| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Peter Chen | 1344 | 23.94% | 14 | 24.56% |
| Li Jun | 1223 | 21.78% | 6 | 10.53% |
| Richard Zhao | 890 | 15.85% | 2 | 3.51% |
| Michael Grzeschik | 492 | 8.76% | 3 | 5.26% |
| Stefan Agner | 359 | 6.39% | 1 | 1.75% |
| Sascha Hauer | 291 | 5.18% | 1 | 1.75% |
| Denis Carikli | 272 | 4.84% | 1 | 1.75% |
| Fabien Lahoudere | 211 | 3.76% | 2 | 3.51% |
| Alexander Shiyan | 153 | 2.72% | 2 | 3.51% |
| Fabio Estevam | 141 | 2.51% | 5 | 8.77% |
| Uwe Kleine-König | 78 | 1.39% | 2 | 3.51% |
| Andrey Smirnov | 44 | 0.78% | 1 | 1.75% |
| Philipp Puschmann | 30 | 0.53% | 1 | 1.75% |
| Marc Kleine-Budde | 22 | 0.39% | 2 | 3.51% |
| Michael Trimarchi | 22 | 0.39% | 3 | 5.26% |
| Breno Lima | 14 | 0.25% | 1 | 1.75% |
| Thierry Reding | 9 | 0.16% | 1 | 1.75% |
| Arnaud Patard | 7 | 0.12% | 1 | 1.75% |
| Nicolas Adell | 5 | 0.09% | 1 | 1.75% |
| Greg Kroah-Hartman | 2 | 0.04% | 2 | 3.51% |
| Fengguang Wu | 2 | 0.04% | 1 | 1.75% |
| Philipp Zabel | 1 | 0.02% | 1 | 1.75% |
| Lee Jones | 1 | 0.02% | 1 | 1.75% |
| Marcus Folkesson | 1 | 0.02% | 1 | 1.75% |
| Alexander Shishkin | 1 | 0.02% | 1 | 1.75% |
| Total | 5615 | 57 |
// SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2012 Freescale Semiconductor, Inc. */ #include <linux/module.h> #include <linux/of_platform.h> #include <linux/err.h> #include <linux/io.h> #include <linux/delay.h> #include <linux/usb/otg.h> #include "ci_hdrc_imx.h" #define MX25_USB_PHY_CTRL_OFFSET 0x08 #define MX25_BM_EXTERNAL_VBUS_DIVIDER BIT(23) #define MX25_EHCI_INTERFACE_SINGLE_UNI (2 << 0) #define MX25_EHCI_INTERFACE_DIFF_UNI (0 << 0) #define MX25_EHCI_INTERFACE_MASK (0xf) #define MX25_OTG_SIC_SHIFT 29 #define MX25_OTG_SIC_MASK (0x3 << MX25_OTG_SIC_SHIFT) #define MX25_OTG_PM_BIT BIT(24) #define MX25_OTG_PP_BIT BIT(11) #define MX25_OTG_OCPOL_BIT BIT(3) #define MX25_H1_SIC_SHIFT 21 #define MX25_H1_SIC_MASK (0x3 << MX25_H1_SIC_SHIFT) #define MX25_H1_PP_BIT BIT(18) #define MX25_H1_PM_BIT BIT(16) #define MX25_H1_IPPUE_UP_BIT BIT(7) #define MX25_H1_IPPUE_DOWN_BIT BIT(6) #define MX25_H1_TLL_BIT BIT(5) #define MX25_H1_USBTE_BIT BIT(4) #define MX25_H1_OCPOL_BIT BIT(2) #define MX27_H1_PM_BIT BIT(8) #define MX27_H2_PM_BIT BIT(16) #define MX27_OTG_PM_BIT BIT(24) #define MX53_USB_OTG_PHY_CTRL_0_OFFSET 0x08 #define MX53_USB_OTG_PHY_CTRL_1_OFFSET 0x0c #define MX53_USB_CTRL_1_OFFSET 0x10 #define MX53_USB_CTRL_1_H2_XCVR_CLK_SEL_MASK (0x11 << 2) #define MX53_USB_CTRL_1_H2_XCVR_CLK_SEL_ULPI BIT(2) #define MX53_USB_CTRL_1_H3_XCVR_CLK_SEL_MASK (0x11 << 6) #define MX53_USB_CTRL_1_H3_XCVR_CLK_SEL_ULPI BIT(6) #define MX53_USB_UH2_CTRL_OFFSET 0x14 #define MX53_USB_UH3_CTRL_OFFSET 0x18 #define MX53_USB_CLKONOFF_CTRL_OFFSET 0x24 #define MX53_USB_CLKONOFF_CTRL_H2_INT60CKOFF BIT(21) #define MX53_USB_CLKONOFF_CTRL_H3_INT60CKOFF BIT(22) #define MX53_BM_OVER_CUR_DIS_H1 BIT(5) #define MX53_BM_OVER_CUR_DIS_OTG BIT(8) #define MX53_BM_OVER_CUR_DIS_UHx BIT(30) #define MX53_USB_CTRL_1_UH2_ULPI_EN BIT(26) #define MX53_USB_CTRL_1_UH3_ULPI_EN BIT(27) #define MX53_USB_UHx_CTRL_WAKE_UP_EN BIT(7) #define MX53_USB_UHx_CTRL_ULPI_INT_EN BIT(8) #define MX53_USB_PHYCTRL1_PLLDIV_MASK 0x3 #define MX53_USB_PLL_DIV_24_MHZ 0x01 #define MX6_BM_NON_BURST_SETTING BIT(1) #define MX6_BM_OVER_CUR_DIS BIT(7) #define MX6_BM_OVER_CUR_POLARITY BIT(8) #define MX6_BM_PWR_POLARITY BIT(9) #define MX6_BM_WAKEUP_ENABLE BIT(10) #define MX6_BM_UTMI_ON_CLOCK BIT(13) #define MX6_BM_ID_WAKEUP BIT(16) #define MX6_BM_VBUS_WAKEUP BIT(17) #define MX6SX_BM_DPDM_WAKEUP_EN BIT(29) #define MX6_BM_WAKEUP_INTR BIT(31) #define MX6_USB_HSIC_CTRL_OFFSET 0x10 /* Send resume signal without 480Mhz PHY clock */ #define MX6SX_BM_HSIC_AUTO_RESUME BIT(23) /* set before portsc.suspendM = 1 */ #define MX6_BM_HSIC_DEV_CONN BIT(21) /* HSIC enable */ #define MX6_BM_HSIC_EN BIT(12) /* Force HSIC module 480M clock on, even when in Host is in suspend mode */ #define MX6_BM_HSIC_CLK_ON BIT(11) #define MX6_USB_OTG1_PHY_CTRL 0x18 /* For imx6dql, it is host-only controller, for later imx6, it is otg's */ #define MX6_USB_OTG2_PHY_CTRL 0x1c #define MX6SX_USB_VBUS_WAKEUP_SOURCE(v) (v << 8) #define MX6SX_USB_VBUS_WAKEUP_SOURCE_VBUS MX6SX_USB_VBUS_WAKEUP_SOURCE(0) #define MX6SX_USB_VBUS_WAKEUP_SOURCE_AVALID