Provide a simpler and more standards-compliant simplebus implementation to
get the Routerboard 800 up and running with the vendor device tree. This does not implement some BERI-specific features (which hopefully won't be necessary soon), so move the old code to mips/beri, with a higher attach priority when built, until MIPS interrupt domain support is rearranged.
This commit is contained in:
parent
bbc6da03ef
commit
06763f5e55
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=261352
@ -1367,7 +1367,6 @@ dev/fb/fbd.c optional fbd | vt
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dev/fb/fb_if.m standard
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dev/fb/splash.c optional sc splash
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dev/fdt/fdt_common.c optional fdt
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dev/fdt/fdt_ic_if.m optional fdt
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dev/fdt/fdt_slicer.c optional fdt cfi | fdt nand
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dev/fdt/fdt_static_dtb.S optional fdt fdt_dtb_static \
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dependency "$S/boot/fdt/dts/${FDT_DTS_FILE}"
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@ -1,10 +1,7 @@
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/*-
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* Copyright (c) 2009-2010 The FreeBSD Foundation
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* Copyright (c) 2013 Nathan Whitehorn
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* All rights reserved.
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*
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* This software was developed by Semihalf under sponsorship from
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* the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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@ -29,95 +26,85 @@
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_platform.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/ktr.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <sys/rman.h>
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#include <sys/malloc.h>
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#include <dev/ofw/openfirm.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <dev/ofw/openfirm.h>
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#include "fdt_common.h"
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#include "fdt_ic_if.h"
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#include "ofw_bus_if.h"
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#ifdef DEBUG
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#define debugf(fmt, args...) do { printf("%s(): ", __func__); \
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printf(fmt,##args); } while (0)
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#else
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#define debugf(fmt, args...)
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#endif
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static MALLOC_DEFINE(M_SIMPLEBUS, "simplebus", "simplebus devices information");
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struct simplebus_range {
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uint64_t bus;
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uint64_t host;
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uint64_t size;
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};
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struct simplebus_softc {
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int sc_addr_cells;
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int sc_size_cells;
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device_t dev;
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phandle_t node;
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struct simplebus_range *ranges;
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int nranges;
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pcell_t acells, scells;
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};
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struct simplebus_devinfo {
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struct ofw_bus_devinfo di_ofw;
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struct resource_list di_res;
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/* Interrupts sense-level info for this device */
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struct fdt_sense_level di_intr_sl[DI_MAX_INTR_NUM];
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struct ofw_bus_devinfo obdinfo;
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struct resource_list rl;
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};
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/*
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* Prototypes.
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* Bus interface.
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*/
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static int simplebus_probe(device_t);
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static int simplebus_attach(device_t);
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static int simplebus_print_child(device_t, device_t);
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static int simplebus_setup_intr(device_t, device_t, struct resource *, int,
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driver_filter_t *, driver_intr_t *, void *, void **);
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static int simplebus_teardown_intr(device_t, device_t, struct resource *,
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void *);
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static int simplebus_activate_resource(device_t, device_t, int, int,
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struct resource *);
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static int simplebus_probe(device_t dev);
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static int simplebus_attach(device_t dev);
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static struct resource *simplebus_alloc_resource(device_t, device_t, int,
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int *, u_long, u_long, u_long, u_int);
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static int simplebus_deactivate_resource(device_t, device_t, int, int,
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struct resource *);
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static int simplebus_release_resource(device_t, device_t, int, int,
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struct resource *);
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static device_t simplebus_get_interrupt_parent(device_t);
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static struct resource_list *simplebus_get_resource_list(device_t, device_t);
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static ofw_bus_get_devinfo_t simplebus_get_devinfo;
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static void simplebus_probe_nomatch(device_t bus, device_t child);
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static int simplebus_print_child(device_t bus, device_t child);
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/*
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* Bus interface definition.
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* ofw_bus interface
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*/
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static const struct ofw_bus_devinfo *simplebus_get_devinfo(device_t bus,
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device_t child);
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/*
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* local methods
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*/
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static int simplebus_fill_ranges(phandle_t node,
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struct simplebus_softc *sc);
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static struct simplebus_devinfo *simplebus_setup_dinfo(device_t dev,
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phandle_t node);
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/*
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* Driver methods.
