| Current Path : /usr/src/sys/powerpc/powermac/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/src/sys/powerpc/powermac/uninorth.c |
/*-
* Copyright (C) 2002 Benno Rice.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY Benno Rice ``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 TOOLS GMBH 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.
*
* $FreeBSD: release/9.1.0/sys/powerpc/powermac/uninorth.c 233472 2012-03-25 18:43:14Z andreast $
*/
#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/openfirm.h>
#include <dev/ofw/ofw_pci.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <machine/bus.h>
#include <machine/intr_machdep.h>
#include <machine/md_var.h>
#include <machine/pio.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <powerpc/powermac/uninorthvar.h>
#include <vm/vm.h>
#include <vm/pmap.h>
/*
* Driver for the Uninorth chip itself.
*/
static MALLOC_DEFINE(M_UNIN, "unin", "unin device information");
/*
* Device interface.
*/
static int unin_chip_probe(device_t);
static int unin_chip_attach(device_t);
/*
* Bus interface.
*/
static int unin_chip_print_child(device_t dev, device_t child);
static void unin_chip_probe_nomatch(device_t, device_t);
static struct resource *unin_chip_alloc_resource(device_t, device_t, int, int *,
u_long, u_long, u_long, u_int);
static int unin_chip_activate_resource(device_t, device_t, int, int,
struct resource *);
static int unin_chip_deactivate_resource(device_t, device_t, int, int,
struct resource *);
static int unin_chip_release_resource(device_t, device_t, int, int,
struct resource *);
static struct resource_list *unin_chip_get_resource_list (device_t, device_t);
/*
* OFW Bus interface
*/
static ofw_bus_get_devinfo_t unin_chip_get_devinfo;
/*
* Local routines
*/
static void unin_enable_gmac(device_t dev);
static void unin_enable_mpic(device_t dev);
/*
* Driver methods.
*/
static device_method_t unin_chip_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, unin_chip_probe),
DEVMETHOD(device_attach, unin_chip_attach),
/* Bus interface */
DEVMETHOD(bus_print_child, unin_chip_print_child),
DEVMETHOD(bus_probe_nomatch, unin_chip_probe_nomatch),
DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
DEVMETHOD(bus_alloc_resource, unin_chip_alloc_resource),
DEVMETHOD(bus_release_resource, unin_chip_release_resource),
DEVMETHOD(bus_activate_resource, unin_chip_activate_resource),
DEVMETHOD(bus_deactivate_resource, unin_chip_deactivate_resource),
DEVMETHOD(bus_get_resource_list, unin_chip_get_resource_list),
DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str),
/* ofw_bus interface */
DEVMETHOD(ofw_bus_get_devinfo, unin_chip_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 unin_chip_driver = {
"unin",
unin_chip_methods,
sizeof(struct unin_chip_softc)
};
static devclass_t unin_chip_devclass;
DRIVER_MODULE(unin, nexus, unin_chip_driver, unin_chip_devclass, 0, 0);
/*
* Add an interrupt to the dev's resource list if present
*/
static void
unin_chip_add_intr(phandle_t devnode, struct unin_chip_devinfo *dinfo)
{
phandle_t iparent;
int *intr;
int i, nintr;
int icells;
if (dinfo->udi_ninterrupts >= 6) {
printf("unin: device has more than 6 interrupts\n");
return;
}
nintr = OF_getprop_alloc(devnode, "interrupts", sizeof(*intr),
(void **)&intr);
if (nintr == -1) {
nintr = OF_getprop_alloc(devnode, "AAPL,interrupts",
sizeof(*intr), (void **)&intr);
if (nintr == -1)
return;
}
if (intr[0] == -1)
return;
