mirror of
https://github.com/brain-hackers/u-boot-brain
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81c1f6f0c3
This patch adds DM based support for the xHCI USB 3.0 controller integrated in the Armada 3700 SoC. It may be extended to be used by other MVEBU SoCs as well. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Nadav Haklai <nadavh@marvell.com> Cc: Kostya Porotchkin <kostap@marvell.com> Cc: Wilson Ding <dingwei@marvell.com> Cc: Victor Gu <xigu@marvell.com> Cc: Hua Jing <jinghua@marvell.com> Cc: Terry Zhou <bjzhou@marvell.com> Cc: Hanna Hawa <hannah@marvell.com> Cc: Haim Boot <hayim@marvell.com> Acked-by: Marek Vasut <marex@denx.de>
97 lines
2.1 KiB
C
97 lines
2.1 KiB
C
/*
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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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* SPDX-License-Identifier: GPL-2.0+
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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 <usb.h>
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#include <asm/gpio.h>
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#include "xhci.h"
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DECLARE_GLOBAL_DATA_PTR;
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struct mvebu_xhci_platdata {
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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_platdata 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(void)
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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_platdata *plat = dev_get_platdata(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;
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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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/* Enable USB xHCI (VBUS, reset etc) in board specific code */
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board_xhci_enable();
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return xhci_register(dev, ctx->hcd, hcor);
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}
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static int xhci_usb_remove(struct udevice *dev)
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{
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return xhci_deregister(dev);
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}
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static int xhci_usb_ofdata_to_platdata(struct udevice *dev)
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{
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struct mvebu_xhci_platdata *plat = dev_get_platdata(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_get_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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{ }
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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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.ofdata_to_platdata = xhci_usb_ofdata_to_platdata,
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.probe = xhci_usb_probe,
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.remove = xhci_usb_remove,
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.ops = &xhci_usb_ops,
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.platdata_auto_alloc_size = sizeof(struct mvebu_xhci_platdata),
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.priv_auto_alloc_size = sizeof(struct mvebu_xhci),
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.flags = DM_FLAG_ALLOC_PRIV_DMA,
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};
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