MX6SX_USB_VBUS_WAKEUP_SOURCE(1) #define MX6SX_USB_VBUS_WAKEUP_SOURCE_BVALID MX6SX_USB_VBUS_WAKEUP_SOURCE(2) #define MX6SX_USB_VBUS_WAKEUP_SOURCE_SESS_END MX6SX_USB_VBUS_WAKEUP_SOURCE(3) #define VF610_OVER_CUR_DIS BIT(7) #define MX7D_USBNC_USB_CTRL2 0x4 #define MX7D_USB_VBUS_WAKEUP_SOURCE_MASK 0x3 #define MX7D_USB_VBUS_WAKEUP_SOURCE(v) (v << 0) #define MX7D_USB_VBUS_WAKEUP_SOURCE_VBUS MX7D_USB_VBUS_WAKEUP_SOURCE(0) #define MX7D_USB_VBUS_WAKEUP_SOURCE_AVALID MX7D_USB_VBUS_WAKEUP_SOURCE(1) #define MX7D_USB_VBUS_WAKEUP_SOURCE_BVALID MX7D_USB_VBUS_WAKEUP_SOURCE(2) #define MX7D_USB_VBUS_WAKEUP_SOURCE_SESS_END MX7D_USB_VBUS_WAKEUP_SOURCE(3) #define MX7D_USBNC_AUTO_RESUME BIT(2) /* The default DM/DP value is pull-down */ #define MX7D_USBNC_USB_CTRL2_OPMODE(v) (v << 6) #define MX7D_USBNC_USB_CTRL2_OPMODE_NON_DRIVING MX7D_USBNC_USB_CTRL2_OPMODE(1) #define MX7D_USBNC_USB_CTRL2_OPMODE_OVERRIDE_MASK (BIT(7) | BIT(6)) #define MX7D_USBNC_USB_CTRL2_OPMODE_OVERRIDE_EN BIT(8) #define MX7D_USBNC_USB_CTRL2_DP_OVERRIDE_VAL BIT(12) #define MX7D_USBNC_USB_CTRL2_DP_OVERRIDE_EN BIT(13) #define MX7D_USBNC_USB_CTRL2_DM_OVERRIDE_VAL BIT(14) #define MX7D_USBNC_USB_CTRL2_DM_OVERRIDE_EN BIT(15) #define MX7D_USBNC_USB_CTRL2_DP_DM_MASK (BIT(12) | BIT(13) | \ BIT(14) | BIT(15)) #define MX7D_USB_OTG_PHY_CFG1 0x30 #define MX7D_USB_OTG_PHY_CFG2_CHRG_CHRGSEL BIT(0) #define MX7D_USB_OTG_PHY_CFG2_CHRG_VDATDETENB0 BIT(1) #define MX7D_USB_OTG_PHY_CFG2_CHRG_VDATSRCENB0 BIT(2) #define MX7D_USB_OTG_PHY_CFG2_CHRG_DCDENB BIT(3) #define MX7D_USB_OTG_PHY_CFG2_DRVVBUS0 BIT(16) #define MX7D_USB_OTG_PHY_CFG2 0x34 #define MX7D_USB_OTG_PHY_STATUS 0x3c #define MX7D_USB_OTG_PHY_STATUS_LINE_STATE0 BIT(0) #define MX7D_USB_OTG_PHY_STATUS_LINE_STATE1 BIT(1) #define MX7D_USB_OTG_PHY_STATUS_VBUS_VLD BIT(3) #define MX7D_USB_OTG_PHY_STATUS_CHRGDET BIT(29) #define MX7D_USB_OTG_PHY_CFG1 0x30 #define TXPREEMPAMPTUNE0_BIT 28 #define TXPREEMPAMPTUNE0_MASK (3 << 28) #define TXVREFTUNE0_BIT 20 #define TXVREFTUNE0_MASK (0xf << 20) #define MX6_USB_OTG_WAKEUP_BITS (MX6_BM_WAKEUP_ENABLE | MX6_BM_VBUS_WAKEUP | \ MX6_BM_ID_WAKEUP) struct usbmisc_ops { /* It's called once when probe a usb device */ int (*init)(struct imx_usbmisc_data *data); /* It's called once after adding a usb device */ int (*post)(struct imx_usbmisc_data *data); /* It's called when we need to enable/disable usb wakeup */ int (*set_wakeup)(struct imx_usbmisc_data *data, bool enabled); /* It's called before setting portsc.suspendM */ int (*hsic_set_connect)(struct imx_usbmisc_data *data); /* It's called during suspend/resume */ int (*hsic_set_clk)(struct imx_usbmisc_data *data, bool enabled); /* usb charger detection */ int (*charger_detection)(struct imx_usbmisc_data *data); /* It's called when system resume from usb power lost */ int (*power_lost_check)(struct imx_usbmisc_data *data); }; struct imx_usbmisc { void __iomem *base; spinlock_t lock; const struct usbmisc_ops *ops; }; static inline bool is_imx53_usbmisc(struct imx_usbmisc_data *data); static int usbmisc_imx25_init(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); unsigned long flags; u32 val = 0; if (data->index > 1) return -EINVAL; spin_lock_irqsave(&usbmisc->lock, flags); switch (data->index) { case 0: val = readl(usbmisc->base); val &= ~(MX25_OTG_SIC_MASK | MX25_OTG_PP_BIT); val |= (MX25_EHCI_INTERFACE_DIFF_UNI & MX25_EHCI_INTERFACE_MASK) << MX25_OTG_SIC_SHIFT; val |= (MX25_OTG_PM_BIT | MX25_OTG_OCPOL_BIT); /* * If the polarity is not configured assume active high for * historical reasons. */ if (data->oc_pol_configured && data->oc_pol_active_low) val &= ~MX25_OTG_OCPOL_BIT; writel(val, usbmisc->base); break; case 1: val = readl(usbmisc->base); val &= ~(MX25_H1_SIC_MASK | MX25_H1_PP_BIT | MX25_H1_IPPUE_UP_BIT); val |= (MX25_EHCI_INTERFACE_SINGLE_UNI & MX25_EHCI_INTERFACE_MASK) << MX25_H1_SIC_SHIFT; val |= (MX25_H1_PM_BIT | MX25_H1_OCPOL_BIT | MX25_H1_TLL_BIT | MX25_H1_USBTE_BIT | MX25_H1_IPPUE_DOWN_BIT); /* * If the polarity is not configured assume active high for * historical reasons. */ if (data->oc_pol_configured && data->oc_pol_active_low) val &= ~MX25_H1_OCPOL_BIT; writel(val, usbmisc->base); break; } spin_unlock_irqrestore(&usbmisc->lock, flags); return 0; } static int