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/*

 *  arch/mips/philips/nino/prom.c

 *

 *  Copyright (C) 2001 Steven J. Hill (sjhill@realitydiluted.com)

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

 *  Early initialization code for the Philips Nino

 */

#include <linux/config.h>

#include <linux/init.h>

#include <linux/kernel.h>

#include <linux/string.h>

#include <asm/bootinfo.h>

#include <asm/addrspace.h>

#include <asm/page.h>

char arcs_cmdline[CL_SIZE];

#ifdef CONFIG_FB_TX3912

extern unsigned long tx3912fb_paddr;

extern unsigned long tx3912fb_vaddr;

extern unsigned long tx3912fb_size;

#endif

const char *get_system_type(void)

{

        return "Philips Nino";

}

/* Do basic initialization */

void __init prom_init(int argc, char **argv, unsigned long magic, int *prom_vec)

{

        unsigned long mem_size;

        strcpy(arcs_cmdline, "console=tty0 console=ttyS0,115200");

        mips_machgroup = MACH_GROUP_PHILIPS;

        mips_machtype = MACH_PHILIPS_NINO;

#ifdef CONFIG_NINO_4MB

        mem_size = 4 << 20;

#elif CONFIG_NINO_8MB

        mem_size = 8 << 20;

#elif CONFIG_NINO_16MB

        mem_size = 16 << 20;

#endif

#ifdef CONFIG_FB_TX3912

{

        unsigned long free_end;

        /*

         * The LCD controller requires that the framebuffer

         * start address fall within a 1MB segment and is

         * aligned on a 16 byte boundary. The way to assure

         * this is to place the framebuffer at the end of

         * memory and mark it as reserved.

         */

        free_end = (mem_size - tx3912fb_size) & PAGE_MASK;

        add_memory_region(0, free_end, BOOT_MEM_RAM);

        add_memory_region(free_end, (mem_size - free_end), BOOT_MEM_RESERVED);

        /*

         * Calculate physical and virtual addresses for

         * the beginning of the framebuffer.

         */

        tx3912fb_paddr = PHYSADDR(free_end);

        tx3912fb_vaddr = KSEG1ADDR(free_end);

}

#else

        add_memory_region(0, mem_size, BOOT_MEM_RAM);

#endif

}

void __init prom_free_prom_memory (void)

{

}