usb: rk3368: set disconnect threshold to 625 mV

The disconnect threshold of 28nm usb phy from innosilicon is
imprecise, if the value set to 575 mV will trigger unnecessary
disconnect interrupt.

Change-Id: I63985fb9257a1142bdad476583c0c141de70618d
Signed-off-by: Yunzhi Li <lyz@rock-chips.com>

diff --git a/drivers/usb/dwc_otg_310/usbdev_rk3368.c b/drivers/usb/dwc_otg_310/usbdev_rk3368.c
index dd5771d228e00686182630741413172c661e608d..7af3c5488349270ec7143e4e56064becd0783215 100644 (file)
--- a/drivers/usb/dwc_otg_310/usbdev_rk3368.c
+++ b/drivers/usb/dwc_otg_310/usbdev_rk3368.c
@@ -23,8 +23,8 @@ static void usb20otg_hw_init(void)
        /* Turn off differential receiver in suspend mode */
        uoc_write(UOC_HIWORD_UPDATE(0, 1, 2), 0x798);
 
-       /* Set disconnect detection trigger point to 600mv */
-       uoc_write(UOC_HIWORD_UPDATE(0, 0xf, 11), 0x79c);
+       /* Set disconnect detection trigger point to 625mv */
+       uoc_write(UOC_HIWORD_UPDATE(0x9, 0xf, 11), 0x79c);
 
        /* other haredware init,include:
         * DRV_VBUS GPIO init */
@@ -220,8 +220,8 @@ static void usb20ehci_hw_init(void)
 {
        /* Turn off differential receiver in suspend mode */
        uoc_write(UOC_HIWORD_UPDATE(0, 1, 2), 0x7b8);
-       /* Set disconnect detection trigger point to 600mv */
-       uoc_write(UOC_HIWORD_UPDATE(1, 0xf, 11), 0x7bc);
+       /* Set disconnect detection trigger point to 625mv */
+       uoc_write(UOC_HIWORD_UPDATE(0x9, 0xf, 11), 0x7bc);
 
        /* other haredware init,include:
         * DRV_VBUS GPIO init */