Lines Matching +full:de +full:- +full:asserting
1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright 2005-2009 MontaVista Software, Inc.
9 * Jerry Huang <Chang-Ming.Huang@freescale.com> and
29 #include "ehci-fsl.h"
32 #define DRV_NAME "ehci-fsl"
40 * fsl_ehci_drv_probe - initialize FSL-based HCDs
56 pr_debug("initializing FSL-SOC USB Controller\n"); in fsl_ehci_drv_probe()
59 pdata = dev_get_platdata(&pdev->dev); in fsl_ehci_drv_probe()
61 dev_err(&pdev->dev, in fsl_ehci_drv_probe()
62 "No platform data for %s.\n", dev_name(&pdev->dev)); in fsl_ehci_drv_probe()
63 return -ENODEV; in fsl_ehci_drv_probe()
70 if (!((pdata->operating_mode == FSL_USB2_DR_HOST) || in fsl_ehci_drv_probe()
71 (pdata->operating_mode == FSL_USB2_MPH_HOST) || in fsl_ehci_drv_probe()
72 (pdata->operating_mode == FSL_USB2_DR_OTG))) { in fsl_ehci_drv_probe()
73 dev_err(&pdev->dev, in fsl_ehci_drv_probe()
75 dev_name(&pdev->dev)); in fsl_ehci_drv_probe()
76 return -ENODEV; in fsl_ehci_drv_probe()
81 dev_err(&pdev->dev, in fsl_ehci_drv_probe()
83 dev_name(&pdev->dev)); in fsl_ehci_drv_probe()
84 return -ENODEV; in fsl_ehci_drv_probe()
86 irq = res->start; in fsl_ehci_drv_probe()
88 hcd = __usb_create_hcd(&fsl_ehci_hc_driver, pdev->dev.parent, in fsl_ehci_drv_probe()
89 &pdev->dev, dev_name(&pdev->dev), NULL); in fsl_ehci_drv_probe()
91 retval = -ENOMEM; in fsl_ehci_drv_probe()
96 hcd->regs = devm_ioremap_resource(&pdev->dev, res); in fsl_ehci_drv_probe()
97 if (IS_ERR(hcd->regs)) { in fsl_ehci_drv_probe()
98 retval = PTR_ERR(hcd->regs); in fsl_ehci_drv_probe()
102 hcd->rsrc_start = res->start; in fsl_ehci_drv_probe()
103 hcd->rsrc_len = resource_size(res); in fsl_ehci_drv_probe()
105 pdata->regs = hcd->regs; in fsl_ehci_drv_probe()
107 if (pdata->power_budget) in fsl_ehci_drv_probe()
108 hcd->power_budget = pdata->power_budget; in fsl_ehci_drv_probe()
113 if (pdata->init && pdata->init(pdev)) { in fsl_ehci_drv_probe()
114 retval = -ENODEV; in fsl_ehci_drv_probe()
119 if (pdata->have_sysif_regs && pdata->controller_ver < FSL_USB_VER_1_6) { in fsl_ehci_drv_probe()
120 tmp = ioread32be(hcd->regs + FSL_SOC_USB_CTRL); in fsl_ehci_drv_probe()
123 iowrite32be(tmp, hcd->regs + FSL_SOC_USB_CTRL); in fsl_ehci_drv_probe()
127 if (pdata->controller_ver == FSL_USB_VER_2_5 && in fsl_ehci_drv_probe()
128 pdata->phy_mode == FSL_USB2_PHY_ULPI) in fsl_ehci_drv_probe()
129 iowrite32be(USB_CTRL_USB_EN, hcd->regs + FSL_SOC_USB_CTRL); in fsl_ehci_drv_probe()
132 * Enable UTMI phy and program PTS field in UTMI mode before asserting in fsl_ehci_drv_probe()
135 if (pdata->has_fsl_erratum_a007792) { in fsl_ehci_drv_probe()
136 tmp = ioread32be(hcd->regs + FSL_SOC_USB_CTRL); in fsl_ehci_drv_probe()
139 iowrite32be(tmp, hcd->regs + FSL_SOC_USB_CTRL); in fsl_ehci_drv_probe()
