3  * EHCI HCD (Host Controller Driver) PCI Bus Glue.
14 #include "ehci.h"
17 #define DRIVER_DESC "EHCI PCI platform driver"
19 static const char hcd_name[] = "ehci-pci";
33  * This is the list of PCI IDs for the devices that have EHCI USB class and
60 static int ehci_pci_reinit(struct ehci_hcd *ehci, struct pci_dev *pdev)  in ehci_pci_reinit()  argument
65 	 * (currently just BIOS handoff) allowed starting with EHCI 0.96  in ehci_pci_reinit()
71 		ehci_dbg(ehci, "MWI active\n");  in ehci_pci_reinit()
79 		ehci_writel(ehci, INTEL_QUARK_X1000_EHCI_MAX_THRESHOLD,  in ehci_pci_reinit()
80 			ehci->regs->intel_quark_x1000_insnreg01);  in ehci_pci_reinit()
89 	struct ehci_hcd		*ehci = hcd_to_ehci(hcd);  in ehci_pci_setup()  local
94 	ehci->caps = hcd->regs;  in ehci_pci_setup()
110 			ehci->big_endian_mmio = 1;  in ehci_pci_setup()
112 			ehci_warn(ehci,  in ehci_pci_setup()
128 				ehci_warn(ehci, "can't enable NVidia "  in ehci_pci_setup()
137 				ehci->no_selective_suspend = 1;  in ehci_pci_setup()
152 			ehci->amd_pll_fix = 1;  in ehci_pci_setup()
153 		/* AMD8111 EHCI doesn't work, according to AMD errata */  in ehci_pci_setup()
155 			ehci_info(ehci, "ignoring AMD8111 (errata)\n");  in ehci_pci_setup()
161 		 * EHCI controller on AMD SB700/SB800/Hudson-2/3 platforms may  in ehci_pci_setup()
168 			ehci->use_dummy_qh = 1;  in ehci_pci_setup()
169 			ehci_info(ehci, "applying AMD SB700/SB800/Hudson-2/3 EHCI dummy qh workaround\n");  in ehci_pci_setup()
176 			/* The VT6212 defaults to a 1 usec EHCI sleep time which  in ehci_pci_setup()
189 			ehci->amd_pll_fix = 1;  in ehci_pci_setup()
192 		 * EHCI controller on AMD SB700/SB800/Hudson-2/3 platforms may  in ehci_pci_setup()
199 			ehci->use_dummy_qh = 1;  in ehci_pci_setup()
200 			ehci_info(ehci, "applying AMD SB700/SB800/Hudson-2/3 EHCI dummy qh workaround\n");  in ehci_pci_setup()
202 		/* SB600 and old version of SB700 have a bug in EHCI controller,  in ehci_pci_setup()
208 			ehci_info(ehci, "applying AMD SB600/SB700 USB freeze workaround\n");  in ehci_pci_setup()
215 		ehci_info(ehci, "applying MosChip frame-index workaround\n");  in ehci_pci_setup()
216 		ehci->frame_index_bug = 1;  in ehci_pci_setup()
221 			ehci_info(ehci, "applying Synopsys HC workaround\n");  in ehci_pci_setup()
222 			ehci->has_synopsys_hc_bug = 1;  in ehci_pci_setup()
233 			u32 hcs_params = ehci_readl(ehci,  in ehci_pci_setup()
234 						    &ehci->caps->hcs_params);  in ehci_pci_setup()
237 			ehci->debug = hcd->regs + temp;  in ehci_pci_setup()
238 			temp = ehci_readl(ehci, &ehci->debug->control);  in ehci_pci_setup()
239 			ehci_info(ehci, "debug port %d%s\n",  in ehci_pci_setup()
243 				ehci->debug = NULL;  in ehci_pci_setup()
256 		ehci->need_io_watchdog = 0;  in ehci_pci_setup()
266 			ehci_info(ehci, "disable ppcd for nvidia mcp89\n");  in ehci_pci_setup()
267 			ehci->has_ppcd = 0;  in ehci_pci_setup()
268 			ehci->command &= ~CMD_PPCEE;  in ehci_pci_setup()
275 	temp = HCS_N_CC(ehci->hcs_params) * HCS_N_PCC(ehci->hcs_params);  in ehci_pci_setup()
277 	if (temp && HCS_N_PORTS(ehci->hcs_params) > temp) {  in ehci_pci_setup()
278 		ehci_dbg(ehci, "bogus port configuration: "  in ehci_pci_setup()
280 			HCS_N_CC(ehci->hcs_params),  in ehci_pci_setup()
281 			HCS_N_PCC(ehci->hcs_params),  in ehci_pci_setup()
282 			HCS_N_PORTS(ehci->hcs_params));  in ehci_pci_setup()
287 			temp |= (ehci->hcs_params & ~0xf);  in ehci_pci_setup()
288 			ehci->hcs_params = temp;  in ehci_pci_setup()
301 		pci_read_config_byte(pdev, 0x60, &ehci->sbrn);  in ehci_pci_setup()
303 	/* Keep this around for a while just in case some EHCI  in ehci_pci_setup()
319 	if (ehci->no_selective_suspend && device_can_wakeup(&pdev->dev))  in ehci_pci_setup()
320 		ehci_warn(ehci, "selective suspend/wakeup unavailable\n");  in ehci_pci_setup()
323 	retval = ehci_pci_reinit(ehci, pdev);  in ehci_pci_setup()
343 	struct ehci_hcd		*ehci = hcd_to_ehci(hcd);  in ehci_pci_resume()  local
347 		(void) ehci_pci_reinit(ehci, pdev);  in ehci_pci_resume()
380 	/* handle any USB 2.0 EHCI controller */