diff options
Diffstat (limited to 'sys/arm/broadcom/bcm2835/bcm2835_cpufreq.c')
| -rw-r--r-- | sys/arm/broadcom/bcm2835/bcm2835_cpufreq.c | 59 |
1 files changed, 42 insertions, 17 deletions
diff --git a/sys/arm/broadcom/bcm2835/bcm2835_cpufreq.c b/sys/arm/broadcom/bcm2835/bcm2835_cpufreq.c index 2ea5b49..ab0f901 100644 --- a/sys/arm/broadcom/bcm2835/bcm2835_cpufreq.c +++ b/sys/arm/broadcom/bcm2835/bcm2835_cpufreq.c @@ -1,5 +1,5 @@ /*- - * Copyright (C) 2013-2014 Daisuke Aoyama <aoyama@peach.ne.jp> + * Copyright (C) 2013-2015 Daisuke Aoyama <aoyama@peach.ne.jp> * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -60,21 +60,28 @@ __FBSDID("$FreeBSD$"); #define DPRINTF(fmt, ...) #endif -#define HZ2MHZ(freq) ((freq) / (1000 * 1000)) -#define MHZ2HZ(freq) ((freq) * (1000 * 1000)) -#define OFFSET2MVOLT(val) (1200 + ((val) * 25)) -#define MVOLT2OFFSET(val) (((val) - 1200) / 25) - -#define DEFAULT_ARM_FREQUENCY 700 -#define DEFAULT_CORE_FREQUENCY 250 -#define DEFAULT_SDRAM_FREQUENCY 400 -#define DEFAULT_LOWEST_FREQ 300 -#define TRANSITION_LATENCY 1000 -#define MIN_OVER_VOLTAGE -16 -#define MAX_OVER_VOLTAGE 6 -#define MSG_ERROR -999999999 -#define MHZSTEP 100 -#define HZSTEP (MHZ2HZ(MHZSTEP)) +#define HZ2MHZ(freq) ((freq) / (1000 * 1000)) +#define MHZ2HZ(freq) ((freq) * (1000 * 1000)) + +#ifdef SOC_BCM2836 +#define OFFSET2MVOLT(val) (((val) / 1000)) +#define MVOLT2OFFSET(val) (((val) * 1000)) +#define DEFAULT_ARM_FREQUENCY 600 +#define DEFAULT_LOWEST_FREQ 600 +#else +#define OFFSET2MVOLT(val) (1200 + ((val) * 25)) +#define MVOLT2OFFSET(val) (((val) - 1200) / 25) +#define DEFAULT_ARM_FREQUENCY 700 +#define DEFAULT_LOWEST_FREQ 300 +#endif +#define DEFAULT_CORE_FREQUENCY 250 +#define DEFAULT_SDRAM_FREQUENCY 400 +#define TRANSITION_LATENCY 1000 +#define MIN_OVER_VOLTAGE -16 +#define MAX_OVER_VOLTAGE 6 +#define MSG_ERROR -999999999 +#define MHZSTEP 100 +#define HZSTEP (MHZ2HZ(MHZSTEP)) #define TZ_ZEROC 2732 #define VC_LOCK(sc) do { \ @@ -1740,6 +1747,23 @@ bcm2835_cpufreq_make_freq_list(device_t dev, struct cf_setting *sets, if (min_freq > cpufreq_lowest_freq) min_freq = cpufreq_lowest_freq; +#ifdef SOC_BCM2836 + /* XXX RPi2 have only 900/600MHz */ + idx = 0; + volts = sc->min_voltage_core; + sets[idx].freq = freq; + sets[idx].volts = volts; + sets[idx].lat = TRANSITION_LATENCY; + sets[idx].dev = dev; + idx++; + if (freq != min_freq) { + sets[idx].freq = min_freq; + sets[idx].volts = volts; + sets[idx].lat = TRANSITION_LATENCY; + sets[idx].dev = dev; + idx++; + } +#else /* from freq to min_freq */ for (idx = 0; idx < *count && freq >= min_freq; idx++) { if (freq > sc->arm_min_freq) @@ -1752,7 +1776,8 @@ bcm2835_cpufreq_make_freq_list(device_t dev, struct cf_setting *sets, sets[idx].dev = dev; freq -= MHZSTEP; } - *count = ++idx; +#endif + *count = idx; return (0); } |
