diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/phy/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/usb/phy/phy-jz4770.c | 192 |
2 files changed, 163 insertions, 33 deletions
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig index 4b3fa78995cf..ef4787cd3d37 100644 --- a/drivers/usb/phy/Kconfig +++ b/drivers/usb/phy/Kconfig @@ -185,11 +185,11 @@ config USB_ULPI_VIEWPORT controllers with a viewport register (e.g. Chipidea/ARC controllers). config JZ4770_PHY - tristate "Ingenic JZ4770 Transceiver Driver" + tristate "Ingenic SoCs Transceiver Driver" depends on MIPS || COMPILE_TEST select USB_PHY help This driver provides PHY support for the USB controller found - on the JZ4770 SoC from Ingenic. + on the JZ-series and X-series SoCs from Ingenic. endmenu diff --git a/drivers/usb/phy/phy-jz4770.c b/drivers/usb/phy/phy-jz4770.c index 00209d5469d3..5ddf48f9085a 100644 --- a/drivers/usb/phy/phy-jz4770.c +++ b/drivers/usb/phy/phy-jz4770.c @@ -1,7 +1,9 @@ // SPDX-License-Identifier: GPL-2.0 /* - * Ingenic JZ4770 USB PHY driver + * Ingenic SoCs USB PHY driver * Copyright (c) Paul Cercueil <paul@crapouillou.net> + * Copyright (c) 漆鹏振 (Qi Pengzhen) <aric.pzqi@ingenic.com> + * Copyright (c) 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com> */ #include <linux/clk.h> @@ -12,12 +14,13 @@ #include <linux/usb/otg.h> #include <linux/usb/phy.h> +/* OTGPHY register offsets */ #define REG_USBPCR_OFFSET 0x00 #define REG_USBRDT_OFFSET 0x04 #define REG_USBVBFIL_OFFSET 0x08 #define REG_USBPCR1_OFFSET 0x0c -/* USBPCR */ +/* bits within the USBPCR register */ #define USBPCR_USB_MODE BIT(31) #define USBPCR_AVLD_REG BIT(30) #define USBPCR_COMMONONN BIT(25) @@ -44,11 +47,21 @@ #define USBPCR_SQRXTUNE_LSB 11 #define USBPCR_SQRXTUNE_MASK GENMASK(13, USBPCR_SQRXTUNE_LSB) +#define USBPCR_SQRXTUNE_DCR_20PCT (0x7 << USBPCR_SQRXTUNE_LSB) #define USBPCR_SQRXTUNE_DFT (0x3 << USBPCR_SQRXTUNE_LSB) #define USBPCR_TXFSLSTUNE_LSB 7 #define USBPCR_TXFSLSTUNE_MASK GENMASK(10, USBPCR_TXFSLSTUNE_LSB) +#define USBPCR_TXFSLSTUNE_DCR_50PPT (0xf << USBPCR_TXFSLSTUNE_LSB) +#define USBPCR_TXFSLSTUNE_DCR_25PPT (0x7 << USBPCR_TXFSLSTUNE_LSB) #define USBPCR_TXFSLSTUNE_DFT (0x3 << USBPCR_TXFSLSTUNE_LSB) +#define USBPCR_TXFSLSTUNE_INC_25PPT (0x1 << USBPCR_TXFSLSTUNE_LSB) +#define USBPCR_TXFSLSTUNE_INC_50PPT (0x0 << USBPCR_TXFSLSTUNE_LSB) + +#define USBPCR_TXHSXVTUNE_LSB 4 +#define USBPCR_TXHSXVTUNE_MASK GENMASK(5, USBPCR_TXHSXVTUNE_LSB) +#define USBPCR_TXHSXVTUNE_DFT (0x3 << USBPCR_TXHSXVTUNE_LSB) +#define USBPCR_TXHSXVTUNE_DCR_15MV (0x1 << USBPCR_TXHSXVTUNE_LSB) #define USBPCR_TXRISETUNE_LSB 4 #define USBPCR_TXRISETUNE_MASK GENMASK(5, USBPCR_TXRISETUNE_LSB) @@ -56,14 +69,40 @@ #define USBPCR_TXVREFTUNE_LSB 0 #define USBPCR_TXVREFTUNE_MASK GENMASK(3, USBPCR_TXVREFTUNE_LSB) +#define USBPCR_TXVREFTUNE_INC_25PPT (0x7 << USBPCR_TXVREFTUNE_LSB) #define USBPCR_TXVREFTUNE_DFT (0x5 << USBPCR_TXVREFTUNE_LSB) -/* USBRDT */ +/* bits within the USBRDTR register */ +#define USBRDT_UTMI_RST BIT(27) +#define USBRDT_HB_MASK BIT(26) #define USBRDT_VBFIL_LD_EN BIT(25) #define USBRDT_IDDIG_EN BIT(24) #define USBRDT_IDDIG_REG BIT(23) +#define USBRDT_VBFIL_EN BIT(2) + +/* bits within the USBPCR1 register */ +#define USBPCR1_BVLD_REG BIT(31) +#define USBPCR1_DPPD BIT(29) +#define USBPCR1_DMPD BIT(28) +#define USBPCR1_USB_SEL BIT(28) +#define USBPCR1_WORD_IF_16BIT BIT(19) + +enum ingenic_usb_phy_version { + ID_JZ4770, + ID_JZ4780, + ID_X1000, + ID_X1830, +}; + +struct ingenic_soc_info { + enum ingenic_usb_phy_version version; + + void (*usb_phy_init)(struct usb_phy *phy); +}; struct jz4770_phy { + const struct ingenic_soc_info *soc_info; + struct usb_phy phy; struct usb_otg otg; struct device *dev; @@ -82,12 +121,18 @@ static inline struct jz4770_phy *phy_to_jz4770_phy(struct usb_phy *phy) return container_of(phy, struct jz4770_phy, phy); } -static int jz4770_phy_set_peripheral(struct usb_otg *otg, +static int ingenic_usb_phy_set_peripheral(struct usb_otg *otg, struct usb_gadget *gadget) { struct jz4770_phy *priv = otg_to_jz4770_phy(otg); u32 reg; + if (priv->soc_info->version >= ID_X1000) { + reg = readl(priv->base + REG_USBPCR1_OFFSET); + reg |= USBPCR1_BVLD_REG; + writel(reg, priv->base + REG_USBPCR1_OFFSET); + } + reg = readl(priv->base + REG_USBPCR_OFFSET); reg &= ~USBPCR_USB_MODE; reg |= USBPCR_VBUSVLDEXT | USBPCR_VBUSVLDEXTSEL | USBPCR_OTG_DISABLE; @@ -96,7 +141,7 @@ static int jz4770_phy_set_peripheral(struct usb_otg *otg, return 0; } -static int jz4770_phy_set_host(struct usb_otg *otg, struct usb_bus *host) +static int ingenic_usb_phy_set_host(struct usb_otg *otg, struct usb_bus *host) { struct jz4770_phy *priv = otg_to_jz4770_phy(otg); u32 reg; @@ -109,7 +154,7 @@ static int jz4770_phy_set_host(struct usb_otg *otg, struct usb_bus *host) return 0; } -static int jz4770_phy_init(struct usb_phy *phy) +static int ingenic_usb_phy_init(struct usb_phy *phy) { struct jz4770_phy *priv = phy_to_jz4770_phy(phy); int err; @@ -127,11 +172,7 @@ static int jz4770_phy_init(struct usb_phy *phy) return err; } - reg = USBPCR_AVLD_REG | USBPCR_COMMONONN | USBPCR_IDPULLUP_ALWAYS | - USBPCR_COMPDISTUNE_DFT | USBPCR_OTGTUNE_DFT | USBPCR_SQRXTUNE_DFT | - USBPCR_TXFSLSTUNE_DFT | USBPCR_TXRISETUNE_DFT | USBPCR_TXVREFTUNE_DFT | - USBPCR_POR; - writel(reg, priv->base + REG_USBPCR_OFFSET); + priv->soc_info->usb_phy_init(phy); /* Wait for PHY