1 /* 2 * (C) Copyright 2009 Freescale Semiconductor, Inc. 3 * 4 * (C) Copyright 2008, Excito Elektronik i Sk=E5ne AB 5 * 6 * Author: Tor Krill tor@excito.com 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 */ 23 24 #include <common.h> 25 #include <pci.h> 26 #include <usb.h> 27 #include <asm/io.h> 28 #include <usb/ehci-fsl.h> 29 30 #include "ehci.h" 31 #include "ehci-core.h" 32 33 /* 34 * Create the appropriate control structures to manage 35 * a new EHCI host controller. 36 * 37 * Excerpts from linux ehci fsl driver. 38 */ 39 int ehci_hcd_init(void) 40 { 41 struct usb_ehci *ehci; 42 43 ehci = (struct usb_ehci *)CONFIG_SYS_MPC8xxx_USB_ADDR; 44 hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength); 45 hcor = (struct ehci_hcor *)((uint32_t) hccr + 46 HC_LENGTH(ehci_readl(&hccr->cr_capbase))); 47 48 /* Set to Host mode */ 49 setbits_le32(&ehci->usbmode, CM_HOST); 50 51 out_be32(&ehci->snoop1, SNOOP_SIZE_2GB); 52 out_be32(&ehci->snoop2, 0x80000000 | SNOOP_SIZE_2GB); 53 54 /* Init phy */ 55 if (!strcmp(getenv("usb_phy_type"), "utmi")) 56 out_le32(&(hcor->or_portsc[0]), PORT_PTS_UTMI); 57 else 58 out_le32(&(hcor->or_portsc[0]), PORT_PTS_ULPI); 59 60 /* Enable interface. */ 61 setbits_be32(&ehci->control, USB_EN); 62 63 out_be32(&ehci->prictrl, 0x0000000c); 64 out_be32(&ehci->age_cnt_limit, 0x00000040); 65 out_be32(&ehci->sictrl, 0x00000001); 66 67 in_le32(&ehci->usbmode); 68 69 return 0; 70 } 71 72 /* 73 * Destroy the appropriate control structures corresponding 74 * the the EHCI host controller. 75 */ 76 int ehci_hcd_stop(void) 77 { 78 return 0; 79 } 80