u-boot/drivers/usb/host/ehci-generic.c
Simon Glass a821c4af79 dm: Rename dev_addr..() functions
These support the flat device tree. We want to use the dev_read_..()
prefix for functions that support both flat tree and live tree. So rename
the existing functions to avoid confusion.

In the end we will have:

   1. dev_read_addr...()    - works on devices, supports flat/live tree
   2. devfdt_get_addr...()  - current functions, flat tree only
   3. of_get_address() etc. - new functions, live tree only

All drivers will be written to use 1. That function will in turn call
either 2 or 3 depending on whether the flat or live tree is in use.

Note this involves changing some dead code - the imx_lpi2c.c file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 07:03:01 -06:00

74 lines
1.5 KiB
C

/*
* Copyright (C) 2015 Alexey Brodkin <abrodkin@synopsys.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <clk.h>
#include <reset.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 clk clk;
int ret;
ret = clk_get_by_index(dev, i, &clk);
if (ret < 0)
break;
if (clk_enable(&clk))
printf("failed to enable clock %d\n", i);
clk_free(&clk);
}
for (i = 0; ; i++) {
struct reset_ctl reset;
int ret;
ret = reset_get_by_index(dev, i, &reset);
if (ret < 0)
break;
if (reset_deassert(&reset))
printf("failed to deassert reset %d\n", i);
reset_free(&reset);
}
hccr = map_physmem(devfdt_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 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_deregister,
.ops = &ehci_usb_ops,
.priv_auto_alloc_size = sizeof(struct generic_ehci),
.flags = DM_FLAG_ALLOC_PRIV_DMA,
};