xref: /openbmc/u-boot/drivers/usb/host/ohci-da8xx.c (revision be059e88)
1 /*
2  * Copyright (C) 2012 Sughosh Ganu <urwithsughosh@gmail.com>
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <common.h>
8 
9 #include <asm/arch/da8xx-usb.h>
10 
11 int usb_cpu_init(void)
12 {
13 	/* enable psc for usb2.0 */
14 	lpsc_on(DAVINCI_LPSC_USB20);
15 
16 	/* enable psc for usb1.0 */
17 	lpsc_on(DAVINCI_LPSC_USB11);
18 
19 	/* start the on-chip usb phy and its pll */
20 	if (usb_phy_on())
21 		return 0;
22 
23 	return 1;
24 }
25 
26 int usb_cpu_stop(void)
27 {
28 	usb_phy_off();
29 
30 	/* turn off the usb clock and assert the module reset */
31 	lpsc_disable(DAVINCI_LPSC_USB11);
32 	lpsc_disable(DAVINCI_LPSC_USB20);
33 
34 	return 0;
35 }
36 
37 int usb_cpu_init_fail(void)
38 {
39 	return usb_cpu_stop();
40 }
41