Add a common get_ram_size() function and modify the the
board-specific files to invoke that common implementation.
diff --git a/board/icecube/icecube.c b/board/icecube/icecube.c
index 27b7bab..3c9e4ee 100644
--- a/board/icecube/icecube.c
+++ b/board/icecube/icecube.c
@@ -26,44 +26,6 @@
#include <pci.h>
#ifndef CFG_RAMBOOT
-static long int dram_size(long int *base, long int maxsize)
-{
- volatile long int *addr;
- ulong cnt, val;
- ulong save[32]; /* to make test non-destructive */
- unsigned char i = 0;
-
- for (cnt = (maxsize / sizeof (long)) >> 1; 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));
- }
- }
- return (maxsize);
-}
-
static void sdram_start (int hi_addr)
{
long hi_addr_bit = hi_addr ? 0x01000000 : 0;
@@ -148,9 +110,9 @@
*(vu_long *)MPC5XXX_SDRAM_XLBSEL = 0x03000000;
#endif
sdram_start(0);
- test1 = dram_size((ulong *)CFG_SDRAM_BASE, 0x80000000);
+ test1 = get_ram_size((ulong *)CFG_SDRAM_BASE, 0x80000000);
sdram_start(1);
- test2 = dram_size((ulong *)CFG_SDRAM_BASE, 0x80000000);
+ test2 = get_ram_size((ulong *)CFG_SDRAM_BASE, 0x80000000);
if (test1 > test2) {
sdram_start(0);
dramsize = test1;
@@ -163,9 +125,9 @@
#ifdef CONFIG_MPC5200_DDR
*(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize + 0x0000001e;/* 2G */
sdram_start(0);
- test1 = dram_size((ulong *)(CFG_SDRAM_BASE + dramsize), 0x80000000);
+ test1 = get_ram_size((ulong *)(CFG_SDRAM_BASE + dramsize), 0x80000000);
sdram_start(1);
- test2 = dram_size((ulong *)(CFG_SDRAM_BASE + dramsize), 0x80000000);
+ test2 = get_ram_size((ulong *)(CFG_SDRAM_BASE + dramsize), 0x80000000);
if (test1 > test2) {
sdram_start(0);
dramsize2 = test1;