diff options
| -rw-r--r-- | drivers/usb/dwc3/core.c | 65 | ||||
| -rw-r--r-- | drivers/usb/dwc3/core.h | 1 | ||||
| -rw-r--r-- | drivers/usb/dwc3/dwc3-generic.c | 6 |
3 files changed, 71 insertions, 1 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index bb3f9d2fc82..5fe5bfae0ed 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -888,6 +888,71 @@ int dwc3_shutdown_phy(struct udevice *dev, struct phy *usb_phys, int num_phys) #endif #if CONFIG_IS_ENABLED(DM_USB) +void dwc3_of_parse(struct dwc3 *dwc) +{ + const u8 *tmp; + struct udevice *dev = dwc->dev; + u8 lpm_nyet_threshold; + u8 tx_de_emphasis; + u8 hird_threshold; + + /* default to highest possible threshold */ + lpm_nyet_threshold = 0xff; + + /* default to -3.5dB de-emphasis */ + tx_de_emphasis = 1; + + /* + * default to assert utmi_sleep_n and use maximum allowed HIRD + * threshold value of 0b1100 + */ + hird_threshold = 12; + + dwc->has_lpm_erratum = dev_read_bool(dev, + "snps,has-lpm-erratum"); + tmp = dev_read_u8_array_ptr(dev, "snps,lpm-nyet-threshold", 1); + if (tmp) + lpm_nyet_threshold = *tmp; + + dwc->is_utmi_l1_suspend = dev_read_bool(dev, + "snps,is-utmi-l1-suspend"); + tmp = dev_read_u8_array_ptr(dev, "snps,hird-threshold", 1); + if (tmp) + hird_threshold = *tmp; + + dwc->disable_scramble_quirk = dev_read_bool(dev, + "snps,disable_scramble_quirk"); + dwc->u2exit_lfps_quirk = dev_read_bool(dev, + "snps,u2exit_lfps_quirk"); + dwc->u2ss_inp3_quirk = dev_read_bool(dev, + "snps,u2ss_inp3_quirk"); + dwc->req_p1p2p3_quirk = dev_read_bool(dev, + "snps,req_p1p2p3_quirk"); + dwc->del_p1p2p3_quirk = dev_read_bool(dev, + "snps,del_p1p2p3_quirk"); + dwc->del_phy_power_chg_quirk = dev_read_bool(dev, + "snps,del_phy_power_chg_quirk"); + dwc->lfps_filter_quirk = dev_read_bool(dev, + "snps,lfps_filter_quirk"); + dwc->rx_detect_poll_quirk = dev_read_bool(dev, + "snps,rx_detect_poll_quirk"); + dwc->dis_u3_susphy_quirk = dev_read_bool(dev, + "snps,dis_u3_susphy_quirk"); + dwc->dis_u2_susphy_quirk = dev_read_bool(dev, + "snps,dis_u2_susphy_quirk"); + dwc->tx_de_emphasis_quirk = dev_read_bool(dev, + "snps,tx_de_emphasis_quirk"); + tmp = dev_read_u8_array_ptr(dev, "snps,tx_de_emphasis", 1); + if (tmp) + tx_de_emphasis = *tmp; + + dwc->lpm_nyet_threshold = lpm_nyet_threshold; + dwc->tx_de_emphasis = tx_de_emphasis; + + dwc->hird_threshold = hird_threshold + | (dwc->is_utmi_l1_suspend << 4); +} + int dwc3_init(struct dwc3 *dwc) { int ret; diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 4c89dfcad98..be9672266a7 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -991,6 +991,7 @@ struct dwc3_gadget_ep_cmd_params { /* prototypes */ int dwc3_gadget_resize_tx_fifos(struct dwc3 *dwc); +void dwc3_of_parse(struct dwc3 *dwc); int dwc3_init(struct dwc3 *dwc); void dwc3_remove(struct dwc3 *dwc); diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c index a3b65088f17..023e95395be 100644 --- a/drivers/usb/dwc3/dwc3-generic.c +++ b/drivers/usb/dwc3/dwc3-generic.c @@ -48,8 +48,12 @@ static int dwc3_generic_probe(struct udevice *dev, struct dwc3_generic_plat *plat = dev_get_platdata(dev); struct dwc3 *dwc3 = &priv->dwc3; + dwc3->dev = dev; dwc3->maximum_speed = plat->maximum_speed; dwc3->dr_mode = plat->dr_mode; +#if CONFIG_IS_ENABLED(OF_CONTROL) + dwc3_of_parse(dwc3); +#endif rc = dwc3_setup_phy(dev, &priv->phys, &priv->num_phys); if (rc) @@ -57,7 +61,7 @@ static int dwc3_generic_probe(struct udevice *dev, priv->base = map_physmem(plat->base, DWC3_OTG_REGS_END, MAP_NOCACHE); dwc3->regs = priv->base + DWC3_GLOBALS_REGS_START; - dwc3->dev = dev; + rc = dwc3_init(dwc3); if (rc) { |