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* Driver/DDR: Moving Freescale DDR driver to a common driverYork Sun2013-11-25-2/+2
| | | | | | | Freescale DDR driver has been used for mpc83xx, mpc85xx, mpc86xx SoCs. The similar DDR controllers will be used for ARM-based SoCs. Signed-off-by: York Sun <yorksun@freescale.com>
* powerpc: Fix CamelCase warnings in DDR related codePriyanka Jain2013-10-16-1/+1
| | | | | | | | | | | Some DDR related structures present in fsl_ddr_dimm_params.h, fsl_ddr_sdram.h, ddr_spd.h has various parameters with embedded acronyms capitalized that trigger the CamelCase warning in checkpatch.pl Convert those variable names to smallcase naming convention and modify all files which are using these structures with modified structures. Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
* powerpc/mpc8xxx: Merge entries in DDR speed tableYork Sun2011-10-09-96/+69
| | | | | | | | | | | | | | | It is not necessary to keep multiple entries for the same setting in DDR speed tables. Merge them for smaller tables. Also restructure the tables for smaller size. Cleanup some typedefs. Enforce strict checking for speed table. If DIMM is running at higher than known speed, try to use the highest speed setting. If rank is unknown, it has to panic. Removed ODT overriding for P2020DS as it is not necessary. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/mpc85xx: Display a warning for unsupported DDR data ratesYork Sun2011-07-11-0/+5
| | | | | | | | If DDR initialziation uses a speed table and the speed is not matched, print a warning message instead of silently ignoring. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/8xxx: Refactor fsl_ddr_get_spd into common code from boardKumar Gala2011-04-04-30/+0
| | | | | | | | | | | | | | Move fsl_ddr_get_spd into common mpc8xxx/ddr/main.c as most boards pretty much do the same thing. The only variations are in how many controllers or DIMMs per controller exist. To make this work we standardize on the names of the SPD_EEPROM_ADDRESS defines based on the use case of the board. We allow boards to override get_spd to either do board specific fixups to the SPD data or deal with any unique behavior of how the SPD eeproms are wired up. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/8xxx: Replace fsl_ddr_get_mem_data_rate with get_ddr_freq()Kumar Gala2011-04-04-6/+1
| | | | | | | | | | Every 85xx board implements fsl_ddr_get_mem_data_rate via get_ddr_freq() and every 86xx board uses get_bus_freq(). If implement get_ddr_freq() as a static inline to call get_bus_freq() we can remove fsl_ddr_get_mem_data_rate altogether and just call get_ddr_freq() directly. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* fsl-ddr: use the 1T timing as default configurationDave Liu2009-01-23-0/+2
| | | | | | | | | For light loaded system, we use the 1T timing to gain better memory performance, but for some heavily loaded system, you have to add the 2T timing options to board files. Signed-off-by: Dave Liu <daveliu@freescale.com> Acked-by: Andy Fleming <afleming@freescale.com>
* Coding Style cleanup, update CHANGELOGWolfgang Denk2008-11-02-8/+8
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* Add DDR options setting on MPC8641HPCN boardHaiying Wang2008-10-18-36/+110
| | | | | | | | | | * Add board specific parameter table to choose correct cpo, clk_adjust, write_data_delay based on board ddr frequency and n_ranks. * Set odt_rd_cfg and odt_wr_cfg based on the dimm# and CS#. Signed-off-by: James Yang <James.Yang@freescale.com> Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
* Pass dimm parameters to populate populate controller optionsHaiying Wang2008-10-18-1/+4
| | | | | | | | | | | | | Because some dimm parameters like n_ranks needs to be used with the board frequency to choose the board parameters like clk_adjust etc. in the board_specific_paramesters table of the board ddr file, we need to pass the dimm parameters to the board file. * move ddr dimm parameters header file from /cpu to /include directory. * add ddr dimm parameters to populate board specific options. * Fix fsl_ddr_board_options() for all the 8xxx boards which call this function. Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
* FSL DDR: Convert MPC8641HPCN to new DDR code.Kumar Gala2008-08-27-0/+88
Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>