141 writel(PORT_PTS_UTMI, hcd->regs + FSL_SOC_USB_PORTSC1); in fsl_ehci_drv_probe()
149 device_wakeup_enable(hcd->self.controller); in fsl_ehci_drv_probe()
152 if (pdata->operating_mode == FSL_USB2_DR_OTG) { in fsl_ehci_drv_probe()
155 hcd->usb_phy = usb_get_phy(USB_PHY_TYPE_USB2); in fsl_ehci_drv_probe()
156 dev_dbg(&pdev->dev, "hcd=0x%p ehci=0x%p, phy=0x%p\n", in fsl_ehci_drv_probe()
157 hcd, ehci, hcd->usb_phy); in fsl_ehci_drv_probe()
159 if (!IS_ERR_OR_NULL(hcd->usb_phy)) { in fsl_ehci_drv_probe()
160 retval = otg_set_host(hcd->usb_phy->otg, in fsl_ehci_drv_probe()
161 &ehci_to_hcd(ehci)->self); in fsl_ehci_drv_probe()
163 usb_put_phy(hcd->usb_phy); in fsl_ehci_drv_probe()
167 dev_err(&pdev->dev, "can't find phy\n"); in fsl_ehci_drv_probe()
168 retval = -ENODEV; in fsl_ehci_drv_probe()
172 hcd->skip_phy_initialization = 1; in fsl_ehci_drv_probe()
180 dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev), retval); in fsl_ehci_drv_probe()
181 if (pdata->exit) in fsl_ehci_drv_probe()
182 pdata->exit(pdev); in fsl_ehci_drv_probe()
188 void __iomem *non_ehci = hcd->regs; in usb_phy_clk_valid()
203 void __iomem *non_ehci = hcd->regs; in ehci_fsl_setup_phy()
204 struct device *dev = hcd->self.controller; in ehci_fsl_setup_phy()
207 if (pdata->controller_ver < 0) { in ehci_fsl_setup_phy()
208 dev_warn(hcd->self.controller, "Could not get controller version\n"); in ehci_fsl_setup_phy()
209 return -ENODEV; in ehci_fsl_setup_phy()
212 portsc = ehci_readl(ehci, &ehci->regs->port_status[port_offset]); in ehci_fsl_setup_phy()
217 if (pdata->have_sysif_regs && pdata->controller_ver) { in ehci_fsl_setup_phy()
240 * in device-tree is used to stop USB controller in ehci_fsl_setup_phy()
243 if (pdata->has_fsl_erratum_a006918) { in ehci_fsl_setup_phy()
245 return -EINVAL; in ehci_fsl_setup_phy()
249 /* PHY_CLK_VALID bit is de-featured from all controller in ehci_fsl_setup_phy()
253 if (pdata->controller_ver > FSL_USB_VER_2_4 && in ehci_fsl_setup_phy()
254 pdata->have_sysif_regs && !usb_phy_clk_valid(hcd)) { in ehci_fsl_setup_phy()
256 return -EINVAL; in ehci_fsl_setup_phy()
259 if (pdata->have_sysif_regs && pdata->controller_ver) { in ehci_fsl_setup_phy()
267 become stable - 10ms*/ in ehci_fsl_setup_phy()
270 if (pdata->have_sysif_regs) { in ehci_fsl_setup_phy()
282 if (pdata->have_sysif_regs && in ehci_fsl_setup_phy()
283 pdata->controller_ver > FSL_USB_VER_1_6 && in ehci_fsl_setup_phy()
285 dev_warn(hcd->self.controller, "USB PHY clock invalid\n"); in ehci_fsl_setup_phy()
286 return -EINVAL; in ehci_fsl_setup_phy()
289 ehci_writel(ehci, portsc, &ehci->regs->port_status[port_offset]); in ehci_fsl_setup_phy()
291 if (phy_mode != FSL_USB2_PHY_ULPI && pdata->have_sysif_regs) { in ehci_fsl_setup_phy()
305 void __iomem *non_ehci = hcd->regs; in ehci_fsl_usb_setup()
