On Thu, Feb 14, 2013 at 10:59 AM, Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> wrote: > > 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 This is a problem only for the names, I think. It is only only rmobile as r8a7740 now to use this driver. Should we switch to ehci-r8a7740 and other? best, Nobuhiro -- Nobuhiro Iwamatsu -- 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
