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Provide a simpler and more standards-compliant simplebus implementation to

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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:
Nathan Whitehorn 2014-02-01 17:41:54 +00:00
parent bbc6da03ef
commit 06763f5e55
5 changed files with 688 additions and 275 deletions
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1
sys/conf/files
View File

@ -1367,7 +1367,6 @@ dev/fb/fbd.c optional fbd | vt
dev/fb/fb_if.m standard
dev/fb/splash.c optional sc splash
dev/fdt/fdt_common.c optional fdt
dev/fdt/fdt_ic_if.m optional fdt
dev/fdt/fdt_slicer.c optional fdt cfi | fdt nand
dev/fdt/fdt_static_dtb.S optional fdt fdt_dtb_static \
dependency "$S/boot/fdt/dts/${FDT_DTS_FILE}"

535
sys/dev/fdt/simplebus.c
View File

@ -1,10 +1,7 @@
/*-
* Copyright (c) 2009-2010 The FreeBSD Foundation
* Copyright (c) 2013 Nathan Whitehorn
* 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:
@ -17,7 +14,7 @@
* 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
* 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)
@ -29,95 +26,85 @@
#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/conf.h>
#include <sys/kernel.h>
#include <sys/rman.h>
#include <sys/malloc.h>
#include <dev/ofw/openfirm.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include <dev/ofw/openfirm.h>
#include "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_range {
uint64_t bus;
uint64_t host;
uint64_t size;
};
struct simplebus_softc {
int sc_addr_cells;
int sc_size_cells;
device_t dev;
phandle_t node;
struct simplebus_range *ranges;
int nranges;
pcell_t acells, scells;
};
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];
struct ofw_bus_devinfo obdinfo;
struct resource_list rl;
};
/*
* Prototypes.
* Bus interface.
*/
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 int simplebus_probe(device_t dev);
static int simplebus_attach(device_t dev);
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;
static void simplebus_probe_nomatch(device_t bus, device_t child);
static int simplebus_print_child(device_t bus, device_t child);
/*
* Bus interface definition.
* ofw_bus interface
*/
static device_method_t simplebus_methods[] = {
static const struct ofw_bus_devinfo *simplebus_get_devinfo(device_t bus,
device_t child);
/*
* local methods
*/
static int simplebus_fill_ranges(phandle_t node,
struct simplebus_softc *sc);
static struct simplebus_devinfo *simplebus_setup_dinfo(device_t dev,
phandle_t node);
/*
* Driver methods.
*/
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_probe_nomatch, simplebus_probe_nomatch),
DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
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),
DEVMETHOD(bus_release_resource, bus_generic_release_resource),
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
DEVMETHOD(bus_adjust_resource, bus_generic_adjust_resource),
DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str),
/* OFW bus interface */
/* 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),
@ -125,7 +112,7 @@ static device_method_t simplebus_methods[] = {
DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
{ 0, 0 }
DEVMETHOD_END
};
static driver_t simplebus_driver = {
@ -133,18 +120,16 @@ static driver_t simplebus_driver = {
simplebus_methods,
sizeof(struct simplebus_softc)
};
devclass_t simplebus_devclass;
static 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"))
if (!ofw_bus_is_compatible(dev, "simple-bus") &&
(ofw_bus_get_type(dev) == NULL || strcmp(ofw_bus_get_type(dev),
"soc") != 0))
return (ENXIO);
device_set_desc(dev, "Flattened device tree simple bus");
@ -155,102 +140,188 @@ simplebus_probe(device_t dev)
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;
struct simplebus_softc *sc;
struct simplebus_devinfo *di;
phandle_t node;
device_t cdev;
node = ofw_bus_get_node(dev);
sc = device_get_softc(dev);
sc->dev = dev;
sc->node = node;
/*
* Walk simple-bus and add direct subordinates as our children.
* Some important numbers
*/
dt_node = ofw_bus_get_node(dev);
for (dt_child = OF_child(dt_node); dt_child != 0;
dt_child = OF_peer(dt_child)) {
sc->acells = 2;
OF_getencprop(node, "#address-cells", &sc->acells, sizeof(sc->acells));
sc->scells = 1;
OF_getencprop(node, "#size-cells", &sc->scells, sizeof(sc->scells));
/* Check and process 'status' property. */
