diff options
Diffstat (limited to 'drivers/usb/host')
-rw-r--r-- | drivers/usb/host/ehci-hcd.c | 5 | ||||
-rw-r--r-- | drivers/usb/host/ehci-platform.c | 2 | ||||
-rw-r--r-- | drivers/usb/host/ehci-sead3.c | 185 | ||||
-rw-r--r-- | drivers/usb/host/ohci-at91.c | 9 | ||||
-rw-r--r-- | drivers/usb/host/ohci-hcd.c | 2 | ||||
-rw-r--r-- | drivers/usb/host/xhci-hub.c | 41 | ||||
-rw-r--r-- | drivers/usb/host/xhci-pci.c | 10 | ||||
-rw-r--r-- | drivers/usb/host/xhci.h | 3 |
8 files changed, 59 insertions, 198 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 1e5f529d51a2..063064801ceb 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -1308,11 +1308,6 @@ MODULE_LICENSE ("GPL"); #define PLATFORM_DRIVER ehci_mv_driver #endif -#ifdef CONFIG_MIPS_SEAD3 -#include "ehci-sead3.c" -#define PLATFORM_DRIVER ehci_hcd_sead3_driver -#endif - static int __init ehci_hcd_init(void) { int retval = 0; diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c index 876dca4fc216..a268d9e8d6cf 100644 --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -39,7 +39,7 @@ #define DRIVER_DESC "EHCI generic platform driver" #define EHCI_MAX_CLKS 4 -#define EHCI_MAX_RSTS 3 +#define EHCI_MAX_RSTS 4 #define hcd_to_ehci_priv(h) ((struct ehci_platform_priv *)hcd_to_ehci(h)->priv) struct ehci_platform_priv { diff --git a/drivers/usb/host/ehci-sead3.c b/drivers/usb/host/ehci-sead3.c deleted file mode 100644 index 3d86cc2ffe68..000000000000 --- a/drivers/usb/host/ehci-sead3.c +++ /dev/null @@ -1,185 +0,0 @@ -/* - * MIPS CI13320A EHCI Host Controller driver - * Based on "ehci-au1xxx.c" by K.Boge <karsten.boge@amd.com> - * - * Copyright (C) 2012 MIPS Technologies, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/err.h> -#include <linux/platform_device.h> - -static int ehci_sead3_setup(struct usb_hcd *hcd) -{ - int ret; - struct ehci_hcd *ehci = hcd_to_ehci(hcd); - - ehci->caps = hcd->regs + 0x100; - -#ifdef __BIG_ENDIAN - ehci->big_endian_mmio = 1; - ehci->big_endian_desc = 1; -#endif - - ret = ehci_setup(hcd); - if (ret) - return ret; - - ehci->need_io_watchdog = 0; - - /* Set burst length to 16 words. */ - ehci_writel(ehci, 0x1010, &ehci->regs->reserved1[1]); - - return ret; -} - -const struct hc_driver ehci_sead3_hc_driver = { - .description = hcd_name, - .product_desc = "SEAD-3 EHCI", - .hcd_priv_size = sizeof(struct ehci_hcd), - - /* - * generic hardware linkage - */ - .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, - - /* - * basic lifecycle operations - * - */ - .reset = ehci_sead3_setup, - .start = ehci_run, - .stop = ehci_stop, - .shutdown = ehci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ehci_urb_enqueue, - .urb_dequeue = ehci_urb_dequeue, - .endpoint_disable = ehci_endpoint_disable, - .endpoint_reset = ehci_endpoint_reset, - - /* - * scheduling support - */ - .get_frame_number = ehci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ehci_hub_status_data, - .hub_control = ehci_hub_control, - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_resume, - .relinquish_port = ehci_relinquish_port, - .port_handed_over = ehci_port_handed_over, - - .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, -}; - -static int ehci_hcd_sead3_drv_probe(struct platform_device *pdev) -{ - struct usb_hcd *hcd; - struct resource *res; - int ret; - - if (usb_disabled()) - return -ENODEV; - - if (pdev->resource[1].flags != IORESOURCE_IRQ) { - pr_debug("resource[1] is not IORESOURCE_IRQ"); - return -ENOMEM; - } - hcd = usb_create_hcd(&ehci_sead3_hc_driver, &pdev->dev, "SEAD-3"); - if (!hcd) - return -ENOMEM; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - hcd->regs = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(hcd->regs)) { - ret = PTR_ERR(hcd->regs); - goto err1; - } - hcd->rsrc_start = res->start; - hcd->rsrc_len = resource_size(res); - - /* Root hub has integrated TT. */ - hcd->has_tt = 1; - - ret = usb_add_hcd(hcd, pdev->resource[1].start, - IRQF_SHARED); - if (ret == 0) { - platform_set_drvdata(pdev, hcd); - device_wakeup_enable(hcd->self.controller); - return ret; - } - -err1: - usb_put_hcd(hcd); - return ret; -} - -static int ehci_hcd_sead3_drv_remove(struct platform_device *pdev) -{ - struct usb_hcd *hcd = platform_get_drvdata(pdev); - - usb_remove_hcd(hcd); - usb_put_hcd(hcd); - - return 0; -} - -#ifdef CONFIG_PM -static int ehci_hcd_sead3_drv_suspend(struct device *dev) -{ - struct usb_hcd *hcd = dev_get_drvdata(dev); - bool do_wakeup = device_may_wakeup(dev); - - return ehci_suspend(hcd, do_wakeup); -} - -static int ehci_hcd_sead3_drv_resume(struct device *dev) -{ - struct usb_hcd *hcd = dev_get_drvdata(dev); - - ehci_resume(hcd, false); - return 0; -} - -static const struct dev_pm_ops sead3_ehci_pmops = { - .suspend = ehci_hcd_sead3_drv_suspend, - .resume = ehci_hcd_sead3_drv_resume, -}; - -#define SEAD3_EHCI_PMOPS (&sead3_ehci_pmops) - -#else -#define SEAD3_EHCI_PMOPS NULL -#endif - -static struct platform_driver ehci_hcd_sead3_driver = { - .probe = ehci_hcd_sead3_drv_probe, - .remove = ehci_hcd_sead3_drv_remove, - .shutdown = usb_hcd_platform_shutdown, - .driver = { - .name = "sead3-ehci", - .pm = SEAD3_EHCI_PMOPS, - } -}; - -MODULE_ALIAS("platform:sead3-ehci"); diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 5b5880c0ae19..b38a228134df 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -221,6 +221,12 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, ohci->num_ports = board->ports; at91_start_hc(pdev); + /* + * The RemoteWakeupConnected bit has to be set explicitly + * before calling ohci_run. The reset value of this bit is 0. + */ + ohci->hc_control = OHCI_CTRL_RWC; + retval = usb_add_hcd(hcd, irq, IRQF_SHARED); if (retval == 0) { device_wakeup_enable(hcd->self.controller); @@ -677,9 +683,6 @@ ohci_hcd_at91_drv_suspend(struct device *dev) * REVISIT: some boards will be able to turn VBUS off... */ if (!ohci_at91->wakeup) { - ohci->hc_control = ohci_readl(ohci, &ohci->regs->control); - ohci->hc_control &= OHCI_CTRL_RWC; - ohci_writel(ohci, ohci->hc_control, &ohci->regs->control); ohci->rh_state = OHCI_RH_HALTED; /* flush the writes */ diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 1700908b84ef..86612ac3fda2 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -72,7 +72,7 @@ static const char hcd_name [] = "ohci_hcd"; #define STATECHANGE_DELAY msecs_to_jiffies(300) -#define IO_WATCHDOG_DELAY msecs_to_jiffies(250) +#define IO_WATCHDOG_DELAY msecs_to_jiffies(275) #include "ohci.h" #include "pci-quirks.h" diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 730b9fd26685..0ef16900efed 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -1166,7 +1166,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, xhci_set_link_state(xhci, port_array, wIndex, XDEV_RESUME); spin_unlock_irqrestore(&xhci->lock, flags); - msleep(20); + msleep(USB_RESUME_TIMEOUT); spin_lock_irqsave(&xhci->lock, flags); xhci_set_link_state(xhci, port_array, wIndex, XDEV_U0); @@ -1355,6 +1355,35 @@ int xhci_bus_suspend(struct usb_hcd *hcd) return 0; } +/* + * Workaround for missing Cold Attach Status (CAS) if device re-plugged in S3. + * warm reset a USB3 device stuck in polling or compliance mode after resume. + * See Intel 100/c230 series PCH specification update Doc #332692-006 Errata #8 + */ +static bool xhci_port_missing_cas_quirk(int port_index, + __le32 __iomem **port_array) +{ + u32 portsc; + + portsc = readl(port_array[port_index]); + + /* if