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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2015 Marvell International Ltd.
- *
- * MVEBU USB HOST xHCI Controller
- */
- #include <common.h>
- #include <dm.h>
- #include <fdtdec.h>
- #include <usb.h>
- #include <power/regulator.h>
- #include <asm/gpio.h>
- #include <usb/xhci.h>
- struct mvebu_xhci_platdata {
- fdt_addr_t hcd_base;
- };
- /**
- * Contains pointers to register base addresses
- * for the usb controller.
- */
- struct mvebu_xhci {
- struct xhci_ctrl ctrl; /* Needs to come first in this struct! */
- struct usb_platdata usb_plat;
- struct xhci_hccr *hcd;
- };
- /*
- * Dummy implementation that can be overwritten by a board
- * specific function
- */
- __weak int board_xhci_enable(fdt_addr_t base)
- {
- return 0;
- }
- static int xhci_usb_probe(struct udevice *dev)
- {
- struct mvebu_xhci_platdata *plat = dev_get_platdata(dev);
- struct mvebu_xhci *ctx = dev_get_priv(dev);
- struct xhci_hcor *hcor;
- int len, ret;
- struct udevice *regulator;
- ctx->hcd = (struct xhci_hccr *)plat->hcd_base;
- len = HC_LENGTH(xhci_readl(&ctx->hcd->cr_capbase));
- hcor = (struct xhci_hcor *)((uintptr_t)ctx->hcd + len);
- ret = device_get_supply_regulator(dev, "vbus-supply", ®ulator);
- if (!ret) {
- ret = regulator_set_enable(regulator, true);
- if (ret) {
- printf("Failed to turn ON the VBUS regulator\n");
- return ret;
- }
- }
- /* Enable USB xHCI (VBUS, reset etc) in board specific code */
- board_xhci_enable(devfdt_get_addr_index(dev, 1));
- return xhci_register(dev, ctx->hcd, hcor);
- }
- static int xhci_usb_ofdata_to_platdata(struct udevice *dev)
- {
- struct mvebu_xhci_platdata *plat = dev_get_platdata(dev);
- /*
- * Get the base address for XHCI controller from the device node
- */
- plat->hcd_base = devfdt_get_addr(dev);
- if (plat->hcd_base == FDT_ADDR_T_NONE) {
- debug("Can't get the XHCI register base address\n");
- return -ENXIO;
- }
- return 0;
- }
- static const struct udevice_id xhci_usb_ids[] = {
- { .compatible = "marvell,armada3700-xhci" },
- { .compatible = "marvell,armada-380-xhci" },
- { .compatible = "marvell,armada-8k-xhci" },
- { }
- };
- U_BOOT_DRIVER(usb_xhci) = {
- .name = "xhci_mvebu",
- .id = UCLASS_USB,
- .of_match = xhci_usb_ids,
- .ofdata_to_platdata = xhci_usb_ofdata_to_platdata,
- .probe = xhci_usb_probe,
- .remove = xhci_deregister,
- .ops = &xhci_usb_ops,
- .platdata_auto_alloc_size = sizeof(struct mvebu_xhci_platdata),
- .priv_auto_alloc_size = sizeof(struct mvebu_xhci),
- .flags = DM_FLAG_ALLOC_PRIV_DMA,
- };
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