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https://github.com/smaeul/u-boot.git
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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
103 lines
2.3 KiB
C
103 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2015 Marvell International Ltd.
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*
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* MVEBU USB HOST xHCI Controller
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*/
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#include <common.h>
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#include <dm.h>
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#include <fdtdec.h>
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#include <log.h>
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#include <usb.h>
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#include <power/regulator.h>
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#include <asm/gpio.h>
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#include <usb/xhci.h>
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struct mvebu_xhci_plat {
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fdt_addr_t hcd_base;
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};
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/**
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* Contains pointers to register base addresses
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* for the usb controller.
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*/
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struct mvebu_xhci {
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struct xhci_ctrl ctrl; /* Needs to come first in this struct! */
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struct usb_plat usb_plat;
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struct xhci_hccr *hcd;
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};
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/*
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* Dummy implementation that can be overwritten by a board
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* specific function
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*/
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__weak int board_xhci_enable(fdt_addr_t base)
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{
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return 0;
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}
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static int xhci_usb_probe(struct udevice *dev)
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{
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struct mvebu_xhci_plat *plat = dev_get_plat(dev);
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struct mvebu_xhci *ctx = dev_get_priv(dev);
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struct xhci_hcor *hcor;
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int len, ret;
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struct udevice *regulator;
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ctx->hcd = (struct xhci_hccr *)plat->hcd_base;
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len = HC_LENGTH(xhci_readl(&ctx->hcd->cr_capbase));
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hcor = (struct xhci_hcor *)((uintptr_t)ctx->hcd + len);
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ret = device_get_supply_regulator(dev, "vbus-supply", ®ulator);
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if (!ret) {
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ret = regulator_set_enable(regulator, true);
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if (ret) {
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printf("Failed to turn ON the VBUS regulator\n");
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return ret;
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}
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}
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/* Enable USB xHCI (VBUS, reset etc) in board specific code */
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board_xhci_enable(devfdt_get_addr_index(dev, 1));
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return xhci_register(dev, ctx->hcd, hcor);
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}
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static int xhci_usb_of_to_plat(struct udevice *dev)
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{
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struct mvebu_xhci_plat *plat = dev_get_plat(dev);
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/*
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* Get the base address for XHCI controller from the device node
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*/
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plat->hcd_base = dev_read_addr(dev);
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if (plat->hcd_base == FDT_ADDR_T_NONE) {
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debug("Can't get the XHCI register base address\n");
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return -ENXIO;
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}
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return 0;
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}
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static const struct udevice_id xhci_usb_ids[] = {
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{ .compatible = "marvell,armada3700-xhci" },
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{ .compatible = "marvell,armada-380-xhci" },
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{ .compatible = "marvell,armada-8k-xhci" },
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{ }
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};
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U_BOOT_DRIVER(usb_xhci) = {
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.name = "xhci_mvebu",
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.id = UCLASS_USB,
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.of_match = xhci_usb_ids,
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.of_to_plat = xhci_usb_of_to_plat,
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.probe = xhci_usb_probe,
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.remove = xhci_deregister,
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.ops = &xhci_usb_ops,
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.plat_auto = sizeof(struct mvebu_xhci_plat),
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.priv_auto = sizeof(struct mvebu_xhci),
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.flags = DM_FLAG_ALLOC_PRIV_DMA,
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};
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