diff options
Diffstat (limited to 'bsp/env/freedom-e300-arty')
-rw-r--r-- | bsp/env/freedom-e300-arty/init.c | 23 | ||||
-rw-r--r-- | bsp/env/freedom-e300-arty/platform.h | 3 |
2 files changed, 23 insertions, 3 deletions
diff --git a/bsp/env/freedom-e300-arty/init.c b/bsp/env/freedom-e300-arty/init.c index c766e98..35b1104 100644 --- a/bsp/env/freedom-e300-arty/init.c +++ b/bsp/env/freedom-e300-arty/init.c @@ -9,11 +9,30 @@ extern int main(int argc, char** argv); extern void trap_entry(); -uint32_t get_cpu_freq() +static unsigned long get_cpu_freq() { return 65000000; } +unsigned long get_timer_freq() +{ + return get_cpu_freq(); +} + +uint64_t get_timer_value() +{ +#if __riscv_xlen == 32 + while (1) { + uint32_t hi = read_csr(mcycleh); + uint32_t lo = read_csr(mcycle); + if (hi == read_csr(mcycleh)) + return ((uint64_t)hi << 32) | lo; + } +#else + return read_csr(mcycle); +#endif +} + static void uart_init(size_t baud_rate) { GPIO_REG(GPIO_IOF_SEL) &= ~IOF0_UART0_MASK; @@ -59,8 +78,6 @@ void _init() printf("core freq at %d Hz\n", get_cpu_freq()); write_csr(mtvec, &trap_entry); - - // _exit(main(0, NULL)); } diff --git a/bsp/env/freedom-e300-arty/platform.h b/bsp/env/freedom-e300-arty/platform.h index 1f62956..d5d6dda 100644 --- a/bsp/env/freedom-e300-arty/platform.h +++ b/bsp/env/freedom-e300-arty/platform.h @@ -119,4 +119,7 @@ #define HAS_BOARD_BUTTONS #include "hifive1.h" +unsigned long get_timer_freq(void); +uint64_t get_timer_value(void); + #endif /* _SIFIVE_PLATFORM_H */ |