LXR linux/arch/sh/kernel/cpu/sh3/serial-sh7720.c

   1#include <linux/serial_sci.h>
   2#include <linux/serial_core.h>
   3#include <linux/io.h>
   4#include <cpu/serial.h>
   5#include <cpu/gpio.h>
   6
   7static void sh7720_sci_init_pins(struct uart_port *port, unsigned int cflag)
   8{
   9        unsigned short data;
  10
  11        if (cflag & CRTSCTS) {
  12                /* enable RTS/CTS */
  13                if (port->mapbase == 0xa4430000) { /* SCIF0 */
  14                        /* Clear PTCR bit 9-2; enable all scif pins but sck */
  15                        data = __raw_readw(PORT_PTCR);
  16                        __raw_writew((data & 0xfc03), PORT_PTCR);
  17                } else if (port->mapbase == 0xa4438000) { /* SCIF1 */
  18                        /* Clear PVCR bit 9-2 */
  19                        data = __raw_readw(PORT_PVCR);
  20                        __raw_writew((data & 0xfc03), PORT_PVCR);
  21                }
  22        } else {
  23                if (port->mapbase == 0xa4430000) { /* SCIF0 */
  24                        /* Clear PTCR bit 5-2; enable only tx and rx  */
  25                        data = __raw_readw(PORT_PTCR);
  26                        __raw_writew((data & 0xffc3), PORT_PTCR);
  27                } else if (port->mapbase == 0xa4438000) { /* SCIF1 */
  28                        /* Clear PVCR bit 5-2 */
  29                        data = __raw_readw(PORT_PVCR);
  30                        __raw_writew((data & 0xffc3), PORT_PVCR);
  31                }
  32        }
  33}
  34
  35struct plat_sci_port_ops sh7720_sci_port_ops = {
  36        .init_pins      = sh7720_sci_init_pins,
  37};
  38