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  • 2020-06-01
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    • York Sun's avatar
      eb539412
      powerpc/mpc85xx: software workaround for DDR erratum A-004468 · eb539412
      York Sun authored
      
      Boot space translation utilizes the pre-translation address to select
      the DDR controller target. However, the post-translation address will be
      presented to the selected DDR controller. It is possible that the pre-
      translation address selects one DDR controller but the post-translation
      address exists in a different DDR controller when using certain DDR
      controller interleaving modes. The device may fail to boot under these
      circumstances. Note that a DDR MSE error will not be detected since DDR
      controller bounds registers are programmed to be the same when configured
      for DDR controller interleaving.
      
      Signed-off-by: default avatarYork Sun <yorksun@freescale.com>
      Signed-off-by: default avatarAndy Fleming <afleming@freescale.com>
      eb539412
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      powerpc/mpc85xx: software workaround for DDR erratum A-004468
      York Sun authored
      
      Boot space translation utilizes the pre-translation address to select
      the DDR controller target. However, the post-translation address will be
      presented to the selected DDR controller. It is possible that the pre-
      translation address selects one DDR controller but the post-translation
      address exists in a different DDR controller when using certain DDR
      controller interleaving modes. The device may fail to boot under these
      circumstances. Note that a DDR MSE error will not be detected since DDR
      controller bounds registers are programmed to be the same when configured
      for DDR controller interleaving.
      
      Signed-off-by: default avatarYork Sun <yorksun@freescale.com>
      Signed-off-by: default avatarAndy Fleming <afleming@freescale.com>