--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2020 Marvell International Ltd.
+ */
+
+#ifndef __OCTEON_FEATURE_H__
+#define __OCTEON_FEATURE_H__
+
+/*
+ * Octeon models are declared after the macros in octeon-model.h with the
+ * suffix _FEATURE. The individual features are declared with the
+ * _FEATURE_ infix.
+ */
+enum octeon_feature {
+ /*
+ * Checks on the critical path are moved to the top (8 positions)
+ * so that the compiler generates one less insn than for the rest
+ * of the checks.
+ */
+ OCTEON_FEATURE_PKND, /* CN68XX uses port kinds for packet interface */
+ /* CN68XX has different fields in word0 - word2 */
+ OCTEON_FEATURE_CN68XX_WQE,
+
+ /*
+ * Features
+ */
+ /*
+ * Octeon models in the CN5XXX family and higher support atomic
+ * add instructions to memory (saa/saad)
+ */
+ OCTEON_FEATURE_SAAD,
+ /* Does this Octeon support the ZIP offload engine? */
+ OCTEON_FEATURE_ZIP,
+ /* Does this Octeon support crypto acceleration using COP2? */
+ OCTEON_FEATURE_CRYPTO,
+ /* Can crypto be enabled by calling cvmx_crypto_dormant_enable()? */
+ OCTEON_FEATURE_DORM_CRYPTO,
+ OCTEON_FEATURE_PCIE, /* Does this Octeon support PCI express? */
+ OCTEON_FEATURE_SRIO, /* Does this Octeon support SRIO */
+ OCTEON_FEATURE_ILK, /* Does this Octeon support Interlaken */
+ /*
+ * Some Octeon models support internal memory for storing
+ * cryptographic keys
+ */
+ OCTEON_FEATURE_KEY_MEMORY,
+ /* Octeon has a LED controller for banks of external LEDs */
+ OCTEON_FEATURE_LED_CONTROLLER,
+ OCTEON_FEATURE_TRA, /* Octeon has a trace buffer */
+ OCTEON_FEATURE_MGMT_PORT, /* Octeon has a management port */
+ OCTEON_FEATURE_RAID, /* Octeon has a raid unit */
+ OCTEON_FEATURE_USB, /* Octeon has a builtin USB */
+ /* Octeon IPD can run without using work queue entries */
+ OCTEON_FEATURE_NO_WPTR,
+ OCTEON_FEATURE_DFA, /* Octeon has DFA state machines */
+ /*
+ * Octeon MDIO block supports clause 45 transactions for
+ * 10 Gig support
+ */
+ OCTEON_FEATURE_MDIO_CLAUSE_45,
+ /*
+ * CN52XX and CN56XX used a block named NPEI for PCIe access.
+ * Newer chips replaced this with SLI+DPI
+ */
+ OCTEON_FEATURE_NPEI,
+ OCTEON_FEATURE_HFA, /* Octeon has DFA/HFA */
+ OCTEON_FEATURE_DFM, /* Octeon has DFM */
+ OCTEON_FEATURE_CIU2, /* Octeon has CIU2 */
+ /* Octeon has DMA Instruction Completion Interrupt mode */
+ OCTEON_FEATURE_DICI_MODE,
+ /* Octeon has Bit Select Extractor schedulor */
+ OCTEON_FEATURE_BIT_EXTRACTOR,
+ OCTEON_FEATURE_NAND, /* Octeon has NAND */
+ OCTEON_FEATURE_MMC, /* Octeon has built-in MMC support */
+ OCTEON_FEATURE_ROM, /* Octeon has built-in ROM support */
+ OCTEON_FEATURE_AUTHENTIK, /* Octeon has Authentik ROM support */
+ OCTEON_FEATURE_MULTICAST_TIMER, /* Octeon has multi_cast timer */
+ OCTEON_FEATURE_MULTINODE, /* Octeon has node support */
+ OCTEON_FEATURE_CIU3, /* Octeon has CIU3 */
+ OCTEON_FEATURE_FPA3, /* Octeon has FPA first seen on 78XX */
+ /* CN78XX has different fields in word0 - word2 */
+ OCTEON_FEATURE_CN78XX_WQE,
+ OCTEON_FEATURE_PKO3, /* Octeon has enhanced PKO block */
+ OCTEON_FEATURE_SPI, /* Octeon supports SPI interfaces */
+ OCTEON_FEATURE_ZIP3, /* Octeon has zip first seen on 78XX */
+ OCTEON_FEATURE_BCH, /* Octeon supports BCH ECC */
+ OCTEON_FEATURE_PKI, /* Octeon has PKI block */
+ OCTEON_FEATURE_OCLA, /* Octeon has OCLA */
+ OCTEON_FEATURE_FAU, /* Octeon has FAU */
+ OCTEON_FEATURE_BGX, /* Octeon has BGX */
+ OCTEON_FEATURE_BGX_MIX, /* On of the BGX is used for MIX */
+ OCTEON_FEATURE_HNA, /* Octeon has HNA */
+ OCTEON_FEATURE_BGX_XCV, /* Octeon has BGX XCV RGMII support */
+ OCTEON_FEATURE_TSO, /* Octeon has tcp segmentation offload */
+ OCTEON_FEATURE_TDM, /* Octeon has PCM/TDM support */
+ OCTEON_FEATURE_PTP, /* Octeon has PTP support */
+ OCTEON_MAX_FEATURE
+};
+
+static inline int octeon_has_feature_OCTEON_FEATURE_SAAD(void)
+{
+ return true;
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_ZIP(void)
+{
+ if (OCTEON_IS_MODEL(OCTEON_CNF71XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN70XX) || OCTEON_IS_MODEL(OCTEON_CNF75XX))
+ return 0;
+ else
+ return !cvmx_fuse_read(121);
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_ZIP3(void)
+{
+ return (OCTEON_IS_MODEL(OCTEON_CN78XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN73XX));
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_BCH(void)
+{
