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/*
* bcm2835 (e.g. raspberry pi) architecture-specific stuff
*/
#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "../port/error.h"
#include "io.h"
#include "arm.h"
#define POWERREGS (VIRTIO+0x100000)
enum {
Wdogfreq = 65536,
};
/*
* Power management / watchdog registers
*/
enum {
Rstc = 0x1c>>2,
Password = 0x5A<<24,
CfgMask = 0x03<<4,
CfgReset = 0x02<<4,
Wdog = 0x24>>2,
};
void
archreset(void)
{
fpon();
}
void
archreboot(void)
{
u32int *r;
r = (u32int*)POWERREGS;
r[Wdog] = Password | 1;
r[Rstc] = Password | (r[Rstc] & ~CfgMask) | CfgReset;
coherence();
for(;;)
;
}
void
cpuidprint(void)
{
print("cpu%d: %dMHz ARM1176JZF-S\n", m->machno, m->cpumhz);
}
void
archbcmlink(void)
{
}
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