[U-Boot] [PATCH 2/3] fsl-ddr: change the default burst mode for DDR3

Kumar Gala galak at kernel.crashing.org
Sun Mar 21 19:09:10 CET 2010


From: Dave Liu <daveliu at freescale.com>

For 64B cacheline SoC, set the fixed 8-beat burst len,
for 32B cacheline SoC, set the On-The-Fly as default.

Signed-off-by: Dave Liu <daveliu at freescale.com>
---
 cpu/mpc8xxx/ddr/options.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/cpu/mpc8xxx/ddr/options.c b/cpu/mpc8xxx/ddr/options.c
index 3dcd33d..8e62279 100644
--- a/cpu/mpc8xxx/ddr/options.c
+++ b/cpu/mpc8xxx/ddr/options.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Freescale Semiconductor, Inc.
+ * Copyright 2008, 2010 Freescale Semiconductor, Inc.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -109,8 +109,13 @@ unsigned int populate_memctl_options(int all_DIMMs_registered,
 
 	/* Choose burst length. */
 #if defined(CONFIG_FSL_DDR3)
+#if defined(CONFIG_E500MC)
+	popts->OTF_burst_chop_en = 0;	/* on-the-fly burst chop disable */
+	popts->burst_length = DDR_BL8;	/* Fixed 8-beat burst len */
+#else
 	popts->OTF_burst_chop_en = 1;	/* on-the-fly burst chop */
 	popts->burst_length = DDR_OTF;	/* on-the-fly BC4 and BL8 */
+#endif
 #else
 	popts->burst_length = DDR_BL4;	/* has to be 4 for DDR2 */
 #endif
-- 
1.6.0.6



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