diff options
| author | Dale Rahn <drahn@cvs.openbsd.org> | 2005-01-16 17:50:10 +0000 |
|---|---|---|
| committer | Dale Rahn <drahn@cvs.openbsd.org> | 2005-01-16 17:50:10 +0000 |
| commit | 140f494a9d702e30ddb29aff133b40ea436a5607 (patch) | |
| tree | e905e8a63e48a591679925a4febd63181c4a1173 /sys | |
| parent | 9b209fa2ee148be2cb2760988a3e7f658ad19e47 (diff) | |
Seems that the instructions used for speed checking was wrong for pxa270,
this needs to be reverified on pxa255.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/arm/xscale/pxa2x0.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/sys/arch/arm/xscale/pxa2x0.c b/sys/arch/arm/xscale/pxa2x0.c index 543057847f5..c78e6d39fcf 100644 --- a/sys/arch/arm/xscale/pxa2x0.c +++ b/sys/arch/arm/xscale/pxa2x0.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pxa2x0.c,v 1.4 2005/01/13 17:54:24 drahn Exp $ */ +/* $OpenBSD: pxa2x0.c,v 1.5 2005/01/16 17:50:09 drahn Exp $ */ /* $NetBSD: pxa2x0.c,v 1.5 2003/12/12 16:42:44 thorpej Exp $ */ /* @@ -178,12 +178,8 @@ pxaip_attach(struct device *parent, struct device *self, void *aux) * Calculate clock speed * This takes 2 secs at most. */ -#if 0 cpuclock = pxaip_measure_cpuclock(sc) / 1000; -#else - cpuclock = 398108; -#endif printf(" CPU clock = %d.%03d MHz\n", cpuclock/1000, cpuclock%1000 ); /* @@ -278,7 +274,7 @@ static inline uint32_t read_clock_counter(void) { uint32_t x; - __asm __volatile("mrc p14, 0, %0, c1, c0, 0" : "=r" (x) ); + __asm __volatile("mrc p14, 0, %0, c1, c1, 0" : "=r" (x) ); return x; } @@ -297,9 +293,9 @@ pxaip_measure_cpuclock(struct pxaip_softc *sc) irq = disable_interrupts(I32_bit|F32_bit); - __asm __volatile( "mrc p14, 0, %0, c0, c0, 0" : "=r" (pmcr_save) ); + __asm __volatile( "mrc p14, 0, %0, c0, c1, 0" : "=r" (pmcr_save) ); /* Enable clock counter */ - __asm __volatile( "mcr p14, 0, %0, c0, c0, 0" : : "r" (0x0001) ); + __asm __volatile( "mcr p14, 0, %0, c0, c1, 0" : : "r" (0x0001) ); rtc0 = bus_space_read_4(sc->sc_bust, ioh, RTC_RCNR); /* Wait for next second starts */ @@ -310,7 +306,7 @@ pxaip_measure_cpuclock(struct pxaip_softc *sc) ; /* Wait for 1sec */ end = read_clock_counter(); - __asm __volatile( "mcr p14, 0, %0, c0, c0, 0" : : "r" (pmcr_save) ); + __asm __volatile( "mcr p14, 0, %0, c0, c1, 0" : : "r" (pmcr_save) ); restore_interrupts(irq); bus_space_unmap(sc->sc_bust, ioh, PXA2X0_RTC_SIZE); |