to reset */ usleep_range(30, 300); @@ -141,7 +182,7 @@ static int jz4770_phy_init(struct usb_phy *phy) return 0; } -static void jz4770_phy_shutdown(struct usb_phy *phy) +static void ingenic_usb_phy_shutdown(struct usb_phy *phy) { struct jz4770_phy *priv = phy_to_jz4770_phy(phy); @@ -149,11 +190,100 @@ static void jz4770_phy_shutdown(struct usb_phy *phy) regulator_disable(priv->vcc_supply); } -static void jz4770_phy_remove(void *phy) +static void ingenic_usb_phy_remove(void *phy) { usb_remove_phy(phy); } +static void jz4770_usb_phy_init(struct usb_phy *phy) +{ + struct jz4770_phy *priv = phy_to_jz4770_phy(phy); + u32 reg; + + reg = USBPCR_AVLD_REG | USBPCR_COMMONONN | USBPCR_IDPULLUP_ALWAYS | + USBPCR_COMPDISTUNE_DFT | USBPCR_OTGTUNE_DFT | USBPCR_SQRXTUNE_DFT | + USBPCR_TXFSLSTUNE_DFT | USBPCR_TXRISETUNE_DFT | USBPCR_TXVREFTUNE_DFT | + USBPCR_POR; + writel(reg, priv->base + REG_USBPCR_OFFSET); +} + +static void jz4780_usb_phy_init(struct usb_phy *phy) +{ + struct jz4770_phy *priv = phy_to_jz4770_phy(phy); + u32 reg; + + reg = readl(priv->base + REG_USBPCR1_OFFSET) | USBPCR1_USB_SEL | + USBPCR1_WORD_IF_16BIT; + writel(reg, priv->base + REG_USBPCR1_OFFSET); + + reg = USBPCR_TXPREEMPHTUNE | USBPCR_COMMONONN | USBPCR_POR; + writel(reg, priv->base + REG_USBPCR_OFFSET); +} + +static void x1000_usb_phy_init(struct usb_phy *phy) +{ + struct jz4770_phy *priv = phy_to_jz4770_phy(phy); + u32 reg; + + reg = readl(priv->base + REG_USBPCR1_OFFSET) | USBPCR1_WORD_IF_16BIT; + writel(reg, priv->base + REG_USBPCR1_OFFSET); + + reg = USBPCR_SQRXTUNE_DCR_20PCT | USBPCR_TXPREEMPHTUNE | + USBPCR_TXHSXVTUNE_DCR_15MV | USBPCR_TXVREFTUNE_INC_25PPT | + USBPCR_COMMONONN | USBPCR_POR; + writel(reg, priv->base + REG_USBPCR_OFFSET); +} + +static void x1830_usb_phy_init(struct usb_phy *phy) +{ + struct jz4770_phy *priv = phy_to_jz4770_phy(phy); + u32 reg; + + /* rdt */ + writel(USBRDT_VBFIL_EN | USBRDT_UTMI_RST, priv->base + REG_USBRDT_OFFSET); + + reg = readl(priv->base + REG_USBPCR1_OFFSET) | USBPCR1_WORD_IF_16BIT | + USBPCR1_DMPD | USBPCR1_DPPD; + writel(reg, priv->base + REG_USBPCR1_OFFSET); + + reg = USBPCR_IDPULLUP_OTG | USBPCR_VBUSVLDEXT | USBPCR_TXPREEMPHTUNE | + USBPCR_COMMONONN | USBPCR_POR; + writel(reg, priv->base + REG_USBPCR_OFFSET); +} + +static const struct ingenic_soc_info jz4770_soc_info = { + .version = ID_JZ4770, + + .usb_phy_init = jz4770_usb_phy_init, +}; + +static const struct ingenic_soc_info jz4780_soc_info = { + .version = ID_JZ4780, + + .usb_phy_init = jz4780_usb_phy_init, +}; + +static const struct ingenic_soc_info x1000_soc_info = { + .version = ID_X1000, + + .usb_phy_init = x1000_usb_phy_init, +}; + +static const struct ingenic_soc_info