diff options
Diffstat (limited to 'bsp/drivers/fe300prci/fe300prci_driver.h')
| -rw-r--r-- | bsp/drivers/fe300prci/fe300prci_driver.h | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/bsp/drivers/fe300prci/fe300prci_driver.h b/bsp/drivers/fe300prci/fe300prci_driver.h index 052edcb..75dcf00 100644 --- a/bsp/drivers/fe300prci/fe300prci_driver.h +++ b/bsp/drivers/fe300prci/fe300prci_driver.h @@ -3,19 +3,26 @@ #ifndef _FE300PRCI_DRIVER_H_ #define _FE300PRCI_DRIVER_H_ -#include <unistd.h> +__BEGIN_DECLS +#include <unistd.h> /* Measure and return the approximate frequency of the * CPU, as given by measuring the mcycle counter against * the mtime ticks. */ -static uint32_t PRCI_measure_mcycle_freq(uint32_t mtime_ticks, uint32_t mtime_freq); +uint32_t PRCI_measure_mcycle_freq(uint32_t mtime_ticks, uint32_t mtime_freq); /* Safely switch over to the HFROSC using the given div * and trim settings. */ -static void PRCI_use_hfrosc(int div, int trim); +void PRCI_use_hfrosc(int div, int trim); + +/* Safely switch over to the 16MHz HFXOSC, + * applying the finaldiv clock divider (1 is the lowest + * legal value). + */ +void PRCI_use_hfxosc(uint32_t finaldiv); /* Safely switch over to the PLL using the given * settings. @@ -27,7 +34,7 @@ static void PRCI_use_hfrosc(int div, int trim); * doesn't protect against you making it too fast or slow.) */ -static void PRCI_use_pll(int refsel, int bypass, +void PRCI_use_pll(int refsel, int bypass, int r, int f, int q, int finaldiv, int hfroscdiv, int hfrosctrim); @@ -36,7 +43,7 @@ static void PRCI_use_pll(int refsel, int bypass, * (on the current FE310 Dev Platforms, an external LFROSC is * used as it is more power efficient). */ -static void PRCI_use_default_clocks(); +void PRCI_use_default_clocks(); /* This routine will adjust the HFROSC trim * as the PLL clock source, measure the resulting @@ -50,5 +57,7 @@ static void PRCI_use_default_clocks(); */ uint32_t PRCI_set_hfrosctrim_for_f_cpu(uint32_t f_cpu); +__END_DECLS + #endif |