diff options
| -rw-r--r-- | drivers/usb/dwc3/core.c | 20 | ||||
| -rw-r--r-- | drivers/usb/dwc3/core.h | 7 | ||||
| -rw-r--r-- | include/dwc3-uboot.h | 1 |
3 files changed, 28 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 83a0782adce..b399c9bea99 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -727,6 +727,7 @@ int dwc3_uboot_init(struct dwc3_device *dwc3_dev) dwc->dis_u3_susphy_quirk = dwc3_dev->dis_u3_susphy_quirk; dwc->dis_u2_susphy_quirk = dwc3_dev->dis_u2_susphy_quirk; dwc->dis_del_phy_power_chg_quirk = dwc3_dev->dis_del_phy_power_chg_quirk; + dwc->dis_tx_ipgap_linecheck_quirk = dwc3_dev->dis_tx_ipgap_linecheck_quirk; dwc->dis_enblslpm_quirk = dwc3_dev->dis_enblslpm_quirk; dwc->dis_u2_freeclk_exists_quirk = dwc3_dev->dis_u2_freeclk_exists_quirk; @@ -936,6 +937,8 @@ void dwc3_of_parse(struct dwc3 *dwc) "snps,dis_u2_susphy_quirk"); dwc->dis_del_phy_power_chg_quirk = dev_read_bool(dev, "snps,dis-del-phy-power-chg-quirk"); + dwc->dis_tx_ipgap_linecheck_quirk = dev_read_bool(dev, + "snps,dis-tx-ipgap-linecheck-quirk"); dwc->dis_enblslpm_quirk = dev_read_bool(dev, "snps,dis_enblslpm_quirk"); dwc->dis_u2_freeclk_exists_quirk = dev_read_bool(dev, @@ -956,6 +959,7 @@ void dwc3_of_parse(struct dwc3 *dwc) int dwc3_init(struct dwc3 *dwc) { int ret; + u32 reg; dwc3_cache_hwparams(dwc); @@ -977,6 +981,22 @@ int dwc3_init(struct dwc3 *dwc) goto event_fail; } + if (dwc->revision >= DWC3_REVISION_250A) { + reg = dwc3_readl(dwc->regs, DWC3_GUCTL1); + + /* + * Enable hardware control of sending remote wakeup + * in HS when the device is in the L1 state. + */ + if (dwc->revision >= DWC3_REVISION_290A) + reg |= DWC3_GUCTL1_DEV_L1_EXIT_BY_HW; + + if (dwc->dis_tx_ipgap_linecheck_quirk) + reg |= DWC3_GUCTL1_TX_IPGAP_LINECHECK_DIS; + + dwc3_writel(dwc->regs, DWC3_GUCTL1, reg); + } + ret = dwc3_core_init_mode(dwc); if (ret) goto mode_fail; diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index b00e4858552..ca72b490dfd 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -74,6 +74,7 @@ #define DWC3_GCTL 0xc110 #define DWC3_GEVTEN 0xc114 #define DWC3_GSTS 0xc118 +#define DWC3_GUCTL1 0xc11c #define DWC3_GSNPSID 0xc120 #define DWC3_GGPIO 0xc124 #define DWC3_GUID 0xc128 @@ -160,6 +161,10 @@ #define DWC3_GCTL_GBLHIBERNATIONEN (1 << 1) #define DWC3_GCTL_DSBLCLKGTNG (1 << 0) +/* Global User Control 1 Register */ +#define DWC3_GUCTL1_TX_IPGAP_LINECHECK_DIS BIT(28) +#define DWC3_GUCTL1_DEV_L1_EXIT_BY_HW BIT(24) + /* Global USB2 PHY Configuration Register */ #define DWC3_GUSB2PHYCFG_PHYSOFTRST (1 << 31) #define DWC3_GUSB2PHYCFG_U2_FREECLK_EXISTS (1 << 30) @@ -772,6 +777,7 @@ struct dwc3 { #define DWC3_REVISION_260A 0x5533260a #define DWC3_REVISION_270A 0x5533270a #define DWC3_REVISION_280A 0x5533280a +#define DWC3_REVISION_290A 0x5533290a enum dwc3_ep0_next ep0_next_event; enum dwc3_ep0_state ep0state; @@ -825,6 +831,7 @@ struct dwc3 { unsigned dis_u3_susphy_quirk:1; unsigned dis_u2_susphy_quirk:1; unsigned dis_del_phy_power_chg_quirk:1; + unsigned dis_tx_ipgap_linecheck_quirk:1; unsigned dis_enblslpm_quirk:1; unsigned dis_u2_freeclk_exists_quirk:1; diff --git a/include/dwc3-uboot.h b/include/dwc3-uboot.h index 193d225d31a..e08530ec4e5 100644 --- a/include/dwc3-uboot.h +++ b/include/dwc3-uboot.h @@ -34,6 +34,7 @@ struct dwc3_device { unsigned dis_u3_susphy_quirk; unsigned dis_u2_susphy_quirk; unsigned dis_del_phy_power_chg_quirk; + unsigned dis_tx_ipgap_linecheck_quirk; unsigned dis_enblslpm_quirk; unsigned dis_u2_freeclk_exists_quirk; unsigned tx_de_emphasis_quirk; |