diff options
Diffstat (limited to 'roms/u-boot-sam460ex/drivers/usb/host/ehci-fsl.c')
-rw-r--r-- | roms/u-boot-sam460ex/drivers/usb/host/ehci-fsl.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/roms/u-boot-sam460ex/drivers/usb/host/ehci-fsl.c b/roms/u-boot-sam460ex/drivers/usb/host/ehci-fsl.c new file mode 100644 index 000000000..c67492972 --- /dev/null +++ b/roms/u-boot-sam460ex/drivers/usb/host/ehci-fsl.c @@ -0,0 +1,79 @@ +/* + * (C) Copyright 2009 Freescale Semiconductor, Inc. + * + * (C) Copyright 2008, Excito Elektronik i Sk=E5ne AB + * + * Author: Tor Krill tor@excito.com + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <pci.h> +#include <usb.h> +#include <asm/io.h> +#include <usb/ehci-fsl.h> + +#include "ehci.h" +#include "ehci-core.h" + +/* + * Create the appropriate control structures to manage + * a new EHCI host controller. + * + * Excerpts from linux ehci fsl driver. + */ +int ehci_hcd_init(void) +{ + struct usb_ehci *ehci; + + ehci = (struct usb_ehci *)CONFIG_SYS_MPC8xxx_USB_ADDR; + hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength); + hcor = (struct ehci_hcor *)((uint32_t) hccr + + HC_LENGTH(ehci_readl(&hccr->cr_capbase))); + + /* Set to Host mode */ + setbits_le32(&ehci->usbmode, CM_HOST); + + out_be32(&ehci->snoop1, SNOOP_SIZE_2GB); + out_be32(&ehci->snoop2, 0x80000000 | SNOOP_SIZE_2GB); + + /* Init phy */ + if (!strcmp(getenv("usb_phy_type"), "utmi")) + out_le32(&(hcor->or_portsc[0]), PORT_PTS_UTMI); + else + out_le32(&(hcor->or_portsc[0]), PORT_PTS_ULPI); + + /* Enable interface. */ + setbits_be32(&ehci->control, USB_EN); + + out_be32(&ehci->prictrl, 0x0000000c); + out_be32(&ehci->age_cnt_limit, 0x00000040); + out_be32(&ehci->sictrl, 0x00000001); + + in_le32(&ehci->usbmode); + + return 0; +} + +/* + * Destroy the appropriate control structures corresponding + * the the EHCI host controller. + */ +int ehci_hcd_stop(void) +{ + return 0; +} |