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*/
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static device_method_t simplebus_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, simplebus_probe),
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DEVMETHOD(device_attach, simplebus_attach),
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DEVMETHOD(device_detach, bus_generic_detach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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DEVMETHOD(device_suspend, bus_generic_suspend),
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DEVMETHOD(device_resume, bus_generic_resume),
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/* Bus interface */
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DEVMETHOD(bus_print_child, simplebus_print_child),
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DEVMETHOD(bus_probe_nomatch, simplebus_probe_nomatch),
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DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
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DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
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DEVMETHOD(bus_alloc_resource, simplebus_alloc_resource),
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DEVMETHOD(bus_release_resource, simplebus_release_resource),
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DEVMETHOD(bus_activate_resource, simplebus_activate_resource),
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DEVMETHOD(bus_deactivate_resource, simplebus_deactivate_resource),
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DEVMETHOD(bus_setup_intr, simplebus_setup_intr),
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DEVMETHOD(bus_teardown_intr, simplebus_teardown_intr),
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DEVMETHOD(bus_get_resource_list, simplebus_get_resource_list),
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DEVMETHOD(bus_release_resource, bus_generic_release_resource),
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DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
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DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
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DEVMETHOD(bus_adjust_resource, bus_generic_adjust_resource),
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DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str),
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/* OFW bus interface */
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/* ofw_bus interface */
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DEVMETHOD(ofw_bus_get_devinfo, simplebus_get_devinfo),
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DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
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DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
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@ -125,7 +112,7 @@ static device_method_t simplebus_methods[] = {
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DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
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DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
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{ 0, 0 }
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DEVMETHOD_END
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};
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static driver_t simplebus_driver = {
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@ -133,18 +120,16 @@ static driver_t simplebus_driver = {
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simplebus_methods,
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sizeof(struct simplebus_softc)
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};
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devclass_t simplebus_devclass;
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static devclass_t simplebus_devclass;
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DRIVER_MODULE(simplebus, nexus, simplebus_driver, simplebus_devclass, 0, 0);
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DRIVER_MODULE(simplebus, simplebus, simplebus_driver, simplebus_devclass, 0,
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0);
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static int
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simplebus_probe(device_t dev)
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{
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if (!ofw_bus_is_compatible(dev, "simple-bus"))
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if (!ofw_bus_is_compatible(dev, "simple-bus") &&
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(ofw_bus_get_type(dev) == NULL || strcmp(ofw_bus_get_type(dev),
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"soc") != 0))
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return (ENXIO);
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device_set_desc(dev, "Flattened device tree simple bus");
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@ -155,102 +140,188 @@ simplebus_probe(device_t dev)
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static int
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simplebus_attach(device_t dev)
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{
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device_t dev_child;
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struct simplebus_devinfo *di;
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struct simplebus_softc *sc;
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phandle_t dt_node, dt_child;
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struct simplebus_devinfo *di;
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phandle_t node;
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device_t cdev;
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node = ofw_bus_get_node(dev);
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sc = device_get_softc(dev);
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sc->dev = dev;
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sc->node = node;
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/*
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* Walk simple-bus and add direct subordinates as our children.
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* Some important numbers
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*/
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dt_node = ofw_bus_get_node(dev);
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for (dt_child = OF_child(dt_node); dt_child != 0;
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dt_child = OF_peer(dt_child)) {
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sc->acells = 2;
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OF_getencprop(node, "#address-cells", &sc->acells, sizeof(sc->acells));
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sc->scells = 1;
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OF_getencprop(node, "#size-cells", &sc->scells, sizeof(sc->scells));
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/* Check and process 'status' property. */
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if (!(fdt_is_enabled(dt_child)))
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continue;
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if (!(fdt_pm_is_enabled(dt_child)))
