nixos-riscv/dts/lagarto_ox.h

22 lines
600 B
C

/* CPU is at 50 MHz */
#define CPU_CLOCK_FREQUENCY 50000000
/* The RTC timer is clocked at the CPU frequency / 1525, so
* around 32786.88 Hz */
//#define RTC_CLOCK_FREQUENCY 32786
/* FIXME: The real RTC frequency is around half that, as the divider was wrongly
* configured. So for now lets use the real frequency:
* 50e6 / (1525*2) = 16393.44262295082 -> 16393 Hz */
#define RTC_CLOCK_FREQUENCY 16393
#define UART_SPEED 115200
#define UART0_ADDR 0x40001000
#define UART0_ADDR_HEX 40001000
#define PLIC_ADDR 0x40800000
#define UART_ADDR 0x40001000
/* Toggles */
//#define ENABLE_SPI