BCM2835_VCBUS_IO_BASE
.vcbus_start = BCM2835_VCBUS_IO_BASE,
#define BCM2836_VCBUS_IO_BASE BCM2835_VCBUS_IO_BASE
#define BCM2837_VCBUS_IO_BASE BCM2835_VCBUS_IO_BASE
#define BCM2838_VCBUS_IO_BASE BCM2835_VCBUS_IO_BASE