MIPS: Cavium-Octeon: Add more chip specific feature tests.

The octeon-ethernet driver needs to check for additional chip specific
features, we add them to the octeon_has_feature() framework.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 27 insertions, 0 deletions

diff --git a/arch/mips/include/asm/octeon/octeon-feature.h b/arch/mips/include/asm/octeon/octeon-feature.h
index 04fac684069c..ef24a7b4ea57 100644
--- a/arch/mips/include/asm/octeon/octeon-feature.h
+++ b/arch/mips/include/asm/octeon/octeon-feature.h
@@ -57,6 +57,13 @@ enum octeon_feature {
         OCTEON_FEATURE_RAID,
         /* Octeon has a builtin USB */
         OCTEON_FEATURE_USB,
+        /* Octeon IPD can run without using work queue entries */
+        OCTEON_FEATURE_NO_WPTR,
+        /* Octeon has DFA state machines */
+        OCTEON_FEATURE_DFA,
+        /* Octeon MDIO block supports clause 45 transactions for 10
+         * Gig support */
+        OCTEON_FEATURE_MDIO_CLAUSE_45,
 };
 
 static inline int cvmx_fuse_read(int fuse);
@@ -112,6 +119,26 @@ static inline int octeon_has_feature(enum octeon_feature feature)
         case OCTEON_FEATURE_USB:
                 return !(OCTEON_IS_MODEL(OCTEON_CN38XX)
                          || OCTEON_IS_MODEL(OCTEON_CN58XX));
+        case OCTEON_FEATURE_NO_WPTR:
+                return (OCTEON_IS_MODEL(OCTEON_CN56XX)
+                         || OCTEON_IS_MODEL(OCTEON_CN52XX))
+                        && !OCTEON_IS_MODEL(OCTEON_CN56XX_PASS1_X)
+                        && !OCTEON_IS_MODEL(OCTEON_CN52XX_PASS1_X);
+        case OCTEON_FEATURE_DFA:
+                if (!OCTEON_IS_MODEL(OCTEON_CN38XX)
+                    && !OCTEON_IS_MODEL(OCTEON_CN31XX)
+                    && !OCTEON_IS_MODEL(OCTEON_CN58XX))
+                        return 0;
+                else if (OCTEON_IS_MODEL(OCTEON_CN3020))
+                        return 0;
+                else if (OCTEON_IS_MODEL(OCTEON_CN38XX_PASS1))
+                        return 1;
+                else
+                        return !cvmx_fuse_read(120);
+        case OCTEON_FEATURE_MDIO_CLAUSE_45:
+                return !(OCTEON_IS_MODEL(OCTEON_CN3XXX)
+                         || OCTEON_IS_MODEL(OCTEON_CN58XX)
+                         || OCTEON_IS_MODEL(OCTEON_CN50XX));
         }
         return 0;
 }