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authorYork Sun <yorksun@freescale.com>2011-05-27 07:25:51 +0800
committerKumar Gala <galak@kernel.crashing.org>2011-07-11 13:24:20 -0500
commit51d498f17517c541e262ad14b043095dea6d0fe7 (patch)
tree37fbbad6c68bc7b176663c4ff15b1b8619749590 /arch/powerpc/include
parentd2246549c7a71a3fca240e78bbcda6951195cfe3 (diff)
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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/include')
-rw-r--r--arch/powerpc/include/asm/fsl_ddr_sdram.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/fsl_ddr_sdram.h b/arch/powerpc/include/asm/fsl_ddr_sdram.h
index 127a840..1778cc5 100644
--- a/arch/powerpc/include/asm/fsl_ddr_sdram.h
+++ b/arch/powerpc/include/asm/fsl_ddr_sdram.h
@@ -181,6 +181,9 @@ typedef struct memctl_options_partial_s {
unsigned int all_DIMMs_minimum_tRCD_ps;
} memctl_options_partial_t;
+#define DDR_DATA_BUS_WIDTH_64 0
+#define DDR_DATA_BUS_WIDTH_32 1
+#define DDR_DATA_BUS_WIDTH_16 2
/*
* Generalized parameters for memory controller configuration,
* might be a little specific to the FSL memory controller