mm/h8300: prepare for removing num_physpages and simplify mem_init()

void __init mem_init(void)

{

	int codek = 0, datak = 0, initk = 0;

	/* DAVIDM look at setup memory map generically with reserved area */

	unsigned long tmp;

	extern unsigned long  _ramend, _ramstart;

	unsigned long len = &_ramend - &_ramstart;

	unsigned long start_mem = memory_start; /* DAVIDM - these must start at end of kernel */

	unsigned long end_mem   = memory_end; /* DAVIDM - this must not include kernel stack at top */

	unsigned long codesize = _etext - _stext;

#ifdef DEBUG

	printk(KERN_DEBUG "Mem_init: start=%lx, end=%lx\n", start_mem, end_mem);

#endif

	end_mem &= PAGE_MASK;

	high_memory = (void *) end_mem;

	pr_devel("Mem_init: start=%lx, end=%lx\n", memory_start, memory_end);

	start_mem = PAGE_ALIGN(start_mem);

	max_mapnr = num_physpages = MAP_NR(high_memory);

	high_memory = (void *) (memory_end & PAGE_MASK);

	max_mapnr = MAP_NR(high_memory);

	/* this will put all low memory onto the freelists */

	free_all_bootmem();

	codek = (_etext - _stext) >> 10;

	datak = (__bss_stop - _sdata) >> 10;

	initk = (__init_begin - __init_end) >> 10;

	tmp = nr_free_pages() << PAGE_SHIFT;

	printk(KERN_INFO "Memory available: %luk/%luk RAM, %luk/%luk ROM (%dk kernel code, %dk data)\n",

	       tmp >> 10,

	       len >> 10,

	       (rom_length > 0) ? ((rom_length >> 10) - codek) : 0,

	       rom_length >> 10,

	       codek,

	       datak

	       );

	mem_init_print_info(NULL);

	if (rom_length > 0 && rom_length > codesize)

		pr_info("Memory available: %luK/%luK ROM\n",

			(rom_length - codesize) >> 10, rom_length >> 10);

}