171 	uint32_t ip_sscr;  member
461 	port->ip_sscr = (ENTRIES_PER_RING * 3 / 4);  in port_init()
468 	port->ip_sscr |= SSCR_HIGH_SPD;  in port_init()
470 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in port_init()
503 	if (port->ip_sscr & SSCR_DMA_EN) {  in local_open()
504 		writel(port->ip_sscr | SSCR_DMA_PAUSE,  in local_open()
530 	port->ip_sscr &= ~SSCR_RX_THRESHOLD;  in local_open()
531 	port->ip_sscr |= 1;	/* default threshold */  in local_open()
536 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in local_open()
566 	port->ip_sscr &= ~SSCR_RX_THRESHOLD;  in set_rx_timeout()
567 	port->ip_sscr |= threshold;  in set_rx_timeout()
568 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in set_rx_timeout()
622 	if (port->ip_sscr & SSCR_DMA_EN) {  in config_port()
623 		writel(port->ip_sscr | SSCR_DMA_PAUSE,  in config_port()
655 	if (port->ip_sscr & SSCR_DMA_EN) {  in config_port()
656 		writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in config_port()
735 	if (total > 0 && !(port->ip_sscr & SSCR_DMA_EN)) {  in do_write()
736 		port->ip_sscr |= SSCR_DMA_EN;  in do_write()
737 		writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in do_write()
799 		port->ip_sscr |= sscrbits;  in set_notification()
803 		port->ip_sscr &= ~sscrbits;  in set_notification()
811 		port->ip_sscr |= SSCR_DMA_EN;  in set_notification()
813 		port->ip_sscr &= ~SSCR_DMA_EN;  in set_notification()
815 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in set_notification()
837 	if (port->ip_sscr & SSCR_DMA_EN) {  in set_mcr()
838 		writel(port->ip_sscr | SSCR_DMA_PAUSE,  in set_mcr()
857 	if (port->ip_sscr & SSCR_DMA_EN) {  in set_mcr()
858 		writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in set_mcr()
1020 		port->ip_sscr |= SSCR_HFC_EN;  in ioc3_change_speed()
1024 		port->ip_sscr &= ~SSCR_HFC_EN;  in ioc3_change_speed()
1026 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in ioc3_change_speed()
1165 		if (!(port->ip_sscr & SSCR_DMA_EN)) {  in do_read()
1166 			port->ip_sscr |= SSCR_DMA_EN;  in do_read()
1176 		writel(port->ip_sscr | SSCR_RX_DRAIN,  in do_read()
1203 			port->ip_sscr &= ~SSCR_DMA_EN;  in do_read()
1204 			writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in do_read()
1381 						ip_sscr &  in do_read()
1599 					BUG_ON(!(port->ip_sscr  in ioc3uart_intr_one()
1601 					port->ip_sscr &= ~SSCR_DMA_EN;  in ioc3uart_intr_one()
1602 					writel(port->ip_sscr,  in ioc3uart_intr_one()