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continue;
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di = malloc(sizeof(*di), M_SIMPLEBUS, M_WAITOK | M_ZERO);
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if (ofw_bus_gen_setup_devinfo(&di->di_ofw, dt_child) != 0) {
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free(di, M_SIMPLEBUS);
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device_printf(dev, "could not set up devinfo\n");
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continue;
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if (simplebus_fill_ranges(node, sc) < 0) {
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device_printf(dev, "could not get ranges\n");
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return (ENXIO);
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}
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resource_list_init(&di->di_res);
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if (fdt_reg_to_rl(dt_child, &di->di_res)) {
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device_printf(dev,
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"%s: could not process 'reg' "
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"property\n", di->di_ofw.obd_name);
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ofw_bus_gen_destroy_devinfo(&di->di_ofw);
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free(di, M_SIMPLEBUS);
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continue;
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}
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/*
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* In principle, simplebus could have an interrupt map, but ignore that
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* for now
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*/
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if (fdt_intr_to_rl(dev, dt_child, &di->di_res, di->di_intr_sl)) {
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device_printf(dev, "%s: could not process "
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"'interrupts' property\n", di->di_ofw.obd_name);
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resource_list_free(&di->di_res);
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ofw_bus_gen_destroy_devinfo(&di->di_ofw);
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free(di, M_SIMPLEBUS);
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for (node = OF_child(node); node > 0; node = OF_peer(node)) {
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if ((di = simplebus_setup_dinfo(dev, node)) == NULL)
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continue;
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cdev = device_add_child(dev, NULL, -1);
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if (cdev == NULL) {
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device_printf(dev, "<%s>: device_add_child failed\n",
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di->obdinfo.obd_name);
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resource_list_free(&di->rl);
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ofw_bus_gen_destroy_devinfo(&di->obdinfo);
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free(di, M_DEVBUF);
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continue;
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}
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/* Add newbus device for this FDT node */
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dev_child = device_add_child(dev, NULL, -1);
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if (dev_child == NULL) {
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device_printf(dev, "could not add child: %s\n",
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di->di_ofw.obd_name);
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resource_list_free(&di->di_res);
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ofw_bus_gen_destroy_devinfo(&di->di_ofw);
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free(di, M_SIMPLEBUS);
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continue;
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}
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#ifdef DEBUG
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device_printf(dev, "added child: %s\n\n", di->di_ofw.obd_name);
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#endif
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device_set_ivars(dev_child, di);
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device_set_ivars(cdev, di);
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}
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return (bus_generic_attach(dev));
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}
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static int
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simplebus_print_child(device_t dev, device_t child)
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simplebus_fill_ranges(phandle_t node, struct simplebus_softc *sc)
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{
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device_t ip;
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struct simplebus_devinfo *di;
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struct resource_list *rl;
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int rv;
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int host_address_cells;
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cell_t *base_ranges;
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ssize_t nbase_ranges;
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int err;
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int i, j, k;
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di = device_get_ivars(child);
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rl = &di->di_res;
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err = OF_searchencprop(OF_parent(node), "#address-cells",
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&host_address_cells, sizeof(host_address_cells));
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if (err <= 0)
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return (-1);
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rv = 0;
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rv += bus_print_child_header(dev, child);
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rv += resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#lx");
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rv += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%ld");
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if ((ip = simplebus_get_interrupt_parent(child)) != NULL)
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rv += printf(" (%s)", device_get_nameunit(ip));
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rv += bus_print_child_footer(dev, child);
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nbase_ranges = OF_getproplen(node, "ranges");
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if (nbase_ranges < 0)
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return (-1);
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sc->nranges = nbase_ranges / sizeof(cell_t) /
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(sc->acells + host_address_cells + sc->scells);
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if (sc->nranges == 0)