307 pdata = dev_get_platdata(hcd->self.controller); in ehci_fsl_usb_setup()
309 if (pdata->have_sysif_regs) { in ehci_fsl_usb_setup()
324 /* Deal with USB erratum A-005275 */ in ehci_fsl_usb_setup()
325 if (pdata->has_fsl_erratum_a005275 == 1) in ehci_fsl_usb_setup()
326 ehci->has_fsl_hs_errata = 1; in ehci_fsl_usb_setup()
328 if (pdata->has_fsl_erratum_a005697 == 1) in ehci_fsl_usb_setup()
329 ehci->has_fsl_susp_errata = 1; in ehci_fsl_usb_setup()
331 if ((pdata->operating_mode == FSL_USB2_DR_HOST) || in ehci_fsl_usb_setup()
332 (pdata->operating_mode == FSL_USB2_DR_OTG)) in ehci_fsl_usb_setup()
333 if (ehci_fsl_setup_phy(hcd, pdata->phy_mode, 0)) in ehci_fsl_usb_setup()
334 return -EINVAL; in ehci_fsl_usb_setup()
336 if (pdata->operating_mode == FSL_USB2_MPH_HOST) { in ehci_fsl_usb_setup()
339 if (pdata->has_fsl_erratum_14 == 1) in ehci_fsl_usb_setup()
340 ehci->has_fsl_port_bug = 1; in ehci_fsl_usb_setup()
342 if (pdata->port_enables & FSL_USB2_PORT0_ENABLED) in ehci_fsl_usb_setup()
343 if (ehci_fsl_setup_phy(hcd, pdata->phy_mode, 0)) in ehci_fsl_usb_setup()
344 return -EINVAL; in ehci_fsl_usb_setup()
346 if (pdata->port_enables & FSL_USB2_PORT1_ENABLED) in ehci_fsl_usb_setup()
347 if (ehci_fsl_setup_phy(hcd, pdata->phy_mode, 1)) in ehci_fsl_usb_setup()
348 return -EINVAL; in ehci_fsl_usb_setup()
351 if (pdata->have_sysif_regs) { in ehci_fsl_usb_setup()
365 /* called after powerup, by probe or system-pm "wakeup" */
369 return -EINVAL; in ehci_fsl_reinit()
382 dev = hcd->self.controller; in ehci_fsl_setup()
383 pdata = dev_get_platdata(hcd->self.controller); in ehci_fsl_setup()
384 ehci->big_endian_desc = pdata->big_endian_desc; in ehci_fsl_setup()
385 ehci->big_endian_mmio = pdata->big_endian_mmio; in ehci_fsl_setup()
388 ehci->caps = hcd->regs + 0x100; in ehci_fsl_setup()
396 ehci->need_oc_pp_cycle = 1; in ehci_fsl_setup()
399 hcd->has_tt = 1; in ehci_fsl_setup()
405 if (of_device_is_compatible(dev->parent->of_node, in ehci_fsl_setup()
406 "fsl,mpc5121-usb2-dr")) { in ehci_fsl_setup()
412 hcd->regs + FSL_SOC_USB_SBUSCFG); in ehci_fsl_setup()
439 u32 mode = ehci_readl(ehci, hcd->regs + FSL_SOC_USB_USBMODE); in ehci_fsl_mpc512x_drv_suspend()
441 tmp = ehci_readl(ehci, hcd->regs + 0x140); /* usbcmd */ in ehci_fsl_mpc512x_drv_suspend()
444 "mode=%d usbcmd %08x\n", pdata->suspended, in ehci_fsl_mpc512x_drv_suspend()
445 pdata->already_suspended, mode, tmp); in ehci_fsl_mpc512x_drv_suspend()
453 if (pdata->suspended) { in ehci_fsl_mpc512x_drv_suspend()
455 pdata->already_suspended = 1; in ehci_fsl_mpc512x_drv_suspend()
461 ehci->rh_state = EHCI_RH_SUSPENDED; in ehci_fsl_mpc512x_drv_suspend()
462 dev->power.power_state = PMSG_SUSPEND; in ehci_fsl_mpc512x_drv_suspend()
464 /* ignore non-host interrupts */ in ehci_fsl_mpc512x_drv_suspend()
