diff options
Diffstat (limited to 'sys/powerpc/ofw/openpic_ofw.c')
| -rw-r--r-- | sys/powerpc/ofw/openpic_ofw.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/sys/powerpc/ofw/openpic_ofw.c b/sys/powerpc/ofw/openpic_ofw.c new file mode 100644 index 0000000..60d8345 --- /dev/null +++ b/sys/powerpc/ofw/openpic_ofw.c @@ -0,0 +1,129 @@ +/*- + * Copyright 2003 by Peter Grehan. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/module.h> +#include <sys/bus.h> +#include <sys/conf.h> +#include <sys/kernel.h> + +#include <dev/ofw/ofw_bus.h> +#include <dev/ofw/ofw_bus_subr.h> +#include <dev/ofw/openfirm.h> + +#include <machine/bus.h> +#include <machine/intr_machdep.h> +#include <machine/md_var.h> +#include <machine/pio.h> +#include <machine/resource.h> + +#include <vm/vm.h> +#include <vm/pmap.h> + +#include <sys/rman.h> + +#include <machine/openpicvar.h> + +#include "pic_if.h" + +/* + * OFW interface + */ +static int openpic_ofw_probe(device_t); +static int openpic_ofw_attach(device_t); + +static device_method_t openpic_ofw_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, openpic_ofw_probe), + DEVMETHOD(device_attach, openpic_ofw_attach), + + /* PIC interface */ + DEVMETHOD(pic_bind, openpic_bind), + DEVMETHOD(pic_config, openpic_config), + DEVMETHOD(pic_dispatch, openpic_dispatch), + DEVMETHOD(pic_enable, openpic_enable), + DEVMETHOD(pic_eoi, openpic_eoi), + DEVMETHOD(pic_ipi, openpic_ipi), + DEVMETHOD(pic_mask, openpic_mask), + DEVMETHOD(pic_unmask, openpic_unmask), + + DEVMETHOD_END +}; + +static driver_t openpic_ofw_driver = { + "openpic", + openpic_ofw_methods, + sizeof(struct openpic_softc), +}; + +DRIVER_MODULE(openpic, nexus, openpic_ofw_driver, openpic_devclass, 0, 0); +DRIVER_MODULE(openpic, simplebus, openpic_ofw_driver, openpic_devclass, 0, 0); +DRIVER_MODULE(openpic, macio, openpic_ofw_driver, openpic_devclass, 0, 0); + +static int +openpic_ofw_probe(device_t dev) +{ + const char *type = ofw_bus_get_type(dev); + + if (type == NULL) + return (ENXIO); + + if (!ofw_bus_is_compatible(dev, "chrp,open-pic") && + strcmp(type, "open-pic") != 0) + return (ENXIO); + + /* + * On some U4 systems, there is a phantom MPIC in the mac-io cell. + * The uninorth driver will pick up the real PIC, so ignore it here. + */ + if (OF_finddevice("/u4") != (phandle_t)-1) + return (ENXIO); + + device_set_desc(dev, OPENPIC_DEVSTR); + return (0); +} + +static int +openpic_ofw_attach(device_t dev) +{ + phandle_t xref, node; + + node = ofw_bus_get_node(dev); + + if (OF_getprop(node, "phandle", &xref, sizeof(xref)) == -1 && + OF_getprop(node, "ibm,phandle", &xref, sizeof(xref)) == -1 && + OF_getprop(node, "linux,phandle", &xref, sizeof(xref)) == -1) + xref = node; + + return (openpic_common_attach(dev, xref)); +} + |