x1830_soc_info = { + .version = ID_X1830, + + .usb_phy_init = x1830_usb_phy_init, +}; + +static const struct of_device_id ingenic_usb_phy_of_matches[] = { + { .compatible = "ingenic,jz4770-phy", .data = &jz4770_soc_info }, + { .compatible = "ingenic,jz4780-phy", .data = &jz4780_soc_info }, + { .compatible = "ingenic,x1000-phy", .data = &x1000_soc_info }, + { .compatible = "ingenic,x1830-phy", .data = &x1830_soc_info }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, ingenic_usb_phy_of_matches); + static int jz4770_phy_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -164,18 +294,24 @@ static int jz4770_phy_probe(struct platform_device *pdev) if (!priv) return -ENOMEM; + priv->soc_info = device_get_match_data(&pdev->dev); + if (!priv->soc_info) { + dev_err(&pdev->dev, "Error: No device match found\n"); + return -ENODEV; + } + platform_set_drvdata(pdev, priv); priv->dev = dev; priv->phy.dev = dev; priv->phy.otg = &priv->otg; - priv->phy.label = "jz4770-phy"; - priv->phy.init = jz4770_phy_init; - priv->phy.shutdown = jz4770_phy_shutdown; + priv->phy.label = "ingenic-usb-phy"; + priv->phy.init = ingenic_usb_phy_init; + priv->phy.shutdown = ingenic_usb_phy_shutdown; priv->otg.state = OTG_STATE_UNDEFINED; priv->otg.usb_phy = &priv->phy; - priv->otg.set_host = jz4770_phy_set_host; - priv->otg.set_peripheral = jz4770_phy_set_peripheral; + priv->otg.set_host = ingenic_usb_phy_set_host; + priv->otg.set_peripheral = ingenic_usb_phy_set_peripheral; priv->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(priv->base)) { @@ -206,26 +342,20 @@ static int jz4770_phy_probe(struct platform_device *pdev) return err; } - return devm_add_action_or_reset(dev, jz4770_phy_remove, &priv->phy); + return devm_add_action_or_reset(dev, ingenic_usb_phy_remove, &priv->phy); } -#ifdef CONFIG_OF -static const struct of_device_id jz4770_phy_of_matches[] = { - { .compatible = "ingenic,jz4770-phy" }, - { } -}; -MODULE_DEVICE_TABLE(of, jz4770_phy_of_matches); -#endif - -static struct platform_driver jz4770_phy_driver = { +static struct platform_driver ingenic_phy_driver = { .probe = jz4770_phy_probe, .driver = { .name = "jz4770-phy", - .of_match_table = of_match_ptr(jz4770_phy_of_matches), + .of_match_table = of_match_ptr(ingenic_usb_phy_of_matches), }, }; -module_platform_driver(jz4770_phy_driver); +module_platform_driver(ingenic_phy_driver); +MODULE_AUTHOR("周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>"); +MODULE_AUTHOR("漆鹏振 (Qi Pengzhen) <aric.pzqi@ingenic.com>"); MODULE_AUTHOR("Paul Cercueil <paul@crapouillou.net>"); -MODULE_DESCRIPTION("Ingenic JZ4770 USB PHY driver"); +MODULE_DESCRIPTION("Ingenic SoCs USB PHY driver"); MODULE_LICENSE("GPL"); |