465 clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); in ehci_fsl_mpc512x_drv_suspend()
468 tmp = ehci_readl(ehci, &ehci->regs->command); in ehci_fsl_mpc512x_drv_suspend()
470 ehci_writel(ehci, tmp, &ehci->regs->command); in ehci_fsl_mpc512x_drv_suspend()
473 pdata->pm_command = ehci_readl(ehci, &ehci->regs->command); in ehci_fsl_mpc512x_drv_suspend()
474 pdata->pm_command &= ~CMD_RUN; in ehci_fsl_mpc512x_drv_suspend()
475 pdata->pm_status = ehci_readl(ehci, &ehci->regs->status); in ehci_fsl_mpc512x_drv_suspend()
476 pdata->pm_intr_enable = ehci_readl(ehci, &ehci->regs->intr_enable); in ehci_fsl_mpc512x_drv_suspend()
477 pdata->pm_frame_index = ehci_readl(ehci, &ehci->regs->frame_index); in ehci_fsl_mpc512x_drv_suspend()
478 pdata->pm_segment = ehci_readl(ehci, &ehci->regs->segment); in ehci_fsl_mpc512x_drv_suspend()
479 pdata->pm_frame_list = ehci_readl(ehci, &ehci->regs->frame_list); in ehci_fsl_mpc512x_drv_suspend()
480 pdata->pm_async_next = ehci_readl(ehci, &ehci->regs->async_next); in ehci_fsl_mpc512x_drv_suspend()
481 pdata->pm_configured_flag = in ehci_fsl_mpc512x_drv_suspend()
482 ehci_readl(ehci, &ehci->regs->configured_flag); in ehci_fsl_mpc512x_drv_suspend()
483 pdata->pm_portsc = ehci_readl(ehci, &ehci->regs->port_status[0]); in ehci_fsl_mpc512x_drv_suspend()
484 pdata->pm_usbgenctrl = ehci_readl(ehci, in ehci_fsl_mpc512x_drv_suspend()
485 hcd->regs + FSL_SOC_USB_USBGENCTRL); in ehci_fsl_mpc512x_drv_suspend()
488 pdata->pm_portsc &= cpu_to_hc32(ehci, ~PORT_RWC_BITS); in ehci_fsl_mpc512x_drv_suspend()
490 pdata->suspended = 1; in ehci_fsl_mpc512x_drv_suspend()
493 tmp = ehci_readl(ehci, &ehci->regs->port_status[0]); in ehci_fsl_mpc512x_drv_suspend()
495 ehci_writel(ehci, tmp, &ehci->regs->port_status[0]); in ehci_fsl_mpc512x_drv_suspend()
508 pdata->suspended, pdata->already_suspended); in ehci_fsl_mpc512x_drv_resume()
514 if (pdata->already_suspended) { in ehci_fsl_mpc512x_drv_resume()
516 pdata->already_suspended = 0; in ehci_fsl_mpc512x_drv_resume()
520 if (!pdata->suspended) { in ehci_fsl_mpc512x_drv_resume()
525 pdata->suspended = 0; in ehci_fsl_mpc512x_drv_resume()
530 tmp = USBMODE_CM_HOST | (pdata->es ? USBMODE_ES : 0); in ehci_fsl_mpc512x_drv_resume()
531 ehci_writel(ehci, tmp, hcd->regs + FSL_SOC_USB_USBMODE); in ehci_fsl_mpc512x_drv_resume()
533 ehci_writel(ehci, pdata->pm_usbgenctrl, in ehci_fsl_mpc512x_drv_resume()
534 hcd->regs + FSL_SOC_USB_USBGENCTRL); in ehci_fsl_mpc512x_drv_resume()
536 hcd->regs + FSL_SOC_USB_ISIPHYCTRL); in ehci_fsl_mpc512x_drv_resume()
538 ehci_writel(ehci, SBUSCFG_INCR8, hcd->regs + FSL_SOC_USB_SBUSCFG); in ehci_fsl_mpc512x_drv_resume()
541 ehci_writel(ehci, pdata->pm_command, &ehci->regs->command); in ehci_fsl_mpc512x_drv_resume()
542 ehci_writel(ehci, pdata->pm_intr_enable, &ehci->regs->intr_enable); in ehci_fsl_mpc512x_drv_resume()
