Hi Iwamatsu-san > The Renesas R-Mobile SoC (r8a7740) has USB EHCI and OHCI controllers. > > The ehci and ohci blocks share a common register and clocking infrastructure. > Initialization of the host controller and clocks is common between these and > is factored out into the rmobile-common.c file. (snip) > +void rmobile_hc_start(struct usb_hcd *hcd, struct platform_device *pdev) ... > + data = SMODE_READY_CTR | MMODE_HBUSREQ | > + MMODE_WR_INCR | MMODE_BYTE_BURST | MMODE_HTRANS; > + > + if (data == __raw_readl(hci->base + AHB_BUS_CTR)) > + return; > + > + /* AHB-PCI Bridge Communication Registers */ > + AHB_WRITE(hci, data, AHB_BUS_CTR); > + AHB_WRITE(hci, (PHYS_OFFSET & 0xf0000000) | PREFETCH, > + PCIAHB_WIN1_CTR); > + AHB_WRITE(hci, 0xf0000000 | PREFETCH, PCIAHB_WIN2_CTR); > + AHB_WRITE(hci, hci->phys_base | PCIWIN2_PCICMD, AHBPCI_WIN2_CTR); > + data = __raw_readl(hci->base + PCI_ARBITER_CTR); > + AHB_WRITE(hci, data | PCIBP_MODE | PCIREQ1 | PCIREQ0, > + PCI_ARBITER_CTR); > + > + /* PCI Configuration Registers for AHBPCI */ > + AHB_WRITE(hci, PCIWIN1_PCICMD | AHB_CFG_AHBPCI, AHBPCI_WIN1_CTR); > + AHB_WRITE(hci, hci->phys_base + AHBPCI_OFFSET, > + PCI_CONF_AHBPCI_BASEAD); > + AHB_WRITE(hci, PHYS_OFFSET & 0xf0000000, PCI_CONF_AHBPCI_WIN1_BASEAD); > + AHB_WRITE(hci, 0xf0000000, PCI_CONF_AHBPCI_WIN2_BASEAD); > + AHB_WRITE(hci, SERREN | PERREN | MASTEREN | MEMEN, > + PCI_CONF_AHBPCI_CMND_STS); > + > + /* PCI Configuration Registers for EHCI */ > + AHB_WRITE(hci, PCIWIN1_PCICMD | AHB_CFG_HOST, AHBPCI_WIN1_CTR); > + AHB_WRITE(hci, hci->phys_base + OHCI_OFFSET, OHCI_BASEAD); > + AHB_WRITE(hci, hci->phys_base + EHCI_OFFSET, EHCI_BASEAD); > + > + data = SERREN | PERREN | MASTEREN | MEMEN; > + AHB_WRITE(hci, data, OHCI_CMND_STS); > + AHB_WRITE(hci, data, EHCI_CMND_STS); > + > + /* enable pci interrupt */ > + data = __raw_readl(hci->base + PCI_INT_ENABLE); > + data |= USBH_PMEEN | USBH_INTBEN | USBH_INTAEN; > + AHB_WRITE(hci, data, PCI_INT_ENABLE); Are these setting Renesas mobile "Common" ??? I don't think so. It is R8A7740 specific settings Best regards --- Kuninori Morimoto -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
