void __init auxio_probe(void)
{
phandle node, auxio_nd;
struct linux_prom_registers auxregs[1];
struct resource r;
switch (sparc_cpu_model) {
case sparc_leon:
case sun4d:
case sun4:
return;
default:
break;
}
node = prom_getchild(prom_root_node);
auxio_nd = prom_searchsiblings(node, "auxiliary-io");
if(!auxio_nd) {
node = prom_searchsiblings(node, "obio");
node = prom_getchild(node);
auxio_nd = prom_searchsiblings(node, "auxio");
if(!auxio_nd) {
#ifdef CONFIG_PCI
/* There may be auxio on Ebus */
return;
#else
if(prom_searchsiblings(node, "leds")) {
/* VME chassis sun4m machine, no auxio exists. */
return;
}
prom_printf("Cannot find auxio node, cannot continue...\n");
prom_halt();
#endif
}
}
if(prom_getproperty(auxio_nd, "reg", (char *) auxregs, sizeof(auxregs)) <= 0)
return;
prom_apply_obio_ranges(auxregs, 0x1);
/* Map the register both read and write */
r.flags = auxregs[0].which_io & 0xF;
r.start = auxregs[0].phys_addr;
r.end = auxregs[0].phys_addr + auxregs[0].reg_size - 1;
auxio_register = of_ioremap(&r, 0, auxregs[0].reg_size, "auxio");
/* Fix the address on sun4m and sun4c. */
if((((unsigned long) auxregs[0].phys_addr) & 3) == 3 ||
sparc_cpu_model == sun4c)
auxio_register += (3 - ((unsigned long)auxio_register & 3));
set_auxio(AUXIO_LED, 0);
}
/* Drop into the prom, with the chance to continue with the 'go'
* prom command.
*/
void
prom_cmdline(void)
{
extern void install_obp_ticker(void);
extern void install_linux_ticker(void);
unsigned long flags;
spin_lock_irqsave(&prom_lock, flags);
install_obp_ticker();
(*(romvec->pv_abort))();
restore_current();
install_linux_ticker();
spin_unlock_irqrestore(&prom_lock, flags);
set_auxio(AUXIO_LED, 0);
}
static inline void led_toggle(void)
{
unsigned char val = get_auxio();
unsigned char on, off;
if (val & AUXIO_LED) {
on = 0;
off = AUXIO_LED;
} else {
on = AUXIO_LED;
off = 0;
}
set_auxio(on, off);
}
/* Drop into the prom, with the chance to continue with the 'go'
* prom command.
*/
void
prom_cmdline(void)
{
extern void install_obp_ticker(void);
extern void install_linux_ticker(void);
unsigned long flags;
if(!serial_console && prom_palette)
prom_palette (1);
spin_lock_irqsave(&prom_lock, flags);
install_obp_ticker();
(*(romvec->pv_abort))();
restore_current();
install_linux_ticker();
spin_unlock_irqrestore(&prom_lock, flags);
#ifdef CONFIG_SUN_AUXIO
set_auxio(AUXIO_LED, 0);
#endif
if(!serial_console && prom_palette)
prom_palette (0);
}
