diff options
| author | Dave Liu <daveliu@freescale.com> | 2010-03-05 12:22:00 +0800 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2010-04-07 00:08:06 -0500 |
| commit | 22c9de064a218ae617bfeea35d2164532df91597 (patch) | |
| tree | 6e1584e8e71653185bdc0232568b1e73f976d722 /cpu | |
| parent | ec145e87b80f6764d17a6b0aebf521fe758c3fdc (diff) | |
| download | blackbird-obmc-uboot-22c9de064a218ae617bfeea35d2164532df91597.tar.gz blackbird-obmc-uboot-22c9de064a218ae617bfeea35d2164532df91597.zip | |
fsl-ddr: change the default burst mode for DDR3
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@freescale.com>
Diffstat (limited to 'cpu')
| -rw-r--r-- | cpu/mpc8xxx/ddr/options.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/cpu/mpc8xxx/ddr/options.c b/cpu/mpc8xxx/ddr/options.c index 3dcd33ddf2..46731c8153 100644 --- a/cpu/mpc8xxx/ddr/options.c +++ b/cpu/mpc8xxx/ddr/options.c @@ -1,9 +1,10 @@ /* - * 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 - * Version 2 as published by the Free Software Foundation. + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. */ #include <common.h> @@ -109,8 +110,13 @@ 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 |
