SPDX: Convert all of our single license tags to Linux Kernel style

[u-boot] / drivers / usb / host / xhci-pci.c

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 361fccebf728c1c0a8cabdb269649ac89e88b0e9..e8fd6bf6ae08fdcad981259ff09aa8d8444dc4fe 100644 (file)
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -1,60 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2015, Google, Inc
  * Written by Simon Glass <sjg@chromium.org>
  * All rights reserved.
- *
- * SPDX-License-Identifier:    GPL-2.0
  */
 
 #include <common.h>
-#include <errno.h>
+#include <dm.h>
 #include <pci.h>
 #include <usb.h>
-
 #include "xhci.h"
 
-/*
- * Create the appropriate control structures to manage a new XHCI host
- * controller.
- */
-int xhci_hcd_init(int index, struct xhci_hccr **ret_hccr,
-                 struct xhci_hcor **ret_hcor)
+static void xhci_pci_init(struct udevice *dev, struct xhci_hccr **ret_hccr,
+                         struct xhci_hcor **ret_hcor)
 {
        struct xhci_hccr *hccr;
        struct xhci_hcor *hcor;
-       pci_dev_t pdev;
-       uint32_t cmd;
-       int len;
-
-       pdev = pci_find_class(PCI_CLASS_SERIAL_USB_XHCI, index);
-       if (pdev < 0) {
-               printf("XHCI host controller not found\n");
-               return -1;
-       }
+       u32 cmd;
 
-       hccr = (struct xhci_hccr *)pci_map_bar(pdev,
+       hccr = (struct xhci_hccr *)dm_pci_map_bar(dev,
                        PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
-       len = HC_LENGTH(xhci_readl(&hccr->cr_capbase));
-       hcor = (struct xhci_hcor *)((uint32_t)hccr + len);
+       hcor = (struct xhci_hcor *)((uintptr_t) hccr +
+                       HC_LENGTH(xhci_readl(&hccr->cr_capbase)));
 
        debug("XHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
-             (uint32_t)hccr, (uint32_t)hcor, len);
+             (u32)hccr, (u32)hcor,
+             (u32)HC_LENGTH(xhci_readl(&hccr->cr_capbase)));
 
        *ret_hccr = hccr;
        *ret_hcor = hcor;
 
        /* enable busmaster */
-       pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
+       dm_pci_read_config32(dev, PCI_COMMAND, &cmd);
        cmd |= PCI_COMMAND_MASTER;
-       pci_write_config_dword(pdev, PCI_COMMAND, cmd);
-
-       return 0;
+       dm_pci_write_config32(dev, PCI_COMMAND, cmd);
 }
 
-/*
- * Destroy the appropriate control structures corresponding * to the XHCI host
- * controller
- */
-void xhci_hcd_stop(int index)
+static int xhci_pci_probe(struct udevice *dev)
 {
+       struct xhci_hccr *hccr;
+       struct xhci_hcor *hcor;
+
+       xhci_pci_init(dev, &hccr, &hcor);
+
+       return xhci_register(dev, hccr, hcor);
 }
+
+static const struct udevice_id xhci_pci_ids[] = {
+       { .compatible = "xhci-pci" },
+       { }
+};
+
+U_BOOT_DRIVER(xhci_pci) = {
+       .name   = "xhci_pci",
+       .id     = UCLASS_USB,
+       .probe = xhci_pci_probe,
+       .remove = xhci_deregister,
+       .of_match = xhci_pci_ids,
+       .ops    = &xhci_usb_ops,
+       .platdata_auto_alloc_size = sizeof(struct usb_platdata),
+       .priv_auto_alloc_size = sizeof(struct xhci_ctrl),
+       .flags  = DM_FLAG_ALLOC_PRIV_DMA,
+};
+
+static struct pci_device_id xhci_pci_supported[] = {
+       { PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_XHCI, ~0) },
+       {},
+};
+
+U_BOOT_PCI_DEVICE(xhci_pci, xhci_pci_supported);