1#include <linux/serial_sci.h>
2#include <linux/serial_core.h>
3#include <linux/io.h>
4#include <cpu/serial.h>
5
6#define SCPCR 0xA4000116
7#define SCPDR 0xA4000136
8
9static void sh770x_sci_init_pins(struct uart_port *port, unsigned int cflag)
10{
11	unsigned short data;
12
13	/* We need to set SCPCR to enable RTS/CTS */
14	data = __raw_readw(SCPCR);
15	/* Clear out SCP7MD1,0, SCP6MD1,0, SCP4MD1,0*/
16	__raw_writew(data & 0x0fcf, SCPCR);
17
18	if (!(cflag & CRTSCTS)) {
19		/* We need to set SCPCR to enable RTS/CTS */
20		data = __raw_readw(SCPCR);
21		/* Clear out SCP7MD1,0, SCP4MD1,0,
22		   Set SCP6MD1,0 = {01} (output)  */
23		__raw_writew((data & 0x0fcf) | 0x1000, SCPCR);
24
25		data = __raw_readb(SCPDR);
26		/* Set /RTS2 (bit6) = 0 */
27		__raw_writeb(data & 0xbf, SCPDR);
28	}
29}
30
31struct plat_sci_port_ops sh770x_sci_port_ops = {
32	.init_pins	= sh770x_sci_init_pins,
33};
34