REGBASE
#define IC_GROUP0_PEND (REGBASE + 0x38000)
#define IC_GROUP0_MASK (REGBASE + 0x38008)
#define IDT434_REG_BASE ((volatile void *) KSEG1ADDR(REGBASE))
.mapbase = REGBASE + UART0BASE,
.start = REGBASE + GPIOBASE,
.end = REGBASE + GPIOBASE + sizeof(struct rb532_gpio_reg) - 1,
.membase = (char *)KSEG1ADDR(REGBASE + UART0BASE),