int
law_enable(int trgt, u_long addr, u_long size)
{
uint32_t bar, sr;
int i, law_max;
if (size == 0)
return (0);
law_max = law_getmax();
bar = _LAW_BAR(addr);
sr = _LAW_SR(trgt, size);
/* Bail if already programmed. */
for (i = 0; i < law_max; i++)
if (sr == ccsr_read4(OCP85XX_LAWSR(i)) &&
bar == ccsr_read4(OCP85XX_LAWBAR(i)))
return (0);
/* Find an unused access window. */
for (i = 0; i < law_max; i++)
if ((ccsr_read4(OCP85XX_LAWSR(i)) & 0x80000000) == 0)
break;
if (i == law_max)
return (ENOSPC);
ccsr_write4(OCP85XX_LAWBAR(i), bar);
ccsr_write4(OCP85XX_LAWSR(i), sr);
return (0);
}
static int
bare_probe(platform_t plat)
{
phandle_t cpus, child;
uint32_t sr;
int i, law_max, tgt;
if ((cpus = OF_finddevice("/cpus")) != 0) {
for (maxcpu = 0, child = OF_child(cpus); child != 0;
child = OF_peer(child), maxcpu++)
;
} else
maxcpu = 1;
/*
* Clear local access windows. Skip DRAM entries, so we don't shoot
* ourselves in the foot.
*/
law_max = law_getmax();
for (i = 0; i < law_max; i++) {
sr = ccsr_read4(OCP85XX_LAWSR(i));
if ((sr & 0x80000000) == 0)
continue;
tgt = (sr & 0x01f00000) >> 20;
if (tgt == OCP85XX_TGTIF_RAM1 || tgt == OCP85XX_TGTIF_RAM2 ||
tgt == OCP85XX_TGTIF_RAM_INTL)
continue;
ccsr_write4(OCP85XX_LAWSR(i), sr & 0x7fffffff);
}
return (BUS_PROBE_GENERIC);
}
static int
bare_probe(platform_t plat)
{
uint32_t ver, sr;
int i, law_max, tgt;
ver = SVR_VER(mfspr(SPR_SVR));
switch (ver & ~0x0008) { /* Mask Security Enabled bit */
case SVR_P4080:
maxcpu = 8;
break;
case SVR_P4040:
maxcpu = 4;
break;
case SVR_MPC8572:
case SVR_P1020:
case SVR_P2020:
maxcpu = 2;
break;
default:
maxcpu = 1;
break;
}
/*
* Clear local access windows. Skip DRAM entries, so we don't shoot
* ourselves in the foot.
*/
law_max = law_getmax();
for (i = 0; i < law_max; i++) {
sr = ccsr_read4(OCP85XX_LAWSR(i));
if ((sr & 0x80000000) == 0)
continue;
tgt = (sr & 0x01f00000) >> 20;
if (tgt == OCP85XX_TGTIF_RAM1 || tgt == OCP85XX_TGTIF_RAM2 ||
tgt == OCP85XX_TGTIF_RAM_INTL)
continue;
ccsr_write4(OCP85XX_LAWSR(i), sr & 0x7fffffff);
}
return (BUS_PROBE_GENERIC);
}
int
law_disable(int trgt, u_long addr, u_long size)
{
uint32_t bar, sr;
int i, law_max;
law_max = law_getmax();
bar = _LAW_BAR(addr);
sr = _LAW_SR(trgt, size);
/* Find and disable requested LAW. */
for (i = 0; i < law_max; i++)
if (sr == ccsr_read4(OCP85XX_LAWSR(i)) &&
bar == ccsr_read4(OCP85XX_LAWBAR(i))) {
ccsr_write4(OCP85XX_LAWBAR(i), 0);
ccsr_write4(OCP85XX_LAWSR(i), 0);
return (0);
}
return (ENOENT);
}
static int
ocpbus_attach(device_t dev)
{
struct ocpbus_softc *sc;
int error, i, tgt, law_max;
uint32_t sr;
u_long start, end;
sc = device_get_softc(dev);
ocpbus_mk_child(dev, OCPBUS_DEVTYPE_I2C, 0);
ocpbus_mk_child(dev, OCPBUS_DEVTYPE_I2C, 1);
ocpbus_mk_child(dev, OCPBUS_DEVTYPE_UART, 0);
ocpbus_mk_child(dev, OCPBUS_DEVTYPE_UART, 1);
ocpbus_mk_child(dev, OCPBUS_DEVTYPE_LBC, 0);
ocpbus_mk_child(dev, OCPBUS_DEVTYPE_PCIB, 0);
ocpbus_mk_child(dev, OCPBUS_DEVTYPE_PCIB, 1);
ocpbus_mk_child(dev, OCPBUS_DEVTYPE_PCIB, 2);
ocpbus_mk_child(dev, OCPBUS_DEVTYPE_TSEC, 0);
ocpbus_mk_child(dev, OCPBUS_DEVTYPE_TSEC, 1);
ocpbus_mk_child(dev, OCPBUS_DEVTYPE_TSEC, 2);
ocpbus_mk_child(dev, OCPBUS_DEVTYPE_TSEC, 3);
ocpbus_mk_child(dev, OCPBUS_DEVTYPE_PIC, 0);
ocpbus_mk_child(dev, OCPBUS_DEVTYPE_QUICC, 0);
ocpbus_mk_child(dev, OCPBUS_DEVTYPE_SEC, 0);
/* Set up IRQ rman */
start = 0;
end = INTR_VECTORS - 1;
sc->sc_irq.rm_start = start;
sc->sc_irq.rm_end = end;
sc->sc_irq.rm_type = RMAN_ARRAY;
sc->sc_irq.rm_descr = "Interrupt request lines";
if (rman_init(&sc->sc_irq) ||
rman_manage_region(&sc->sc_irq, start, end))
panic("ocpbus_attach IRQ rman");
/* Set up I/O mem rman */
sc->sc_mem.rm_type = RMAN_ARRAY;
sc->sc_mem.rm_descr = "OCPBus Device Memory";
error = rman_init(&sc->sc_mem);
if (error) {
device_printf(dev, "rman_init() failed. error = %d\n", error);
return (error);
}
error = rman_manage_region(&sc->sc_mem, CCSRBAR_VA,
CCSRBAR_VA + CCSRBAR_SIZE - 1);
if (error) {
device_printf(dev, "rman_manage_region() failed. error = %d\n",
error);
return (error);
}
/*
* Clear local access windows. Skip DRAM entries, so we don't shoot
* ourselves in the foot.
*/
law_max = law_getmax();
for (i = 0; i < law_max; i++) {
sr = ccsr_read4(OCP85XX_LAWSR(i));
if ((sr & 0x80000000) == 0)
continue;
tgt = (sr & 0x01f00000) >> 20;
if (tgt == OCP85XX_TGTIF_RAM1 || tgt == OCP85XX_TGTIF_RAM2 ||
tgt == OCP85XX_TGTIF_RAM_INTL)
continue;
ccsr_write4(OCP85XX_LAWSR(i), sr & 0x7fffffff);
}
if (bootverbose)
device_printf(dev, "PORDEVSR=%08x, PORDEVSR2=%08x\n",
ccsr_read4(OCP85XX_PORDEVSR),
ccsr_read4(OCP85XX_PORDEVSR2));
for (i = PIC_IRQ_START; i < PIC_IRQ_START + 4; i++)
powerpc_config_intr(i, INTR_TRIGGER_LEVEL, INTR_POLARITY_LOW);
return (bus_generic_attach(dev));
}