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return (0);
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return (rv);
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sc->ranges = malloc(sc->nranges * sizeof(sc->ranges[0]),
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M_DEVBUF, M_WAITOK);
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base_ranges = malloc(nbase_ranges, M_DEVBUF, M_WAITOK);
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OF_getencprop(node, "ranges", base_ranges, nbase_ranges);
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for (i = 0, j = 0; i < sc->nranges; i++) {
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sc->ranges[i].bus = 0;
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for (k = 0; k < sc->acells; k++) {
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sc->ranges[i].bus <<= 32;
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sc->ranges[i].bus |= base_ranges[j++];
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}
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sc->ranges[i].host = 0;
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for (k = 0; k < host_address_cells; k++) {
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sc->ranges[i].host <<= 32;
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sc->ranges[i].host |= base_ranges[j++];
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}
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sc->ranges[i].size = 0;
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for (k = 0; k < sc->scells; k++) {
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sc->ranges[i].size <<= 32;
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sc->ranges[i].size |= base_ranges[j++];
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}
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}
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free(base_ranges, M_DEVBUF);
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return (sc->nranges);
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}
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static struct simplebus_devinfo *
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simplebus_setup_dinfo(device_t dev, phandle_t node)
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{
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struct simplebus_softc *sc;
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struct simplebus_devinfo *ndi;
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uint32_t *reg, *intr, icells;
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uint64_t phys, size;
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phandle_t iparent;
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int i, j, k;
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int nintr;
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int nreg;
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sc = device_get_softc(dev);
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ndi = malloc(sizeof(*ndi), M_DEVBUF, M_WAITOK | M_ZERO);
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if (ofw_bus_gen_setup_devinfo(&ndi->obdinfo, node) != 0) {
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free(ndi, M_DEVBUF);
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return (NULL);
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}
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resource_list_init(&ndi->rl);
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nreg = OF_getencprop_alloc(node, "reg", sizeof(*reg), (void **)®);
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if (nreg == -1)
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nreg = 0;
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if (nreg % (sc->acells + sc->scells) != 0) {
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if (bootverbose)
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device_printf(dev, "Malformed reg property on <%s>\n",
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ndi->obdinfo.obd_name);
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nreg = 0;
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}
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for (i = 0, k = 0; i < nreg; i += sc->acells + sc->scells, k++) {
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phys = size = 0;
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for (j = 0; j < sc->acells; j++) {
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phys <<= 32;
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phys |= reg[i + j];
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}
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for (j = 0; j < sc->scells; j++) {
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size <<= 32;
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size |= reg[i + sc->acells + j];
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}
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resource_list_add(&ndi->rl, SYS_RES_MEMORY, k,
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phys, phys + size - 1, size);
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}
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free(reg, M_OFWPROP);
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nintr = OF_getencprop_alloc(node, "interrupts", sizeof(*intr),
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(void **)&intr);
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if (nintr > 0) {
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iparent = 0;
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OF_searchencprop(node, "interrupt-parent", &iparent,
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sizeof(iparent));
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OF_searchencprop(OF_xref_phandle(iparent), "#interrupt-cells",
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&icells, sizeof(icells));
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for (i = 0, k = 0; i < nintr; i += icells, k++) {
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intr[i] = ofw_bus_map_intr(dev, iparent, icells,
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&intr[i]);
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resource_list_add(&ndi->rl, SYS_RES_IRQ, k, intr[i],
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intr[i], 1);
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}
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free(intr, M_OFWPROP);
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}
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return (ndi);
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}
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static const struct ofw_bus_devinfo *
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simplebus_get_devinfo(device_t bus __unused, device_t child)
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{
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struct simplebus_devinfo *ndi;
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|
||||
ndi = device_get_ivars(child);
|
||||
return (&ndi->obdinfo);
|
||||
}
|
||||
|
||||
static struct resource *
|
||||
simplebus_alloc_resource(device_t bus, device_t child, int type, int *rid,
|
||||
u_long start, u_long end, u_long count, u_int flags)
|
||||
{
|
||||
device_t ic;
|
||||
struct simplebus_softc *sc;
|
||||
struct simplebus_devinfo *di;
|
||||
struct resource_list_entry *rle;
|
||||
int j;
|
||||
|
||||
sc = device_get_softc(bus);
