168 	uint32_t ip_sscr;  member
458 	port->ip_sscr = (ENTRIES_PER_RING * 3 / 4);  in port_init()
465 	port->ip_sscr |= SSCR_HIGH_SPD;  in port_init()
467 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in port_init()
500 	if (port->ip_sscr & SSCR_DMA_EN) {  in local_open()
501 		writel(port->ip_sscr | SSCR_DMA_PAUSE,  in local_open()
527 	port->ip_sscr &= ~SSCR_RX_THRESHOLD;  in local_open()
528 	port->ip_sscr |= 1;	/* default threshold */  in local_open()
533 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in local_open()
563 	port->ip_sscr &= ~SSCR_RX_THRESHOLD;  in set_rx_timeout()
564 	port->ip_sscr |= threshold;  in set_rx_timeout()
565 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in set_rx_timeout()
619 	if (port->ip_sscr & SSCR_DMA_EN) {  in config_port()
620 		writel(port->ip_sscr | SSCR_DMA_PAUSE,  in config_port()
652 	if (port->ip_sscr & SSCR_DMA_EN) {  in config_port()
653 		writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in config_port()
732 	if (total > 0 && !(port->ip_sscr & SSCR_DMA_EN)) {  in do_write()
733 		port->ip_sscr |= SSCR_DMA_EN;  in do_write()
734 		writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in do_write()
796 		port->ip_sscr |= sscrbits;  in set_notification()
800 		port->ip_sscr &= ~sscrbits;  in set_notification()
808 		port->ip_sscr |= SSCR_DMA_EN;  in set_notification()
810 		port->ip_sscr &= ~SSCR_DMA_EN;  in set_notification()
812 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in set_notification()
834 	if (port->ip_sscr & SSCR_DMA_EN) {  in set_mcr()
835 		writel(port->ip_sscr | SSCR_DMA_PAUSE,  in set_mcr()
854 	if (port->ip_sscr & SSCR_DMA_EN) {  in set_mcr()
855 		writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in set_mcr()
1017 		port->ip_sscr |= SSCR_HFC_EN;  in ioc3_change_speed()
1021 		port->ip_sscr &= ~SSCR_HFC_EN;  in ioc3_change_speed()
1023 	writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in ioc3_change_speed()
1162 		if (!(port->ip_sscr & SSCR_DMA_EN)) {  in do_read()
1163 			port->ip_sscr |= SSCR_DMA_EN;  in do_read()
1173 		writel(port->ip_sscr | SSCR_RX_DRAIN,  in do_read()
1200 			port->ip_sscr &= ~SSCR_DMA_EN;  in do_read()
1201 			writel(port->ip_sscr, &port->ip_serial_regs->sscr);  in do_read()
1378 						ip_sscr &  in do_read()
1596 					BUG_ON(!(port->ip_sscr  in ioc3uart_intr_one()
1598 					port->ip_sscr &= ~SSCR_DMA_EN;  in ioc3uart_intr_one()
1599 					writel(port->ip_sscr,  in ioc3uart_intr_one()