BRIDGE_DEVIO0
#define BRIDGE_DEVIO(x) ((x)<=1 ? BRIDGE_DEVIO0+(x)*BRIDGE_DEVIO_2MB : BRIDGE_DEVIO2+((x)-2)*BRIDGE_DEVIO_1MB)
bd->mem.start = offset + (widget << SWIN_SIZE_BITS) + BRIDGE_DEVIO0;
bd->io.start = offset + (widget << SWIN_SIZE_BITS) + BRIDGE_DEVIO0;
bd->io.start = IP30_SWIN_BASE(widget) + BRIDGE_DEVIO0;
bd->mem.start = IP30_SWIN_BASE(widget) + BRIDGE_DEVIO0;