sead3-serial.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) 2012 MIPS Technologies, Inc.  All rights reserved.
 */
#include <linux/module.h>
#include <linux/init.h>
#include <linux/serial_8250.h>

#define UART(base, int)                         \
{                                   \
    .mapbase    = base,                     \
    .irq        = int,                      \
    .uartclk    = 14745600,                 \
    .iotype     = UPIO_MEM32,                   \
    .flags      = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP, \
    .regshift   = 2,                        \
}

static struct plat_serial8250_port uart8250_data[] = {
    UART(0x1f000900, MIPS_CPU_IRQ_BASE + 4),   /* ttyS0 = USB   */
    UART(0x1f000800, MIPS_CPU_IRQ_BASE + 4),   /* ttyS1 = RS232 */
    { },
};

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);
}

module_init(uart8250_init);

MODULE_AUTHOR("Chris Dearman <[email protected]>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("8250 UART probe driver for the SEAD-3 platform");