延迟上电

diff --git a/kernel/drivers/gpio/gpio_control.c b/kernel/drivers/gpio/gpio_control.c
index 20c0707e91..474eb4f696 100644
--- a/kernel/drivers/gpio/gpio_control.c
+++ b/kernel/drivers/gpio/gpio_control.c
@@ -50,6 +50,17 @@ int host_drv6_gpio;
 int host_drv_gpio;
 int usb_hub_gpio;
 int level = 0;
+
+static struct timer_list gpio_timer;
+
+static void gpio_timer_handle(unsigned long data)
+{
+	if(host_drv5_gpio > 0)
+		gpio_set_value(host_drv5_gpio,1);
+	del_timer(&gpio_timer);
+	printk("harris set gpio_timer_handle host_drv5_gpio\n");
+}
+
 static int gpio_control_parse_dt(struct platform_device *pdev)
 {
 	enum of_gpio_flags flags;
@@ -101,8 +112,8 @@ static int gpio_control_parse_dt(struct platform_device *pdev)
 			printk("Failed to request host_drv5_gpio\n");
 			return ret;
 		}
-		gpio_direction_output(host_drv5_gpio,1);
-		gpio_set_value(host_drv5_gpio,1);
+		gpio_direction_output(host_drv5_gpio,0);
+		gpio_set_value(host_drv5_gpio,0);
 		gpio_export(host_drv5_gpio,0);
 		printk("request host_drv5_gpio ok\n");
 	}
@@ -138,12 +149,13 @@ static int gpio_control_parse_dt(struct platform_device *pdev)
 		gpio_export(host_drv_gpio,0);
 		printk("request host_drv_gpio ok\n");
 	}	
-	mdelay(1000);
-	gpio_set_value(host_drv3_gpio,1);
-	gpio_set_value(host_drv5_gpio,1);
-	gpio_set_value(host_drv6_gpio,1);
-	gpio_set_value(host_drv_gpio,1);
-	mdelay(200);
+
+	init_timer(&gpio_timer);
+	gpio_timer.function = gpio_timer_handle;
+	gpio_timer.data = 0;
+	gpio_timer.expires = jiffies + 2*HZ;//1sec
+	add_timer(&gpio_timer);
+
 	return 0;
 }
 
diff --git a/u-boot/board/rockchip/rk32xx/rk32xx.c b/u-boot/board/rockchip/rk32xx/rk32xx.c
index 5b1578278d..c90ae476b2 100644
--- a/u-boot/board/rockchip/rk32xx/rk32xx.c
+++ b/u-boot/board/rockchip/rk32xx/rk32xx.c
@@ -173,10 +173,10 @@ int board_late_init(void)
 {
 	debug("board_late_init\n");
 	
-	gpio_direction_output(GPIO_BANK8 | GPIO_B1, 1);	//HOST_VBUS_DRV_3
-	gpio_direction_output(GPIO_BANK5 | GPIO_C2, 1);	//HOST_VBUS_DRV_5
-	gpio_direction_output(GPIO_BANK7 | GPIO_B6, 1);	//HOST_VBUS_DRV_6
-	gpio_direction_output(GPIO_BANK0 | GPIO_B6, 1);	//HOST_VBUS_DRV
+	gpio_direction_output(GPIO_BANK8 | GPIO_B1, 0);	//HOST_VBUS_DRV_3
+	gpio_direction_output(GPIO_BANK5 | GPIO_C2, 0);	//HOST_VBUS_DRV_5
+	gpio_direction_output(GPIO_BANK7 | GPIO_B6, 0);	//HOST_VBUS_DRV_6
+	gpio_direction_output(GPIO_BANK0 | GPIO_B6, 0);	//HOST_VBUS_DRV
 	gpio_direction_output(GPIO_BANK7 | GPIO_A4, 1);	//USB-HUB_EN
 	gpio_direction_output(GPIO_BANK7 | GPIO_B4, 1);	//5V-EN
 	gpio_direction_output(GPIO_BANK0 | GPIO_B5, 0);	//backlight-EN