static int msm_usb_reset(struct usb_phy *phy) { struct msm_otg *motg = container_of(phy, struct msm_otg, phy); int ret; if (!IS_ERR(motg->core_clk)) clk_prepare_enable(motg->core_clk); ret = msm_link_reset(motg); if (ret) { dev_err(phy->dev, "phy_reset failed\n"); return ret; } ret = msm_otg_reset(&motg->phy); if (ret) { dev_err(phy->dev, "link reset failed\n"); return ret; } msleep(100); /* Reset USB PHY after performing USB Link RESET */ msm_phy_reset(motg); if (!IS_ERR(motg->core_clk)) clk_disable_unprepare(motg->core_clk); return 0; }
static int msm_phy_init(struct usb_phy *phy) { struct msm_otg *motg = container_of(phy, struct msm_otg, phy); struct msm_otg_platform_data *pdata = motg->pdata; u32 val, ulpi_val = 0; /* Program USB PHY Override registers. */ ulpi_init(motg); /* * It is recommended in HPG to reset USB PHY after programming * USB PHY Override registers. */ msm_phy_reset(motg); if (pdata->otg_control == OTG_PHY_CONTROL) { val = readl(USB_OTGSC); if (pdata->mode == USB_DR_MODE_OTG) { ulpi_val = ULPI_INT_IDGRD | ULPI_INT_SESS_VALID; val |= OTGSC_IDIE | OTGSC_BSVIE; } else if (pdata->mode == USB_DR_MODE_PERIPHERAL) { ulpi_val = ULPI_INT_SESS_VALID; val |= OTGSC_BSVIE; } writel(val, USB_OTGSC); ulpi_write(phy, ulpi_val, ULPI_USB_INT_EN_RISE); ulpi_write(phy, ulpi_val, ULPI_USB_INT_EN_FALL); } if (motg->phy_number) writel(readl(USB_PHY_CTRL2) | BIT(16), USB_PHY_CTRL2); return 0; }
static int msm_phy_init(struct usb_phy *phy) { struct msm_otg *motg = container_of(phy, struct msm_otg, phy); struct msm_otg_platform_data *pdata = motg->pdata; u32 val, ulpi_val = 0; /* Program USB PHY Override registers. */ ulpi_init(motg); /* * It is recommended in HPG to reset USB PHY after programming * USB PHY Override registers. */ msm_phy_reset(motg); if (pdata->otg_control == OTG_PHY_CONTROL) { val = readl(USB_OTGSC); if (pdata->mode == USB_DR_MODE_OTG) { ulpi_val = ULPI_INT_IDGRD | ULPI_INT_SESS_VALID; val |= OTGSC_IDIE | OTGSC_BSVIE; } else if (pdata->mode == USB_DR_MODE_PERIPHERAL) { ulpi_val = ULPI_INT_SESS_VALID; val |= OTGSC_BSVIE; } writel(val, USB_OTGSC); ulpi_write(phy, ulpi_val, ULPI_USB_INT_EN_RISE); ulpi_write(phy, ulpi_val, ULPI_USB_INT_EN_FALL); } if (motg->manual_pullup) { val = ULPI_MISC_A_VBUSVLDEXTSEL | ULPI_MISC_A_VBUSVLDEXT; ulpi_write(phy, val, ULPI_SET(ULPI_MISC_A)); val = readl(USB_GENCONFIG_2); val |= GENCONFIG_2_SESS_VLD_CTRL_EN; writel(val, USB_GENCONFIG_2); val = readl(USB_USBCMD); val |= USBCMD_SESS_VLD_CTRL; writel(val, USB_USBCMD); val = ulpi_read(phy, ULPI_FUNC_CTRL); val &= ~ULPI_FUNC_CTRL_OPMODE_MASK; val |= ULPI_FUNC_CTRL_OPMODE_NORMAL; ulpi_write(phy, val, ULPI_FUNC_CTRL); } if (motg->phy_number) writel(readl(USB_PHY_CTRL2) | BIT(16), USB_PHY_CTRL2); return 0; }