// SPDX-License-Identifier: GPL-2.0-only
/*
 *  linux/arch/arm/mach-footbridge/isa.c
 *
 *  Copyright (C) 2004 Russell King.
 */
#include <linux/init.h>
#include <linux/serial_8250.h>

#include <asm/irq.h>
#include <asm/hardware/dec21285.h>

#include "common.h"

static struct resource rtc_resources[] = {
        [0] = {
                .start  = 0x70,
                .end    = 0x73,
                .flags  = IORESOURCE_IO,
        },
        [1] = {
                .start  = IRQ_ISA_RTC_ALARM,
                .end    = IRQ_ISA_RTC_ALARM,
                .flags  = IORESOURCE_IRQ,
        }
};

static struct platform_device rtc_device = {
        .name           = "rtc_cmos",
        .id             = -1,
        .resource       = rtc_resources,
        .num_resources  = ARRAY_SIZE(rtc_resources),
};

static struct resource serial_resources[] = {
        [0] = {
                .start  = 0x3f8,
                .end    = 0x3ff,
                .flags  = IORESOURCE_IO,
        },
        [1] = {
                .start  = 0x2f8,
                .end    = 0x2ff,
                .flags  = IORESOURCE_IO,
        },
};

static struct plat_serial8250_port serial_platform_data[] = {
        {
                .iobase         = 0x3f8,
                .irq            = IRQ_ISA_UART,
                .uartclk        = 1843200,
                .regshift       = 0,
                .iotype         = UPIO_PORT,
                .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
        },
        {
                .iobase         = 0x2f8,
                .irq            = IRQ_ISA_UART2,
                .uartclk        = 1843200,
                .regshift       = 0,
                .iotype         = UPIO_PORT,
                .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
        },
        { },
};

static struct platform_device serial_device = {
        .name                   = "serial8250",
        .id                     = PLAT8250_DEV_PLATFORM,
        .dev                    = {
                .platform_data  = serial_platform_data,
        },
        .resource               = serial_resources,
        .num_resources          = ARRAY_SIZE(serial_resources),
};

static int __init footbridge_isa_init(void)
{
        int err = 0;

        /* Personal server doesn't have RTC */
        isa_rtc_init();
        err = platform_device_register(&rtc_device);
        if (err)
                printk(KERN_ERR "Unable to register RTC device: %d\n", err);

        err = platform_device_register(&serial_device);
        if (err)
                printk(KERN_ERR "Unable to register serial device: %d\n", err);
        return 0;
}

arch_initcall(footbridge_isa_init);