Contributors: 3
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Paul Mundt |
105 |
88.24% |
4 |
66.67% |
| Andrew Morton |
13 |
10.92% |
1 |
16.67% |
| Greg Kroah-Hartman |
1 |
0.84% |
1 |
16.67% |
| Total |
119 |
|
6 |
|
// SPDX-License-Identifier: GPL-2.0
#include <linux/serial_sci.h>
#include <linux/serial_core.h>
#include <linux/io.h>
#include <cpu/serial.h>
#define SCPCR 0xA4000116
#define SCPDR 0xA4000136
static void sh770x_sci_init_pins(struct uart_port *port, unsigned int cflag)
{
unsigned short data;
/* We need to set SCPCR to enable RTS/CTS */
data = __raw_readw(SCPCR);
/* Clear out SCP7MD1,0, SCP6MD1,0, SCP4MD1,0*/
__raw_writew(data & 0x0fcf, SCPCR);
if (!(cflag & CRTSCTS)) {
/* We need to set SCPCR to enable RTS/CTS */
data = __raw_readw(SCPCR);
/* Clear out SCP7MD1,0, SCP4MD1,0,
Set SCP6MD1,0 = {01} (output) */
__raw_writew((data & 0x0fcf) | 0x1000, SCPCR);
data = __raw_readb(SCPDR);
/* Set /RTS2 (bit6) = 0 */
__raw_writeb(data & 0xbf, SCPDR);
}
}
struct plat_sci_port_ops sh770x_sci_port_ops = {
.init_pins = sh770x_sci_init_pins,
};