1. 26 Mar, 2008 1 commit
    • Michael Barkowski's avatar
      mpc8323erdb: Improve the system performance · 5bbeea86
      Michael Barkowski authored
      
      
      The following changes are based on kernel UCC ethernet performance:
      
      1.  Make the CSB bus pipeline depth as 4, and enable the repeat mode
      2.  Optimize transactions between QE and CSB.  Added CFG_SPCR_OPT
          switch to enable this setting.
      
      The following changes are based on the App Note AN3369 and
      verified to improve memory latency using LMbench:
      
      3.  CS0_CONFIG[AP_n_EN] is changed from 1 to 0
      4.  CS0_CONFIG[ODT_WR_CONFIG] set to 1.  Was a reserved setting
          previously.
      5.  TIMING_CFG_1[WRREC] is changed from 3clks to 2clks  (based on
          Twr=15ns, and this was already the setting in DDR_MODE)
      6.  TIMING_CFG_1[PRETOACT] is changed from 3clks to 2clks. (based on
          Trp=15ns)
      7.  TIMING_CFG_1[ACTTOPRE] is changed from 9clks to 6clks. (based on
          Tras=40ns)
      8.  TIMING_CFG_1[ACTTORW] is changed from 3clks to 2clks. (based on
          Trcd=15ns)
      9.  TIMING_CFG_1[REFREC] changed from 21 clks to 11clks.  (based on
          Trfc=75ns)
      10. TIMING_CFG_2[FOUR_ACT] is changed from 10 clks to 7clks.  (based
          on Tfaw=50ns)
      11. TIMING_CFG_2[ADD_LAT] and DDR_MODE[AL] changed from 0 to 1 (based
          on CL=3 and WL=2).
      Signed-off-by: default avatarMichael Barkowski <michael.barkowski@freescale.com>
      Acked-by: default avatarKim Phillips <kim.phillips@freescale.com>
      5bbeea86
  2. 17 Jan, 2008 1 commit
  3. 16 Jan, 2008 1 commit
  4. 11 Jan, 2008 2 commits
  5. 08 Jan, 2008 2 commits
  6. 17 Aug, 2007 1 commit
    • Kim Phillips's avatar
      mpc83xx: implement board_add_ram_info · bbea46f7
      Kim Phillips authored
      
      
      add board_add_ram_info, to make memory diagnostic output more
      consistent. u-boot banner output now looks like:
      
      DRAM:  256 MB (DDR1, 64-bit, ECC on)
      
      and for boards with SDRAM on the local bus, a line such as this is
      added:
      
      SDRAM: 64 MB (local bus)
      
      also replaced some magic numbers with their equivalent define names.
      Signed-off-by: default avatarKim Phillips <kim.phillips@freescale.com>
      bbea46f7
  7. 10 Aug, 2007 2 commits
  8. 22 Jun, 2007 2 commits
  9. 23 Apr, 2007 2 commits
  10. 02 Mar, 2007 7 commits
  11. 04 Nov, 2006 2 commits
  12. 11 Oct, 2005 1 commit
  13. 01 Aug, 2005 1 commit
  14. 28 Jul, 2005 1 commit