1 // SPDX-License-Identifier: GPL-2.0
6  *(C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
7  *(C) Copyright 2002 Hewlett-Packard Company
10  * (C) Copyright 2005 Chris Humbert <mahadri-usb@drigon.com>
21  *	usb-ohci-tc6393.c(C) Copyright 2004 Lineo Solutions, Inc.
27 #include <linux/dma-mapping.h>
29 /*-------------------------------------------------------------------------*/
43 #define CCR_LMW2L	0x5C	/* w Local Memory Window 2 LMADRS Low	*/
44 #define CCR_LMW2H	0x5E	/* w Local Memory Window 2 LMADRS High	*/
45 #define CCR_LMW2BL	0x60	/* w Local Memory Window 2 Base Address Low	*/
46 #define CCR_LMW2BH	0x62	/* w Local Memory Window 2 Base Address High	*/
57 /*-------------------------------------------------------------------------*/
66 /*-------------------------------------------------------------------------*/
75 	spin_lock_irqsave(&tmio->lock, flags);  in tmio_write_pm()
80 	tmio_iowrite16(pm, tmio->ccr + CCR_PM);  in tmio_write_pm()
81 	spin_unlock_irqrestore(&tmio->lock, flags);  in tmio_write_pm()
92 	switch (ohci->num_ports) {  in tmio_stop_hc()
94 			dev_err(&dev->dev, "Unsupported amount of ports: %d\n", ohci->num_ports);  in tmio_stop_hc()
99 		case 2:  in tmio_stop_hc()
105 	tmio_iowrite8(0, tmio->ccr + CCR_INTC);  in tmio_stop_hc()
106 	tmio_iowrite8(0, tmio->ccr + CCR_ILME);  in tmio_stop_hc()
107 	tmio_iowrite16(0, tmio->ccr + CCR_BASE);  in tmio_stop_hc()
108 	tmio_iowrite16(0, tmio->ccr + CCR_BASE + 2);  in tmio_stop_hc()
109 	tmio_iowrite16(pm, tmio->ccr + CCR_PM);  in tmio_stop_hc()
116 	unsigned long base = hcd->rsrc_start;  in tmio_start_hc()
119 	tmio_iowrite16(base, tmio->ccr + CCR_BASE);  in tmio_start_hc()
120 	tmio_iowrite16(base >> 16, tmio->ccr + CCR_BASE + 2);  in tmio_start_hc()
121 	tmio_iowrite8(1, tmio->ccr + CCR_ILME);  in tmio_start_hc()
122 	tmio_iowrite8(2, tmio->ccr + CCR_INTC);  in tmio_start_hc()
124 	dev_info(&dev->dev, "revision %d @ 0x%08llx, irq %d\n",  in tmio_start_hc()
125 			tmio_ioread8(tmio->ccr + CCR_REVID),  in tmio_start_hc()
126 			(u64) hcd->rsrc_start, hcd->irq);  in tmio_start_hc()
138 		dev_err(hcd->self.controller, "can't start %s\n",  in ohci_tmio_start()
139 			hcd->self.bus_name);  in ohci_tmio_start()
179 /*-------------------------------------------------------------------------*/
184 	const struct mfd_cell *cell = mfd_get_cell(dev);  in ohci_hcd_tmio_drv_probe()  local
187 	struct resource *sram = platform_get_resource(dev, IORESOURCE_MEM, 2);  in ohci_hcd_tmio_drv_probe()
195 		return -ENODEV;  in ohci_hcd_tmio_drv_probe()
197 	if (!cell || !regs || !config || !sram)  in ohci_hcd_tmio_drv_probe()
198 		return -EINVAL;  in ohci_hcd_tmio_drv_probe()
203 	hcd = usb_create_hcd(&ohci_tmio_hc_driver, &dev->dev, dev_name(&dev->dev));  in ohci_hcd_tmio_drv_probe()
205 		ret = -ENOMEM;  in ohci_hcd_tmio_drv_probe()
