target/linux/cavium-octeon/patches/009-more_chip_specific_feature_tests.patch

   1 The octeon-ethernet driver needs to check for additional chip specific
   2 features, we add them to the octeon_has_feature() framework.
   3
   4 Signed-off-by: David Daney <ddaney@caviumnetworks.com>
   5 ---
   6  arch/mips/include/asm/octeon/octeon-feature.h |   27 +++++++++++++++++++++++++
   7  1 files changed, 27 insertions(+), 0 deletions(-)
   8
   9 --- a/arch/mips/include/asm/octeon/octeon-feature.h
  10 +++ b/arch/mips/include/asm/octeon/octeon-feature.h
  11 @@ -57,6 +57,13 @@ enum octeon_feature {
  12         OCTEON_FEATURE_RAID,
  13         /* Octeon has a builtin USB */
  14         OCTEON_FEATURE_USB,
  15 +       /* Octeon IPD can run without using work queue entries */
  16 +       OCTEON_FEATURE_NO_WPTR,
  17 +       /* Octeon has DFA state machines */
  18 +       OCTEON_FEATURE_DFA,
  19 +       /* Octeon MDIO block supports clause 45 transactions for 10
  20 +        * Gig support */
  21 +       OCTEON_FEATURE_MDIO_CLAUSE_45,
  22  };
  23
  24  static inline int cvmx_fuse_read(int fuse);
  25 @@ -112,6 +119,26 @@ static inline int octeon_has_feature(enu
  26         case OCTEON_FEATURE_USB:
  27                 return !(OCTEON_IS_MODEL(OCTEON_CN38XX)
  28                          || OCTEON_IS_MODEL(OCTEON_CN58XX));
  29 +       case OCTEON_FEATURE_NO_WPTR:
  30 +               return (OCTEON_IS_MODEL(OCTEON_CN56XX)
  31 +                        || OCTEON_IS_MODEL(OCTEON_CN52XX))
  32 +                       && !OCTEON_IS_MODEL(OCTEON_CN56XX_PASS1_X)
  33 +                       && !OCTEON_IS_MODEL(OCTEON_CN52XX_PASS1_X);
  34 +       case OCTEON_FEATURE_DFA:
  35 +               if (!OCTEON_IS_MODEL(OCTEON_CN38XX)
  36 +                   && !OCTEON_IS_MODEL(OCTEON_CN31XX)
  37 +                   && !OCTEON_IS_MODEL(OCTEON_CN58XX))
  38 +                       return 0;
  39 +               else if (OCTEON_IS_MODEL(OCTEON_CN3020))
  40 +                       return 0;
  41 +               else if (OCTEON_IS_MODEL(OCTEON_CN38XX_PASS1))
  42 +                       return 1;
  43 +               else
  44 +                       return !cvmx_fuse_read(120);
  45 +       case OCTEON_FEATURE_MDIO_CLAUSE_45:
  46 +               return !(OCTEON_IS_MODEL(OCTEON_CN3XXX)
  47 +                        || OCTEON_IS_MODEL(OCTEON_CN58XX)
  48 +                        || OCTEON_IS_MODEL(OCTEON_CN50XX));
  49         }
  50         return 0;
  51  }