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/*
* Copyright (C) 2015 Alexey Brodkin <abrodkin@synopsys.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <clk.h>
#include <asm/io.h>
#include <dm.h>
#include "ehci.h"
/*
* Even though here we don't explicitly use "struct ehci_ctrl"
* ehci_register() expects it to be the first thing that resides in
* device's private data.
*/
struct generic_ehci {
struct ehci_ctrl ctrl;
};
static int ehci_usb_probe(struct udevice *dev)
{
struct ehci_hccr *hccr;
struct ehci_hcor *hcor;
int i;
for (i = 0; ; i++) {
struct udevice *clk_dev;
int clk_id;
clk_id = clk_get_by_index(dev, i, &clk_dev);
if (clk_id < 0)
break;
if (clk_enable(clk_dev, clk_id))
printf("failed to enable clock (dev=%s, id=%d)\n",
clk_dev->name, clk_id);
}
hccr = map_physmem(dev_get_addr(dev), 0x100, MAP_NOCACHE);
hcor = (struct ehci_hcor *)((uintptr_t)hccr +
HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
return ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST);
}
static int ehci_usb_remove(struct udevice *dev)
{
return ehci_deregister(dev);
}
static const struct udevice_id ehci_usb_ids[] = {
{ .compatible = "generic-ehci" },
{ }
};
U_BOOT_DRIVER(ehci_generic) = {
.name = "ehci_generic",
.id = UCLASS_USB,
.of_match = ehci_usb_ids,
.probe = ehci_usb_probe,
.remove = ehci_usb_remove,
.ops = &ehci_usb_ops,
.priv_auto_alloc_size = sizeof(struct generic_ehci),
.flags = DM_FLAG_ALLOC_PRIV_DMA,
};
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