diff options
| author | Patrick Delaunay | 2019-03-29 15:42:17 +0100 |
|---|---|---|
| committer | Marek Vasut | 2019-04-21 10:26:52 +0200 |
| commit | 0fdd0bc621f060fcf60fd4ba48a2a32f338ffeac (patch) | |
| tree | 5caebd7c6d8f4cef2d95dc9a53e57501e8ed9840 /drivers | |
| parent | c2c74f97afff9351077f2236ab6fa5638de9bd86 (diff) | |
usb: dwc2: Add force-b-session-valid support
Handle "force-b-session-valid" property from DT.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/gadget/dwc2_udc_otg.c | 9 | ||||
| -rw-r--r-- | drivers/usb/gadget/dwc2_udc_otg_regs.h | 8 |
2 files changed, 15 insertions, 2 deletions
diff --git a/drivers/usb/gadget/dwc2_udc_otg.c b/drivers/usb/gadget/dwc2_udc_otg.c index 8169fdbb110..146f11e7108 100644 --- a/drivers/usb/gadget/dwc2_udc_otg.c +++ b/drivers/usb/gadget/dwc2_udc_otg.c @@ -1034,6 +1034,9 @@ static int dwc2_udc_otg_ofdata_to_platdata(struct udevice *dev) "g-np-tx-fifo-size", 0); platdata->tx_fifo_sz = dev_read_u32_default(dev, "g-tx-fifo-size", 0); + platdata->force_b_session_valid = + dev_read_bool(dev, "force-b-session-valid"); + return 0; } @@ -1088,6 +1091,8 @@ static int dwc2_udc_otg_probe(struct udevice *dev) { struct dwc2_plat_otg_data *platdata = dev_get_platdata(dev); struct dwc2_priv_data *priv = dev_get_priv(dev); + struct dwc2_usbotg_reg *usbotg_reg = + (struct dwc2_usbotg_reg *)platdata->regs_otg; int ret; ret = dwc2_udc_otg_clk_init(dev, &priv->clks); @@ -1102,6 +1107,10 @@ static int dwc2_udc_otg_probe(struct udevice *dev) if (ret) return ret; + if (platdata->force_b_session_valid) + /* Override B session bits : value and enable */ + setbits_le32(&usbotg_reg->gotgctl, B_VALOEN | B_VALOVAL); + ret = dwc2_udc_probe(platdata); if (ret) return ret; diff --git a/drivers/usb/gadget/dwc2_udc_otg_regs.h b/drivers/usb/gadget/dwc2_udc_otg_regs.h index a1829b3fd12..0aee4ee9295 100644 --- a/drivers/usb/gadget/dwc2_udc_otg_regs.h +++ b/drivers/usb/gadget/dwc2_udc_otg_regs.h @@ -83,8 +83,12 @@ struct dwc2_usbotg_reg { /*definitions related to CSR setting */ /* DWC2_UDC_OTG_GOTGCTL */ -#define B_SESSION_VALID (0x1<<19) -#define A_SESSION_VALID (0x1<<18) +#define B_SESSION_VALID BIT(19) +#define A_SESSION_VALID BIT(18) +#define B_VALOVAL BIT(7) +#define B_VALOEN BIT(6) +#define A_VALOVAL BIT(5) +#define A_VALOEN BIT(4) /* DWC2_UDC_OTG_GAHBCFG */ #define PTXFE_HALF (0<<8) |