// board type, raspi2
#define RASPI 2

#if RASPI == 4
#define GPIO_BASE 0xFE200000
#else
#if RASPI == 3 || RASPI == 2
#define GPIO_BASE 0x3F200000
#else
#define GPIO_BASE 0x20200000
#endif // RASPI == 3 || RASPI == 2
#endif // RASPI == 4