From: wlf <wulf@rock-chips.com>
Date: Mon, 21 Oct 2013 02:03:41 +0000 (+0800)
Subject: USB: RK3188 Host2.0 and OTG controller disconnect threshold adjustment
X-Git-Tag: firefly_0821_release~6548
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2892f765f97440744e849f9ae1f5b7a8815ebdc5;p=firefly-linux-kernel-4.4.55.git

USB: RK3188 Host2.0 and OTG controller disconnect threshold adjustment
---

diff --git a/drivers/usb/dwc_otg/usbdev_rk30.c b/drivers/usb/dwc_otg/usbdev_rk30.c
index 462e5f4d716f..d7c21d0a7ae9 100755
--- a/drivers/usb/dwc_otg/usbdev_rk30.c
+++ b/drivers/usb/dwc_otg/usbdev_rk30.c
@@ -128,6 +128,8 @@ void usb20otg_hw_init(void)
         //usb phy enter usb mode
         unsigned int * otg_phy_con3 = (unsigned int*)(USBGRF_UOC0_CON0);
         *otg_phy_con3 = (0x0300 << 16);
+	//Disconnect Threshold Adjustment
+	*otg_phy_con3 = (0x07<<1)|((0x07<<1)<<16);	
 #endif    
         // other haredware init
 #if defined(CONFIG_ARCH_RK3066B) || defined(CONFIG_ARCH_RK3188)
@@ -321,6 +323,11 @@ static struct resource usb20_host_resource[] = {
 void usb20host_hw_init(void)
 {
     // usb phy config init
+#ifdef CONFIG_ARCH_RK3188
+    //Disconnect Threshold Adjustment
+    unsigned int * otg_phy_con1 = (unsigned int*)(USBGRF_UOC1_CON0);
+    *otg_phy_con1 = (0x07<<1)|((0x07<<1)<<16);
+#endif    
 
     // other haredware init
 #if defined(CONFIG_ARCH_RK3066B) || defined(CONFIG_ARCH_RK3188)