|
||||
|
||||
/*
|
||||
* Request for the default allocation with a given rid: use resource
|
||||
@ -263,7 +334,7 @@ simplebus_alloc_resource(device_t bus, device_t child, int type, int *rid,
|
||||
if (type == SYS_RES_IOPORT)
|
||||
type = SYS_RES_MEMORY;
|
||||
|
||||
rle = resource_list_find(&di->di_res, type, *rid);
|
||||
rle = resource_list_find(&di->rl, type, *rid);
|
||||
if (rle == NULL) {
|
||||
if (bootverbose)
|
||||
device_printf(bus, "no default resources for "
|
||||
@ -275,151 +346,67 @@ simplebus_alloc_resource(device_t bus, device_t child, int type, int *rid,
|
||||
count = rle->count;
|
||||
}
|
||||
|
||||
if (type == SYS_RES_IRQ &&
|
||||
(ic = simplebus_get_interrupt_parent(child)) != NULL)
|
||||
return(FDT_IC_ALLOC_INTR(ic, child, rid, start, flags));
|
||||
if (type == SYS_RES_MEMORY) {
|
||||
/* Remap through ranges property */
|
||||
for (j = 0; j < sc->nranges; j++) {
|
||||
if (start >= sc->ranges[j].bus && end <
|
||||
sc->ranges[j].bus + sc->ranges[j].size) {
|
||||
start -= sc->ranges[j].bus;
|
||||
start += sc->ranges[j].host;
|
||||
end -= sc->ranges[j].bus;
|
||||
end += sc->ranges[j].host;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (j == sc->nranges && sc->nranges != 0) {
|
||||
if (bootverbose)
|
||||
device_printf(bus, "Could not map resource "
|
||||
"%#lx-%#lx\n", start, end);
|
||||
|
||||
return (NULL);
|
||||
}
|
||||
}
|
||||
|
||||
return (bus_generic_alloc_resource(bus, child, type, rid, start, end,
|
||||
count, flags));
|
||||
}
|
||||
|
||||
static int
|
||||
simplebus_activate_resource(device_t dev, device_t child, int type, int rid,
|
||||
struct resource *r)
|
||||
simplebus_print_res(struct simplebus_devinfo *di)
|
||||
{
|
||||
device_t ic;
|
||||
int rv;
|
||||
|
||||
if (type == SYS_RES_IRQ &&
|
||||
(ic = simplebus_get_interrupt_parent(child)) != NULL)
|
||||
return (FDT_IC_ACTIVATE_INTR(ic, r));
|
||||
rv = 0;
|
||||
rv += resource_list_print_type(&di->rl, "mem", SYS_RES_MEMORY, "%#lx");
|
||||
rv += resource_list_print_type(&di->rl, "irq", SYS_RES_IRQ, "%ld");
|
||||
return (rv);
|
||||
}
|
||||
|
||||
return (bus_generic_activate_resource(dev, child, type, rid, r));
|
||||
static void
|
||||
simplebus_probe_nomatch(device_t bus, device_t child)
|
||||
{
|
||||
const char *name, *type;
|
||||
|
||||
if (!bootverbose)
|
||||
return;
|
||||
|
||||
name = ofw_bus_get_name(child);
|
||||
type = ofw_bus_get_type(child);
|
||||
|
||||
device_printf(bus, "<%s>", name != NULL ? name : "unknown");
|
||||
simplebus_print_res(device_get_ivars(child));
|
||||
printf(" type %s (no driver attached)\n",
|
||||
type != NULL ? type : "unknown");
|
||||
}
|
||||
|
||||
static int
|
||||
simplebus_deactivate_resource(device_t dev, device_t child, int type, int rid,
|
||||
struct resource *r)
|
||||
simplebus_print_child(device_t bus, device_t child)
|
||||
{
|
||||
device_t ic;
|
||||
int rv;
|
||||
|
||||
if (type == SYS_RES_IRQ &&
|
||||
(ic = simplebus_get_interrupt_parent(child)) != NULL)
|
||||
return (FDT_IC_DEACTIVATE_INTR(ic, r));
|
||||
|
||||
return (bus_generic_deactivate_resource(dev, child, type, rid, r));
|
||||
rv = bus_print_child_header(bus, child);
|
||||
rv += simplebus_print_res(device_get_ivars(child));
|
||||
rv += bus_print_child_footer(bus, child);
|
||||
return (rv);
|
||||
}
|
||||
|
||||
static int
|
||||
simplebus_release_resource(device_t dev, device_t child, int type, int rid,
|
||||
struct resource *r)
|
||||
{
|
||||
device_t ic;
|
||||
|
||||
if (type == SYS_RES_IRQ &&
|
||||
(ic = simplebus_get_interrupt_parent(child)) != NULL)
|
||||
return (FDT_IC_RELEASE_INTR(ic, r));
|
||||
|
||||
return (bus_generic_release_resource(dev, child, type, rid, r));
|
||||
}
|
||||
|
||||
static struct resource_list *
|
||||
simplebus_get_resource_list(device_t bus, device_t child)
|
||||
{
|
||||
struct simplebus_devinfo *di;
|
||||
|
||||
di = device_get_ivars(child);
|
||||
return (&di->di_res);
|
||||
}
|
||||
|
||||
static device_t
|
||||
simplebus_get_interrupt_parent(device_t dev)
|
||||
{
|
||||
struct simplebus_devinfo *di;
|
||||
struct fdt_ic *ic;
|
||||
device_t ip;
|
||||
phandle_t ph, iph;
|
||||
|
||||
ip = NULL;
|
||||
|
||||
di = device_get_ivars(dev);
|
||||
if (di == NULL)
|
||||
return (NULL);
|
||||
|
||||
if (OF_getencprop(di->di_ofw.obd_node, "interrupt-parent", &iph,
|
||||
sizeof(iph)) > 0) {
|
||||
ph = OF_xref_phandle(iph);
|
||||
SLIST_FOREACH(ic, &fdt_ic_list_head, fdt_ics) {
|
||||
if (ic->iph == ph) {
|
||||
ip = ic->dev;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
return (ip);
|
||||
}
|
||||
|
||||
static int
|
||||
simplebus_setup_intr(device_t bus, device_t child, struct resource *res,
|
||||
int flags, driver_filter_t *filter, driver_intr_t *ihand, void *arg,
|
||||
void **cookiep)
|
||||
{
|
||||
struct simplebus_devinfo *di;
|
||||
device_t ic;
|
||||
enum intr_trigger trig;
|
||||
enum intr_polarity pol;
|
||||
int error, irq, rid;
|
||||
|
||||
di = device_get_ivars(child);
|
||||
if (di == NULL)
|
||||
return (ENXIO);
|
||||
|
||||
if (res == NULL)
|
||||
return (EINVAL);
|
||||
|
||||
rid = rman_get_rid(res);
|
||||
if (rid >= DI_MAX_INTR_NUM)
|
||||
return (ENOENT);
|
||||
|
||||
ic = simplebus_get_interrupt_parent(child);
|
||||
|
||||
trig = di->di_intr_sl[rid].trig;
|
||||
pol = di->di_intr_sl[rid].pol;
|
||||
if (trig != INTR_TRIGGER_CONFORM || pol != INTR_POLARITY_CONFORM) {
|
||||
irq = rman_get_start(res);
|
||||
if (ic != NULL)
|
||||
error = FDT_IC_CONFIG_INTR(ic, irq, trig, pol);
|
||||
else
|
||||
error = bus_generic_config_intr(bus, irq, trig, pol);
|
||||
if (error)
|
||||
return (error);
|
||||
}
|
||||
|
||||
if (ic != NULL)
|
||||
error = FDT_IC_SETUP_INTR(ic, child, res, flags, filter,
|
||||
ihand, arg, cookiep);
|
||||
else
|
||||
error = bus_generic_setup_intr(bus, child, res, flags, filter,
|
||||
ihand, arg, cookiep);
|
||||
return (error);
|
||||
}
|
||||
|
||||
static int
|
||||
simplebus_teardown_intr(device_t bus, device_t child, struct resource *res,
|
||||
void *cookie)
|
||||
{
|
||||
device_t ic;
|
||||
|
||||
if ((ic = simplebus_get_interrupt_parent(child)) != NULL)
|
||||
return (FDT_IC_TEARDOWN_INTR(ic, child, res, cookie));
|
||||
|
||||
return (bus_generic_teardown_intr(bus, child, res, cookie));
|
||||
}
|
||||
|
||||
static const struct ofw_bus_devinfo *
|
||||
simplebus_get_devinfo(device_t bus, device_t child)
|
||||
{
|
||||
struct simplebus_devinfo *di;
|
||||
|
||||
di = device_get_ivars(child);
|
||||
return (&di->di_ofw);
|
||||
}
|
||||
|
425
sys/mips/beri/beri_simplebus.c
Normal file
425
sys/mips/beri/beri_simplebus.c
Normal file
@ -0,0 +1,425 @@
|
||||
/*-
|
||||
* Copyright (c) 2009-2010 The FreeBSD Foundation
|
||||
* All rights reserved.
|
||||
*
|
||||
* This software was developed by Semihalf under sponsorship from
|
||||
* the FreeBSD Foundation.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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 "opt_platform.h"
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/ktr.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/module.h>
|
||||
#include <sys/bus.h>
|
||||
#include <sys/rman.h>
|
||||
#include <sys/malloc.h>
|
||||
|
||||
#include <dev/ofw/ofw_bus.h>
|
||||
#include <dev/ofw/ofw_bus_subr.h>
|
||||
#include <dev/ofw/openfirm.h>
|
||||
|
||||
#include <dev/fdt/fdt_common.h>
|
||||
#include "fdt_ic_if.h"
|
||||
#include "ofw_bus_if.h"
|
||||
|
||||
#ifdef DEBUG
|
||||
#define debugf(fmt, args...) do { printf("%s(): ", __func__); \
|
||||
printf(fmt,##args); } while (0)
|
||||
#else
|
||||
#define debugf(fmt, args...)
