add support for the Cavium Octeon SoC, tested on a Mototech evaluation board

SVN-Revision: 15640

1 files changed, 56 insertions, 0 deletions

diff --git a/target/linux/cavium-octeon/patches/009-more_chip_specific_feature_tests.patch b/target/linux/cavium-octeon/patches/009-more_chip_specific_feature_tests.patch
new file mode 100644
index 0000000..f4a06f2
--- /dev/null
+++ b/target/linux/cavium-octeon/patches/009-more_chip_specific_feature_tests.patch
@@ -0,0 +1,56 @@
+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>
+---
+ arch/mips/include/asm/octeon/octeon-feature.h |   27 +++++++++++++++++++++++++
+ 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 04fac68..ef24a7b 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;
+ }
+-- 
+1.6.0.6
+