// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * BRIEF MODULE DESCRIPTION
 *      MyCable XXS1500 board support
 *
 * Copyright 2003, 2008 MontaVista Software Inc.
 * Author: MontaVista Software, Inc. <source@mvista.com>
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <asm/bootinfo.h>
#include <asm/reboot.h>
#include <asm/setup.h>
#include <asm/mach-au1x00/au1000.h>
#include <asm/mach-au1x00/gpio-au1000.h>
#include <prom.h>

const char *get_system_type(void)
{
        return "XXS1500";
}

void prom_putchar(char c)
{
        alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
}

static void xxs1500_reset(char *c)
{
        /* Jump to the reset vector */
        __asm__ __volatile__("jr\t%0" : : "r"(0xbfc00000));
}

static void xxs1500_power_off(void)
{
        while (1)
                asm volatile (
                "       .set    mips32                                  \n"
                "       wait                                            \n"
                "       .set    mips0                                   \n");
}

void __init board_setup(void)
{
        u32 pin_func;

        pm_power_off = xxs1500_power_off;
        _machine_halt = xxs1500_power_off;
        _machine_restart = xxs1500_reset;

        alchemy_gpio1_input_enable();
        alchemy_gpio2_enable();

        /* Set multiple use pins (UART3/GPIO) to UART (it's used as UART too) */
        pin_func  = alchemy_rdsys(AU1000_SYS_PINFUNC) & ~SYS_PF_UR3;
        pin_func |= SYS_PF_UR3;
        alchemy_wrsys(pin_func, AU1000_SYS_PINFUNC);

        /* Enable UART */
        alchemy_uart_enable(AU1000_UART3_PHYS_ADDR);
        /* Enable DTR (MCR bit 0) = USB power up */
        __raw_writel(1, (void __iomem *)KSEG1ADDR(AU1000_UART3_PHYS_ADDR + 0x18));
        wmb();
}

/******************************************************************************/

static struct resource xxs1500_pcmcia_res[] = {
        {
                .name   = "pcmcia-io",
                .flags  = IORESOURCE_MEM,
                .start  = AU1000_PCMCIA_IO_PHYS_ADDR,
                .end    = AU1000_PCMCIA_IO_PHYS_ADDR + 0x000400000 - 1,
        },
        {
                .name   = "pcmcia-attr",
                .flags  = IORESOURCE_MEM,
                .start  = AU1000_PCMCIA_ATTR_PHYS_ADDR,
                .end    = AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
        },
        {
                .name   = "pcmcia-mem",
                .flags  = IORESOURCE_MEM,
                .start  = AU1000_PCMCIA_MEM_PHYS_ADDR,
                .end    = AU1000_PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1,
        },
};

static struct platform_device xxs1500_pcmcia_dev = {
        .name           = "xxs1500_pcmcia",
        .id             = -1,
        .num_resources  = ARRAY_SIZE(xxs1500_pcmcia_res),
        .resource       = xxs1500_pcmcia_res,
};

static struct platform_device *xxs1500_devs[] __initdata = {
        &xxs1500_pcmcia_dev,
};

static int __init xxs1500_dev_init(void)
{
        irq_set_irq_type(AU1500_GPIO204_INT, IRQ_TYPE_LEVEL_HIGH);
        irq_set_irq_type(AU1500_GPIO201_INT, IRQ_TYPE_LEVEL_LOW);
        irq_set_irq_type(AU1500_GPIO202_INT, IRQ_TYPE_LEVEL_LOW);
        irq_set_irq_type(AU1500_GPIO203_INT, IRQ_TYPE_LEVEL_LOW);
        irq_set_irq_type(AU1500_GPIO205_INT, IRQ_TYPE_LEVEL_LOW);
        irq_set_irq_type(AU1500_GPIO207_INT, IRQ_TYPE_LEVEL_LOW);

        irq_set_irq_type(AU1500_GPIO0_INT, IRQ_TYPE_LEVEL_LOW);
        irq_set_irq_type(AU1500_GPIO1_INT, IRQ_TYPE_LEVEL_LOW);
        irq_set_irq_type(AU1500_GPIO2_INT, IRQ_TYPE_LEVEL_LOW);
        irq_set_irq_type(AU1500_GPIO3_INT, IRQ_TYPE_LEVEL_LOW);
        irq_set_irq_type(AU1500_GPIO4_INT, IRQ_TYPE_LEVEL_LOW); /* CF irq */
        irq_set_irq_type(AU1500_GPIO5_INT, IRQ_TYPE_LEVEL_LOW);

        return platform_add_devices(xxs1500_devs,
                                    ARRAY_SIZE(xxs1500_devs));
}
device_initcall(xxs1500_dev_init);