * device-tree
- */
-#ifdef CONFIG_ARCH_OMAP4
-static struct twl4030_platform_data sdp4430_twldata = {
-	.irq_base	= TWL6030_IRQ_BASE,
-	.irq_end	= TWL6030_IRQ_END,
-};
-
-static void __init omap4_i2c_init(void)
-{
-	omap4_pmic_init("twl6030", &sdp4430_twldata);
-}
-#endif
-
-#ifdef CONFIG_ARCH_OMAP3
-static struct twl4030_platform_data beagle_twldata = {
-	.irq_base	= TWL4030_IRQ_BASE,
-	.irq_end	= TWL4030_IRQ_END,
-};
-
-static void __init omap3_i2c_init(void)
-{
-	omap3_pmic_init("twl4030", &beagle_twldata);
-}
-#endif
-
 static struct of_device_id omap_dt_match_table[] __initdata = {
 	{ .compatible = "simple-bus", },
 	{ .compatible = "ti,omap-infra", },
@@ -84,22 +56,6 @@ static void __init omap_generic_init(void)
 	of_platform_populate(NULL, omap_dt_match_table, NULL, NULL);
 }
 
-#ifdef CONFIG_ARCH_OMAP4
-static void __init omap4_init(void)
-{
-	omap4_i2c_init();
-	omap_generic_init();
-}
-#endif
-
-#ifdef CONFIG_ARCH_OMAP3
-static void __init omap3_init(void)
-{
-	omap3_i2c_init();
-	omap_generic_init();
-}
-#endif
-
 #ifdef CONFIG_SOC_OMAP2420
 static const char *omap242x_boards_compat[] __initdata = {
 	"ti,omap2420",
@@ -139,6 +95,22 @@ MACHINE_END
 #endif
 
 #ifdef CONFIG_ARCH_OMAP3
+static struct twl4030_platform_data beagle_twldata = {
+	.irq_base	= TWL4030_IRQ_BASE,
+	.irq_end	= TWL4030_IRQ_END,
+};
+
+static void __init omap3_i2c_init(void)
+{
+	omap3_pmic_init("twl4030", &beagle_twldata);
+}
+
+static void __init omap3_init(void)
+{
+	omap3_i2c_init();
+	omap_generic_init();
+}
+
 static const char *omap3_boards_compat[] __initdata = {
 	"ti,omap3",
 	NULL,
@@ -158,6 +130,22 @@ MACHINE_END
 #endif
 
 #ifdef CONFIG_ARCH_OMAP4
+static struct twl4030_platform_data sdp4430_twldata = {
+	.irq_base	= TWL6030_IRQ_BASE,
+	.irq_end	= TWL6030_IRQ_END,
+};
+
+static void __init omap4_i2c_init(void)
+{
+	omap4_pmic_init("twl6030", &sdp4430_twldata);
+}
+
+static void __init omap4_init(void)
+{
+	omap4_i2c_init();
+	omap_generic_init();
+}
+
 static const char *omap4_boards_compat[] __initdata = {
 	"ti,omap4",
 	NULL,