static int __init pnv_probe(void)
{
unsigned long root = of_get_flat_dt_root();
if (!of_flat_dt_is_compatible(root, "ibm,powernv"))
return 0;
hpte_init_native();
if (firmware_has_feature(FW_FEATURE_OPAL))
pnv_setup_machdep_opal();
#ifdef CONFIG_PPC_POWERNV_RTAS
else if (rtas.base)
pnv_setup_machdep_rtas();
#endif /* CONFIG_PPC_POWERNV_RTAS */
pr_debug("PowerNV detected !\n");
return 1;
}
/*
* Early initialization. Relocation is on but do not reference unbolted pages
*/
static void __init pSeries_init_early(void)
{
void *comport;
int iommu_off = 0;
unsigned int default_speed;
u64 physport;
DBG(" -> pSeries_init_early()\n");
fw_feature_init();
if (systemcfg->platform & PLATFORM_LPAR)
hpte_init_lpar();
else {
hpte_init_native();
iommu_off = (of_chosen &&
get_property(of_chosen, "linux,iommu-off", NULL));
}
generic_find_legacy_serial_ports(&physport, &default_speed);
if (systemcfg->platform & PLATFORM_LPAR)
find_udbg_vterm();
else if (physport) {
/* Map the uart for udbg. */
comport = (void *)ioremap(physport, 16);
udbg_init_uart(comport, default_speed);
ppc_md.udbg_putc = udbg_putc;
ppc_md.udbg_getc = udbg_getc;
ppc_md.udbg_getc_poll = udbg_getc_poll;
DBG("Hello World !\n");
}
iommu_init_early_pSeries();
pSeries_discover_pic();
DBG(" <- pSeries_init_early()\n");
}
