From c83bf6a2d00ef846c1fb2b0c60540f03ef203125 Mon Sep 17 00:00:00 2001 From: wdenk Date: Tue, 6 Jan 2004 22:38:14 +0000 Subject: Add a common get_ram_size() function and modify the the board-specific files to invoke that common implementation. --- board/c2mon/c2mon.c | 47 +---------------------------------------------- 1 file changed, 1 insertion(+), 46 deletions(-) (limited to 'board/c2mon/c2mon.c') diff --git a/board/c2mon/c2mon.c b/board/c2mon/c2mon.c index 0fdcebe..873ff8c 100644 --- a/board/c2mon/c2mon.c +++ b/board/c2mon/c2mon.c @@ -227,53 +227,8 @@ static long int dram_size (long int mamr_value, long int *base, { volatile immap_t *immap = (immap_t *) CFG_IMMR; volatile memctl8xx_t *memctl = &immap->im_memctl; - volatile long int *addr; - ulong cnt, val, size; - ulong save[32]; /* to make test non-destructive */ - unsigned char i = 0; memctl->memc_mamr = mamr_value; - 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) { - /* Restore the original data before leaving the function. - */ - *addr = save[i]; - for (cnt = 1; cnt <= maxsize / sizeof(long); cnt <<= 1) { - addr = (volatile ulong *) base + cnt; - *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)) { - size = cnt * sizeof (long); - /* Restore the original data before returning - */ - for (cnt <<= 1; cnt <= maxsize / sizeof (long); cnt <<= 1) { - addr = (volatile ulong *) base + cnt; - *addr = save[--i]; - } - return (size); - } - } - return (maxsize); + return (get_ram_size(base, maxsize)); } -- cgit v1.1