if (!(fdt_is_enabled(dt_child)))
if (simplebus_fill_ranges(node, sc) < 0) {
device_printf(dev, "could not get ranges\n");
return (ENXIO);
}
/*
* In principle, simplebus could have an interrupt map, but ignore that
* for now
*/
for (node = OF_child(node); node > 0; node = OF_peer(node)) {
if ((di = simplebus_setup_dinfo(dev, node)) == NULL)
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");
cdev = device_add_child(dev, NULL, -1);
if (cdev == NULL) {
device_printf(dev, "<%s>: device_add_child failed\n",
di->obdinfo.obd_name);
resource_list_free(&di->rl);
ofw_bus_gen_destroy_devinfo(&di->obdinfo);
free(di, M_DEVBUF);
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);
device_set_ivars(cdev, di);
}
return (bus_generic_attach(dev));
}
static int
simplebus_print_child(device_t dev, device_t child)
simplebus_fill_ranges(phandle_t node, struct simplebus_softc *sc)
{
device_t ip;
struct simplebus_devinfo *di;
struct resource_list *rl;
int rv;
int host_address_cells;
cell_t *base_ranges;
ssize_t nbase_ranges;
int err;
int i, j, k;
di = device_get_ivars(child);
rl = &di->di_res;
err = OF_searchencprop(OF_parent(node), "#address-cells",
&host_address_cells, sizeof(host_address_cells));
if (err <= 0)
return (-1);
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);
nbase_ranges = OF_getproplen(node, "ranges");
if (nbase_ranges < 0)
return (-1);
sc->nranges = nbase_ranges / sizeof(cell_t) /
(sc->acells + host_address_cells + sc->scells);
if (sc->nranges == 0)
return (0);
return (rv);
sc->ranges = malloc(sc->nranges * sizeof(sc->ranges[0]),
M_DEVBUF, M_WAITOK);
base_ranges = malloc(nbase_ranges, M_DEVBUF, M_WAITOK);
OF_getencprop(node, "ranges", base_ranges, nbase_ranges);
for (i = 0, j = 0; i < sc->nranges; i++) {
sc->ranges[i].bus = 0;
for (k = 0; k < sc->acells; k++) {
sc->ranges[i].bus <<= 32;
sc->ranges[i].bus |= base_ranges[j++];
}
sc->ranges[i].host = 0;
for (k = 0; k < host_address_cells; k++) {
sc->ranges[i].host <<= 32;
sc->ranges[i].host |= base_ranges[j++];
}
sc->ranges[i].size = 0;
for (k = 0; k < sc->scells; k++) {
sc->ranges[i].size <<= 32;
sc->ranges[i].size |= base_ranges[j++];
}
}
free(base_ranges, M_DEVBUF);
return (sc->nranges);
}
static struct simplebus_devinfo *
simplebus_setup_dinfo(device_t dev, phandle_t node)
{
struct simplebus_softc *sc;
struct simplebus_devinfo *ndi;
uint32_t *reg, *intr, icells;
uint64_t phys, size;
phandle_t iparent;
int i, j, k;
int nintr;
int nreg;
sc = device_get_softc(dev);
ndi = malloc(sizeof(*ndi), M_DEVBUF, M_WAITOK | M_ZERO);
if (ofw_bus_gen_setup_devinfo(&ndi->obdinfo, node) != 0) {
free(ndi, M_DEVBUF);
return (NULL);
}
resource_list_init(&ndi->rl);
nreg = OF_getencprop_alloc(node, "reg", sizeof(*reg), (void **)&reg);
if (nreg == -1)
nreg = 0;
if (nreg % (sc->acells + sc->scells) != 0) {
if (bootverbose)
device_printf(dev, "Malformed reg property on <%s>\n",
ndi->obdinfo.obd_name);
nreg = 0;
}
for (i = 0, k = 0; i < nreg; i += sc->acells + sc->scells, k++) {
phys = size = 0;
for (j = 0; j < sc->acells; j++) {
phys <<= 32;
phys |= reg[i + j];
}
for (j = 0; j < sc->scells; j++) {
size <<= 32;
size |= reg[i + sc->acells + j];
}
resource_list_add(&ndi->rl, SYS_RES_MEMORY, k,
phys, phys + size - 1, size);
}
free(reg, M_OFWPROP);
nintr = OF_getencprop_alloc(node, "interrupts", sizeof(*intr),
(void **)&intr);
if (nintr > 0) {
iparent = 0;
OF_searchencprop(node, "interrupt-parent", &iparent,
sizeof(iparent));
OF_searchencprop(OF_xref_phandle(iparent), "#interrupt-cells",
&icells, sizeof(icells));
for (i = 0, k = 0; i < nintr; i += icells, k++) {
intr[i] = ofw_bus_map_intr(dev, iparent, icells,
&intr[i]);
resource_list_add(&ndi->rl, SYS_RES_IRQ, k, intr[i],
intr[i], 1);
}
free(intr, M_OFWPROP);
}
return (ndi);
}
static const struct ofw_bus_devinfo *
simplebus_get_devinfo(device_t bus __unused, device_t child)
{
struct simplebus_devinfo *ndi;
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 "
@ -273,153 +344,69 @@ simplebus_alloc_resource(device_t bus, device_t child, int type, int *rid,
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));
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
View 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);
}

0
sys/dev/fdt/fdt_ic_if.m → sys/mips/beri/fdt_ic_if.m
View File

2
sys/mips/beri/files.beri
View File

@ -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