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/* $OpenBSD: ehci_obio.c,v 1.3 2009/09/12 21:40:45 kettenis Exp $ */
/*
* Copyright (c) 2008 Mark Kettenis
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/rwlock.h>
#include <sys/timeout.h>
#include <machine/autoconf.h>
#include <dev/ofw/openfirm.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdivar.h>
#include <dev/usb/usb_mem.h>
#include <dev/usb/ehcireg.h>
#include <dev/usb/ehcivar.h>
#include <dev/pci/pcidevs.h>
#define USB_EHCI_OFFSET 0x00100
#define USB_SNOOP1 0x00400 - USB_EHCI_OFFSET
#define USB_SNOOP_2GB 0x1e000000
#define USB_CONTROL 0x00500 - USB_EHCI_OFFSET
#define USB_CONTROL_USB_EN 0x04000000
int ehci_obio_match(struct device *, void *, void *);
void ehci_obio_attach(struct device *, struct device *, void *);
struct cfattach ehci_obio_ca = {
sizeof(struct ehci_softc), ehci_obio_match, ehci_obio_attach
};
struct cfdriver ehci_obio_cd = {
NULL, "ehci", DV_DULL
};
struct powerpc_bus_dma_tag ehci_bus_dma_tag = {
NULL,
_dmamap_create,
_dmamap_destroy,
_dmamap_load,
_dmamap_load_mbuf,
_dmamap_load_uio,
_dmamap_load_raw,
_dmamap_unload,
_dmamap_sync,
_dmamem_alloc,
_dmamem_free,
_dmamem_map,
_dmamem_unmap,
_dmamem_mmap
};
int
ehci_obio_match(struct device *parent, void *cfdata, void *aux)
{
struct obio_attach_args *oa = aux;
char buf[32];
if (OF_getprop(oa->oa_node, "compatible", buf, sizeof(buf)) <= 0 ||
strcmp(buf, "fsl-usb2-mph") != 0)
return (0);
return (1);
}
void
ehci_obio_attach(struct device *parent, struct device *self, void *aux)
{
struct ehci_softc *sc = (void *)self;
struct obio_attach_args *oa = aux;
usbd_status r;
int s;
sc->iot = oa->oa_iot;
sc->sc_size = 1028;
if (bus_space_map(sc->iot, oa->oa_offset + USB_EHCI_OFFSET,
sc->sc_size, 0, &sc->ioh)) {
printf(": can't map registers\n");
return;
}
sc->sc_id_vendor = PCI_VENDOR_FREESCALE;
strlcpy(sc->sc_vendor, "Freescale", sizeof sc->sc_vendor);
sc->sc_bus.dmatag = &ehci_bus_dma_tag;
bus_space_write_4(sc->iot, sc->ioh, USB_CONTROL, USB_CONTROL_USB_EN);
bus_space_write_4(sc->iot, sc->ioh, USB_SNOOP1, USB_SNOOP_2GB);
s = splhardusb();
sc->sc_offs = EREAD1(sc, EHCI_CAPLENGTH);
EOWRITE2(sc, EHCI_USBINTR, 0);
intr_establish(oa->oa_ivec, IST_LEVEL, IPL_USB, ehci_intr, sc,
sc->sc_bus.bdev.dv_xname);
r = ehci_init(sc);
if (r != USBD_NORMAL_COMPLETION) {
printf(": init failed, error=%d\n", r);
goto unmap_ret;
}
splx(s);
printf("\n");
/* Attach usb device. */
sc->sc_child = config_found((void *)sc, &sc->sc_bus, usbctlprint);
return;
unmap_ret:
bus_space_unmap(sc->iot, sc->ioh, sc->sc_size);
splx(s);
}
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