|
||||
#endif
|
||||
|
||||
static MALLOC_DEFINE(M_SIMPLEBUS, "simplebus", "simplebus devices information");
|
||||
|
||||
struct simplebus_softc {
|
||||
int sc_addr_cells;
|
||||
int sc_size_cells;
|
||||
};
|
||||
|
||||
struct simplebus_devinfo {
|
||||
struct ofw_bus_devinfo di_ofw;
|
||||
struct resource_list di_res;
|
||||
|
||||
/* Interrupts sense-level info for this device */
|
||||
struct fdt_sense_level di_intr_sl[DI_MAX_INTR_NUM];
|
||||
};
|
||||
|
||||
/*
|
||||
* Prototypes.
|
||||
*/
|
||||
static int simplebus_probe(device_t);
|
||||
static int simplebus_attach(device_t);
|
||||
|
||||
static int simplebus_print_child(device_t, device_t);
|
||||
static int simplebus_setup_intr(device_t, device_t, struct resource *, int,
|
||||
driver_filter_t *, driver_intr_t *, void *, void **);
|
||||
static int simplebus_teardown_intr(device_t, device_t, struct resource *,
|
||||
void *);
|
||||
|
||||
static int simplebus_activate_resource(device_t, device_t, int, int,
|
||||
struct resource *);
|
||||
static struct resource *simplebus_alloc_resource(device_t, device_t, int,
|
||||
int *, u_long, u_long, u_long, u_int);
|
||||
static int simplebus_deactivate_resource(device_t, device_t, int, int,
|
||||
struct resource *);
|
||||
static int simplebus_release_resource(device_t, device_t, int, int,
|
||||
struct resource *);
|
||||
static device_t simplebus_get_interrupt_parent(device_t);
|
||||
static struct resource_list *simplebus_get_resource_list(device_t, device_t);
|
||||
|
||||
static ofw_bus_get_devinfo_t simplebus_get_devinfo;
|
||||
|
||||
/*
|
||||
* Bus interface definition.
|
||||
*/
|
||||
static device_method_t simplebus_methods[] = {
|
||||
/* Device interface */
|
||||
DEVMETHOD(device_probe, simplebus_probe),
|
||||
DEVMETHOD(device_attach, simplebus_attach),
|
||||
DEVMETHOD(device_detach, bus_generic_detach),
|
||||
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
||||
DEVMETHOD(device_suspend, bus_generic_suspend),
|
||||
DEVMETHOD(device_resume, bus_generic_resume),
|
||||
|
||||
/* Bus interface */
|
||||
DEVMETHOD(bus_print_child, simplebus_print_child),
|
||||
DEVMETHOD(bus_alloc_resource, simplebus_alloc_resource),
|
||||
DEVMETHOD(bus_release_resource, simplebus_release_resource),
|
||||
DEVMETHOD(bus_activate_resource, simplebus_activate_resource),
|
||||
DEVMETHOD(bus_deactivate_resource, simplebus_deactivate_resource),
|
||||
DEVMETHOD(bus_setup_intr, simplebus_setup_intr),
|
||||
DEVMETHOD(bus_teardown_intr, simplebus_teardown_intr),
|
||||
DEVMETHOD(bus_get_resource_list, simplebus_get_resource_list),
|
||||
|
||||
/* OFW bus interface */
|
||||
DEVMETHOD(ofw_bus_get_devinfo, simplebus_get_devinfo),
|
||||
DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
|
||||
DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
|
||||
DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
|
||||
DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
|
||||
DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
|
||||
|
||||
{ 0, 0 }
|
||||
};
|
||||
|
||||
static driver_t simplebus_driver = {
|
||||
"simplebus",
|
||||
simplebus_methods,
|
||||
sizeof(struct simplebus_softc)
|
||||
};
|
||||
|
||||
devclass_t simplebus_devclass;
|
||||
|
||||
DRIVER_MODULE(simplebus, nexus, simplebus_driver, simplebus_devclass, 0, 0);
|
||||
DRIVER_MODULE(simplebus, simplebus, simplebus_driver, simplebus_devclass, 0,
|
||||
0);
|
||||
|
||||
static int
|
||||
simplebus_probe(device_t dev)
|
||||
{
|
||||
|
||||
if (!ofw_bus_is_compatible(dev, "simple-bus"))
|
||||
return (ENXIO);
|
||||
|
||||
device_set_desc(dev, "Flattened device tree simple bus");
|
||||
|
||||
return (BUS_PROBE_SPECIFIC);
|
||||
}
|
||||
|
||||
static int
|
||||
simplebus_attach(device_t dev)
|
||||
{
|
||||
device_t dev_child;
|
||||
struct simplebus_devinfo *di;
|
||||
struct simplebus_softc *sc;
|
||||
phandle_t dt_node, dt_child;
|
||||
|
||||
sc = device_get_softc(dev);
|
||||
|
||||
/*
|
||||
* Walk simple-bus and add direct subordinates as our children.