if (OF_getprop(devnode, "interrupt-parent", &iparent, sizeof(iparent))
<= 0)
panic("Interrupt but no interrupt parent!\n");
if (OF_searchprop(iparent, "#interrupt-cells", &icells, sizeof(icells))
<= 0)
icells = 1;
for (i = 0; i < nintr; i+=icells) {
u_int irq = MAP_IRQ(iparent, intr[i]);
resource_list_add(&dinfo->udi_resources, SYS_RES_IRQ,
dinfo->udi_ninterrupts, irq, irq, 1);
if (icells > 1) {
powerpc_config_intr(irq,
(intr[i+1] & 1) ? INTR_TRIGGER_LEVEL :
INTR_TRIGGER_EDGE, INTR_POLARITY_LOW);
}
dinfo->udi_interrupts[dinfo->udi_ninterrupts] = irq;
dinfo->udi_ninterrupts++;
}
}
static void
unin_chip_add_reg(phandle_t devnode, struct unin_chip_devinfo *dinfo)
{
struct unin_chip_reg *reg;
int i, nreg;
nreg = OF_getprop_alloc(devnode, "reg", sizeof(*reg), (void **)®);
if (nreg == -1)
return;
for (i = 0; i < nreg; i++) {
resource_list_add(&dinfo->udi_resources, SYS_RES_MEMORY, i,
reg[i].mr_base,
reg[i].mr_base + reg[i].mr_size,
reg[i].mr_size);
}
}
static void
unin_enable_gmac(device_t dev)
{
volatile u_int *clkreg;
struct unin_chip_softc *sc;
u_int32_t tmpl;
sc = device_get_softc(dev);
clkreg = (void *)(sc->sc_addr + UNIN_CLOCKCNTL);
tmpl = inl(clkreg);
tmpl |= UNIN_CLOCKCNTL_GMAC;
outl(clkreg, tmpl);
}
static void
unin_enable_mpic(device_t dev)
{
volatile u_int *toggle;
struct unin_chip_softc *sc;
u_int32_t tmpl;
sc = device_get_softc(dev);
toggle = (void *)(sc->sc_addr + UNIN_TOGGLE_REG);
tmpl = inl(toggle);
tmpl |= UNIN_MPIC_RESET | UNIN_MPIC_OUTPUT_ENABLE;
outl(toggle, tmpl);
}
static int
unin_chip_probe(device_t dev)
{
const char *name;
name = ofw_bus_get_name(dev);
if (name == NULL)
return (ENXIO);
if (strcmp(name, "uni-n") != 0 && strcmp(name, "u3") != 0
&& strcmp(name, "u4") != 0)
return (ENXIO);
device_set_desc(dev, "Apple UniNorth System Controller");
return (0);
}
static int
unin_chip_attach(device_t dev)
{
struct unin_chip_softc *sc;
struct unin_chip_devinfo *dinfo;
phandle_t root;
phandle_t child;
phandle_t iparent;
device_t cdev;
char compat[32];
char name[32];
u_int irq, reg[3];
int error, i = 0;
sc = device_get_softc(dev);
root = ofw_bus_get_node(dev);
if (OF_getprop(root, "reg", reg, sizeof(reg)) < 8)
return (ENXIO);
if (strcmp(ofw_bus_get_name(dev), "u3") == 0
|| strcmp(ofw_bus_get_name(dev), "u4") == 0)
i = 1; /* #address-cells lies */
sc->sc_physaddr = reg[i];
sc->sc_size = reg[i+1];
sc->sc_mem_rman.rm_type = RMAN_ARRAY;
sc->sc_mem_rman.rm_descr = "UniNorth Device Memory";
error = rman_init(&sc->sc_mem_rman);
if (error) {
device_printf(dev, "rman_init() failed. error = %d\n", error);
return (error);
}
error = rman_manage_region(&sc->sc_mem_rman, sc->sc_physaddr,
sc->sc_physaddr + sc->sc_size - 1);
if (error) {
device_printf(dev,
"rman_manage_region() failed. error = %d\n",
error);
return (error);
}
/*
* Iterate through the sub-devices
*/
for (child = OF_child(root); child != 0; child = OF_peer(child)) {
dinfo = malloc(sizeof(*dinfo), M_UNIN, M_WAITOK | M_ZERO);
if (ofw_bus_gen_setup_devinfo(&dinfo->udi_obdinfo, child)
!= 0)
{
free(dinfo, M_UNIN);
continue;
}
resource_list_init(&dinfo->udi_resources);
dinfo->udi_ninterrupts = 0;
unin_chip_add_intr(child, dinfo);
/*
* Some Apple machines do have a bug in OF, they miss
* the interrupt entries on the U3 I2C node. That means they
* do not have an entry with number of interrupts nor the
* entry of the interrupt parent handle.
* We define an interrupt and hardwire it to the /u3/mpic
* handle.
