86 	struct serialbuffer __iomem *rtx;  in serial_mpc8xx_probe()  local
115 	rtx = (struct serialbuffer __iomem *)&cp->cp_dpmem[CPM_SERIAL_BASE];  in serial_mpc8xx_probe()
122 	out_be32(&rtx->rxbd.cbd_bufaddr, (__force uint)&rtx->rxbuf);  in serial_mpc8xx_probe()
123 	out_be16(&rtx->rxbd.cbd_sc, 0);  in serial_mpc8xx_probe()
125 	out_be32(&rtx->txbd.cbd_bufaddr, (__force uint)&rtx->txbuf);  in serial_mpc8xx_probe()
126 	out_be16(&rtx->txbd.cbd_sc, 0);  in serial_mpc8xx_probe()
148 	setbits_be16(&rtx->txbd.cbd_sc, BD_SC_WRAP);  in serial_mpc8xx_probe()
149 	setbits_be16(&rtx->rxbd.cbd_sc, BD_SC_EMPTY | BD_SC_WRAP);  in serial_mpc8xx_probe()
154 	out_be32(&rtx->rxindex, 0);  in serial_mpc8xx_probe()
176 	struct serialbuffer	__iomem *rtx;  in serial_mpc8xx_putc()  local
181 	rtx = (struct serialbuffer __iomem *)&cpmp->cp_dpmem[CPM_SERIAL_BASE];  in serial_mpc8xx_putc()
184 	out_8(&rtx->txbuf, c);  in serial_mpc8xx_putc()
185 	out_be16(&rtx->txbd.cbd_datlen, 1);  in serial_mpc8xx_putc()
186 	setbits_be16(&rtx->txbd.cbd_sc, BD_SC_READY);  in serial_mpc8xx_putc()
188 	while (in_be16(&rtx->txbd.cbd_sc) & BD_SC_READY)  in serial_mpc8xx_putc()
198 	struct serialbuffer	__iomem *rtx;  in serial_mpc8xx_getc()  local
202 	rtx = (struct serialbuffer __iomem *)&cpmp->cp_dpmem[CPM_SERIAL_BASE];  in serial_mpc8xx_getc()
205 	while (in_be16(&rtx->rxbd.cbd_sc) & BD_SC_EMPTY)  in serial_mpc8xx_getc()
211 	rxindex = in_be32(&rtx->rxindex);  in serial_mpc8xx_getc()
212 	c = in_8(rtx->rxbuf + rxindex);  in serial_mpc8xx_getc()
216 	if (rxindex >= in_be16(&rtx->rxbd.cbd_datlen)) {  in serial_mpc8xx_getc()
218 		setbits_be16(&rtx->rxbd.cbd_sc, BD_SC_EMPTY);  in serial_mpc8xx_getc()
220 	out_be32(&rtx->rxindex, rxindex);  in serial_mpc8xx_getc()
228 	struct serialbuffer	__iomem *rtx;  in serial_mpc8xx_pending()  local
233 	rtx = (struct serialbuffer __iomem *)&cpmp->cp_dpmem[CPM_SERIAL_BASE];  in serial_mpc8xx_pending()
235 	return !(in_be16(&rtx->rxbd.cbd_sc) & BD_SC_EMPTY);  in serial_mpc8xx_pending()