From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001
From: Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com>
Date: Tue, 10 Oct 2023 14:33:42 +0000
Subject: Add submodule dependency files
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
---
roms/u-boot/drivers/usb/host/xhci-pci.c | 81 +++++++++++++++++++++++++++++++++
1 file changed, 81 insertions(+)
create mode 100644 roms/u-boot/drivers/usb/host/xhci-pci.c
(limited to 'roms/u-boot/drivers/usb/host/xhci-pci.c')
diff --git a/roms/u-boot/drivers/usb/host/xhci-pci.c b/roms/u-boot/drivers/usb/host/xhci-pci.c
new file mode 100644
index 000000000..aaa243f29
--- /dev/null
+++ b/roms/u-boot/drivers/usb/host/xhci-pci.c
@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2015, Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ * All rights reserved.
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <init.h>
+#include <log.h>
+#include <pci.h>
+#include <usb.h>
+#include <usb/xhci.h>
+
+static int xhci_pci_init(struct udevice *dev, struct xhci_hccr **ret_hccr,
+ struct xhci_hcor **ret_hcor)
+{
+ struct xhci_hccr *hccr;
+ struct xhci_hcor *hcor;
+ u32 cmd;
+
+ hccr = (struct xhci_hccr *)dm_pci_map_bar(dev,
+ PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
+ if (!hccr) {
+ printf("xhci-pci init cannot map PCI mem bar\n");
+ return -EIO;
+ }
+
+ hcor = (struct xhci_hcor *)((uintptr_t) hccr +
+ HC_LENGTH(xhci_readl(&hccr->cr_capbase)));
+
+ debug("XHCI-PCI init hccr %p and hcor %p hc_length %d\n",
+ hccr, hcor, (u32)HC_LENGTH(xhci_readl(&hccr->cr_capbase)));
+
+ *ret_hccr = hccr;
+ *ret_hcor = hcor;
+
+ /* enable busmaster */
+ dm_pci_read_config32(dev, PCI_COMMAND, &cmd);
+ cmd |= PCI_COMMAND_MASTER;
+ dm_pci_write_config32(dev, PCI_COMMAND, cmd);
+ return 0;
+}
+
+static int xhci_pci_probe(struct udevice *dev)
+{
+ struct xhci_hccr *hccr;
+ struct xhci_hcor *hcor;
+ int ret;
+
+ ret = xhci_pci_init(dev, &hccr, &hcor);
+ if (ret)
+ return ret;
+
+ 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,
+ .plat_auto = sizeof(struct usb_plat),
+ .priv_auto = sizeof(struct xhci_ctrl),
+ .flags = DM_FLAG_OS_PREPARE | 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);
--
cgit