?? prom.c
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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_TX3912extern unsigned long tx3912fb_paddr;extern unsigned long tx3912fb_vaddr;extern unsigned long tx3912fb_size;#endifconst 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){}
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