+ return (OCTEON_IS_MODEL(OCTEON_CN70XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF75XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN73XX));
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_CRYPTO(void)
+{
+ /* OCTEON II and later */
+ u64 val;
+
+ val = csr_rd(CVMX_MIO_FUS_DAT2);
+ if (val & MIO_FUS_DAT2_NOCRYPTO || val & MIO_FUS_DAT2_NOMUL)
+ return 0;
+ else if (!(val & MIO_FUS_DAT2_DORM_CRYPTO))
+ return 1;
+
+ val = csr_rd(CVMX_RNM_CTL_STATUS);
+ return val & RNM_CTL_STATUS_EER_VAL;
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_DORM_CRYPTO(void)
+{
+ /* OCTEON II and later */
+ u64 val;
+
+ val = csr_rd(CVMX_MIO_FUS_DAT2);
+ return !(val & MIO_FUS_DAT2_NOCRYPTO) && !(val & MIO_FUS_DAT2_NOMUL) &&
+ (val & MIO_FUS_DAT2_DORM_CRYPTO);
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_PCIE(void)
+{
+ /* OCTEON II and later have PCIe */
+ return true;
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_SRIO(void)
+{
+ if (OCTEON_IS_MODEL(OCTEON_CNF75XX)) {
+ if (cvmx_fuse_read(1601) == 0)
+ return 0;
+ else
+ return 1;
+ } else {
+ return (OCTEON_IS_MODEL(OCTEON_CN63XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN66XX));
+ }
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_ILK(void)
+{
+ return (OCTEON_IS_MODEL(OCTEON_CN68XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN78XX));
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_KEY_MEMORY(void)
+{
+ /* OCTEON II or later */
+ return true;
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_LED_CONTROLLER(void)
+{
+ return false;
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_TRA(void)
+{
+ return !OCTEON_IS_OCTEON3();
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_MGMT_PORT(void)
+{
+ /* OCTEON II or later */
+ return true;
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_RAID(void)
+{
+ return !OCTEON_IS_MODEL(OCTEON_CNF75XX);
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_USB(void)
+{
+ return true;
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_NO_WPTR(void)
+{
+ return true;
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_DFA(void)
+{
+ return 0;
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_HFA(void)
+{
+ if (OCTEON_IS_MODEL(OCTEON_CNF75XX))
+ return 0;
+ else
+ return !cvmx_fuse_read(90);
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_HNA(void)
+{
+ if (OCTEON_IS_MODEL(OCTEON_CN78XX) || OCTEON_IS_MODEL(OCTEON_CN73XX))
+ return !cvmx_fuse_read(134);
+ else
+ return 0;
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_DFM(void)
+{
+ if (!(OCTEON_IS_MODEL(OCTEON_CN63XX) || OCTEON_IS_MODEL(OCTEON_CN66XX)))
+ return 0;
+ else
+ return !cvmx_fuse_read(90);
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_MDIO_CLAUSE_45(void)
+{
+ return true;
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_NPEI(void)
+{
+ return false;
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_PKND(void)
+{
+ return OCTEON_IS_MODEL(OCTEON_CN68XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF75XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN73XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN78XX);
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_CN68XX_WQE(void)
+{
+ return OCTEON_IS_MODEL(OCTEON_CN68XX);
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_CIU2(void)
+{
+ return OCTEON_IS_MODEL(OCTEON_CN68XX);
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_CIU3(void)
+{
+ return (OCTEON_IS_MODEL(OCTEON_CN78XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF75XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN73XX));
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_FPA3(void)
+{
+ return (OCTEON_IS_MODEL(OCTEON_CN78XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF75XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN73XX));
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_NAND(void)
+{
+ return (OCTEON_IS_MODEL(OCTEON_CN63XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN66XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN68XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN73XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF75XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN70XX));
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_DICI_MODE(void)
+{
+ return (OCTEON_IS_MODEL(OCTEON_CN68XX_PASS2_X) ||
+ OCTEON_IS_MODEL(OCTEON_CN61XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF71XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN70XX));
