blob: 1d7d28048bc1914217cb3e2e7e0709aeccace015 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
/*
* (C) Copyright 2012
* Atmel Semiconductor <www.atmel.com>
* Written-by: Bo Shen <voice.shen@atmel.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <usb.h>
#include <asm/io.h>
#include <asm/arch/clk.h>
#include "ehci.h"
int ehci_hcd_init(int index, enum usb_init_type init,
struct ehci_hccr **hccr, struct ehci_hcor **hcor)
{
/* Enable UTMI PLL */
if (at91_upll_clk_enable())
return -1;
/* Enable USB Host clock */
at91_periph_clk_enable(ATMEL_ID_UHPHS);
*hccr = (struct ehci_hccr *)ATMEL_BASE_EHCI;
*hcor = (struct ehci_hcor *)((uint32_t)*hccr +
HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
return 0;
}
int ehci_hcd_stop(int index)
{
/* Disable USB Host Clock */
at91_periph_clk_disable(ATMEL_ID_UHPHS);
/* Disable UTMI PLL */
if (at91_upll_clk_disable())
return -1;
return 0;
}
|