usbmisc_imx25_post(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); void __iomem *reg; unsigned long flags; u32 val; if (data->index > 2) return -EINVAL; if (data->index) return 0; spin_lock_irqsave(&usbmisc->lock, flags); reg = usbmisc->base + MX25_USB_PHY_CTRL_OFFSET; val = readl(reg); if (data->evdo) val |= MX25_BM_EXTERNAL_VBUS_DIVIDER; else val &= ~MX25_BM_EXTERNAL_VBUS_DIVIDER; writel(val, reg); spin_unlock_irqrestore(&usbmisc->lock, flags); usleep_range(5000, 10000); /* needed to stabilize voltage */ return 0; } static int usbmisc_imx27_init(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); unsigned long flags; u32 val; switch (data->index) { case 0: val = MX27_OTG_PM_BIT; break; case 1: val = MX27_H1_PM_BIT; break; case 2: val = MX27_H2_PM_BIT; break; default: return -EINVAL; } spin_lock_irqsave(&usbmisc->lock, flags); if (data->disable_oc) val = readl(usbmisc->base) | val; else val = readl(usbmisc->base) & ~val; writel(val, usbmisc->base); spin_unlock_irqrestore(&usbmisc->lock, flags); return 0; } static int usbmisc_imx53_init(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); void __iomem *reg = NULL; unsigned long flags; u32 val = 0; if (data->index > 3) return -EINVAL; /* Select a 24 MHz reference clock for the PHY */ val = readl(usbmisc->base + MX53_USB_OTG_PHY_CTRL_1_OFFSET); val &= ~MX53_USB_PHYCTRL1_PLLDIV_MASK; val |= MX53_USB_PLL_DIV_24_MHZ; writel(val, usbmisc->base + MX53_USB_OTG_PHY_CTRL_1_OFFSET); spin_lock_irqsave(&usbmisc->lock, flags); switch (data->index) { case 0: if (data->disable_oc) { reg = usbmisc->base + MX53_USB_OTG_PHY_CTRL_0_OFFSET; val = readl(reg) | MX53_BM_OVER_CUR_DIS_OTG; writel(val, reg); } break; case 1: if (data->disable_oc) { reg = usbmisc->base + MX53_USB_OTG_PHY_CTRL_0_OFFSET; val = readl(reg) | MX53_BM_OVER_CUR_DIS_H1; writel(val, reg); } break; case 2: if (data->ulpi) { /* set USBH2 into ULPI-mode. */ reg = usbmisc->base + MX53_USB_CTRL_1_OFFSET; val = readl(reg) | MX53_USB_CTRL_1_UH2_ULPI_EN; /* select ULPI clock */ val &= ~MX53_USB_CTRL_1_H2_XCVR_CLK_SEL_MASK; val |= MX53_USB_CTRL_1_H2_XCVR_CLK_SEL_ULPI; writel(val, reg); /* Set interrupt wake up enable */ reg = usbmisc->base + MX53_USB_UH2_CTRL_OFFSET; val = readl(reg) | MX53_USB_UHx_CTRL_WAKE_UP_EN | MX53_USB_UHx_CTRL_ULPI_INT_EN; writel(val, reg); if (is_imx53_usbmisc(data)) { /* Disable internal 60Mhz clock */ reg = usbmisc->base + MX53_USB_CLKONOFF_CTRL_OFFSET; val = readl(reg) | MX53_USB_CLKONOFF_CTRL_H2_INT60CKOFF; writel(val, reg); } } if (data->disable_oc) { reg = usbmisc->base + MX53_USB_UH2_CTRL_OFFSET; val = readl(reg) | MX53_BM_OVER_CUR_DIS_UHx; writel(val, reg); } break; case 3: if (data->ulpi) { /* set USBH3 into ULPI-mode. */ reg = usbmisc->base + MX53_USB_CTRL_1_OFFSET; val = readl(reg) | MX53_USB_CTRL_1_UH3_ULPI_EN; /* select ULPI clock */ val &= ~MX53_USB_CTRL_1_H3_XCVR_CLK_SEL_MASK; val |= MX53_USB_CTRL_1_H3_XCVR_CLK_SEL_ULPI; writel(val, reg); /* Set interrupt wake up enable */ reg = usbmisc->base + MX53_USB_UH3_CTRL_OFFSET; val = readl(reg) | MX53_USB_UHx_CTRL_WAKE_UP_EN | MX53_USB_UHx_CTRL_ULPI_INT_EN; writel(val, reg); if (is_imx53_usbmisc(data)) { /* Disable internal 60Mhz clock */ reg = usbmisc->base + MX53_USB_CLKONOFF_CTRL_OFFSET; val = readl(reg) | MX53_USB_CLKONOFF_CTRL_H3_INT60CKOFF; writel(val, reg); } } if (data->disable_oc) { reg = usbmisc->base + MX53_USB_UH3_CTRL_OFFSET; val = readl(reg) | MX53_BM_OVER_CUR_DIS_UHx; writel(val, reg); } break; } spin_unlock_irqrestore(&usbmisc->lock, flags); return 0; } static u32 usbmisc_wakeup_setting(struct imx_usbmisc_data *data) { u32 wakeup_setting = MX6_USB_OTG_WAKEUP_BITS; if (data->ext_id || data->available_role != USB_DR_MODE_OTG) wakeup_setting &= ~MX6_BM_ID_WAKEUP; if (data->ext_vbus || data->available_role == USB_DR_MODE_HOST) wakeup_setting &= ~MX6_BM_VBUS_WAKEUP; return wakeup_setting; } static int usbmisc_imx6q_set_wakeup (struct imx_usbmisc_data *data, bool enabled) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); unsigned long flags; u32 val; int ret = 0; if (data->index > 3) return -EINVAL; spin_lock_irqsave(&usbmisc->lock, flags); val = readl(usbmisc->base + data->index * 4); if (enabled) { val &= ~MX6_USB_OTG_WAKEUP_BITS; val |= usbmisc_wakeup_setting(data); } else { if (val & MX6_BM_WAKEUP_INTR) pr_debug("wakeup int at ci_hdrc.