diff options
Diffstat (limited to 'drivers/usb/dwc3/core.c')
| -rw-r--r-- | drivers/usb/dwc3/core.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 6b02e12aad73..0de8968a2e97 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -438,6 +438,22 @@ static void dwc3_phy_setup(struct dwc3 *dwc) reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); + /* Select the HS PHY interface */ + switch (DWC3_GHWPARAMS3_HSPHY_IFC(dwc->hwparams.hwparams3)) { + case DWC3_GHWPARAMS3_HSPHY_IFC_UTMI_ULPI: + if (!strncmp(dwc->hsphy_interface, "utmi", 4)) { + reg &= ~DWC3_GUSB2PHYCFG_ULPI_UTMI; + } else if (!strncmp(dwc->hsphy_interface, "ulpi", 4)) { + reg |= DWC3_GUSB2PHYCFG_ULPI_UTMI; + } else { + dev_warn(dwc->dev, "HSPHY Interface not defined\n"); + break; + } + /* FALLTHROUGH */ + default: + break; + } + /* * Above 1.94a, it is recommended to set DWC3_GUSB2PHYCFG_SUSPHY to * '0' during coreConsultant configuration. So default value will @@ -844,6 +860,8 @@ static int dwc3_probe(struct platform_device *pdev) "snps,tx_de_emphasis_quirk"); of_property_read_u8(node, "snps,tx_de_emphasis", &tx_de_emphasis); + of_property_read_string(node, "snps,hsphy_interface", + &dwc->hsphy_interface); } else if (pdata) { dwc->maximum_speed = pdata->maximum_speed; dwc->has_lpm_erratum = pdata->has_lpm_erratum; @@ -871,6 +889,8 @@ static int dwc3_probe(struct platform_device *pdev) dwc->tx_de_emphasis_quirk = pdata->tx_de_emphasis_quirk; if (pdata->tx_de_emphasis) tx_de_emphasis = pdata->tx_de_emphasis; + + dwc->hsphy_interface = pdata->hsphy_interface; } /* default to superspeed if no maximum_speed passed */ |