Add a common get_ram_size() function and modify the the
board-specific files to invoke that common implementation.
diff --git a/board/RRvision/RRvision.c b/board/RRvision/RRvision.c
index 8ed561d..d12ea82 100644
--- a/board/RRvision/RRvision.c
+++ b/board/RRvision/RRvision.c
@@ -229,53 +229,8 @@
{
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));
}