[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/usb/host/xhci-plat.c b/src/kernel/linux/v4.14/drivers/usb/host/xhci-plat.c
new file mode 100644
index 0000000..2a73592
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/usb/host/xhci-plat.c
@@ -0,0 +1,445 @@
+/*
+ * xhci-plat.c - xHCI host controller driver platform Bus Glue.
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ * Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ *
+ * A lot of code borrowed from the Linux xHCI driver.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/usb/phy.h>
+#include <linux/slab.h>
+#include <linux/acpi.h>
+
+#include "xhci.h"
+#include "xhci-plat.h"
+#include "xhci-mvebu.h"
+#include "xhci-rcar.h"
+
+static struct hc_driver __read_mostly xhci_plat_hc_driver;
+
+static int xhci_plat_setup(struct usb_hcd *hcd);
+static int xhci_plat_start(struct usb_hcd *hcd);
+
+static const struct xhci_driver_overrides xhci_plat_overrides __initconst = {
+ .extra_priv_size = sizeof(struct xhci_plat_priv),
+ .reset = xhci_plat_setup,
+ .start = xhci_plat_start,
+};
+
+static void xhci_priv_plat_start(struct usb_hcd *hcd)
+{
+ struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
+
+ if (priv->plat_start)
+ priv->plat_start(hcd);
+}
+
+static int xhci_priv_init_quirk(struct usb_hcd *hcd)
+{
+ struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
+
+ if (!priv->init_quirk)
+ return 0;
+
+ return priv->init_quirk(hcd);
+}
+
+static int xhci_priv_resume_quirk(struct usb_hcd *hcd)
+{
+ struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
+
+ if (!priv->resume_quirk)
+ return 0;
+
+ return priv->resume_quirk(hcd);
+}
+
+static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci)
+{
+ /*
+ * As of now platform drivers don't provide MSI support so we ensure
+ * here that the generic code does not try to make a pci_dev from our
+ * dev struct in order to setup MSI
+ */
+ xhci->quirks |= XHCI_PLAT;
+}
+
+/* called during probe() after chip reset completes */
+static int xhci_plat_setup(struct usb_hcd *hcd)
+{
+ int ret;
+
+
+ ret = xhci_priv_init_quirk(hcd);
+ if (ret)
+ return ret;
+
+ return xhci_gen_setup(hcd, xhci_plat_quirks);
+}
+
+static int xhci_plat_start(struct usb_hcd *hcd)
+{
+ xhci_priv_plat_start(hcd);
+ return xhci_run(hcd);
+}
+
+#ifdef CONFIG_OF
+static const struct xhci_plat_priv xhci_plat_marvell_armada = {
+ .init_quirk = xhci_mvebu_mbus_init_quirk,
+};
+
+static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen2 = {
+ .firmware_name = XHCI_RCAR_FIRMWARE_NAME_V1,
+ .init_quirk = xhci_rcar_init_quirk,
+ .plat_start = xhci_rcar_start,
+ .resume_quirk = xhci_rcar_resume_quirk,
+};
+
+static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen3 = {
+ .init_quirk = xhci_rcar_init_quirk,
+ .plat_start = xhci_rcar_start,
+ .resume_quirk = xhci_rcar_resume_quirk,
+};
+
+static const struct of_device_id usb_xhci_of_match[] = {
+ {
+ .compatible = "generic-xhci",
+ }, {
+ .compatible = "xhci-platform",
+ }, {
+ .compatible = "marvell,armada-375-xhci",
+ .data = &xhci_plat_marvell_armada,
+ }, {
+ .compatible = "marvell,armada-380-xhci",
+ .data = &xhci_plat_marvell_armada,
+ }, {
+ .compatible = "renesas,xhci-r8a7790",
+ .data = &xhci_plat_renesas_rcar_gen2,
+ }, {
+ .compatible = "renesas,xhci-r8a7791",
+ .data = &xhci_plat_renesas_rcar_gen2,
+ }, {
+ .compatible = "renesas,xhci-r8a7793",
+ .data = &xhci_plat_renesas_rcar_gen2,
+ }, {
+ .compatible = "renesas,xhci-r8a7795",
+ .data = &xhci_plat_renesas_rcar_gen3,
+ }, {
+ .compatible = "renesas,xhci-r8a7796",
+ .data = &xhci_plat_renesas_rcar_gen3,
+ }, {
+ .compatible = "renesas,rcar-gen2-xhci",
+ .data = &xhci_plat_renesas_rcar_gen2,
+ }, {
+ .compatible = "renesas,rcar-gen3-xhci",
+ .data = &xhci_plat_renesas_rcar_gen3,
