/* This is called early in setup.c.
* Use it to setup page table ppc_md stuff as well as udbg.
*/
void pSeriesLP_init_early(void)
{
pSeries_lpar_mm_init();
ppc_md.tce_build = tce_build_pSeriesLP;
ppc_md.tce_free_one = tce_free_one_pSeriesLP;
#ifdef CONFIG_SMP
smp_init_pSeries();
#endif
pSeries_pcibios_init_early();
/* The keyboard is not useful in the LPAR environment.
* Leave all the interfaces NULL.
*/
/* lookup the first virtual terminal number in case we don't have a com port.
* Zero is probably correct in case someone calls udbg before the init.
* The property is a pair of numbers. The first is the starting termno (the
* one we use) and the second is the number of terminals.
*/
u32 *termno;
struct device_node *np = find_path_device("/rtas");
if (np) {
termno = (u32 *)get_property(np, "ibm,termno", 0);
if (termno)
vtermno = termno[0];
}
ppc_md.udbg_putc = udbg_putcLP;
ppc_md.udbg_getc = udbg_getcLP;
ppc_md.udbg_getc_poll = udbg_getc_pollLP;
}
static void __init pSeries_setup_arch(void)
{
/* Fixup ppc_md depending on the type of interrupt controller */
if (ppc64_interrupt_controller == IC_OPEN_PIC) {
ppc_md.init_IRQ = pSeries_init_mpic;
ppc_md.get_irq = mpic_get_irq;
ppc_md.cpu_irq_down = mpic_teardown_this_cpu;
/* Allocate the mpic now, so that find_and_init_phbs() can
* fill the ISUs */
pSeries_setup_mpic();
} else {
ppc_md.init_IRQ = xics_init_IRQ;
ppc_md.get_irq = xics_get_irq;
ppc_md.cpu_irq_down = xics_teardown_cpu;
}
#ifdef CONFIG_SMP
smp_init_pSeries();
#endif
/* openpic global configuration register (64-bit format). */
/* openpic Interrupt Source Unit pointer (64-bit format). */
/* python0 facility area (mmio) (64-bit format) REAL address. */
/* init to some ~sane value until calibrate_delay() runs */
loops_per_jiffy = 50000000;
if (ROOT_DEV == 0) {
printk("No ramdisk, default root is /dev/sda2\n");
ROOT_DEV = Root_SDA2;
}
fwnmi_init();
/* Find and initialize PCI host bridges */
init_pci_config_tokens();
eeh_init();
find_and_init_phbs();
#ifdef CONFIG_DUMMY_CONSOLE
conswitchp = &dummy_con;
#endif
pSeries_nvram_init();
if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR)
vpa_init(boot_cpuid);
/* Choose an idle loop */
if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR) {
if (get_paca()->lppaca.shared_proc) {
printk(KERN_INFO "Using shared processor idle loop\n");
ppc_md.idle_loop = pseries_shared_idle;
} else {
printk(KERN_INFO "Using dedicated idle loop\n");
ppc_md.idle_loop = pseries_dedicated_idle;
}
} else {
printk(KERN_INFO "Using default idle loop\n");
ppc_md.idle_loop = default_idle;
}
}
