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    /*
     * BRIEF MODULE DESCRIPTION
     *	MyCable XXS1500 board support
     *
     * Copyright 2003, 2008 MontaVista Software Inc.
     * Author: MontaVista Software, Inc. <source@mvista.com>
     *
     * This program is free software; you can redistribute it and/or modify
     * it under the terms of the GNU General Public License as published by
     * the Free Software Foundation; either version 2 of the License, or
     * (at your option) any later version.
     *
     * This program is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     * GNU General Public License for more details.
     *
     * You should have received a copy of the GNU General Public License
     * along with this program; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
     */
    
    #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>
    
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    #include <asm/mach-au1x00/au1000.h>
    #include <prom.h>
    
    const char *get_system_type(void)
    {
    	return "XXS1500";
    }
    
    void __init prom_init(void)
    {
    	unsigned char *memsize_str;
    	unsigned long memsize;
    
    	prom_argc = fw_arg0;
    	prom_argv = (char **)fw_arg1;
    	prom_envp = (char **)fw_arg2;
    
    	prom_init_cmdline();
    
    	memsize_str = prom_getenv("memsize");
    
    	if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
    
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    		memsize = 0x04000000;
    
    	add_memory_region(0, memsize, BOOT_MEM_RAM);
    }
    
    
    void prom_putchar(char c)
    
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    {
    	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;
    
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    	pin_func |= SYS_PF_UR3;
    
    	alchemy_wrsys(pin_func, AU1000_SYS_PINFUNC);
    
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    	/* 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);