[U-Boot-Users] Some puzzles on dram_size()

[SAM SONG]

Hi,



for (cnt = maxsize/sizeof(long); cnt > 0; cnt >>= 1) {
addr = base + cnt;	/* pointer arith! */
		
	        save[i++] = *addr;
	        *addr = ~cnt;
	}

	** write 0 to base address **
	addr = base;
	save[i] = *addr;
	*addr = 0;

	** check at base address **
	if ((val = *addr) != 0) {
		*addr = save[i];
		return (0);
	}

	for (cnt = 1; cnt <= maxsize/sizeof(long); cnt <<= 1)
{
		addr = base + cnt;	** pointer arith! **

		val = *addr;
		*addr = save[--i];

	if (val != (~cnt)) {
		return (cnt * sizeof(long));
	}
	} 


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