diff options
Diffstat (limited to 'bsps/sparc/leon3/include/bsp')
| -rw-r--r-- | bsps/sparc/leon3/include/bsp/leon3.h | 43 |
1 files changed, 38 insertions, 5 deletions
diff --git a/bsps/sparc/leon3/include/bsp/leon3.h b/bsps/sparc/leon3/include/bsp/leon3.h index fdb43b5817..ad33d73631 100644 --- a/bsps/sparc/leon3/include/bsp/leon3.h +++ b/bsps/sparc/leon3/include/bsp/leon3.h @@ -11,6 +11,8 @@ /* * Copyright (C) 2014, 2021 embedded brains GmbH & Co. KG * + * Copyright (C) 2015 Cobham Gaisler AB + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -173,13 +175,48 @@ static inline uint32_t leon3_get_cpu_count( const irqamp *regs ) return IRQAMP_MPSTAT_NCPU_GET( grlib_load_32( ®s->mpstat ) ) + 1; } +#if !defined(LEON3_GPTIMER_BASE) +/** + * @brief This object lets the user override which on-chip GPTIMER core will be + * used for system clock timer. + * + * This controls which timer core will be accociated with LEON3_Timer_Regs + * registers base address. This value will by destroyed during initialization. + * + * * 0 = Default configuration. GPTIMER[0] + * + * * 1 = GPTIMER[1] + * + * * 2 = GPTIMER[2] + * + * * ... + */ +extern int leon3_timer_core_index; + +/** + * @brief This object lets the user override system clock timer prescaler. + * + * This affects all timer instances on the system clock timer core determined + * by ::leon3_timer_core_index. + * + * * 0 = Default configuration. Use bootloader configured value. + * + * * N = Prescaler is set to N. N must not be less that number of timers. + * + * * 8 = Prescaler is set to 8 (the fastest prescaler possible on all HW) + * + * * ... + */ +extern unsigned int leon3_timer_prescaler; +#endif + /** * @brief This constant defines the index of the GPTIMER timer used by the * clock driver. */ #if defined(RTEMS_MULTIPROCESSING) #define LEON3_CLOCK_INDEX \ - ( rtems_configuration_get_user_multiprocessing_table() ? LEON3_Cpu_Index : 0 ) + ( leon3_timer_core_index != 0 ? 0 : 2 * LEON3_Cpu_Index ) #else #define LEON3_CLOCK_INDEX 0 #endif @@ -188,11 +225,7 @@ static inline uint32_t leon3_get_cpu_count( const irqamp *regs ) * @brief This constant defines the index of the GPTIMER timer used by the * CPU counter if the CPU counter uses the GPTIMER. */ -#if defined(RTEMS_SMP) #define LEON3_COUNTER_GPTIMER_INDEX ( LEON3_CLOCK_INDEX + 1 ) -#else -#define LEON3_COUNTER_GPTIMER_INDEX LEON3_CLOCK_INDEX -#endif /** * @brief This constant defines the frequency set by the boot loader of the |