rockchip: rk3188: move spl_board_init() into rk3188.c

Clean up the rk3188.c so that we can re-use the common spl board file.
Signed-off-by: NKever Yang <kever.yang@rock-chips.com>

arch/arm/mach-rockchip/rk3188-board-spl.c

@@ -114,42 +114,6 @@ void board_init_f(ulong dummy)
 		debug("DRAM init failed: %d\n", ret);
 		return;
 	}
-}
-
-static int setup_led(void)
-{
-#ifdef CONFIG_SPL_LED
-	struct udevice *dev;
-	char *led_name;
-	int ret;
-
-	led_name = fdtdec_get_config_string(gd->fdt_blob, "u-boot,boot-led");
-	if (!led_name)
-		return 0;
-	ret = led_get_by_label(led_name, &dev);
-	if (ret) {
-		debug("%s: get=%d\n", __func__, ret);
-		return ret;
-	}
-	ret = led_set_on(dev, 1);
-	if (ret)
-		return ret;
-#endif
-
-	return 0;
-}
-
-void spl_board_init(void)
-{
-	int ret;
-
-	ret = setup_led();
-	if (ret) {
-		debug("LED ret=%d\n", ret);
-		hang();
-	}
 
 	preloader_console_init();
-
-	return;
 }

arch/arm/mach-rockchip/rk3188/rk3188.c

@@ -60,3 +60,39 @@ int arch_cpu_init(void)
 #endif
 	return 0;
 }
+
+#ifdef CONFIG_SPL_BUILD
+static int setup_led(void)
+{
+#ifdef CONFIG_SPL_LED
+	struct udevice *dev;
+	char *led_name;
+	int ret;
+
+	led_name = fdtdec_get_config_string(gd->fdt_blob, "u-boot,boot-led");
+	if (!led_name)
+		return 0;
+	ret = led_get_by_label(led_name, &dev);
+	if (ret) {
+		debug("%s: get=%d\n", __func__, ret);
+		return ret;
+	}
+	ret = led_set_on(dev, 1);
+	if (ret)
+		return ret;
+#endif
+
+	return 0;
+}
+
+void spl_board_init(void)
+{
+	int ret;
+
+	ret = setup_led();
+	if (ret) {
+		debug("LED ret=%d\n", ret);
+		hang();
+	}
+}
+#endif