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, usb_xhci_of_match);
+#endif
+
+static int xhci_plat_probe(struct platform_device *pdev)
+{
+ const struct of_device_id *match;
+ const struct hc_driver *driver;
+ struct device *sysdev;
+ struct xhci_hcd *xhci;
+ struct resource *res;
+ struct usb_hcd *hcd;
+ struct clk *clk;
+ int ret;
+ int irq;
+
+ if (usb_disabled())
+ return -ENODEV;
+
+ driver = &xhci_plat_hc_driver;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
+
+ /*
+ * sysdev must point to a device that is known to the system firmware
+ * or PCI hardware. We handle these three cases here:
+ * 1. xhci_plat comes from firmware
+ * 2. xhci_plat is child of a device from firmware (dwc3-plat)
+ * 3. xhci_plat is grandchild of a pci device (dwc3-pci)
+ */
+ for (sysdev = &pdev->dev; sysdev; sysdev = sysdev->parent) {
+ if (is_of_node(sysdev->fwnode) ||
+ is_acpi_device_node(sysdev->fwnode))
+ break;
+#ifdef CONFIG_PCI
+ else if (sysdev->bus == &pci_bus_type)
+ break;
+#endif
+ }
+
+ if (!sysdev)
+ sysdev = &pdev->dev;
+
+ /* Try to set 64-bit DMA first */
+ if (WARN_ON(!sysdev->dma_mask))
+ /* Platform did not initialize dma_mask */
+ ret = dma_coerce_mask_and_coherent(sysdev,
+ DMA_BIT_MASK(64));
+ else
+ ret = dma_set_mask_and_coherent(sysdev, DMA_BIT_MASK(64));
+
+ /* If seting 64-bit DMA mask fails, fall back to 32-bit DMA mask */
+ if (ret) {
+ ret = dma_set_mask_and_coherent(sysdev, DMA_BIT_MASK(32));
+ if (ret)
+ return ret;
+ }
+
+ pm_runtime_set_active(&pdev->dev);
+ pm_runtime_enable(&pdev->dev);
+ pm_runtime_get_noresume(&pdev->dev);
+
+ hcd = __usb_create_hcd(driver, sysdev, &pdev->dev,
+ dev_name(&pdev->dev), NULL);
+ if (!hcd) {
+ ret = -ENOMEM;
+ goto disable_runtime;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(hcd->regs)) {
+ ret = PTR_ERR(hcd->regs);
+ goto put_hcd;
+ }
+
+ hcd->rsrc_start = res->start;
+ hcd->rsrc_len = resource_size(res);
+
+ /*
+ * Not all platforms have a clk so it is not an error if the
+ * clock does not exists.
+ */
+ clk = devm_clk_get(&pdev->dev, NULL);
+ if (!IS_ERR(clk)) {
+ ret = clk_prepare_enable(clk);
+ if (ret)
+ goto put_hcd;
+ } else if (PTR_ERR(clk) == -EPROBE_DEFER) {
+ ret = -EPROBE_DEFER;
+ goto put_hcd;
+ }
+
+ xhci = hcd_to_xhci(hcd);
+ match = of_match_node(usb_xhci_of_match, pdev->dev.of_node);
+ if (match) {
+ const struct xhci_plat_priv *priv_match = match->data;
+ struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
+
+ /* Just copy data for now */
+ if (priv_match)
+ *priv = *priv_match;
+ }
+
+ device_wakeup_enable(hcd->self.controller);
+
+ xhci->clk = clk;
+ xhci->main_hcd = hcd;
+ xhci->shared_hcd = __usb_create_hcd(driver, sysdev, &pdev->dev,
+ dev_name(&pdev->dev), hcd);
+ if (!xhci->shared_hcd) {
+ ret = -ENOMEM;
+ goto disable_clk;
+ }
+
+ if (device_property_read_bool(sysdev, "usb3-lpm-capable"))
+ xhci->quirks |= XHCI_LPM_SUPPORT;
+
+ if (device_property_read_bool(&pdev->dev, "quirk-broken-port-ped"))
+ xhci->quirks |= XHCI_BROKEN_PORT_PED;
+
+ hcd->usb_phy = devm_usb_get_phy_by_phandle(sysdev, "usb-phy", 0);
+ if (IS_ERR(hcd->usb_phy)) {
+ ret = PTR_ERR(hcd->usb_phy);
+ if (ret == -EPROBE_DEFER)
+ goto put_usb3_hcd;
+ hcd->usb_phy = NULL;
+ } else {
+ ret = usb_phy_init(hcd->usb_phy);
+ if (ret)
+ goto put_usb3_hcd;
+ }
+
+ ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
+ if (ret)
+ goto disable_usb_phy;
+
+ if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
+ xhci->shared_hcd->can_do_streams = 1;
+
+ ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);
+ if (ret)
+ goto dealloc_usb2_hcd;
+
+ device_enable_async_suspend(&pdev->dev);
+ pm_runtime_put_noidle(&pdev->dev);
+
+ /*
+ * Prevent runtime pm from being on as default, users should enable
+ * runtime pm using power/control in sysfs.
