diff options
Diffstat (limited to 'drivers/usb/host/ehci-fsl.c')
| -rw-r--r-- | drivers/usb/host/ehci-fsl.c | 99 |
1 files changed, 71 insertions, 28 deletions
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 8600317bd60b..86e42892016d 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -116,13 +116,33 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, goto err3; } - /* Enable USB controller */ - temp = in_be32(hcd->regs + 0x500); - out_be32(hcd->regs + 0x500, temp | 0x4); + pdata->regs = hcd->regs; - /* Set to Host mode */ - temp = in_le32(hcd->regs + 0x1a8); - out_le32(hcd->regs + 0x1a8, temp | 0x3); + /* + * do platform specific init: check the clock, grab/config pins, etc. + */ + if (pdata->init && pdata->init(pdev)) { + retval = -ENODEV; + goto err3; + } + + /* + * Check if it is MPC5121 SoC, otherwise set pdata->have_sysif_regs + * flag for 83xx or 8536 system interface registers. + */ + if (pdata->big_endian_mmio) + temp = in_be32(hcd->regs + FSL_SOC_USB_ID); + else + temp = in_le32(hcd->regs + FSL_SOC_USB_ID); + + if ((temp & ID_MSK) != (~((temp & NID_MSK) >> 8) & ID_MSK)) + pdata->have_sysif_regs = 1; + + /* Enable USB controller, 83xx or 8536 */ + if (pdata->have_sysif_regs) + setbits32(hcd->regs + FSL_SOC_USB_CTRL, 0x4); + + /* Don't need to set host mode here. It will be done by tdi_reset() */ retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED); if (retval != 0) @@ -137,6 +157,8 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, usb_put_hcd(hcd); err1: dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev), retval); + if (pdata->exit) + pdata->exit(pdev); return retval; } @@ -154,17 +176,30 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, static void usb_hcd_fsl_remove(struct usb_hcd *hcd, struct platform_device *pdev) { + struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data; + usb_remove_hcd(hcd); + + /* + * do platform specific un-initialization: + * release iomux pins, disable clock, etc. + */ + if (pdata->exit) + pdata->exit(pdev); iounmap(hcd->regs); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); } -static void mpc83xx_setup_phy(struct ehci_hcd *ehci, - enum fsl_usb2_phy_modes phy_mode, - unsigned int port_offset) +static void ehci_fsl_setup_phy(struct ehci_hcd *ehci, + enum fsl_usb2_phy_modes phy_mode, + unsigned int port_offset) { - u32 portsc = 0; + u32 portsc; + + portsc = ehci_readl(ehci, &ehci->regs->port_status[port_offset]); + portsc &= ~(PORT_PTS_MSK | PORT_PTS_PTW); + switch (phy_mode) { case FSL_USB2_PHY_ULPI: portsc |= PORT_PTS_ULPI; @@ -184,20 +219,21 @@ static void mpc83xx_setup_phy(struct ehci_hcd *ehci, ehci_writel(ehci, portsc, &ehci->regs->port_status[port_offset]); } -static void mpc83xx_usb_setup(struct usb_hcd *hcd) +static void ehci_fsl_usb_setup(struct ehci_hcd *ehci) { - struct ehci_hcd *ehci = hcd_to_ehci(hcd); + struct usb_hcd *hcd = ehci_to_hcd(ehci); struct fsl_usb2_platform_data *pdata; void __iomem *non_ehci = hcd->regs; u32 temp; - pdata = - (struct fsl_usb2_platform_data *)hcd->self.controller-> - platform_data; + pdata = hcd->self.controller->platform_data; + /* Enable PHY interface in the control reg. */ - temp = in_be32(non_ehci + FSL_SOC_USB_CTRL); - out_be32(non_ehci + FSL_SOC_USB_CTRL, temp | 0x00000004); - out_be32(non_ehci + FSL_SOC_USB_SNOOP1, 0x0000001b); + if (pdata->have_sysif_regs) { + temp = in_be32(non_ehci + FSL_SOC_USB_CTRL); + out_be32(non_ehci + FSL_SOC_USB_CTRL, temp | 0x00000004); + out_be32(non_ehci + FSL_SOC_USB_SNOOP1, 0x0000001b); + } #if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE) /* @@ -214,7 +250,7 @@ static void mpc83xx_usb_setup(struct usb_hcd *hcd) if ((pdata->operating_mode == FSL_USB2_DR_HOST) || (pdata->operating_mode == FSL_USB2_DR_OTG)) - mpc83xx_setup_phy(ehci, pdata->phy_mode, 0); + ehci_fsl_setup_phy(ehci, pdata->phy_mode, 0); if (pdata->operating_mode == FSL_USB2_MPH_HOST) { unsigned int chip, rev, svr; @@ -228,25 +264,27 @@ static void mpc83xx_usb_setup(struct usb_hcd *hcd) ehci->has_fsl_port_bug = 1; if (pdata->port_enables & FSL_USB2_PORT0_ENABLED) - mpc83xx_setup_phy(ehci, pdata->phy_mode, 0); + ehci_fsl_setup_phy(ehci, pdata->phy_mode, 0); if (pdata->port_enables & FSL_USB2_PORT1_ENABLED) - mpc83xx_setup_phy(ehci, pdata->phy_mode, 1); + ehci_fsl_setup_phy(ehci, pdata->phy_mode, 1); } + if (pdata->have_sysif_regs) { #ifdef CONFIG_PPC_85xx - out_be32(non_ehci + FSL_SOC_USB_PRICTRL, 0x00000008); - out_be32(non_ehci + FSL_SOC_USB_AGECNTTHRSH, 0x00000080); + out_be32(non_ehci + FSL_SOC_USB_PRICTRL, 0x00000008); + out_be32(non_ehci + FSL_SOC_USB_AGECNTTHRSH, 0x00000080); #else - out_be32(non_ehci + FSL_SOC_USB_PRICTRL, 0x0000000c); - out_be32(non_ehci + FSL_SOC_USB_AGECNTTHRSH, 0x00000040); + out_be32(non_ehci + FSL_SOC_USB_PRICTRL, 0x0000000c); + out_be32(non_ehci + FSL_SOC_USB_AGECNTTHRSH, 0x00000040); #endif - out_be32(non_ehci + FSL_SOC_USB_SICTRL, 0x00000001); + out_be32(non_ehci + FSL_SOC_USB_SICTRL, 0x00000001); + } } /* called after powerup, by probe or system-pm "wakeup" */ static int ehci_fsl_reinit(struct ehci_hcd *ehci) { - mpc83xx_usb_setup(ehci_to_hcd(ehci)); + ehci_fsl_usb_setup(ehci); ehci_port_power(ehci, 0); return 0; @@ -257,6 +295,11 @@ static int ehci_fsl_setup(struct usb_hcd *hcd) { struct ehci_hcd *ehci = hcd_to_ehci(hcd); int retval; + struct fsl_usb2_platform_data *pdata; + + pdata = hcd->self.controller->platform_data; + ehci->big_endian_desc = pdata->big_endian_desc; + ehci->big_endian_mmio = pdata->big_endian_mmio; /* EHCI registers start at offset 0x100 */ ehci->caps = hcd->regs + 0x100; @@ -370,7 +413,7 @@ static const struct hc_driver ehci_fsl_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_USB2, + .flags = HCD_USB2 | HCD_MEMORY, /* * basic lifecycle operations |