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_BIT_EXTRACTOR(void)
+{
+ return (OCTEON_IS_MODEL(OCTEON_CN68XX_PASS2_X) ||
+ OCTEON_IS_MODEL(OCTEON_CN61XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF71XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN70XX));
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_MMC(void)
+{
+ return (OCTEON_IS_MODEL(OCTEON_CN61XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF71XX) || OCTEON_IS_OCTEON3());
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_ROM(void)
+{
+ return OCTEON_IS_MODEL(OCTEON_CN66XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN61XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF71XX);
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_AUTHENTIK(void)
+{
+ if (OCTEON_IS_MODEL(OCTEON_CN66XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN61XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF71XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN70XX)) {
+ u64 val;
+
+ val = csr_rd(CVMX_MIO_FUS_DAT2);
+ return (val & MIO_FUS_DAT2_NOCRYPTO) &&
+ (val & MIO_FUS_DAT2_DORM_CRYPTO);
+ }
+
+ return 0;
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_MULTICAST_TIMER(void)
+{
+ return (OCTEON_IS_MODEL(OCTEON_CN66XX_PASS1_2) ||
+ OCTEON_IS_MODEL(OCTEON_CN61XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF71XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN70XX));
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_MULTINODE(void)
+{
+ return (!OCTEON_IS_MODEL(OCTEON_CN76XX) &&
+ OCTEON_IS_MODEL(OCTEON_CN78XX));
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_CN78XX_WQE(void)
+{
+ return (OCTEON_IS_MODEL(OCTEON_CN78XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF75XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN73XX));
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_SPI(void)
+{
+ return (OCTEON_IS_MODEL(OCTEON_CN66XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN61XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF71XX) || OCTEON_IS_OCTEON3());
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_PKI(void)
+{
+ return (OCTEON_IS_MODEL(OCTEON_CN78XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF75XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN73XX));
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_PKO3(void)
+{
+ return (OCTEON_IS_MODEL(OCTEON_CN78XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF75XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN73XX));
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_OCLA(void)
+{
+ return OCTEON_IS_OCTEON3();
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_FAU(void)
+{
+ return (!OCTEON_IS_MODEL(OCTEON_CN78XX) &&
+ !OCTEON_IS_MODEL(OCTEON_CNF75XX) &&
+ !OCTEON_IS_MODEL(OCTEON_CN73XX));
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_BGX(void)
+{
+ return (OCTEON_IS_MODEL(OCTEON_CN78XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF75XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN73XX));
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_BGX_MIX(void)
+{
+ return (OCTEON_IS_MODEL(OCTEON_CN78XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF75XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN73XX));
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_BGX_XCV(void)
+{
+ return OCTEON_IS_MODEL(OCTEON_CN73XX);
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_TSO(void)
+{
+ return (OCTEON_IS_MODEL(OCTEON_CN73XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF75XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN78XX_PASS2_X));
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_TDM(void)
+{
+ return OCTEON_IS_MODEL(OCTEON_CN61XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF71XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN70XX);
+}
+
+static inline int octeon_has_feature_OCTEON_FEATURE_PTP(void)
+{
+ return OCTEON_IS_MODEL(OCTEON_CN6XXX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF7XXX) ||
+ OCTEON_IS_MODEL(OCTEON_CN73XX) ||
+ OCTEON_IS_MODEL(OCTEON_CNF75XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN78XX_PASS2_X);
+}
+
+/*
+ * Answer ``Is the bit for feature set in the bitmap?''
+ * @param feature
+ * @return 1 when the feature is present and 0 otherwise, -1 in case of error.
+ */
+#define octeon_has_feature(feature_x) octeon_has_feature_##feature_x()
+
+#endif /* __OCTEON_FEATURE_H__ */
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