diff options
| author | York Sun <yorksun@freescale.com> | 2011-05-27 07:25:51 +0800 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2011-07-11 13:24:20 -0500 |
| commit | 51d498f17517c541e262ad14b043095dea6d0fe7 (patch) | |
| tree | 37fbbad6c68bc7b176663c4ff15b1b8619749590 /arch/powerpc/cpu/mpc8xxx/ddr/options.c | |
| parent | d2246549c7a71a3fca240e78bbcda6951195cfe3 (diff) | |
| download | u-boot-imx-51d498f17517c541e262ad14b043095dea6d0fe7.zip u-boot-imx-51d498f17517c541e262ad14b043095dea6d0fe7.tar.gz u-boot-imx-51d498f17517c541e262ad14b043095dea6d0fe7.tar.bz2 | |
powerpc/mpc8xxx: Add 16-bit support for DDR3
Add support for 16-bit DDR bus. Also deal with system using 64- and 32-bit
DDR devices.
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/cpu/mpc8xxx/ddr/options.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc8xxx/ddr/options.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/options.c b/arch/powerpc/cpu/mpc8xxx/ddr/options.c index 80c7046..02efe58 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/options.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/options.c @@ -438,7 +438,8 @@ unsigned int populate_memctl_options(int all_DIMMs_registered, popts->OTF_burst_chop_en = 0; /* on-the-fly burst chop disable */ popts->burst_length = DDR_BL8; /* Fixed 8-beat burst len */ #else - if (popts->data_bus_width == 1) { /* 32-bit bus */ + if ((popts->data_bus_width == 1) || (popts->data_bus_width == 2)) { + /* 32-bit or 16-bit bus */ popts->OTF_burst_chop_en = 0; popts->burst_length = DDR_BL8; } else { |