%d\n", data->index); val &= ~MX6_USB_OTG_WAKEUP_BITS; } writel(val, usbmisc->base + data->index * 4); spin_unlock_irqrestore(&usbmisc->lock, flags); return ret; } static int usbmisc_imx6q_init(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); unsigned long flags; u32 reg; if (data->index > 3) return -EINVAL; spin_lock_irqsave(&usbmisc->lock, flags); reg = readl(usbmisc->base + data->index * 4); if (data->disable_oc) { reg |= MX6_BM_OVER_CUR_DIS; } else { reg &= ~MX6_BM_OVER_CUR_DIS; /* * If the polarity is not configured keep it as setup by the * bootloader. */ if (data->oc_pol_configured && data->oc_pol_active_low) reg |= MX6_BM_OVER_CUR_POLARITY; else if (data->oc_pol_configured) reg &= ~MX6_BM_OVER_CUR_POLARITY; } /* If the polarity is not set keep it as setup by the bootlader */ if (data->pwr_pol == 1) reg |= MX6_BM_PWR_POLARITY; writel(reg, usbmisc->base + data->index * 4); /* SoC non-burst setting */ reg = readl(usbmisc->base + data->index * 4); writel(reg | MX6_BM_NON_BURST_SETTING, usbmisc->base + data->index * 4); /* For HSIC controller */ if (data->hsic) { reg = readl(usbmisc->base + data->index * 4); writel(reg | MX6_BM_UTMI_ON_CLOCK, usbmisc->base + data->index * 4); reg = readl(usbmisc->base + MX6_USB_HSIC_CTRL_OFFSET + (data->index - 2) * 4); reg |= MX6_BM_HSIC_EN | MX6_BM_HSIC_CLK_ON; writel(reg, usbmisc->base + MX6_USB_HSIC_CTRL_OFFSET + (data->index - 2) * 4); } spin_unlock_irqrestore(&usbmisc->lock, flags); usbmisc_imx6q_set_wakeup(data, false); return 0; } static int usbmisc_imx6_hsic_get_reg_offset(struct imx_usbmisc_data *data) { int offset, ret = 0; if (data->index == 2 || data->index == 3) { offset = (data->index - 2) * 4; } else if (data->index == 0) { /* * For SoCs like i.MX7D and later, each USB controller has * its own non-core register region. For SoCs before i.MX7D, * the first two USB controllers are non-HSIC controllers. */ offset = 0; } else { dev_err(data->dev, "index is error for usbmisc\n"); ret = -EINVAL; } return ret ? ret : offset; } static int usbmisc_imx6_hsic_set_connect(struct imx_usbmisc_data *data) { unsigned long flags; u32 val; struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); int offset; spin_lock_irqsave(&usbmisc->lock, flags); offset = usbmisc_imx6_hsic_get_reg_offset(data); if (offset < 0) { spin_unlock_irqrestore(&usbmisc->lock, flags); return offset; } val = readl(usbmisc->base + MX6_USB_HSIC_CTRL_OFFSET + offset); if (!(val & MX6_BM_HSIC_DEV_CONN)) writel(val | MX6_BM_HSIC_DEV_CONN, usbmisc->base + MX6_USB_HSIC_CTRL_OFFSET + offset); spin_unlock_irqrestore(&usbmisc->lock, flags); return 0; } static int usbmisc_imx6_hsic_set_clk(struct imx_usbmisc_data *data, bool on) { unsigned long flags; u32 val; struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); int offset; spin_lock_irqsave(&usbmisc->lock, flags); offset = usbmisc_imx6_hsic_get_reg_offset(data); if (offset < 0) { spin_unlock_irqrestore(&usbmisc->lock, flags); return offset; } val = readl(usbmisc->base + MX6_USB_HSIC_CTRL_OFFSET + offset); val |= MX6_BM_HSIC_EN | MX6_BM_HSIC_CLK_ON; if (on) val |= MX6_BM_HSIC_CLK_ON; else val &= ~MX6_BM_HSIC_CLK_ON; writel(val, usbmisc->base + MX6_USB_HSIC_CTRL_OFFSET + offset); spin_unlock_irqrestore(&usbmisc->lock, flags); return 0; } static int usbmisc_imx6sx_init(struct imx_usbmisc_data *data) { void __iomem *reg = NULL; unsigned long flags; struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); u32 val; usbmisc_imx6q_init(data); if (data->index == 0 || data->index == 1) { reg = usbmisc->base + MX6_USB_OTG1_PHY_CTRL + data->index * 4; spin_lock_irqsave(&usbmisc->lock, flags); /* Set vbus wakeup source as bvalid */ val = readl(reg); writel(val | MX6SX_USB_VBUS_WAKEUP_SOURCE_BVALID, reg); /* * Disable dp/dm wakeup in device mode when vbus is * not there. */ val = readl(usbmisc->base + data->index * 4); writel(val & ~MX6SX_BM_DPDM_WAKEUP_EN, usbmisc->base + data->index * 4); spin_unlock_irqrestore(&usbmisc->lock, flags); } /* For HSIC controller */ if (data->hsic) { val = readl(usbmisc->base + MX6_USB_HSIC_CTRL_OFFSET); val |= MX6SX_BM_HSIC_AUTO_RESUME; writel(val, usbmisc->base + MX6_USB_HSIC_CTRL_OFFSET); } return 0; } static