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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 commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
92 lines
2.1 KiB
C
92 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2014, Xilinx, Inc
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*
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* USB Low level initialization(Specific to zynq)
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*/
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#include <common.h>
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#include <dm.h>
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#include <usb.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/io.h>
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#include <usb/ehci-ci.h>
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#include <usb/ulpi.h>
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#include "ehci.h"
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struct zynq_ehci_priv {
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struct ehci_ctrl ehcictrl;
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struct usb_ehci *ehci;
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};
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static int ehci_zynq_of_to_plat(struct udevice *dev)
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{
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struct zynq_ehci_priv *priv = dev_get_priv(dev);
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priv->ehci = dev_read_addr_ptr(dev);
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if (!priv->ehci)
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return -EINVAL;
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return 0;
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}
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static int ehci_zynq_probe(struct udevice *dev)
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{
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struct usb_plat *plat = dev_get_plat(dev);
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struct zynq_ehci_priv *priv = dev_get_priv(dev);
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struct ehci_hccr *hccr;
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struct ehci_hcor *hcor;
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struct ulpi_viewport ulpi_vp;
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/* Used for writing the ULPI data address */
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struct ulpi_regs *ulpi = (struct ulpi_regs *)0;
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int ret;
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hccr = (struct ehci_hccr *)((uint32_t)&priv->ehci->caplength);
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hcor = (struct ehci_hcor *)((uint32_t) hccr +
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HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
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ulpi_vp.viewport_addr = (u32)&priv->ehci->ulpi_viewpoint;
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ulpi_vp.port_num = 0;
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ret = ulpi_init(&ulpi_vp);
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if (ret) {
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puts("zynq ULPI viewport init failed\n");
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return -1;
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}
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/* ULPI set flags */
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ulpi_write(&ulpi_vp, &ulpi->otg_ctrl,
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ULPI_OTG_DP_PULLDOWN | ULPI_OTG_DM_PULLDOWN |
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ULPI_OTG_EXTVBUSIND);
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ulpi_write(&ulpi_vp, &ulpi->function_ctrl,
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ULPI_FC_FULL_SPEED | ULPI_FC_OPMODE_NORMAL |
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ULPI_FC_SUSPENDM);
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ulpi_write(&ulpi_vp, &ulpi->iface_ctrl, 0);
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/* Set VBus */
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ulpi_write(&ulpi_vp, &ulpi->otg_ctrl_set,
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ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
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return ehci_register(dev, hccr, hcor, NULL, 0, plat->init_type);
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}
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static const struct udevice_id ehci_zynq_ids[] = {
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{ .compatible = "xlnx,zynq-usb-2.20a" },
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{ }
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};
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U_BOOT_DRIVER(ehci_zynq) = {
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.name = "ehci_zynq",
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.id = UCLASS_USB,
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.of_match = ehci_zynq_ids,
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.of_to_plat = ehci_zynq_of_to_plat,
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.probe = ehci_zynq_probe,
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.remove = ehci_deregister,
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.ops = &ehci_usb_ops,
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.plat_auto = sizeof(struct usb_plat),
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.priv_auto = sizeof(struct zynq_ehci_priv),
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.flags = DM_FLAG_ALLOC_PRIV_DMA,
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};
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