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ip32-platform.c

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
 */
#include <linux/module.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>

#include <asm/ip32/mace.h>
#include <asm/ip32/ip32_ints.h>

#define MACEISA_SERIAL1_OFFS   offsetof(struct sgi_mace, isa.serial1)
#define MACEISA_SERIAL2_OFFS   offsetof(struct sgi_mace, isa.serial2)

#define MACE_PORT(offset,_irq)                                    \
{                                                     \
      .mapbase    = MACE_BASE + offset,                     \
      .irq        = _irq,                                   \
      .uartclk    = 1843200,                          \
      .iotype           = UPIO_MEM,                         \
      .flags            = UPF_SKIP_TEST|UPF_IOREMAP,              \
      .regshift   = 8,                                \
}

static struct plat_serial8250_port uart8250_data[] = {
      MACE_PORT(MACEISA_SERIAL1_OFFS, MACEISA_SERIAL1_IRQ),
      MACE_PORT(MACEISA_SERIAL2_OFFS, MACEISA_SERIAL2_IRQ),
      { },
};

static struct platform_device uart8250_device = {
      .name             = "serial8250",
      .id               = PLAT8250_DEV_PLATFORM,
      .dev              = {
            .platform_data    = uart8250_data,
      },
};

static int __init uart8250_init(void)
{
      return platform_device_register(&uart8250_device);
}

device_initcall(uart8250_init);

static __init int meth_devinit(void)
{
      struct platform_device *pd;
      int ret;

      pd = platform_device_alloc("meth", -1);
      if (!pd)
            return -ENOMEM;

      ret = platform_device_add(pd);
      if (ret)
            platform_device_put(pd);

      return ret;
}

device_initcall(meth_devinit);

MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("8250 UART probe driver for SGI IP32 aka O2");

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