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path: root/cpu/mpc85xx/ddr-gen3.c
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* ppc/8xxx: Remove ddr_pd_cntl register since it doesn't existKumar Gala2009-09-08-1/+0
| | | | | | | | The ddr_pd_cntl isn't defined in any reference manual and thus we wil remove especially since we set it to 0, which would most likely be its POR value. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* fsl-ddr: add the DDR3 SPD infrastructureDave Liu2009-03-30-2/+4
| | | | | | | | | - 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>
* Fix mpc85xx ddr-gen3 ddr_sdram_cfg.Ed Swarthout2009-03-09-2/+2
| | | | | | | Commit e1be0d25, "32bit BUg fix for DDR2 on 8572" prevented other sdram_cfg bits (such as ecc and self_refresh_in_sleep) from being set. Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com>
* 32bit BUg fix for DDR2 on 8572Poonam_Aggrwal-b108122009-02-16-1/+8
| | | | | | | This errata fix is required for 32 bit DDR2 controller on 8572. May also be required for P10XX20XX platforms Signed-off-by: Poonam_Agarwal-b10812 <b10812@lc1106.zin33.ap.freescale.net>
* 85xx: Fix the incorrect register used for DDR erratum1Dave Liu2008-10-24-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 8572 DDR erratum1: DDR controller may enter an illegal state when operating in 32-bit bus mode with 4-beat bursts. Description: When operating with a 32-bit bus, it is recommended that DDR_SDRAM_CFG[8_BE] is cleared when DDR2 memories are used. This forces the DDR controller to use 4-beat bursts when communicating to the DRAMs. However, an issue exists that could lead to data corruption when the DDR controller is in 32-bit bus mode while using 4-beat bursts. Projected Impact: If the DDR controller is operating in 32-bit bus mode with 4-beat bursts, then the controller may enter into a bad state. All subsequent reads from memory is corrupted. Four-beat bursts with a 32-bit bus only is used with DDR2 memories. Therefore, this erratum does not affect DDR3 mode. Work Arounds: To work around this issue, software must set DEBUG_1[31] in DDR memory mapped space (CCSRBAR offset + 0x2f00 for DDR_1 and CCSRBAR offset + 0x6f00 for DDR_2). Currenlty, the code is using incorrect register DDR_SDRAM_CFG_2 as condition, but it should be DDR_SDRAM_CFG register. Signed-off-by: Dave Liu <daveliu@freescale.com>
* rename CFG_ macros to CONFIG_SYSJean-Christophe PLAGNIOL-VILLARD2008-10-18-2/+2
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* FSL DDR: Add 85xx specific register settingKumar Gala2008-08-27-0/+105
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>