diff options
| author | Mark Kettenis <kettenis@openbsd.org> | 2019-06-30 18:01:55 +0200 |
|---|---|---|
| committer | Kever Yang <kever.yang@rock-chips.com> | 2019-07-19 11:11:09 +0800 |
| commit | 062790f461312f1b954ae876f85da8f6ce5fcc73 (patch) | |
| tree | 08387c88327ced8fc54ee35c88329dafc4bdebab /drivers/usb/host/xhci-dwc3.c | |
| parent | aaa8d6b1492297821c52bdc5074156a40198f300 (diff) | |
usb: xhci-dwc3: Add USB2 PHY configuration
Configure USB2 PHY register based on "phy_type" property and
handle all the quirks that are relevant for Rockchip RK3399 SoCs.
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Diffstat (limited to 'drivers/usb/host/xhci-dwc3.c')
| -rw-r--r-- | drivers/usb/host/xhci-dwc3.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-dwc3.c b/drivers/usb/host/xhci-dwc3.c index 83b9f119e7..9e8cae7ae4 100644 --- a/drivers/usb/host/xhci-dwc3.c +++ b/drivers/usb/host/xhci-dwc3.c @@ -118,6 +118,8 @@ static int xhci_dwc3_probe(struct udevice *dev) struct dwc3 *dwc3_reg; enum usb_dr_mode dr_mode; struct xhci_dwc3_platdata *plat = dev_get_platdata(dev); + const char *phy; + u32 reg; int ret; hccr = (struct xhci_hccr *)((uintptr_t)dev_read_addr(dev)); @@ -132,6 +134,24 @@ static int xhci_dwc3_probe(struct udevice *dev) dwc3_core_init(dwc3_reg); + /* Set dwc3 usb2 phy config */ + reg = readl(&dwc3_reg->g_usb2phycfg[0]); + + phy = dev_read_string(dev, "phy_type"); + if (phy && strcmp(phy, "utmi_wide") == 0) { + reg |= DWC3_GUSB2PHYCFG_PHYIF; + reg &= ~DWC3_GUSB2PHYCFG_USBTRDTIM_MASK; + reg |= DWC3_GUSB2PHYCFG_USBTRDTIM_16BIT; + } + + if (dev_read_bool(dev, "snps,dis_enblslpm-quirk")) + reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM; + + if (dev_read_bool(dev, "snps,dis-u2-freeclk-exists-quirk")) + reg &= ~DWC3_GUSB2PHYCFG_U2_FREECLK_EXISTS; + + writel(reg, &dwc3_reg->g_usb2phycfg[0]); + dr_mode = usb_get_dr_mode(dev_of_offset(dev)); if (dr_mode == USB_DR_MODE_UNKNOWN) /* by default set dual role mode to HOST */ |