S3C2410_URXH
dma->rx_conf.src_addr = p->port.mapbase + S3C2410_URXH;
return rd_reg(port, S3C2410_URXH);
ch = rd_reg(&dev->port, S3C2410_URXH);
ch = rd_reg(port, S3C2410_URXH);