arch/sh/kernel/cpu/sh3/serial-sh7710.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/serial_sci.h>
   3 #include <linux/serial_core.h>
   4 #include <linux/io.h>
   5 #include <cpu/serial.h>
   6
   7 #define PACR 0xa4050100
   8 #define PBCR 0xa4050102
   9
  10 static void sh7710_sci_init_pins(struct uart_port *port, unsigned int cflag)
  11 {
  12         if (port->mapbase == 0xA4400000) {
  13                 __raw_writew(__raw_readw(PACR) & 0xffc0, PACR);
  14                 __raw_writew(__raw_readw(PBCR) & 0x0fff, PBCR);
  15         } else if (port->mapbase == 0xA4410000)
  16                 __raw_writew(__raw_readw(PBCR) & 0xf003, PBCR);
  17 }
  18
  19 struct plat_sci_port_ops sh7710_sci_port_ops = {
  20         .init_pins      = sh7710_sci_init_pins,
  21 };