drivers/tty/serial/s3c2440.c

   1 /*
   2  * Driver for Samsung S3C2440 and S3C2442 SoC onboard UARTs.
   3  *
   4  * Ben Dooks, Copyright (c) 2003-2008 Simtec Electronics
   5  *      http://armlinux.simtec.co.uk/
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10 */
  11
  12 #include <linux/module.h>
  13 #include <linux/ioport.h>
  14 #include <linux/io.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/init.h>
  17 #include <linux/serial_core.h>
  18 #include <linux/serial.h>
  19
  20 #include <asm/irq.h>
  21 #include <mach/hardware.h>
  22
  23 #include <plat/regs-serial.h>
  24 #include <mach/regs-gpio.h>
  25
  26 #include "samsung.h"
  27
  28 static struct s3c24xx_uart_info s3c2440_uart_inf = {
  29         .name           = "Samsung S3C2440 UART",
  30         .type           = PORT_S3C2440,
  31         .fifosize       = 64,
  32         .rx_fifomask    = S3C2440_UFSTAT_RXMASK,
  33         .rx_fifoshift   = S3C2440_UFSTAT_RXSHIFT,
  34         .rx_fifofull    = S3C2440_UFSTAT_RXFULL,
  35         .tx_fifofull    = S3C2440_UFSTAT_TXFULL,
  36         .tx_fifomask    = S3C2440_UFSTAT_TXMASK,
  37         .tx_fifoshift   = S3C2440_UFSTAT_TXSHIFT,
  38         .def_clk_sel    = S3C2410_UCON_CLKSEL2,
  39         .num_clks       = 4,
  40         .clksel_mask    = S3C2440_UCON_CLKMASK,
  41         .clksel_shift   = S3C2440_UCON_CLKSHIFT,
  42 };
  43
  44 /* device management */
  45
  46 static int s3c2440_serial_probe(struct platform_device *dev)
  47 {
  48         dbg("s3c2440_serial_probe: dev=%p\n", dev);
  49         return s3c24xx_serial_probe(dev, &s3c2440_uart_inf);
  50 }
  51
  52 static struct platform_driver s3c2440_serial_driver = {
  53         .probe          = s3c2440_serial_probe,
  54         .remove         = __devexit_p(s3c24xx_serial_remove),
  55         .driver         = {
  56                 .name   = "s3c2440-uart",
  57                 .owner  = THIS_MODULE,
  58         },
  59 };
  60
  61 static int __init s3c2440_serial_init(void)
  62 {
  63         return s3c24xx_serial_init(&s3c2440_serial_driver, &s3c2440_uart_inf);
  64 }
  65
  66 static void __exit s3c2440_serial_exit(void)
  67 {
  68         platform_driver_unregister(&s3c2440_serial_driver);
  69 }
  70
  71 module_init(s3c2440_serial_init);
  72 module_exit(s3c2440_serial_exit);
  73
  74 MODULE_DESCRIPTION("Samsung S3C2440,S3C2442 SoC Serial port driver");
  75 MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
  76 MODULE_LICENSE("GPL v2");
  77 MODULE_ALIAS("platform:s3c2440-uart");