diff options
Diffstat (limited to 'bsps/sparc/leon3/include/bsp/leon3.h')
| -rw-r--r-- | bsps/sparc/leon3/include/bsp/leon3.h | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/bsps/sparc/leon3/include/bsp/leon3.h b/bsps/sparc/leon3/include/bsp/leon3.h index f3a9def60b..ed1a9e4efe 100644 --- a/bsps/sparc/leon3/include/bsp/leon3.h +++ b/bsps/sparc/leon3/include/bsp/leon3.h @@ -43,7 +43,9 @@ #include <grlib/irqamp-regs.h> #include <grlib/io.h> +#if !defined(LEON3_PLB_FREQUENCY_DEFINED_BY_GPTIMER) #include <grlib/ambapp.h> +#endif struct ambapp_dev; @@ -285,6 +287,25 @@ extern gptimer *LEON3_Timer_Regs; extern struct ambapp_dev *LEON3_Timer_Adev; /** + * @brief Gets the processor local bus frequency in Hz. + * + * @return Returns the frequency. + */ +static inline uint32_t leon3_processor_local_bus_frequency( void ) +{ +#if defined(LEON3_PLB_FREQUENCY_DEFINED_BY_GPTIMER) + return ( grlib_load_32( &LEON3_Timer_Regs->sreload ) + 1 ) * + LEON3_GPTIMER_0_FREQUENCY_SET_BY_BOOT_LOADER; +#else + /* + * For simplicity, assume that the interrupt controller uses the processor + * clock. This is at least true on the GR740. + */ + return ambapp_freq_get( ambapp_plb(), LEON3_IrqCtrl_Adev ); +#endif +} + +/** * @brief Gets the LEON up-counter low register (%ASR23) value. * * @return Returns the register value. @@ -347,11 +368,7 @@ static inline bool leon3_up_counter_is_available( void ) */ static inline uint32_t leon3_up_counter_frequency( void ) { - /* - * For simplicity, assume that the interrupt controller uses the processor - * clock. This is at least true on the GR740. - */ - return ambapp_freq_get( ambapp_plb(), LEON3_IrqCtrl_Adev ); + return leon3_processor_local_bus_frequency(); } /** |