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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2021-07-19 10:52:20 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2023-07-14 12:21:33 +0200 |
| commit | ac9c55b01766b0998beba9a20d446461429c4c9e (patch) | |
| tree | 0055f7b28f1770ff180f6e1f252756b5320911e5 /bsps/sparc/leon3/include/bsp | |
| parent | bsp/leon3: Add LEON3_APBUART_BASE (diff) | |
| download | rtems-ac9c55b01766b0998beba9a20d446461429c4c9e.tar.bz2 | |
bsp/leon3: LEON3_PLB_FREQUENCY_DEFINED_BY_GPTIMER
Diffstat (limited to 'bsps/sparc/leon3/include/bsp')
| -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 1402dfca1b..599d616aaf 100644 --- a/bsps/sparc/leon3/include/bsp/leon3.h +++ b/bsps/sparc/leon3/include/bsp/leon3.h @@ -42,7 +42,9 @@ #include <bspopts.h> #include <bsp/irqimpl.h> +#if !defined(LEON3_PLB_FREQUENCY_DEFINED_BY_GPTIMER) #include <grlib/ambapp.h> +#endif #ifdef __cplusplus extern "C" { @@ -195,6 +197,25 @@ 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. @@ -257,11 +278,7 @@ 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(); } /** |