*/
if (OF_getprop(child, "name", name, sizeof(name)) <= 0)
device_printf(dev, "device has no name!\n");
if (dinfo->udi_ninterrupts == 0 &&
(strcmp(name, "i2c-bus") == 0 ||
strcmp(name, "i2c") == 0)) {
if (OF_getprop(child, "interrupt-parent", &iparent,
sizeof(iparent)) <= 0) {
iparent = OF_finddevice("/u3/mpic");
device_printf(dev, "Set /u3/mpic as iparent!\n");
}
/* Add an interrupt number 0 to the parent. */
irq = MAP_IRQ(iparent, 0);
resource_list_add(&dinfo->udi_resources, SYS_RES_IRQ,
dinfo->udi_ninterrupts, irq, irq, 1);
dinfo->udi_interrupts[dinfo->udi_ninterrupts] = irq;
dinfo->udi_ninterrupts++;
}
unin_chip_add_reg(child, dinfo);
cdev = device_add_child(dev, NULL, -1);
if (cdev == NULL) {
device_printf(dev, "<%s>: device_add_child failed\n",
dinfo->udi_obdinfo.obd_name);
resource_list_free(&dinfo->udi_resources);
ofw_bus_gen_destroy_devinfo(&dinfo->udi_obdinfo);
free(dinfo, M_UNIN);
continue;
}
device_set_ivars(cdev, dinfo);
}
/*
* Only map the first page, since that is where the registers
* of interest lie.
*/
sc->sc_addr = (vm_offset_t)pmap_mapdev(sc->sc_physaddr, PAGE_SIZE);
sc->sc_version = *(u_int *)sc->sc_addr;
device_printf(dev, "Version %d\n", sc->sc_version);
/*
* Enable the GMAC Ethernet cell and the integrated OpenPIC
* if Open Firmware says they are used.
*/
for (child = OF_child(root); child; child = OF_peer(child)) {
memset(compat, 0, sizeof(compat));
OF_getprop(child, "compatible", compat, sizeof(compat));
if (strcmp(compat, "gmac") == 0)
unin_enable_gmac(dev);
if (strcmp(compat, "chrp,open-pic") == 0)
unin_enable_mpic(dev);
}
/*
* GMAC lives under the PCI bus, so just check if enet is gmac.
*/
child = OF_finddevice("enet");
memset(compat, 0, sizeof(compat));
OF_getprop(child, "compatible", compat, sizeof(compat));
if (strcmp(compat, "gmac") == 0)
unin_enable_gmac(dev);
return (bus_generic_attach(dev));
}
static int
unin_chip_print_child(device_t dev, device_t child)
{
struct unin_chip_devinfo *dinfo;
struct resource_list *rl;
int retval = 0;
dinfo = device_get_ivars(child);
rl = &dinfo->udi_resources;
retval += bus_print_child_header(dev, child);
retval += resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#lx");
retval += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%ld");
retval += bus_print_child_footer(dev, child);
return (retval);
}
static void
unin_chip_probe_nomatch(device_t dev, device_t child)
{
struct unin_chip_devinfo *dinfo;
struct resource_list *rl;
const char *type;
if (bootverbose) {
dinfo = device_get_ivars(child);
rl = &dinfo->udi_resources;
if ((type = ofw_bus_get_type(child)) == NULL)
type = "(unknown)";
device_printf(dev, "<%s, %s>", type, ofw_bus_get_name(child));
resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#lx");
resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%ld");
printf(" (no driver attached)\n");
}
}
static struct resource *
unin_chip_alloc_resource(device_t bus, device_t child, int type, int *rid,
u_long start, u_long end, u_long count, u_int flags)
{
struct unin_chip_softc *sc;
int needactivate;
struct resource *rv;
struct rman *rm;
u_long adjstart, adjend, adjcount;
struct unin_chip_devinfo *dinfo;
struct resource_list_entry *rle;
sc = device_get_softc(bus);
dinfo = device_get_ivars(child);
needactivate = flags & RF_ACTIVE;
flags &= ~RF_ACTIVE;
switch (type) {
case SYS_RES_MEMORY:
case SYS_RES_IOPORT:
rle = resource_list_find(&dinfo->udi_resources, SYS_RES_MEMORY,
