mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
92 lines
2.2 KiB
C
92 lines
2.2 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_ofdata_to_platdata(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 = (struct usb_ehci *)devfdt_get_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_platdata *plat = dev_get_platdata(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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.ofdata_to_platdata = ehci_zynq_ofdata_to_platdata,
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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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.platdata_auto_alloc_size = sizeof(struct usb_platdata),
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.priv_auto_alloc_size = sizeof(struct zynq_ehci_priv),
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.flags = DM_FLAG_ALLOC_PRIV_DMA,
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};
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