|
||||
*/
|
||||
dt_node = ofw_bus_get_node(dev);
|
||||
for (dt_child = OF_child(dt_node); dt_child != 0;
|
||||
dt_child = OF_peer(dt_child)) {
|
||||
|
||||
/* Check and process 'status' property. */
|
||||
if (!(fdt_is_enabled(dt_child)))
|
||||
continue;
|
||||
|
||||
if (!(fdt_pm_is_enabled(dt_child)))
|
||||
continue;
|
||||
|
||||
di = malloc(sizeof(*di), M_SIMPLEBUS, M_WAITOK | M_ZERO);
|
||||
|
||||
if (ofw_bus_gen_setup_devinfo(&di->di_ofw, dt_child) != 0) {
|
||||
free(di, M_SIMPLEBUS);
|
||||
device_printf(dev, "could not set up devinfo\n");
|
||||
continue;
|
||||
}
|
||||
|
||||
resource_list_init(&di->di_res);
|
||||
if (fdt_reg_to_rl(dt_child, &di->di_res)) {
|
||||
device_printf(dev,
|
||||
"%s: could not process 'reg' "
|
||||
"property\n", di->di_ofw.obd_name);
|
||||
ofw_bus_gen_destroy_devinfo(&di->di_ofw);
|
||||
free(di, M_SIMPLEBUS);
|
||||
continue;
|
||||
}
|
||||
|
||||
if (fdt_intr_to_rl(dev, dt_child, &di->di_res, di->di_intr_sl)) {
|
||||
device_printf(dev, "%s: could not process "
|
||||
"'interrupts' property\n", di->di_ofw.obd_name);
|
||||
resource_list_free(&di->di_res);
|
||||
ofw_bus_gen_destroy_devinfo(&di->di_ofw);
|
||||
free(di, M_SIMPLEBUS);
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Add newbus device for this FDT node */
|
||||
dev_child = device_add_child(dev, NULL, -1);
|
||||
if (dev_child == NULL) {
|
||||
device_printf(dev, "could not add child: %s\n",
|
||||
di->di_ofw.obd_name);
|
||||
resource_list_free(&di->di_res);
|
||||
ofw_bus_gen_destroy_devinfo(&di->di_ofw);
|
||||
free(di, M_SIMPLEBUS);
|
||||
continue;
|
||||
}
|
||||
#ifdef DEBUG
|
||||
device_printf(dev, "added child: %s\n\n", di->di_ofw.obd_name);
|
||||
#endif
|
||||
device_set_ivars(dev_child, di);
|
||||
}
|
||||
|
||||
return (bus_generic_attach(dev));
|
||||
}
|
||||
|
||||
static int
|
||||
simplebus_print_child(device_t dev, device_t child)
|
||||
{
|
||||
device_t ip;
|
||||
struct simplebus_devinfo *di;
|
||||
struct resource_list *rl;
|
||||
int rv;
|
||||
|
||||
di = device_get_ivars(child);
|
||||
rl = &di->di_res;
|
||||
|
||||
rv = 0;
|
||||
rv += bus_print_child_header(dev, child);
|
||||
rv += resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#lx");
|
||||
rv += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%ld");
|
||||
if ((ip = simplebus_get_interrupt_parent(child)) != NULL)
|
||||
rv += printf(" (%s)", device_get_nameunit(ip));
|
||||
rv += bus_print_child_footer(dev, child);
|
||||
|
||||
return (rv);
|
||||
}
|
||||
|
||||
static struct resource *
|
||||
simplebus_alloc_resource(device_t bus, device_t child, int type, int *rid,
|
||||
u_long start, u_long end, u_long count, u_int flags)
|
||||
{
|
||||
device_t ic;
|
||||
struct simplebus_devinfo *di;
|
||||
struct resource_list_entry *rle;
|
||||
|
||||
/*
|
||||
* Request for the default allocation with a given rid: use resource
|
||||
* list stored in the local device info.
|
||||
*/
|
||||
if ((start == 0UL) && (end == ~0UL)) {
|
||||
if ((di = device_get_ivars(child)) == NULL)
|
||||
return (NULL);
|
||||
|
||||
if (type == SYS_RES_IOPORT)
|
||||
type = SYS_RES_MEMORY;
|
||||
|
||||
rle = resource_list_find(&di->di_res, type, *rid);
|
||||
if (rle == NULL) {
|
||||
if (bootverbose)
|
||||
device_printf(bus, "no default resources for "
|
||||
"rid = %d, type = %d\n", *rid, type);
|
||||
return (NULL);
|
||||
}
|
||||
start = rle->start;
|
||||
end = rle->end;
|
||||
count = rle->count;
|
||||
}
|
||||
|
||||
if (type == SYS_RES_IRQ &&
|
||||
(ic = simplebus_get_interrupt_parent(child)) != NULL)
|
||||
return(FDT_IC_ALLOC_INTR(ic, child, rid, start, flags));
|
||||
|
||||
return (bus_generic_alloc_resource(bus, child, type, rid, start, end,
|
||||
count, flags));
|
||||
}
|
||||
|
||||
static int
|
||||
simplebus_activate_resource(device_t dev, device_t child, int type, int rid,
|
||||
struct resource *r)
|
||||
{
|
||||
device_t ic;
|
||||
|
||||
if (type == SYS_RES_IRQ &&
|
||||
(ic = simplebus_get_interrupt_parent(child)) != NULL)
|
||||
return (FDT_IC_ACTIVATE_INTR(ic, r));
|
||||
|
||||
