203 	int tcr, speed;  in iomd_set_dma_speed()  local
206 		speed = 3;  in iomd_set_dma_speed()
208 		speed = 2;  in iomd_set_dma_speed()
210 		speed = 1;  in iomd_set_dma_speed()
212 		speed = 0;  in iomd_set_dma_speed()
215 	speed &= 3;  in iomd_set_dma_speed()
219 		tcr = (tcr & ~0x03) | speed;  in iomd_set_dma_speed()
223 		tcr = (tcr & ~0x0c) | (speed << 2);  in iomd_set_dma_speed()
227 		tcr = (tcr & ~0x30) | (speed << 4);  in iomd_set_dma_speed()
231 		tcr = (tcr & ~0xc0) | (speed << 6);  in iomd_set_dma_speed()
240 	return speed;  in iomd_set_dma_speed()