usb: dwc3: add support for AMD Nolan platform

This patch adds support for AMD Nolan (NL) FPGA and SoC platform.

Cc: Jason Chang <jason.chang@amd.com>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index ada975f..7c4faf7 100644 (file)
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -145,6 +145,31 @@ static int dwc3_pci_probe(struct pci_dev *pci,
        res[1].name     = "dwc_usb3";
        res[1].flags    = IORESOURCE_IRQ;
 
+       if (pci->vendor == PCI_VENDOR_ID_AMD &&
+                       pci->device == PCI_DEVICE_ID_AMD_NL_USB) {
+               dwc3_pdata.has_lpm_erratum = true;
+               dwc3_pdata.lpm_nyet_threshold = 0xf;
+
+               dwc3_pdata.u2exit_lfps_quirk = true;
+               dwc3_pdata.u2ss_inp3_quirk = true;
+               dwc3_pdata.req_p1p2p3_quirk = true;
+               dwc3_pdata.del_p1p2p3_quirk = true;
+               dwc3_pdata.del_phy_power_chg_quirk = true;
+               dwc3_pdata.lfps_filter_quirk = true;
+               dwc3_pdata.rx_detect_poll_quirk = true;
+
+               dwc3_pdata.tx_de_emphasis_quirk = true;
+               dwc3_pdata.tx_de_emphasis = 1;
+
+               /*
+                * FIXME these quirks should be removed when AMD NL
+                * taps out
+                */
+               dwc3_pdata.disable_scramble_quirk = true;
+               dwc3_pdata.dis_u3_susphy_quirk = true;
+               dwc3_pdata.dis_u2_susphy_quirk = true;
+       }
+
        ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res));
        if (ret) {
                dev_err(dev, "couldn't add resources to dwc3 device\n");
@@ -194,6 +219,7 @@ static const struct pci_device_id dwc3_pci_id_table[] = {
        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BSW), },
        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT), },
        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MRFLD), },
+       { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB), },
        {  }    /* Terminating Entry */
 };
 MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);