usb: dwc3: add request p1p2p3 quirk
This patch adds request P1/P2/P3 quirk for U2/U2/U3, and some special platforms can configure that if it is needed. [ balbi@ti.com : added DeviceTree binding documentation ] Signed-off-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Felipe Balbi <balbi@ti.com>hifive-unleashed-5.1
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b5a65c4063
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df31f5b3a6
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@ -20,6 +20,8 @@ Optional properties:
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- snps,lpm-nyet-threshold: LPM NYET threshold
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- snps,lpm-nyet-threshold: LPM NYET threshold
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- snps,u2exit_lfps_quirk: set if we want to enable u2exit lfps quirk
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- snps,u2exit_lfps_quirk: set if we want to enable u2exit lfps quirk
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- snps,u2ss_inp3_quirk: set if we enable P3 OK for U2/SS Inactive quirk
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- snps,u2ss_inp3_quirk: set if we enable P3 OK for U2/SS Inactive quirk
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- snps,req_p1p2p3_quirk: when set, the core will always request for
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P1/P2/P3 transition sequence.
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This is usually a subnode to DWC3 glue to which it is connected.
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This is usually a subnode to DWC3 glue to which it is connected.
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@ -377,6 +377,9 @@ static void dwc3_phy_setup(struct dwc3 *dwc)
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if (dwc->u2ss_inp3_quirk)
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if (dwc->u2ss_inp3_quirk)
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reg |= DWC3_GUSB3PIPECTL_U2SSINP3OK;
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reg |= DWC3_GUSB3PIPECTL_U2SSINP3OK;
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if (dwc->req_p1p2p3_quirk)
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reg |= DWC3_GUSB3PIPECTL_REQP1P2P3;
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dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg);
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dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg);
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mdelay(100);
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mdelay(100);
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@ -756,6 +759,8 @@ static int dwc3_probe(struct platform_device *pdev)
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"snps,u2exit_lfps_quirk");
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"snps,u2exit_lfps_quirk");
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dwc->u2ss_inp3_quirk = of_property_read_bool(node,
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dwc->u2ss_inp3_quirk = of_property_read_bool(node,
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"snps,u2ss_inp3_quirk");
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"snps,u2ss_inp3_quirk");
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dwc->req_p1p2p3_quirk = of_property_read_bool(node,
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"snps,req_p1p2p3_quirk");
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} else if (pdata) {
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} else if (pdata) {
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dwc->maximum_speed = pdata->maximum_speed;
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dwc->maximum_speed = pdata->maximum_speed;
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dwc->has_lpm_erratum = pdata->has_lpm_erratum;
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dwc->has_lpm_erratum = pdata->has_lpm_erratum;
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@ -768,6 +773,7 @@ static int dwc3_probe(struct platform_device *pdev)
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dwc->disable_scramble_quirk = pdata->disable_scramble_quirk;
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dwc->disable_scramble_quirk = pdata->disable_scramble_quirk;
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dwc->u2exit_lfps_quirk = pdata->u2exit_lfps_quirk;
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dwc->u2exit_lfps_quirk = pdata->u2exit_lfps_quirk;
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dwc->u2ss_inp3_quirk = pdata->u2ss_inp3_quirk;
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dwc->u2ss_inp3_quirk = pdata->u2ss_inp3_quirk;
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dwc->req_p1p2p3_quirk = pdata->req_p1p2p3_quirk;
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}
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}
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/* default to superspeed if no maximum_speed passed */
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/* default to superspeed if no maximum_speed passed */
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@ -177,6 +177,7 @@
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/* Global USB3 PIPE Control Register */
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/* Global USB3 PIPE Control Register */
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#define DWC3_GUSB3PIPECTL_PHYSOFTRST (1 << 31)
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#define DWC3_GUSB3PIPECTL_PHYSOFTRST (1 << 31)
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#define DWC3_GUSB3PIPECTL_U2SSINP3OK (1 << 29)
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#define DWC3_GUSB3PIPECTL_U2SSINP3OK (1 << 29)
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#define DWC3_GUSB3PIPECTL_REQP1P2P3 (1 << 24)
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#define DWC3_GUSB3PIPECTL_SUSPHY (1 << 17)
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#define DWC3_GUSB3PIPECTL_SUSPHY (1 << 17)
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/* Global TX Fifo Size Register */
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/* Global TX Fifo Size Register */
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@ -683,6 +684,7 @@ struct dwc3_scratchpad_array {
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* @disable_scramble_quirk: set if we enable the disable scramble quirk
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* @disable_scramble_quirk: set if we enable the disable scramble quirk
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* @u2exit_lfps_quirk: set if we enable u2exit lfps quirk
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* @u2exit_lfps_quirk: set if we enable u2exit lfps quirk
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* @u2ss_inp3_quirk: set if we enable P3 OK for U2/SS Inactive quirk
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* @u2ss_inp3_quirk: set if we enable P3 OK for U2/SS Inactive quirk
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* @req_p1p2p3_quirk: set if we enable request p1p2p3 quirk
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*/
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*/
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struct dwc3 {
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struct dwc3 {
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struct usb_ctrlrequest *ctrl_req;
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struct usb_ctrlrequest *ctrl_req;
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@ -793,6 +795,7 @@ struct dwc3 {
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unsigned disable_scramble_quirk:1;
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unsigned disable_scramble_quirk:1;
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unsigned u2exit_lfps_quirk:1;
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unsigned u2exit_lfps_quirk:1;
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unsigned u2ss_inp3_quirk:1;
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unsigned u2ss_inp3_quirk:1;
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unsigned req_p1p2p3_quirk:1;
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};
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};
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/* -------------------------------------------------------------------------- */
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/* -------------------------------------------------------------------------- */
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@ -31,4 +31,5 @@ struct dwc3_platform_data {
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unsigned has_lpm_erratum:1;
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unsigned has_lpm_erratum:1;
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unsigned u2exit_lfps_quirk:1;
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unsigned u2exit_lfps_quirk:1;
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unsigned u2ss_inp3_quirk:1;
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unsigned u2ss_inp3_quirk:1;
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unsigned req_p1p2p3_quirk:1;
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};
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};
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