209 	hcd->rsrc_start = regs->start;  in ohci_hcd_tmio_drv_probe()
210 	hcd->rsrc_len = resource_size(regs);  in ohci_hcd_tmio_drv_probe()
214 	spin_lock_init(&tmio->lock);  in ohci_hcd_tmio_drv_probe()
216 	tmio->ccr = ioremap(config->start, resource_size(config));  in ohci_hcd_tmio_drv_probe()
217 	if (!tmio->ccr) {  in ohci_hcd_tmio_drv_probe()
218 		ret = -ENOMEM;  in ohci_hcd_tmio_drv_probe()
222 	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);  in ohci_hcd_tmio_drv_probe()
223 	if (!hcd->regs) {  in ohci_hcd_tmio_drv_probe()
224 		ret = -ENOMEM;  in ohci_hcd_tmio_drv_probe()
228 	if (cell->enable) {  in ohci_hcd_tmio_drv_probe()
229 		ret = cell->enable(dev);  in ohci_hcd_tmio_drv_probe()
238 	ret = usb_hcd_setup_local_mem(hcd, sram->start, sram->start,  in ohci_hcd_tmio_drv_probe()
247 	device_wakeup_enable(hcd->self.controller);  in ohci_hcd_tmio_drv_probe()
255 	if (cell->disable)  in ohci_hcd_tmio_drv_probe()
256 		cell->disable(dev);  in ohci_hcd_tmio_drv_probe()
258 	iounmap(hcd->regs);  in ohci_hcd_tmio_drv_probe()
260 	iounmap(tmio->ccr);  in ohci_hcd_tmio_drv_probe()
272 	const struct mfd_cell *cell = mfd_get_cell(dev);  in ohci_hcd_tmio_drv_remove()  local
276 	if (cell->disable)  in ohci_hcd_tmio_drv_remove()
277 		cell->disable(dev);  in ohci_hcd_tmio_drv_remove()
278 	iounmap(hcd->regs);  in ohci_hcd_tmio_drv_remove()
279 	iounmap(tmio->ccr);  in ohci_hcd_tmio_drv_remove()
288 	const struct mfd_cell *cell = mfd_get_cell(dev);  in ohci_hcd_tmio_drv_suspend()  local
296 	if (time_before(jiffies, ohci->next_statechange))  in ohci_hcd_tmio_drv_suspend()
298 	ohci->next_statechange = jiffies;  in ohci_hcd_tmio_drv_suspend()
300 	spin_lock_irqsave(&tmio->lock, flags);  in ohci_hcd_tmio_drv_suspend()
302 	misc = tmio_ioread8(tmio->ccr + CCR_MISC);  in ohci_hcd_tmio_drv_suspend()
304 	tmio_iowrite8(misc, tmio->ccr + CCR_MISC);  in ohci_hcd_tmio_drv_suspend()
306 	spin_unlock_irqrestore(&tmio->lock, flags);  in ohci_hcd_tmio_drv_suspend()
308 	if (cell->suspend) {  in ohci_hcd_tmio_drv_suspend()
309 		ret = cell->suspend(dev);  in ohci_hcd_tmio_drv_suspend()
318 	const struct mfd_cell *cell = mfd_get_cell(dev);  in ohci_hcd_tmio_drv_resume()  local
326 	if (time_before(jiffies, ohci->next_statechange))  in ohci_hcd_tmio_drv_resume()
328 	ohci->next_statechange = jiffies;  in ohci_hcd_tmio_drv_resume()
330 	if (cell->resume) {  in ohci_hcd_tmio_drv_resume()
331 		ret = cell->resume(dev);  in ohci_hcd_tmio_drv_resume()
338 	spin_lock_irqsave(&tmio->lock, flags);  in ohci_hcd_tmio_drv_resume()
340 	misc = tmio_ioread8(tmio->ccr + CCR_MISC);  in ohci_hcd_tmio_drv_resume()
342 	tmio_iowrite8(misc, tmio->ccr + CCR_MISC);  in ohci_hcd_tmio_drv_resume()
344 	spin_unlock_irqrestore(&tmio->lock, flags);  in ohci_hcd_tmio_drv_resume()
362 		.name	= "tmio-ohci",