// SPDX-License-Identifier: GPL-2.0
#include <linux/serial_sci.h>
#include <linux/serial_core.h>
#include <linux/io.h>
#include <cpu/serial.h>
#include <cpu/gpio.h>

static void sh7720_sci_init_pins(struct uart_port *port, unsigned int cflag)
{
        unsigned short data;

        if (cflag & CRTSCTS) {
                /* enable RTS/CTS */
                if (port->mapbase == 0xa4430000) { /* SCIF0 */
                        /* Clear PTCR bit 9-2; enable all scif pins but sck */
                        data = __raw_readw(PORT_PTCR);
                        __raw_writew((data & 0xfc03), PORT_PTCR);
                } else if (port->mapbase == 0xa4438000) { /* SCIF1 */
                        /* Clear PVCR bit 9-2 */
                        data = __raw_readw(PORT_PVCR);
                        __raw_writew((data & 0xfc03), PORT_PVCR);
                }
        } else {
                if (port->mapbase == 0xa4430000) { /* SCIF0 */
                        /* Clear PTCR bit 5-2; enable only tx and rx  */
                        data = __raw_readw(PORT_PTCR);
                        __raw_writew((data & 0xffc3), PORT_PTCR);
                } else if (port->mapbase == 0xa4438000) { /* SCIF1 */
                        /* Clear PVCR bit 5-2 */
                        data = __raw_readw(PORT_PVCR);
                        __raw_writew((data & 0xffc3), PORT_PVCR);
                }
        }
}

struct plat_sci_port_ops sh7720_sci_port_ops = {
        .init_pins      = sh7720_sci_init_pins,
};