X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=board%2Fesd%2Fcpci750%2Fsdram_init.c;h=78d18801854658a817ff56e83357e6ff25f4091a;hb=f930922f061ea7bf585296859d1c14194c24b840;hp=6bdfc1d1cc00e39386327ec2ad189f7d00447493;hpb=534ff676a9c2ffd460e096754894e78551e4ed1e;p=u-boot

diff --git a/board/esd/cpci750/sdram_init.c b/board/esd/cpci750/sdram_init.c
index 6bdfc1d1cc..78d1880185 100644
--- a/board/esd/cpci750/sdram_init.c
+++ b/board/esd/cpci750/sdram_init.c
@@ -1252,7 +1252,7 @@ static int check_dimm (uchar slot, AUX_MEM_DIMM_INFO * dimmInfo)
 /* sets up the GT properly with information passed in */
 int setup_sdram (AUX_MEM_DIMM_INFO * info)
 {
-	ulong tmp, check;
+	ulong tmp;
 	ulong tmp_sdram_mode = 0;	/* 0x141c */
 	ulong tmp_dunit_control_low = 0;	/* 0x1404 */
 	int i;
@@ -1504,6 +1504,8 @@ int setup_sdram (AUX_MEM_DIMM_INFO * info)
 
 /*	for (i = info->slot * 2; i < ((info->slot * 2) + info->banks); i++) */
 	{
+	        int l, l1;
+
 		i = info->slot;
 		DP (printf
 		    ("\n*** Running a MRS cycle for bank %d ***\n", i));
@@ -1511,20 +1513,39 @@ int setup_sdram (AUX_MEM_DIMM_INFO * info)
 		/* map the bank */
 		memory_map_bank (i, 0, GB / 4);
 #if 1				/* test only */
-		/* set SDRAM mode */ /* To_do check it */
+
+		tmp = GTREGREAD (SDRAM_MODE);
+		GT_REG_WRITE (EXTENDED_DRAM_MODE, 0x0);
+		GT_REG_WRITE (SDRAM_OPERATION, 0x4);
+		while (GTREGREAD (SDRAM_OPERATION) != 0) {
+		        DP (printf
+			    ("\n*** SDRAM_OPERATION 1418 after SDRAM_MODE: Module still busy ... please wait... ***\n"));
+		}
+
+		GT_REG_WRITE (SDRAM_MODE, tmp | 0x80);
 		GT_REG_WRITE (SDRAM_OPERATION, 0x3);
-		check = GTREGREAD (SDRAM_OPERATION);
-		DP (printf
-		    ("\n*** SDRAM_OPERATION 1418 (0 = Normal Operation) = %08lx ***\n",
-		     check));
+		while (GTREGREAD (SDRAM_OPERATION) != 0) {
+		        DP (printf
+			    ("\n*** SDRAM_OPERATION 1418 after SDRAM_MODE: Module still busy ... please wait... ***\n"));
+		}
+		l1 = 0;
+		for (l=0;l<200;l++)
+		        l1 += GTREGREAD (SDRAM_OPERATION);
 
+		GT_REG_WRITE (SDRAM_MODE, tmp);
+		GT_REG_WRITE (SDRAM_OPERATION, 0x3);
+		while (GTREGREAD (SDRAM_OPERATION) != 0) {
+		        DP (printf
+			    ("\n*** SDRAM_OPERATION 1418 after SDRAM_MODE: Module still busy ... please wait... ***\n"));
+		}
 
 		/* switch back to normal operation mode */
-		GT_REG_WRITE (SDRAM_OPERATION, 0);
-		check = GTREGREAD (SDRAM_OPERATION);
-		DP (printf
-		    ("\n*** SDRAM_OPERATION 1418 (0 = Normal Operation) = %08lx ***\n",
-		     check));
+		GT_REG_WRITE (SDRAM_OPERATION, 0x5);
+		while (GTREGREAD (SDRAM_OPERATION) != 0) {
+		        DP (printf
+			    ("\n*** SDRAM_OPERATION 1418 after SDRAM_MODE: Module still busy ... please wait... ***\n"));
+		}
+
 #endif /* test only */
 		/* unmap the bank */
 		memory_map_bank (i, 0, 0);