any of these are set we are not stuck */ + if (portsc & (PORT_CONNECT | PORT_CAS)) + return false; + + if (((portsc & PORT_PLS_MASK) != XDEV_POLLING) && + ((portsc & PORT_PLS_MASK) != XDEV_COMP_MODE)) + return false; + + /* clear wakeup/change bits, and do a warm port reset */ + portsc &= ~(PORT_RWC_BITS | PORT_CEC | PORT_WAKE_BITS); + portsc |= PORT_WR; + writel(portsc, port_array[port_index]); + /* flush write */ + readl(port_array[port_index]); + return true; +} + int xhci_bus_resume(struct usb_hcd *hcd) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); @@ -1392,6 +1421,14 @@ int xhci_bus_resume(struct usb_hcd *hcd) u32 temp; temp = readl(port_array[port_index]); + + /* warm reset CAS limited ports stuck in polling/compliance */ + if ((xhci->quirks & XHCI_MISSING_CAS) && + (hcd->speed >= HCD_USB3) && + xhci_port_missing_cas_quirk(port_index, port_array)) { + xhci_dbg(xhci, "reset stuck port %d\n", port_index); + continue; + } if (DEV_SUPERSPEED_ANY(temp)) temp &= ~(PORT_RWC_BITS | PORT_CEC | PORT_WAKE_BITS); else @@ -1410,7 +1447,7 @@ int xhci_bus_resume(struct usb_hcd *hcd) if (need_usb2_u3_exit) { spin_unlock_irqrestore(&xhci->lock, flags); - msleep(20); + msleep(USB_RESUME_TIMEOUT); spin_lock_irqsave(&xhci->lock, flags); } diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index d7b0f97abbad..e96ae80d107e 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -45,11 +45,13 @@ #define PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI 0x8c31 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31 +#define PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_XHCI 0x9cb1 #define PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI 0x22b5 #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI 0xa12f #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI 0x9d2f #define PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI 0x0aa8 #define PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI 0x1aa8 +#define PCI_DEVICE_ID_INTEL_APL_XHCI 0x5aa8 static const char hcd_name[] = "xhci_hcd"; @@ -153,7 +155,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) xhci->quirks |= XHCI_SPURIOUS_REBOOT; } if (pdev->vendor == PCI_VENDOR_ID_INTEL && - pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI) { + (pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI || + pdev->device == PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_XHCI)) { xhci->quirks |= XHCI_SPURIOUS_REBOOT; xhci->quirks |= XHCI_SPURIOUS_WAKEUP; } @@ -169,6 +172,11 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI) { xhci->quirks |= XHCI_SSIC_PORT_UNUSED; } + if (pdev->vendor == PCI_VENDOR_ID_INTEL && + (pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI || + pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI)) + xhci->quirks |= XHCI_MISSING_CAS; + if (pdev->vendor == PCI_VENDOR_ID_ETRON && pdev->device == PCI_DEVICE_ID_EJ168) { xhci->quirks |= XHCI_RESET_ON_RESUME; diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index b2c1dc5dc0f3..f945380035d0 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -314,6 +314,8 @@ struct xhci_op_regs { #define XDEV_U2 (0x2 << 5) #define XDEV_U3 (0x3 << 5) #define XDEV_INACTIVE (0x6 << 5) +#define XDEV_POLLING (0x7 << 5) +#define XDEV_COMP_MODE (0xa << 5) #define XDEV_RESUME (0xf << 5) /* true: port has power (see HCC_PPC) */ #define PORT_POWER (1 << 9) @@ -1653,6 +1655,7 @@ struct xhci_hcd { #define XHCI_MTK_HOST (1 << 21) #define XHCI_SSIC_PORT_UNUSED (1 << 22) #define XHCI_NO_64BIT_SUPPORT (1 << 23) +#define XHCI_MISSING_CAS (1 << 24) unsigned int num_active_eps; unsigned int limit_active_eps; /* There are two roothubs to keep track of bus suspend info for */ |