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- probe the UniNorth chip in addition to the PCI bridges

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- enable GEM ethernet cell if present
 - allow sparse address mapping for devices

Approved by: benno
This commit is contained in:
grehan 2002-09-19 04:49:58 +00:00
parent 3c2938f17a
commit 91ea6a395f
1 changed files with 114 additions and 3 deletions
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117
sys/powerpc/powermac/uninorth.c
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@ -86,6 +86,7 @@ static int uninorth_route_interrupt(device_t, device_t, int);
*/
static int uninorth_enable_config(struct uninorth_softc *, u_int,
u_int, u_int, u_int);
static void unin_enable_gmac(void);
/*
* Driver methods.
@ -145,6 +146,7 @@ uninorth_attach(device_t dev)
{
struct uninorth_softc *sc;
phandle_t node;
phandle_t child;
u_int32_t reg[2], busrange[2];
struct uninorth_range *rp, *io, *mem[2];
int nmem, i;
@ -164,8 +166,6 @@ uninorth_attach(device_t dev)
sc->sc_data = (vm_offset_t)pmap_mapdev(reg[0] + 0xc00000, PAGE_SIZE);
sc->sc_bus = busrange[0];
ofw_pci_fixup(dev, sc->sc_bus, node);
bzero(sc->sc_range, sizeof(sc->sc_range));
sc->sc_nrange = OF_getprop(node, "ranges", sc->sc_range,
sizeof(sc->sc_range));
@ -228,6 +228,27 @@ uninorth_attach(device_t dev)
}
}
/*
* Enable the GMAC ethernet cell if OpenFirmware says it is
* used
*/
for (child = OF_child(node); child; child = OF_peer(child)) {
char compat[32];
memset(compat, 0, sizeof(compat));
OF_getprop(child, "compatible", compat, sizeof(compat));
if (strcmp(compat, "gmac") == 0) {
unin_enable_gmac();
}
}
/*
* Write out the correct PIC interrupt values to config space
* of all devices on the bus. This has to be done after the GEM
* cell is enabled above.
*/
ofw_pci_fixup(dev, sc->sc_bus, node);
device_add_child(dev, "pci", device_get_unit(dev));
return (bus_generic_attach(dev));
}
@ -336,7 +357,9 @@ uninorth_alloc_resource(device_t bus, device_t child, int type, int *rid,
switch (type) {
case SYS_RES_MEMORY:
rm = &sc->sc_mem_rman;
bt = sc->sc_memt;
bt = PPC_BUS_SPACE_MEM;
if (flags & PPC_BUS_SPARSE4)
bt |= 4;
break;
case SYS_RES_IRQ:
return (bus_alloc_resource(bus, type, rid, start, end, count,
@ -458,3 +481,91 @@ static driver_t unhb_driver = {
static devclass_t unhb_devclass;
DRIVER_MODULE(unhb, pci, unhb_driver, unhb_devclass, 0, 0);
/*
* Small stub driver for the Uninorth chip itself, to allow setting
* of various parameters and cell enables
*/
static struct unin_chip_softc *uncsc;
static void
unin_enable_gmac(void)
{
volatile u_int *clkreg;
u_int32_t tmpl;
if (uncsc == NULL)
panic("unin_enable_gmac: device not found");
clkreg = (void *)(uncsc->sc_addr + UNIN_CLOCKCNTL);
tmpl = inl(clkreg);
tmpl |= UNIN_CLOCKCNTL_GMAC;
outl(clkreg, tmpl);
}
static int
unin_chip_probe(device_t dev)
{
char *name;
name = nexus_get_name(dev);
if (name == NULL)
return (ENXIO);
if (strcmp(name, "uni-n") != 0)
return (ENXIO);
device_set_desc(dev, "Apple UniNorth System Controller");
return (0);
}
static int
unin_chip_attach(device_t dev)
{
phandle_t node;
u_int reg[2];
uncsc = device_get_softc(dev);
node = nexus_get_node(dev);
if (OF_getprop(node, "reg", reg, sizeof(reg)) < 8)
return (ENXIO);
uncsc->sc_physaddr = reg[0];
uncsc->sc_size = reg[1];
/*
* Only map the first page, since that is where the registers
* of interest lie.
*/
uncsc->sc_addr = (vm_offset_t) pmap_mapdev(reg[0], PAGE_SIZE);
uncsc->sc_version = *(u_int *)uncsc->sc_addr;
device_printf(dev, "Version %d\n", uncsc->sc_version);
return (0);
}
static device_method_t unin_chip_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, unin_chip_probe),
DEVMETHOD(device_attach, unin_chip_attach),
{ 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);