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Commit f1f1f590 authored by David Daney's avatar David Daney Committed by Ralf Baechle
Browse files

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: default avatarDavid Daney <ddaney@caviumnetworks.com>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 2b1b62e8

arch/mips/include/asm/octeon/octeon-feature.h

+27 −0
Original line number Diff line number Diff line
@@ -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;

}