+ */
+ pm_runtime_forbid(&pdev->dev);
+
+ return 0;
+
+
+dealloc_usb2_hcd:
+ usb_remove_hcd(hcd);
+
+disable_usb_phy:
+ usb_phy_shutdown(hcd->usb_phy);
+
+put_usb3_hcd:
+ usb_put_hcd(xhci->shared_hcd);
+
+disable_clk:
+ if (!IS_ERR(clk))
+ clk_disable_unprepare(clk);
+
+put_hcd:
+ usb_put_hcd(hcd);
+
+disable_runtime:
+ pm_runtime_put_noidle(&pdev->dev);
+ pm_runtime_disable(&pdev->dev);
+
+ return ret;
+}
+
+static int xhci_plat_remove(struct platform_device *dev)
+{
+ struct usb_hcd *hcd = platform_get_drvdata(dev);
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+ struct clk *clk = xhci->clk;
+ struct usb_hcd *shared_hcd = xhci->shared_hcd;
+
+ pm_runtime_get_sync(&dev->dev);
+ xhci->xhc_state |= XHCI_STATE_REMOVING;
+
+ usb_remove_hcd(shared_hcd);
+ xhci->shared_hcd = NULL;
+ usb_phy_shutdown(hcd->usb_phy);
+
+ usb_remove_hcd(hcd);
+ usb_put_hcd(shared_hcd);
+
+ if (!IS_ERR(clk))
+ clk_disable_unprepare(clk);
+ usb_put_hcd(hcd);
+
+ pm_runtime_disable(&dev->dev);
+ pm_runtime_put_noidle(&dev->dev);
+ pm_runtime_set_suspended(&dev->dev);
+
+ return 0;
+}
+
+static int __maybe_unused xhci_plat_suspend(struct device *dev)
+{
+ struct usb_hcd *hcd = dev_get_drvdata(dev);
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+
+ /*
+ * xhci_suspend() needs `do_wakeup` to know whether host is allowed
+ * to do wakeup during suspend. Since xhci_plat_suspend is currently
+ * only designed for system suspend, device_may_wakeup() is enough
+ * to dertermine whether host is allowed to do wakeup. Need to
+ * reconsider this when xhci_plat_suspend enlarges its scope, e.g.,
+ * also applies to runtime suspend.
+ */
+ return xhci_suspend(xhci, device_may_wakeup(dev));
+}
+
+static int __maybe_unused xhci_plat_resume(struct device *dev)
+{
+ struct usb_hcd *hcd = dev_get_drvdata(dev);
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+ int ret;
+
+ ret = xhci_priv_resume_quirk(hcd);
+ if (ret)
+ return ret;
+
+ return xhci_resume(xhci, 0);
+}
+
+static int __maybe_unused xhci_plat_runtime_suspend(struct device *dev)
+{
+ struct usb_hcd *hcd = dev_get_drvdata(dev);
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+
+ return xhci_suspend(xhci, true);
+}
+
+static int __maybe_unused xhci_plat_runtime_resume(struct device *dev)
+{
+ struct usb_hcd *hcd = dev_get_drvdata(dev);
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+
+ return xhci_resume(xhci, 0);
+}
+
+static const struct dev_pm_ops xhci_plat_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(xhci_plat_suspend, xhci_plat_resume)
+
+ SET_RUNTIME_PM_OPS(xhci_plat_runtime_suspend,
+ xhci_plat_runtime_resume,
+ NULL)
+};
+
+static const struct acpi_device_id usb_xhci_acpi_match[] = {
+ /* XHCI-compliant USB Controller */
+ { "PNP0D10", },
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, usb_xhci_acpi_match);
+
+static struct platform_driver usb_xhci_driver = {
+ .probe = xhci_plat_probe,
+ .remove = xhci_plat_remove,
+ .shutdown = usb_hcd_platform_shutdown,
+ .driver = {
+ .name = "xhci-hcd",
+ .pm = &xhci_plat_pm_ops,
+ .of_match_table = of_match_ptr(usb_xhci_of_match),
+ .acpi_match_table = ACPI_PTR(usb_xhci_acpi_match),
+ },
+};
+MODULE_ALIAS("platform:xhci-hcd");
+
+static int __init xhci_plat_init(void)
+{
+ xhci_init_driver(&xhci_plat_hc_driver, &xhci_plat_overrides);
+ return platform_driver_register(&usb_xhci_driver);
+}
+module_init(xhci_plat_init);
+
+static void __exit xhci_plat_exit(void)
+{
+ platform_driver_unregister(&usb_xhci_driver);
+}
+module_exit(xhci_plat_exit);
+
+MODULE_DESCRIPTION("xHCI Platform Host Controller Driver");
+MODULE_LICENSE("GPL");