int usbmisc_vf610_init(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); u32 reg; /* * Vybrid only has one misc register set, but in two different * areas. These is reflected in two instances of this driver. */ if (data->index >= 1) return -EINVAL; if (data->disable_oc) { reg = readl(usbmisc->base); writel(reg | VF610_OVER_CUR_DIS, usbmisc->base); } return 0; } static int usbmisc_imx7d_set_wakeup (struct imx_usbmisc_data *data, bool enabled) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); unsigned long flags; u32 val; spin_lock_irqsave(&usbmisc->lock, flags); val = readl(usbmisc->base); if (enabled) { val &= ~MX6_USB_OTG_WAKEUP_BITS; val |= usbmisc_wakeup_setting(data); writel(val, usbmisc->base); } else { if (val & MX6_BM_WAKEUP_INTR) dev_dbg(data->dev, "wakeup int\n"); writel(val & ~MX6_USB_OTG_WAKEUP_BITS, usbmisc->base); } spin_unlock_irqrestore(&usbmisc->lock, flags); return 0; } static int usbmisc_imx7d_init(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); unsigned long flags; u32 reg; if (data->index >= 1) return -EINVAL; spin_lock_irqsave(&usbmisc->lock, flags); reg = readl(usbmisc->base); if (data->disable_oc) { reg |= MX6_BM_OVER_CUR_DIS; } else { reg &= ~MX6_BM_OVER_CUR_DIS; /* * If the polarity is not configured keep it as setup by the * bootloader. */ if (data->oc_pol_configured && data->oc_pol_active_low) reg |= MX6_BM_OVER_CUR_POLARITY; else if (data->oc_pol_configured) reg &= ~MX6_BM_OVER_CUR_POLARITY; } /* If the polarity is not set keep it as setup by the bootlader */ if (data->pwr_pol == 1) reg |= MX6_BM_PWR_POLARITY; writel(reg, usbmisc->base); /* SoC non-burst setting */ reg = readl(usbmisc->base); writel(reg | MX6_BM_NON_BURST_SETTING, usbmisc->base); if (!data->hsic) { reg = readl(usbmisc->base + MX7D_USBNC_USB_CTRL2); reg &= ~MX7D_USB_VBUS_WAKEUP_SOURCE_MASK; writel(reg | MX7D_USB_VBUS_WAKEUP_SOURCE_BVALID | MX7D_USBNC_AUTO_RESUME, usbmisc->base + MX7D_USBNC_USB_CTRL2); /* PHY tuning for signal quality */ reg = readl(usbmisc->base + MX7D_USB_OTG_PHY_CFG1); if (data->emp_curr_control && data->emp_curr_control <= (TXPREEMPAMPTUNE0_MASK >> TXPREEMPAMPTUNE0_BIT)) { reg &= ~TXPREEMPAMPTUNE0_MASK; reg |= (data->emp_curr_control << TXPREEMPAMPTUNE0_BIT); } if (data->dc_vol_level_adjust && data->dc_vol_level_adjust <= (TXVREFTUNE0_MASK >> TXVREFTUNE0_BIT)) { reg &= ~TXVREFTUNE0_MASK; reg |= (data->dc_vol_level_adjust << TXVREFTUNE0_BIT); } writel(reg, usbmisc->base + MX7D_USB_OTG_PHY_CFG1); } spin_unlock_irqrestore(&usbmisc->lock, flags); usbmisc_imx7d_set_wakeup(data, false); return 0; } static int imx7d_charger_secondary_detection(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); struct usb_phy *usb_phy = data->usb_phy; int val; unsigned long flags; /* Clear VDATSRCENB0 to disable VDP_SRC and IDM_SNK required by BC 1.2 spec */ spin_lock_irqsave(&usbmisc->lock, flags); val = readl(usbmisc->base + MX7D_USB_OTG_PHY_CFG2); val &= ~MX7D_USB_OTG_PHY_CFG2_CHRG_VDATSRCENB0; writel(val, usbmisc->base + MX7D_USB_OTG_PHY_CFG2); spin_unlock_irqrestore(&usbmisc->lock, flags); /* TVDMSRC_DIS */ msleep(20); /* VDM_SRC is connected to D- and IDP_SINK is connected to D+ */ spin_lock_irqsave(&usbmisc->lock, flags); val = readl(usbmisc->base + MX7D_USB_OTG_PHY_CFG2); writel(val | MX7D_USB_OTG_PHY_CFG2_CHRG_VDATSRCENB0 | MX7D_USB_OTG_PHY_CFG2_CHRG_VDATDETENB0 | MX7D_USB_OTG_PHY_CFG2_CHRG_CHRGSEL, usbmisc->base + MX7D_USB_OTG_PHY_CFG2); spin_unlock_irqrestore(&usbmisc->lock, flags); /* TVDMSRC_ON */ msleep(40); /* * Per BC 1.2, check voltage of D+: * DCP: if greater than VDAT_REF; * CDP: if less than VDAT_REF. */ val = readl(usbmisc->base + MX7D_USB_OTG_PHY_STATUS); if (val & MX7D_USB_OTG_PHY_STATUS_CHRGDET) { dev_dbg(data->dev, "It is a dedicate charging port\n"); usb_phy->chg_type = DCP_TYPE; } else { dev_dbg(data->dev, "It is a charging downstream port\n"); usb_phy->chg_type = CDP_TYPE; } return 0; } static void imx7_disable_charger_detector(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); unsigned long flags; u32 val; spin_lock_irqsave(&usbmisc->lock, flags); val = readl(usbmisc->base + MX7D_USB_OTG_PHY_CFG2); val &= ~(MX7D_USB_OTG_PHY_CFG2_CHRG_DCDENB | MX7D_USB_OTG_PHY_CFG2_CHRG_VDATSRCENB0 | MX7D_USB_OTG_PHY_CFG2_CHRG_VDATDETENB0 | MX7D_USB_OTG_PHY_CFG2_CHRG_CHRGSEL); writel(val, usbmisc->base + MX7D_USB_OTG_PHY_CFG2); /* Set OPMODE to be 2'b00 and disable its override */ val = readl(usbmisc->base + MX7D_USBNC_USB_CTRL2); val &= ~MX7D_USBNC_USB_CTRL2_OPMODE_OVERRIDE_MASK; writel(val, usbmisc->base + MX7D_USBNC_USB_CTRL2); val = readl(usbmisc->base + MX7D_USBNC_USB_CTRL2); writel(val & ~MX7D_USBNC_USB_CTRL2_OPMODE_OVERRIDE_EN, usbmisc->base + MX7D_USBNC_USB_CTRL2); spin_unlock_irqrestore(&usbmisc->lock, flags); } static int imx7d_charger_data_contact_detect(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); unsigned long flags; u32 val; int i, data_pin_contact_count = 0; /* Enable Data Contact Detect (DCD) per the USB BC 1.2 */ spin_lock_irqsave(&usbmisc->lock, flags); val = readl(usbmisc->base + MX7D_USB_OTG_PHY_CFG2); writel(val | MX7D_USB_OTG_PHY_CFG2_CHRG_DCDENB, usbmisc->base + MX7D_USB_OTG_PHY_CFG2); spin_unlock_irqrestore(&usbmisc->lock, flags); for (i = 0; i < 100; i = i + 1) { val = readl(usbmisc->base + MX7D_USB_OTG_PHY_STATUS); if (!(val & MX7D_USB_OTG_PHY_STATUS_LINE_STATE0)) { if (data_pin_contact_count++ > 5) /* Data pin makes contact */ break; usleep_range(5000, 10000); } else { data_pin_contact_count = 0; usleep_range(5000, 6000); } } /* Disable DCD after finished data contact check */ spin_lock_irqsave(&usbmisc->lock, flags); val = readl(usbmisc->base + MX7D_USB_OTG_PHY_CFG2); writel(val & ~MX7D_USB_OTG_PHY_CFG2_CHRG_DCDENB, usbmisc->base + MX7D_USB_OTG_PHY_CFG2); spin_unlock_irqrestore(&usbmisc->lock, flags); if (i == 100) { dev_err(data->dev, "VBUS is coming from a dedicated power supply.\n"); return -ENXIO; } return 0; } static int imx7d_charger_primary_detection(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); struct usb_phy *usb_phy = data->usb_phy; unsigned long flags; u32 val; /* VDP_SRC is connected to D+ and IDM_SINK is connected to D- */ spin_lock_irqsave(&usbmisc->lock, flags); val = readl(usbmisc->base + MX7D_USB_OTG_PHY_CFG2); val &= ~MX7D_USB_OTG_PHY_CFG2_CHRG_CHRGSEL; writel(val | MX7D_USB_OTG_PHY_CFG2_CHRG_VDATSRCENB0 | MX7D_USB_OTG_PHY_CFG2_CHRG_VDATDETENB0, usbmisc->base + MX7D_USB_OTG_PHY_CFG2); spin_unlock_irqrestore(&usbmisc->lock, flags); /* TVDPSRC_ON */ msleep(40); /* Check if D- is less than VDAT_REF to determine an SDP per BC 1.2 */ val = readl(usbmisc->base + MX7D_USB_OTG_PHY_STATUS); if (!(val & MX7D_USB_OTG_PHY_STATUS_CHRGDET)) { dev_dbg(data->dev, "It is a standard downstream port\n"); usb_phy->chg_type = SDP_TYPE; } return 0; } /* * Whole charger detection process: * 1. OPMODE override to be non-driving * 2. Data contact check * 3. Primary detection * 4. Secondary detection * 5. Disable charger detection */ static int imx7d_charger_detection(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); struct usb_phy *usb_phy = data->usb_phy; unsigned long flags; u32 val; int ret; /* Check if vbus is valid */ val = readl(usbmisc->base + MX7D_USB_OTG_PHY_STATUS); if (!(val & MX7D_USB_OTG_PHY_STATUS_VBUS_VLD)) { dev_err(data->dev, "vbus is error\n"); return -EINVAL; } /* * Keep OPMODE to be non-driving mode during the whole * charger detection process. */ spin_lock_irqsave(&usbmisc->lock, flags); val = readl(usbmisc->base + MX7D_USBNC_USB_CTRL2); val &= ~MX7D_USBNC_USB_CTRL2_OPMODE_OVERRIDE_MASK; val |= MX7D_USBNC_USB_CTRL2_OPMODE_NON_DRIVING; writel(val, usbmisc->base + MX7D_USBNC_USB_CTRL2); val = readl(usbmisc->base + MX7D_USBNC_USB_CTRL2); writel(val | MX7D_USBNC_USB_CTRL2_OPMODE_OVERRIDE_EN, usbmisc->base + MX7D_USBNC_USB_CTRL2); spin_unlock_irqrestore(&usbmisc->lock, flags); ret = imx7d_charger_data_contact_detect(data); if (ret) return ret; ret = imx7d_charger_primary_detection(data); if (!ret && usb_phy->chg_type != SDP_TYPE) ret = imx7d_charger_secondary_detection(data); imx7_disable_charger_detector(data); return ret; } static int usbmisc_imx7ulp_init(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); unsigned long flags; u32 reg; if (data->index >= 1) return -EINVAL; spin_lock_irqsave(&usbmisc->lock, flags); reg = readl(usbmisc->base); if (data->disable_oc) { reg |= MX6_BM_OVER_CUR_DIS; } else { reg &= ~MX6_BM_OVER_CUR_DIS; /* * If the polarity is not configured keep it as setup by the * bootloader. */ if (data->oc_pol_configured && data->oc_pol_active_low) reg |= MX6_BM_OVER_CUR_POLARITY; else if (data->oc_pol_configured) reg &= ~MX6_BM_OVER_CUR_POLARITY; } /* If the polarity is not set keep it as setup by the bootlader */ if (data->pwr_pol == 1) reg |= MX6_BM_PWR_POLARITY; writel(reg, usbmisc->base); /* SoC non-burst setting */ reg = readl(usbmisc->base); writel(reg | MX6_BM_NON_BURST_SETTING, usbmisc->base); if (data->hsic) { reg = readl(usbmisc->base); writel(reg | MX6_BM_UTMI_ON_CLOCK, usbmisc->base); reg = readl(usbmisc->base + MX6_USB_HSIC_CTRL_OFFSET); reg |= MX6_BM_HSIC_EN | MX6_BM_HSIC_CLK_ON; writel(reg, usbmisc->base + MX6_USB_HSIC_CTRL_OFFSET); /* * For non-HSIC controller, the autoresume is enabled * at MXS PHY driver (usbphy_ctrl bit18). */ reg = readl(usbmisc->base + MX7D_USBNC_USB_CTRL2); writel(reg | MX7D_USBNC_AUTO_RESUME, usbmisc->base + MX7D_USBNC_USB_CTRL2); } else { reg = readl(usbmisc->base + MX7D_USBNC_USB_CTRL2); reg &= ~MX7D_USB_VBUS_WAKEUP_SOURCE_MASK; writel(reg | MX7D_USB_VBUS_WAKEUP_SOURCE_BVALID, usbmisc->base + MX7D_USBNC_USB_CTRL2); } spin_unlock_irqrestore(&usbmisc->lock, flags); usbmisc_imx7d_set_wakeup(data, false); return 0; } static int usbmisc_imx7d_power_lost_check(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); unsigned long flags; u32 val; spin_lock_irqsave(&usbmisc->lock, flags); val = readl(usbmisc->base); spin_unlock_irqrestore(&usbmisc->lock, flags); /* * Here use a power on reset value to judge * if the controller experienced a power lost */ if (val == 0x30001000) return 1; else return 0; } static int usbmisc_imx6sx_power_lost_check(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); unsigned long flags; u32 val; spin_lock_irqsave(&usbmisc->lock, flags); val = readl(usbmisc->base + data->index * 4); spin_unlock_irqrestore(&usbmisc->lock, flags); /* * Here use a power on reset value to judge * if the controller experienced a power lost */ if (val == 0x30001000) return 1; else return 0; } static const struct usbmisc_ops imx25_usbmisc_ops = { .init = usbmisc_imx25_init, .post = usbmisc_imx25_post, }; static const struct usbmisc_ops imx27_usbmisc_ops = { .init = usbmisc_imx27_init, }; static const struct usbmisc_ops imx51_usbmisc_ops = { .init = usbmisc_imx53_init, }; static const struct usbmisc_ops imx53_usbmisc_ops = { .init = usbmisc_imx53_init, }; static const struct usbmisc_ops imx6q_usbmisc_ops = { .set_wakeup = usbmisc_imx6q_set_wakeup, .init = usbmisc_imx6q_init, .hsic_set_connect = usbmisc_imx6_hsic_set_connect, .hsic_set_clk = usbmisc_imx6_hsic_set_clk, }; static const struct usbmisc_ops vf610_usbmisc_ops = { .init = usbmisc_vf610_init, }; static const struct usbmisc_ops imx6sx_usbmisc_ops = { .set_wakeup = usbmisc_imx6q_set_wakeup, .init = usbmisc_imx6sx_init, .hsic_set_connect = usbmisc_imx6_hsic_set_connect, .hsic_set_clk = usbmisc_imx6_hsic_set_clk, .power_lost_check = usbmisc_imx6sx_power_lost_check, }; static const struct usbmisc_ops imx7d_usbmisc_ops = { .init = usbmisc_imx7d_init, .set_wakeup = usbmisc_imx7d_set_wakeup, .charger_detection = imx7d_charger_detection, .power_lost_check = usbmisc_imx7d_power_lost_check, }; static const struct usbmisc_ops imx7ulp_usbmisc_ops = { .init = usbmisc_imx7ulp_init, .set_wakeup = usbmisc_imx7d_set_wakeup, .hsic_set_connect = usbmisc_imx6_hsic_set_connect, .hsic_set_clk = usbmisc_imx6_hsic_set_clk, .power_lost_check = usbmisc_imx7d_power_lost_check, }; static inline bool is_imx53_usbmisc(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); return usbmisc->ops == &imx53_usbmisc_ops; } int imx_usbmisc_init(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc; if (!data) return 0; usbmisc = dev_get_drvdata(data->dev); if (!usbmisc->ops->init) return 0; return usbmisc->ops->init(data); } EXPORT_SYMBOL_GPL(imx_usbmisc_init); int imx_usbmisc_init_post(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc; int ret = 0; if (!data) return 0; usbmisc = dev_get_drvdata(data->dev); if (usbmisc->ops->post) ret = usbmisc->ops->post(data); if (ret) { dev_err(data->dev, "post init failed, ret=%d\n", ret); return ret; } if (usbmisc->ops->set_wakeup) ret = usbmisc->ops->set_wakeup(data, false); if (ret) { dev_err(data->dev, "set_wakeup failed, ret=%d\n", ret); return