543 ehci_writel(ehci, pdata->pm_frame_index, &ehci->regs->frame_index); in ehci_fsl_mpc512x_drv_resume()
544 ehci_writel(ehci, pdata->pm_segment, &ehci->regs->segment); in ehci_fsl_mpc512x_drv_resume()
545 ehci_writel(ehci, pdata->pm_frame_list, &ehci->regs->frame_list); in ehci_fsl_mpc512x_drv_resume()
546 ehci_writel(ehci, pdata->pm_async_next, &ehci->regs->async_next); in ehci_fsl_mpc512x_drv_resume()
547 ehci_writel(ehci, pdata->pm_configured_flag, in ehci_fsl_mpc512x_drv_resume()
548 &ehci->regs->configured_flag); in ehci_fsl_mpc512x_drv_resume()
549 ehci_writel(ehci, pdata->pm_portsc, &ehci->regs->port_status[0]); in ehci_fsl_mpc512x_drv_resume()
551 set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); in ehci_fsl_mpc512x_drv_resume()
552 ehci->rh_state = EHCI_RH_RUNNING; in ehci_fsl_mpc512x_drv_resume()
553 dev->power.power_state = PMSG_ON; in ehci_fsl_mpc512x_drv_resume()
555 tmp = ehci_readl(ehci, &ehci->regs->command); in ehci_fsl_mpc512x_drv_resume()
557 ehci_writel(ehci, tmp, &ehci->regs->command); in ehci_fsl_mpc512x_drv_resume()
586 void __iomem *non_ehci = hcd->regs; in ehci_fsl_drv_suspend()
588 if (of_device_is_compatible(dev->parent->of_node, in ehci_fsl_drv_suspend()
589 "fsl,mpc5121-usb2-dr")) { in ehci_fsl_drv_suspend()
598 ehci_fsl->usb_ctrl = ioread32be(non_ehci + FSL_SOC_USB_CTRL); in ehci_fsl_drv_suspend()
607 void __iomem *non_ehci = hcd->regs; in ehci_fsl_drv_resume()
609 if (of_device_is_compatible(dev->parent->of_node, in ehci_fsl_drv_resume()
610 "fsl,mpc5121-usb2-dr")) { in ehci_fsl_drv_resume()
618 usb_root_hub_lost_power(hcd->self.root_hub); in ehci_fsl_drv_resume()
621 iowrite32be(ehci_fsl->usb_ctrl, non_ehci + FSL_SOC_USB_CTRL); in ehci_fsl_drv_resume()
633 usb_root_hub_lost_power(hcd->self.root_hub); in ehci_fsl_drv_restore()
655 return -EINVAL; in ehci_start_port_reset()
657 port--; in ehci_start_port_reset()
660 status = readl(&ehci->regs->port_status[port]); in ehci_start_port_reset()
662 return -ENODEV; in ehci_start_port_reset()
668 &ehci->regs->port_status[port]); in ehci_start_port_reset()
670 writel(PORT_RESET, &ehci->regs->port_status[port]); in ehci_start_port_reset()
685 * fsl_ehci_drv_remove - shutdown processing for FSL-based HCDs
695 struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev); in fsl_ehci_drv_remove()
698 if (!IS_ERR_OR_NULL(hcd->usb_phy)) { in fsl_ehci_drv_remove()
699 otg_set_host(hcd->usb_phy->otg, NULL); in fsl_ehci_drv_remove()
700 usb_put_phy(hcd->usb_phy); in fsl_ehci_drv_remove()
706 * do platform specific un-initialization: in fsl_ehci_drv_remove()
709 if (pdata->exit) in fsl_ehci_drv_remove()
710 pdata->exit(pdev); in fsl_ehci_drv_remove()
721 .name = "fsl-ehci",
729 return -ENODEV; in ehci_fsl_init()
736 "Freescale On-Chip EHCI Host Controller"; in ehci_fsl_init()