/* *  linux/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[COMMAND_LINE_SIZE];#ifdef CONFIG_FB_TX3912extern u_long tx3912fb_paddr;extern u_long tx3912fb_vaddr;extern u_long tx3912fb_size;#endif/* Do basic initialization */void __init prom_init(int argc, char **argv,		unsigned long magic, int *prom_vec){	u_long free_end, mem_size;	u_int i;	/*	 * collect args and prepare cmd_line	 */	for (i = 1; i < argc; i++) {		strcat(arcs_cmdline, argv[i]);		if (i < (argc - 1))			strcat(arcs_cmdline, " ");	}	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	/*	 * 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){}