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| author | Dave Liu <daveliu@freescale.com> | 2009-03-14 12:48:30 +0800 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2009-03-30 13:33:50 -0500 |
| commit | c360ceac0286159f94d9d1a9496fc9858c8d9bec (patch) | |
| tree | fdd1868af478993fdb547171665c5c517ee6c071 /include/asm-ppc/fsl_ddr_dimm_params.h | |
| parent | 6a8197836702991468cead5ead073f589e2623ad (diff) | |
| download | u-boot-imx-c360ceac0286159f94d9d1a9496fc9858c8d9bec.zip u-boot-imx-c360ceac0286159f94d9d1a9496fc9858c8d9bec.tar.gz u-boot-imx-c360ceac0286159f94d9d1a9496fc9858c8d9bec.tar.bz2 | |
fsl-ddr: add the DDR3 SPD infrastructure
- support mirrored DIMMs, not support register DIMMs
- test passed on P2020DS board with MT9JSF12872AY-1G1D1
- test passed on MPC8569MDS board with MT8JSF12864HY-1G1D1
Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Travis Wheatley <travis.wheatley@freescale.com>
Diffstat (limited to 'include/asm-ppc/fsl_ddr_dimm_params.h')
| -rw-r--r-- | include/asm-ppc/fsl_ddr_dimm_params.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/asm-ppc/fsl_ddr_dimm_params.h b/include/asm-ppc/fsl_ddr_dimm_params.h index c794eed..55923e0 100644 --- a/include/asm-ppc/fsl_ddr_dimm_params.h +++ b/include/asm-ppc/fsl_ddr_dimm_params.h @@ -33,9 +33,15 @@ typedef struct dimm_params_s { /* used in computing base address of DIMMs */ unsigned long long base_address; + /* mirrored DIMMs */ + unsigned int mirrored_dimm; /* only for ddr3 */ /* DIMM timing parameters */ + unsigned int mtb_ps; /* medium timebase ps, only for ddr3 */ + unsigned int tAA_ps; /* minimum CAS latency time, only for ddr3 */ + unsigned int tFAW_ps; /* four active window delay, only for ddr3 */ + /* * SDRAM clock periods * The range for these are 1000-10000 so a short should be sufficient @@ -67,6 +73,7 @@ typedef struct dimm_params_s { unsigned int refresh_rate_ps; + /* DDR3 doesn't need these as below */ unsigned int tIS_ps; /* byte 32, spd->ca_setup */ unsigned int tIH_ps; /* byte 33, spd->ca_hold */ unsigned int tDS_ps; /* byte 34, spd->data_setup */ |