834 	struct fsl_otg *p_otg;  in usb_otg_start()  local
842 	p_otg = container_of(otg_trans, struct fsl_otg, phy);  in usb_otg_start()
843 	fsm = &p_otg->fsm;  in usb_otg_start()
847 	fsm->otg = p_otg->phy.otg;  in usb_otg_start()
858 	p_otg->dr_mem_map = (struct usb_dr_mmap *)usb_dr_regs;  in usb_otg_start()
875 	p_otg->irq = platform_get_irq(pdev, 0);  in usb_otg_start()
876 	if (p_otg->irq < 0)  in usb_otg_start()
877 		return p_otg->irq;  in usb_otg_start()
878 	status = request_irq(p_otg->irq, fsl_otg_isr,  in usb_otg_start()
879 				IRQF_SHARED, driver_name, p_otg);  in usb_otg_start()
881 		dev_dbg(p_otg->phy.dev, "can't get IRQ %d, error %d\n",  in usb_otg_start()
882 			p_otg->irq, status);  in usb_otg_start()
883 		iounmap(p_otg->dr_mem_map);  in usb_otg_start()
884 		kfree(p_otg->phy.otg);  in usb_otg_start()
885 		kfree(p_otg);  in usb_otg_start()
890 	temp = fsl_readl(&p_otg->dr_mem_map->usbcmd);  in usb_otg_start()
892 	fsl_writel(temp, &p_otg->dr_mem_map->usbcmd);  in usb_otg_start()
895 	temp = fsl_readl(&p_otg->dr_mem_map->usbcmd);  in usb_otg_start()
897 	fsl_writel(temp, &p_otg->dr_mem_map->usbcmd);  in usb_otg_start()
900 	while (fsl_readl(&p_otg->dr_mem_map->usbcmd) & USB_CMD_CTRL_RESET)  in usb_otg_start()
905 	fsl_writel(temp, &p_otg->dr_mem_map->usbmode);  in usb_otg_start()
908 	temp = fsl_readl(&p_otg->dr_mem_map->portsc);  in usb_otg_start()
923 	fsl_writel(temp, &p_otg->dr_mem_map->portsc);  in usb_otg_start()
927 		temp = __raw_readl(&p_otg->dr_mem_map->control);  in usb_otg_start()
929 		__raw_writel(temp, &p_otg->dr_mem_map->control);  in usb_otg_start()
933 	temp = fsl_readl(&p_otg->dr_mem_map->otgsc);  in usb_otg_start()
936 	fsl_writel(temp, &p_otg->dr_mem_map->otgsc);  in usb_otg_start()
943 	if (fsl_readl(&p_otg->dr_mem_map->otgsc) & OTGSC_STS_USB_ID) {  in usb_otg_start()
944 		p_otg->phy.otg->state = OTG_STATE_UNDEFINED;  in usb_otg_start()
945 		p_otg->fsm.id = 1;  in usb_otg_start()
947 		p_otg->phy.otg->state = OTG_STATE_A_IDLE;  in usb_otg_start()
948 		p_otg->fsm.id = 0;  in usb_otg_start()
951 	pr_debug("initial ID pin=%d\n", p_otg->fsm.id);  in usb_otg_start()
954 	temp = fsl_readl(&p_otg->dr_mem_map->otgsc);  in usb_otg_start()
957 	fsl_writel(temp, &p_otg->dr_mem_map->otgsc);  in usb_otg_start()