ret; } return 0; } EXPORT_SYMBOL_GPL(imx_usbmisc_init_post); int imx_usbmisc_hsic_set_connect(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc; if (!data) return 0; usbmisc = dev_get_drvdata(data->dev); if (!usbmisc->ops->hsic_set_connect || !data->hsic) return 0; return usbmisc->ops->hsic_set_connect(data); } EXPORT_SYMBOL_GPL(imx_usbmisc_hsic_set_connect); int imx_usbmisc_charger_detection(struct imx_usbmisc_data *data, bool connect) { struct imx_usbmisc *usbmisc; struct usb_phy *usb_phy; int ret = 0; if (!data) return -EINVAL; usbmisc = dev_get_drvdata(data->dev); usb_phy = data->usb_phy; if (!usbmisc->ops->charger_detection) return -ENOTSUPP; if (connect) { ret = usbmisc->ops->charger_detection(data); if (ret) { dev_err(data->dev, "Error occurs during detection: %d\n", ret); usb_phy->chg_state = USB_CHARGER_ABSENT; } else { usb_phy->chg_state = USB_CHARGER_PRESENT; } } else { usb_phy->chg_state = USB_CHARGER_ABSENT; usb_phy->chg_type = UNKNOWN_TYPE; } return ret; } EXPORT_SYMBOL_GPL(imx_usbmisc_charger_detection); int imx_usbmisc_suspend(struct imx_usbmisc_data *data, bool wakeup) { struct imx_usbmisc *usbmisc; int ret = 0; if (!data) return 0; usbmisc = dev_get_drvdata(data->dev); if (wakeup && usbmisc->ops->set_wakeup) ret = usbmisc->ops->set_wakeup(data, true); if (ret) { dev_err(data->dev, "set_wakeup failed, ret=%d\n", ret); return ret; } if (usbmisc->ops->hsic_set_clk && data->hsic) ret = usbmisc->ops->hsic_set_clk(data, false); if (ret) { dev_err(data->dev, "set_wakeup failed, ret=%d\n", ret); return ret; } return ret; } EXPORT_SYMBOL_GPL(imx_usbmisc_suspend); int imx_usbmisc_resume(struct imx_usbmisc_data *data, bool wakeup) { struct imx_usbmisc *usbmisc; int ret = 0; if (!data) return 0; usbmisc = dev_get_drvdata(data->dev); if (usbmisc->ops->power_lost_check) ret = usbmisc->ops->power_lost_check(data); if (ret > 0) { /* re-init if resume from power lost */ ret = imx_usbmisc_init(data); if (ret) { dev_err(data->dev, "re-init failed, ret=%d\n", ret); return ret; } } if (wakeup && usbmisc->ops->set_wakeup) ret = usbmisc->ops->set_wakeup(data, false); if (ret) { dev_err(data->dev, "set_wakeup failed, ret=%d\n", ret); return ret; } if (usbmisc->ops->hsic_set_clk && data->hsic) ret = usbmisc->ops->hsic_set_clk(data, true); if (ret) { dev_err(data->dev, "set_wakeup failed, ret=%d\n", ret); goto hsic_set_clk_fail; } return 0; hsic_set_clk_fail: if (wakeup && usbmisc->ops->set_wakeup) usbmisc->ops->set_wakeup(data, true); return ret; } EXPORT_SYMBOL_GPL(imx_usbmisc_resume); static const struct of_device_id usbmisc_imx_dt_ids[] = { { .compatible = "fsl,imx25-usbmisc", .data = &imx25_usbmisc_ops, }, { .compatible = "fsl,imx35-usbmisc", .data = &imx25_usbmisc_ops, }, { .compatible = "fsl,imx27-usbmisc", .data = &imx27_usbmisc_ops, }, { .compatible = "fsl,imx51-usbmisc", .data = &imx51_usbmisc_ops, }, { .compatible = "fsl,imx53-usbmisc", .data = &imx53_usbmisc_ops, }, { .compatible = "fsl,imx6q-usbmisc", .data = &imx6q_usbmisc_ops, }, { .compatible = "fsl,vf610-usbmisc", .data = &vf610_usbmisc_ops, }, { .compatible = "fsl,imx6sx-usbmisc", .data = &imx6sx_usbmisc_ops, }, { .compatible = "fsl,imx6ul-usbmisc", .data = &imx6sx_usbmisc_ops, }, { .compatible = "fsl,imx7d-usbmisc", .data = &imx7d_usbmisc_ops, }, { .compatible = "fsl,imx7ulp-usbmisc", .data = &imx7ulp_usbmisc_ops, }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, usbmisc_imx_dt_ids); static int usbmisc_imx_probe(struct platform_device *pdev) { struct imx_usbmisc *data; data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; spin_lock_init(&data->lock); data->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(data->base)) return PTR_ERR(data->base); data->ops = of_device_get_match_data(&pdev->dev); platform_set_drvdata(pdev, data); return 0; } static struct platform_driver usbmisc_imx_driver = { .probe = usbmisc_imx_probe, .driver = { .name = "usbmisc_imx", .of_match_table = usbmisc_imx_dt_ids, }, }; module_platform_driver(usbmisc_imx_driver); MODULE_ALIAS("platform:usbmisc-imx"); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("driver for imx usb non-core registers"); MODULE_AUTHOR("Richard Zhao <richard.zhao@freescale.com>");
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