*rid);
if (rle == NULL) {
device_printf(bus, "no rle for %s memory %d\n",
device_get_nameunit(child), *rid);
return (NULL);
}
rle->end = rle->end - 1; /* Hack? */
if (start < rle->start)
adjstart = rle->start;
else if (start > rle->end)
adjstart = rle->end;
else
adjstart = start;
if (end < rle->start)
adjend = rle->start;
else if (end > rle->end)
adjend = rle->end;
else
adjend = end;
adjcount = adjend - adjstart;
rm = &sc->sc_mem_rman;
break;
case SYS_RES_IRQ:
/* Check for passthrough from subattachments. */
if (device_get_parent(child) != bus)
return BUS_ALLOC_RESOURCE(device_get_parent(bus), child,
type, rid, start, end, count,
flags);
rle = resource_list_find(&dinfo->udi_resources, SYS_RES_IRQ,
*rid);
if (rle == NULL) {
if (dinfo->udi_ninterrupts >= 6) {
device_printf(bus,
"%s has more than 6 interrupts\n",
device_get_nameunit(child));
return (NULL);
}
resource_list_add(&dinfo->udi_resources, SYS_RES_IRQ,
dinfo->udi_ninterrupts, start, start,
1);
dinfo->udi_interrupts[dinfo->udi_ninterrupts] = start;
dinfo->udi_ninterrupts++;
}
return (resource_list_alloc(&dinfo->udi_resources, bus, child,
type, rid, start, end, count,
flags));
default:
device_printf(bus, "unknown resource request from %s\n",
device_get_nameunit(child));
return (NULL);
}
rv = rman_reserve_resource(rm, adjstart, adjend, adjcount, flags,
child);
if (rv == NULL) {
device_printf(bus,
"failed to reserve resource %#lx - %#lx (%#lx)"
" for %s\n", adjstart, adjend, adjcount,
device_get_nameunit(child));
return (NULL);
}
rman_set_rid(rv, *rid);
if (needactivate) {
if (bus_activate_resource(child, type, *rid, rv) != 0) {
device_printf(bus,
"failed to activate resource for %s\n",
device_get_nameunit(child));
rman_release_resource(rv);
return (NULL);
}
}
return (rv);
}
static int
unin_chip_release_resource(device_t bus, device_t child, int type, int rid,
struct resource *res)
{
if (rman_get_flags(res) & RF_ACTIVE) {
int error = bus_deactivate_resource(child, type, rid, res);
if (error)
return error;
}
return (rman_release_resource(res));
}
static int
unin_chip_activate_resource(device_t bus, device_t child, int type, int rid,
struct resource *res)
{
void *p;
if (type == SYS_RES_IRQ)
return (bus_activate_resource(bus, type, rid, res));
if ((type == SYS_RES_MEMORY) || (type == SYS_RES_IOPORT)) {
vm_offset_t start;
start = (vm_offset_t) rman_get_start(res);
if (bootverbose)
printf("unin mapdev: start %zx, len %ld\n", start,
rman_get_size(res));
p = pmap_mapdev(start, (vm_size_t) rman_get_size(res));
if (p == NULL)
return (ENOMEM);
rman_set_virtual(res, p);
rman_set_bustag(res, &bs_be_tag);
rman_set_bushandle(res, (u_long)p);
}
return (rman_activate_resource(res));
}
static int
unin_chip_deactivate_resource(device_t bus, device_t child, int type, int rid,
struct resource *res)
{
/*
* If this is a memory resource, unmap it.
*/
if ((type == SYS_RES_MEMORY) || (type == SYS_RES_IOPORT)) {
u_int32_t psize;
psize = rman_get_size(res);
pmap_unmapdev((vm_offset_t)rman_get_virtual(res), psize);
}
return (rman_deactivate_resource(res));
}
static struct resource_list *
unin_chip_get_resource_list (device_t dev, device_t child)
{
struct unin_chip_devinfo *dinfo;
dinfo = device_get_ivars(child);
return (&dinfo->udi_resources);
}
static const struct ofw_bus_devinfo *
unin_chip_get_devinfo(device_t dev, device_t child)
{
struct unin_chip_devinfo *dinfo;
dinfo = device_get_ivars(child);
return (&dinfo->udi_obdinfo);
}