ip32-platform.c

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/*
 * 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 ([email protected])
 */
#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);

static __init int sgio2audio_devinit(void)
{
    struct platform_device *pd;
    int ret;

    pd = platform_device_alloc("sgio2audio", -1);
    if (!pd)
        return -ENOMEM;

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

    return ret;
}

device_initcall(sgio2audio_devinit);

static __init int sgio2btns_devinit(void)
{
    return IS_ERR(platform_device_register_simple("sgibtns", -1, NULL, 0));
}

device_initcall(sgio2btns_devinit);

static struct resource sgio2_cmos_rsrc[] = {
    {
        .start = 0x70,
        .end   = 0x71,
        .flags = IORESOURCE_IO
    }
};

static __init int sgio2_cmos_devinit(void)
{
    return IS_ERR(platform_device_register_simple("rtc_cmos", -1,
                              sgio2_cmos_rsrc, 1));
}

device_initcall(sgio2_cmos_devinit);

MODULE_AUTHOR("Ralf Baechle <[email protected]>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("8250 UART probe driver for SGI IP32 aka O2");