diff options
| -rw-r--r-- | drivers/usb/host/ehci-fsl.c | 6 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-fsl.h | 1 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 15 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-mxc.c | 13 |
4 files changed, 20 insertions, 15 deletions
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index a416421abfa2..8600317bd60b 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -233,8 +233,6 @@ static void mpc83xx_usb_setup(struct usb_hcd *hcd) mpc83xx_setup_phy(ehci, pdata->phy_mode, 1); } - /* put controller in host mode. */ - ehci_writel(ehci, 0x00000003, non_ehci + FSL_SOC_USB_USBMODE); #ifdef CONFIG_PPC_85xx out_be32(non_ehci + FSL_SOC_USB_PRICTRL, 0x00000008); out_be32(non_ehci + FSL_SOC_USB_AGECNTTHRSH, 0x00000080); @@ -270,6 +268,8 @@ static int ehci_fsl_setup(struct usb_hcd *hcd) /* cache this readonly data; minimize chip reads */ ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); + hcd->has_tt = 1; + retval = ehci_halt(ehci); if (retval) return retval; @@ -279,8 +279,6 @@ static int ehci_fsl_setup(struct usb_hcd *hcd) if (retval) return retval; - hcd->has_tt = 1; - ehci->sbrn = 0x20; ehci_reset(ehci); diff --git a/drivers/usb/host/ehci-fsl.h b/drivers/usb/host/ehci-fsl.h index b5e59db53347..eb537aa54610 100644 --- a/drivers/usb/host/ehci-fsl.h +++ b/drivers/usb/host/ehci-fsl.h @@ -27,7 +27,6 @@ #define PORT_PTS_SERIAL (3<<30) #define PORT_PTS_PTW (1<<28) #define FSL_SOC_USB_PORTSC2 0x188 -#define FSL_SOC_USB_USBMODE 0x1a8 #define FSL_SOC_USB_SNOOP1 0x400 /* NOTE: big-endian */ #define FSL_SOC_USB_SNOOP2 0x404 /* NOTE: big-endian */ #define FSL_SOC_USB_AGECNTTHRSH 0x408 /* NOTE: big-endian */ diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 34a928d3b7d2..15fe3ecd203b 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -194,6 +194,17 @@ static int handshake (struct ehci_hcd *ehci, void __iomem *ptr, return -ETIMEDOUT; } +/* check TDI/ARC silicon is in host mode */ +static int tdi_in_host_mode (struct ehci_hcd *ehci) +{ + u32 __iomem *reg_ptr; + u32 tmp; + + reg_ptr = (u32 __iomem *)(((u8 __iomem *)ehci->regs) + USBMODE); + tmp = ehci_readl(ehci, reg_ptr); + return (tmp & 3) == USBMODE_CM_HC; +} + /* force HC to halt state from unknown (EHCI spec section 2.3) */ static int ehci_halt (struct ehci_hcd *ehci) { @@ -202,6 +213,10 @@ static int ehci_halt (struct ehci_hcd *ehci) /* disable any irqs left enabled by previous code */ ehci_writel(ehci, 0, &ehci->regs->intr_enable); + if (ehci_is_TDI(ehci) && tdi_in_host_mode(ehci) == 0) { + return 0; + } + if ((temp & STS_HALT) != 0) return 0; diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c index a8ad8ac120a2..ac9c4d7c44af 100644 --- a/drivers/usb/host/ehci-mxc.c +++ b/drivers/usb/host/ehci-mxc.c @@ -26,9 +26,6 @@ #include <mach/mxc_ehci.h> #define ULPI_VIEWPORT_OFFSET 0x170 -#define PORTSC_OFFSET 0x184 -#define USBMODE_OFFSET 0x1a8 -#define USBMODE_CM_HOST 3 struct ehci_mxc_priv { struct clk *usbclk, *ahbclk; @@ -51,6 +48,8 @@ static int ehci_mxc_setup(struct usb_hcd *hcd) /* cache this readonly data; minimize chip reads */ ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); + hcd->has_tt = 1; + retval = ehci_halt(ehci); if (retval) return retval; @@ -60,8 +59,6 @@ static int ehci_mxc_setup(struct usb_hcd *hcd) if (retval) return retval; - hcd->has_tt = 1; - ehci->sbrn = 0x20; ehci_reset(ehci); @@ -191,12 +188,8 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev) clk_enable(priv->ahbclk); } - /* set USBMODE to host mode */ - temp = readl(hcd->regs + USBMODE_OFFSET); - writel(temp | USBMODE_CM_HOST, hcd->regs + USBMODE_OFFSET); - /* set up the PORTSCx register */ - writel(pdata->portsc, hcd->regs + PORTSC_OFFSET); + ehci_writel(ehci, pdata->portsc, &ehci->regs->port_status[0]); mdelay(10); /* setup specific usb hw */ |