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authorwdenk <wdenk>2003-08-28 09:41:22 +0000
committerwdenk <wdenk>2003-08-28 09:41:22 +0000
commitd94f92cbd7f4a4d3bf0d5d963b709c686e8f6633 (patch)
treec85dd4a10c5a68ca09b9139c1b6428d55ada6451 /board/rmu
parente0ac62d798ce60ec5d43125d4786e58b0d881836 (diff)
* Fix ICU862 environment problem
* Fix RAM size detection for RMU board * Implement "reset" for MGT5100/MPC5200 systems
Diffstat (limited to 'board/rmu')
-rw-r--r--board/rmu/rmu.c19
1 files changed, 13 insertions, 6 deletions
diff --git a/board/rmu/rmu.c b/board/rmu/rmu.c
index c9925d09a36..331fb9877a9 100644
--- a/board/rmu/rmu.c
+++ b/board/rmu/rmu.c
@@ -96,7 +96,7 @@ long int initdram (int board_type)
{
volatile immap_t *immap = (immap_t *)CFG_IMMR;
volatile memctl8xx_t *memctl = &immap->im_memctl;
- long int size10 ;
+ long int size9 ;
upmconfig(UPMA, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint));
@@ -109,7 +109,7 @@ long int initdram (int board_type)
memctl->memc_or1 = CFG_OR1_PRELIM;
memctl->memc_br1 = CFG_BR1_PRELIM;
- memctl->memc_mamr = CFG_MAMR_10COL & (~(MAMR_PTAE)); /* no refresh yet */
+ memctl->memc_mamr = CFG_MAMR_9COL & (~(MAMR_PTAE)); /* no refresh yet */
udelay(200);
@@ -122,13 +122,20 @@ long int initdram (int board_type)
udelay (1000);
- /* Check Bank 0 Memory Size
- * try 10 column mode
+ /* Check Bank 0 Memory Size,
+ * 9 column mode
*/
- size10 = dram_size (CFG_MAMR_10COL, (ulong *)SDRAM_BASE_PRELIM, SDRAM_MAX_SIZE) ;
+ size9 = dram_size (CFG_MAMR_9COL, (ulong *)SDRAM_BASE_PRELIM, SDRAM_MAX_SIZE) ;
- return (size10);
+ /*
+ * Final mapping:
+ */
+
+ memctl->memc_or1 = ((-size9) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
+ udelay (1000);
+
+ return (size9);
}
/* ------------------------------------------------------------------------- */