return (bus_generic_activate_resource(dev, child, type, rid, r));
|
||||
}
|
||||
|
||||
static int
|
||||
simplebus_deactivate_resource(device_t dev, device_t child, int type, int rid,
|
||||
struct resource *r)
|
||||
{
|
||||
device_t ic;
|
||||
|
||||
if (type == SYS_RES_IRQ &&
|
||||
(ic = simplebus_get_interrupt_parent(child)) != NULL)
|
||||
return (FDT_IC_DEACTIVATE_INTR(ic, r));
|
||||
|
||||
return (bus_generic_deactivate_resource(dev, child, type, rid, r));
|
||||
}
|
||||
|
||||
static int
|
||||
simplebus_release_resource(device_t dev, device_t child, int type, int rid,
|
||||
struct resource *r)
|
||||
{
|
||||
device_t ic;
|
||||
|
||||
if (type == SYS_RES_IRQ &&
|
||||
(ic = simplebus_get_interrupt_parent(child)) != NULL)
|
||||
return (FDT_IC_RELEASE_INTR(ic, r));
|
||||
|
||||
return (bus_generic_release_resource(dev, child, type, rid, r));
|
||||
}
|
||||
|
||||
static struct resource_list *
|
||||
simplebus_get_resource_list(device_t bus, device_t child)
|
||||
{
|
||||
struct simplebus_devinfo *di;
|
||||
|
||||
di = device_get_ivars(child);
|
||||
return (&di->di_res);
|
||||
}
|
||||
|
||||
static device_t
|
||||
simplebus_get_interrupt_parent(device_t dev)
|
||||
{
|
||||
struct simplebus_devinfo *di;
|
||||
struct fdt_ic *ic;
|
||||
device_t ip;
|
||||
phandle_t ph, iph;
|
||||
|
||||
ip = NULL;
|
||||
|
||||
di = device_get_ivars(dev);
|
||||
if (di == NULL)
|
||||
return (NULL);
|
||||
|
||||
if (OF_getencprop(di->di_ofw.obd_node, "interrupt-parent", &iph,
|
||||
sizeof(iph)) > 0) {
|
||||
ph = OF_xref_phandle(iph);
|
||||
SLIST_FOREACH(ic, &fdt_ic_list_head, fdt_ics) {
|
||||
if (ic->iph == ph) {
|
||||
ip = ic->dev;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
return (ip);
|
||||
}
|
||||
|
||||
static int
|
||||
simplebus_setup_intr(device_t bus, device_t child, struct resource *res,
|
||||
int flags, driver_filter_t *filter, driver_intr_t *ihand, void *arg,
|
||||
void **cookiep)
|
||||
{
|
||||
struct simplebus_devinfo *di;
|
||||
device_t ic;
|
||||
enum intr_trigger trig;
|
||||
enum intr_polarity pol;
|
||||
int error, irq, rid;
|
||||
|
||||
di = device_get_ivars(child);
|
||||
if (di == NULL)
|
||||
return (ENXIO);
|
||||
|
||||
if (res == NULL)
|
||||
return (EINVAL);
|
||||
|
||||
rid = rman_get_rid(res);
|
||||
if (rid >= DI_MAX_INTR_NUM)
|
||||
return (ENOENT);
|
||||
|
||||
ic = simplebus_get_interrupt_parent(child);
|
||||
|
||||
trig = di->di_intr_sl[rid].trig;
|
||||
pol = di->di_intr_sl[rid].pol;
|
||||
if (trig != INTR_TRIGGER_CONFORM || pol != INTR_POLARITY_CONFORM) {
|
||||
irq = rman_get_start(res);
|
||||
if (ic != NULL)
|
||||
error = FDT_IC_CONFIG_INTR(ic, irq, trig, pol);
|
||||
else
|
||||
error = bus_generic_config_intr(bus, irq, trig, pol);
|
||||
if (error)
|
||||
return (error);
|
||||
}
|
||||
|
||||
if (ic != NULL)
|
||||
error = FDT_IC_SETUP_INTR(ic, child, res, flags, filter,
|
||||
ihand, arg, cookiep);
|
||||
else
|
||||
error = bus_generic_setup_intr(bus, child, res, flags, filter,
|
||||
ihand, arg, cookiep);
|
||||
return (error);
|
||||
}
|
||||
|
||||
static int
|
||||
simplebus_teardown_intr(device_t bus, device_t child, struct resource *res,
|
||||
void *cookie)
|
||||
{
|
||||
device_t ic;
|
||||
|
||||
if ((ic = simplebus_get_interrupt_parent(child)) != NULL)
|
||||
return (FDT_IC_TEARDOWN_INTR(ic, child, res, cookie));
|
||||
|
||||
return (bus_generic_teardown_intr(bus, child, res, cookie));
|
||||
}
|
||||
|
||||
static const struct ofw_bus_devinfo *
|
||||
simplebus_get_devinfo(device_t bus, device_t child)
|
||||
{
|
||||
struct simplebus_devinfo *di;
|
||||
|
||||
di = device_get_ivars(child);
|
||||
return (&di->di_ofw);
|
||||
}
|
@ -18,5 +18,7 @@ dev/terasic/mtl/terasic_mtl_syscons.c optional terasic_mtl
|
||||
dev/terasic/mtl/terasic_mtl_text.c optional terasic_mtl
|
||||
mips/beri/beri_machdep.c standard
|
||||
mips/beri/beri_pic.c optional fdt
|
||||
mips/beri/beri_simplebus.c optional fdt
|
||||
mips/beri/fdt_ic_if.m optional fdt
|
||||
mips/mips/intr_machdep.c standard
|
||||
mips/mips/tick.c standard
|
||||
|
Loading…
Reference in New Issue
Block a user