diff options
| author | Felipe Balbi <balbi@ti.com> | 2012-01-18 16:32:29 (GMT) |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2012-02-06 09:48:36 (GMT) |
| commit | 8db7ed15f2557e26371e4b2d98fee290d992b715 (patch) | |
| tree | eca914c4562605bbf091f3ede5d55abd2c7c024a | |
| parent | 457e84b6624b4d97e6ffae437887ea51a22d54a0 (diff) | |
| download | linux-fsl-qoriq-8db7ed15f2557e26371e4b2d98fee290d992b715.tar.xz | |
usb: dwc3: gadget: start core on Rx.Detect
When we set Run/Stop bit, we also move the
core to Rx.Detect state so that USB3 handshake
can start from a known location.
Signed-off-by: Felipe Balbi <balbi@ti.com>
| -rw-r--r-- | drivers/usb/dwc3/core.h | 9 | ||||
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 9 |
2 files changed, 15 insertions, 3 deletions
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 123c3aa..71d958a 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -202,6 +202,15 @@ #define DWC3_DCTL_APPL1RES (1 << 23) +#define DWC3_DCTL_TRGTULST_MASK (0x0f << 17) +#define DWC3_DCTL_TRGTULST(n) ((n) << 17) + +#define DWC3_DCTL_TRGTULST_U2 (DWC3_DCTL_TRGTULST(2)) +#define DWC3_DCTL_TRGTULST_U3 (DWC3_DCTL_TRGTULST(3)) +#define DWC3_DCTL_TRGTULST_SS_DIS (DWC3_DCTL_TRGTULST(4)) +#define DWC3_DCTL_TRGTULST_RX_DET (DWC3_DCTL_TRGTULST(5)) +#define DWC3_DCTL_TRGTULST_SS_INACT (DWC3_DCTL_TRGTULST(6)) + #define DWC3_DCTL_INITU2ENA (1 << 12) #define DWC3_DCTL_ACCEPTU2ENA (1 << 11) #define DWC3_DCTL_INITU1ENA (1 << 10) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 7913d1b..2c4482f 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1313,10 +1313,13 @@ static void dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on) u32 timeout = 500; reg = dwc3_readl(dwc->regs, DWC3_DCTL); - if (is_on) - reg |= DWC3_DCTL_RUN_STOP; - else + if (is_on) { + reg &= ~DWC3_DCTL_TRGTULST_MASK; + reg |= (DWC3_DCTL_RUN_STOP + | DWC3_DCTL_TRGTULST_RX_DET); + } else { reg &= ~DWC3_DCTL_RUN_STOP; + } dwc3_writel(dwc->regs, DWC3_DCTL, reg); |