xref: /openbmc/u-boot/drivers/usb/host/ehci-spear.c (revision 301e8038)
1 /*
2  * (C) Copyright 2010
3  * Armando Visconti, ST Micoelectronics, <armando.visconti@st.com>.
4  *
5  * (C) Copyright 2009
6  * Marvell Semiconductor <www.marvell.com>
7  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
8  *
9  * See file CREDITS for list of people who contributed to this
10  * project.
11  *
12  * This program is free software; you can redistribute it and/or
13  * modify it under the terms of the GNU General Public License as
14  * published by the Free Software Foundation; either version 2 of
15  * the License, or (at your option) any later version.
16  *
17  * This program is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20  * GNU General Public License for more details.
21  *
22  * You should have received a copy of the GNU General Public License
23  * along with this program; if not, write to the Free Software
24  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
25  * MA 02110-1301 USA
26  */
27 
28 #include <common.h>
29 #include <asm/io.h>
30 #include <usb.h>
31 #include "ehci.h"
32 #include <asm/arch/hardware.h>
33 
34 
35 /*
36  * Create the appropriate control structures to manage
37  * a new EHCI host controller.
38  */
39 int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor)
40 {
41 	*hccr = (struct ehci_hccr *)(CONFIG_SYS_UHC0_EHCI_BASE + 0x100);
42 	*hcor = (struct ehci_hcor *)((uint32_t)*hccr
43 			+ HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
44 
45 	debug("SPEAr-ehci: init hccr %x and hcor %x hc_length %d\n",
46 		(uint32_t)*hccr, (uint32_t)*hcor,
47 		(uint32_t)HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
48 
49 	return 0;
50 }
51 
52 /*
53  * Destroy the appropriate control structures corresponding
54  * the the EHCI host controller.
55  */
56 int ehci_hcd_stop(int index)
57 {
58 	return 0;
59 }
60