diff options
Diffstat (limited to 'drivers/phy/phy-rcar-gen3-usb2.c')
| -rw-r--r-- | drivers/phy/phy-rcar-gen3-usb2.c | 83 |
1 files changed, 11 insertions, 72 deletions
diff --git a/drivers/phy/phy-rcar-gen3-usb2.c b/drivers/phy/phy-rcar-gen3-usb2.c index ef332ef..bc4f7dd 100644 --- a/drivers/phy/phy-rcar-gen3-usb2.c +++ b/drivers/phy/phy-rcar-gen3-usb2.c @@ -74,20 +74,6 @@ #define USB2_ADPCTRL_IDPULLUP BIT(5) /* 1 = ID sampling is enabled */ #define USB2_ADPCTRL_DRVVBUS BIT(4) -/******* HSUSB registers (original offset is +0x100) *******/ -#define HSUSB_LPSTS 0x02 -#define HSUSB_UGCTRL2 0x84 - -/* Low Power Status register (LPSTS) */ -#define HSUSB_LPSTS_SUSPM 0x4000 - -/* USB General control register 2 (UGCTRL2) */ -#define HSUSB_UGCTRL2_MASK 0x00000031 /* bit[31:6] should be 0 */ -#define HSUSB_UGCTRL2_USB0SEL 0x00000030 -#define HSUSB_UGCTRL2_USB0SEL_HOST 0x00000010 -#define HSUSB_UGCTRL2_USB0SEL_HS_USB 0x00000020 -#define HSUSB_UGCTRL2_USB0SEL_OTG 0x00000030 - struct rcar_gen3_data { void __iomem *base; struct clk *clk; @@ -95,8 +81,8 @@ struct rcar_gen3_data { struct rcar_gen3_chan { struct rcar_gen3_data usb2; - struct rcar_gen3_data hsusb; struct phy *phy; + bool has_otg; }; static void rcar_gen3_set_host_mode(struct rcar_gen3_chan *ch, int host) @@ -202,24 +188,15 @@ static int rcar_gen3_phy_usb2_init(struct phy *p) { struct rcar_gen3_chan *channel = phy_get_drvdata(p); void __iomem *usb2_base = channel->usb2.base; - void __iomem *hsusb_base = channel->hsusb.base; - u32 val; /* Initialize USB2 part */ writel(USB2_INT_ENABLE_INIT, usb2_base + USB2_INT_ENABLE); writel(USB2_SPD_RSM_TIMSET_INIT, usb2_base + USB2_SPD_RSM_TIMSET); writel(USB2_OC_TIMSET_INIT, usb2_base + USB2_OC_TIMSET); - /* Initialize HSUSB part */ - if (hsusb_base) { - val = readl(hsusb_base + HSUSB_UGCTRL2); - val = (val & ~HSUSB_UGCTRL2_USB0SEL) | - HSUSB_UGCTRL2_USB0SEL_OTG; - writel(val & HSUSB_UGCTRL2_MASK, hsusb_base + HSUSB_UGCTRL2); - - /* Initialize otg part */ + /* Initialize otg part */ + if (channel->has_otg) rcar_gen3_init_otg(channel); - } return 0; } @@ -237,7 +214,6 @@ static int rcar_gen3_phy_usb2_power_on(struct phy *p) { struct rcar_gen3_chan *channel = phy_get_drvdata(p); void __iomem *usb2_base = channel->usb2.base; - void __iomem *hsusb_base = channel->hsusb.base; u32 val; val = readl(usb2_base + USB2_USBCTR); @@ -246,33 +222,6 @@ static int rcar_gen3_phy_usb2_power_on(struct phy *p) val &= ~USB2_USBCTR_PLL_RST; writel(val, usb2_base + USB2_USBCTR); - /* - * TODO: To reduce power consuming, this driver should set the SUSPM - * after the PHY detects ID pin as peripheral. - */ - if (hsusb_base) { - /* Power on HSUSB PHY */ - val = readw(hsusb_base + HSUSB_LPSTS); - val |= HSUSB_LPSTS_SUSPM; - writew(val, hsusb_base + HSUSB_LPSTS); - } - - return 0; -} - -static int rcar_gen3_phy_usb2_power_off(struct phy *p) -{ - struct rcar_gen3_chan *channel = phy_get_drvdata(p); - void __iomem *hsusb_base = channel->hsusb.base; - u32 val; - - if (hsusb_base) { - /* Power off HSUSB PHY */ - val = readw(hsusb_base + HSUSB_LPSTS); - val &= ~HSUSB_LPSTS_SUSPM; - writew(val, hsusb_base + HSUSB_LPSTS); - } - return 0; } @@ -280,7 +229,6 @@ static struct phy_ops rcar_gen3_phy_usb2_ops = { .init = rcar_gen3_phy_usb2_init, .exit = rcar_gen3_phy_usb2_exit, .power_on = rcar_gen3_phy_usb2_power_on, - .power_off = rcar_gen3_phy_usb2_power_off, .owner = THIS_MODULE, }; @@ -313,6 +261,7 @@ static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev) struct rcar_gen3_chan *channel; struct phy_provider *provider; struct resource *res; + int irq; if (!dev->of_node) { dev_err(dev, "This driver needs device tree\n"); @@ -323,29 +272,19 @@ static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev) if (!channel) return -ENOMEM; - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "usb2_host"); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); channel->usb2.base = devm_ioremap_resource(dev, res); if (IS_ERR(channel->usb2.base)) return PTR_ERR(channel->usb2.base); - /* "hsusb" memory resource is optional */ - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hsusb"); - - /* To avoid error message by devm_ioremap_resource() */ - if (res) { - int irq; - - channel->hsusb.base = devm_ioremap_resource(dev, res); - if (IS_ERR(channel->hsusb.base)) - channel->hsusb.base = NULL; - /* call request_irq for OTG */ - irq = platform_get_irq(pdev, 0); - if (irq >= 0) - irq = devm_request_irq(dev, irq, rcar_gen3_phy_usb2_irq, - IRQF_SHARED, dev_name(dev), - channel); + /* call request_irq for OTG */ + irq = platform_get_irq(pdev, 0); + if (irq >= 0) { + irq = devm_request_irq(dev, irq, rcar_gen3_phy_usb2_irq, + IRQF_SHARED, dev_name(dev), channel); if (irq < 0) dev_err(dev, "No irq handler (%d)\n", irq); + channel->has_otg = true; } /* devm_phy_create() will call pm_runtime_enable(dev); */ |
