arch/mips/bcm47xx/serial.c

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
   7  */
   8
   9 #include <linux/module.h>
  10 #include <linux/init.h>
  11 #include <linux/serial.h>
  12 #include <linux/serial_8250.h>
  13 #include <linux/ssb/ssb.h>
  14 #include <bcm47xx.h>
  15
  16 static struct plat_serial8250_port uart8250_data[5];
  17
  18 static struct platform_device uart8250_device = {
  19         .name                   = "serial8250",
  20         .id                     = PLAT8250_DEV_PLATFORM,
  21         .dev                    = {
  22                 .platform_data  = uart8250_data,
  23         },
  24 };
  25
  26 static int __init uart8250_init(void)
  27 {
  28         int i;
  29         struct ssb_mipscore *mcore = &(ssb_bcm47xx.mipscore);
  30
  31         memset(&uart8250_data, 0,  sizeof(uart8250_data));
  32
  33         for (i = 0; i < mcore->nr_serial_ports; i++) {
  34                 struct plat_serial8250_port *p = &(uart8250_data[i]);
  35                 struct ssb_serial_port *ssb_port = &(mcore->serial_ports[i]);
  36
  37                 p->mapbase = (unsigned int) ssb_port->regs;
  38                 p->membase = (void *) ssb_port->regs;
  39                 p->irq = ssb_port->irq + 2;
  40                 p->uartclk = ssb_port->baud_base;
  41                 p->regshift = ssb_port->reg_shift;
  42                 p->iotype = UPIO_MEM;
  43                 p->flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
  44         }
  45         return platform_device_register(&uart8250_device);
  46 }
  47
  48 module_init(uart8250_init);
  49
  50 MODULE_AUTHOR("Aurelien Jarno <aurelien@aurel32.net>");
  51 MODULE_LICENSE("GPL");
  52 MODULE_DESCRIPTION("8250 UART probe driver for the BCM47XX platforms");