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usb: dwc2: force to host mode if not support HNP/SRP
In current code, after running the command of "usb start", the controller will keep in otg mode and can't switch to host mode if not support SNP/SRP capability. So add the property of "hnp-srp-disable" in the DTS to config the contrller work in force mode of host. Signed-off-by: Meng Dongyang <daniel.meng@rock-chips.com>
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parent
b9f7d88174
commit
c65a34942e
1 changed files with 16 additions and 3 deletions
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@ -43,6 +43,7 @@ struct dwc2_priv {
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struct dwc2_core_regs *regs;
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int root_hub_devnum;
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bool ext_vbus;
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bool hnp_srp_disable;
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bool oc_disable;
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};
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@ -394,6 +395,9 @@ static void dwc_otg_core_init(struct dwc2_priv *priv)
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usbcfg |= DWC2_GUSBCFG_ULPI_CLK_SUS_M;
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}
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#endif
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if (priv->hnp_srp_disable)
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usbcfg |= DWC2_GUSBCFG_FORCEHOSTMODE;
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writel(usbcfg, ®s->gusbcfg);
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/* Program the GAHBCFG Register. */
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@ -422,12 +426,16 @@ static void dwc_otg_core_init(struct dwc2_priv *priv)
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writel(ahbcfg, ®s->gahbcfg);
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/* Program the GUSBCFG register for HNP/SRP. */
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setbits_le32(®s->gusbcfg, DWC2_GUSBCFG_HNPCAP | DWC2_GUSBCFG_SRPCAP);
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/* Program the capabilities in GUSBCFG Register */
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usbcfg = 0;
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if (!priv->hnp_srp_disable)
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usbcfg |= DWC2_GUSBCFG_HNPCAP | DWC2_GUSBCFG_SRPCAP;
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#ifdef CONFIG_DWC2_IC_USB_CAP
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setbits_le32(®s->gusbcfg, DWC2_GUSBCFG_IC_USB_CAP);
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usbcfg |= DWC2_GUSBCFG_IC_USB_CAP;
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#endif
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setbits_le32(®s->gusbcfg, usbcfg);
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}
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/*
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@ -1244,6 +1252,11 @@ static int dwc2_usb_ofdata_to_platdata(struct udevice *dev)
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if (prop)
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priv->oc_disable = true;
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prop = fdt_getprop(gd->fdt_blob, dev_of_offset(dev),
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"hnp-srp-disable", NULL);
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if (prop)
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priv->hnp_srp_disable = true;
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return 0;
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}
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