projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| e7bc6eab AW |
1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* | |
| 3 | * Copyright (C) 2020 Marvell International Ltd. | |
| 4 | * | |
| 5 | * Functions for RGMII/GMII/MII initialization, configuration, | |
| 6 | * and monitoring. | |
| 7 | */ | |
| 8 | ||
| 9 | #ifndef __CVMX_HELPER_RGMII_H__ | |
| 10 | #define __CVMX_HELPER_RGMII_H__ | |
| 11 | ||
| 12 | /** | |
| 13 | * @INTERNAL | |
| 14 | * Probe RGMII ports and determine the number present | |
| 15 | * | |
| 16 | * @param xiface Interface to probe | |
| 17 | * | |
| 185f812c | 18 | * Return: Number of RGMII/GMII/MII ports (0-4). |
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19 | */ |
| 20 | int __cvmx_helper_rgmii_probe(int xiface); | |
| 21 | ||
| 22 | /** | |
| 23 | * Put an RGMII interface in loopback mode. Internal packets sent | |
| 24 | * out will be received back again on the same port. Externally | |
| 25 | * received packets will echo back out. | |
| 26 | * | |
| 27 | * @param port IPD port number to loop. | |
| 28 | */ | |
| 29 | void cvmx_helper_rgmii_internal_loopback(int port); | |
| 30 | ||
| 31 | /** | |
| 32 | * @INTERNAL | |
| 33 | * Configure all of the ASX, GMX, and PKO regsiters required | |
| 34 | * to get RGMII to function on the supplied interface. | |
| 35 | * | |
| 36 | * @param xiface PKO Interface to configure (0 or 1) | |
| 37 | * | |
| 185f812c | 38 | * Return: Zero on success |
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39 | */ |
| 40 | int __cvmx_helper_rgmii_enable(int xiface); | |
| 41 | ||
| 42 | /** | |
| 43 | * @INTERNAL | |
| 44 | * Return the link state of an IPD/PKO port as returned by | |
| 45 | * auto negotiation. The result of this function may not match | |
| 46 | * Octeon's link config if auto negotiation has changed since | |
| 47 | * the last call to cvmx_helper_link_set(). | |
| 48 | * | |
| 49 | * @param ipd_port IPD/PKO port to query | |
| 50 | * | |
| 185f812c | 51 | * Return: Link state |
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52 | */ |
| 53 | cvmx_helper_link_info_t __cvmx_helper_gmii_link_get(int ipd_port); | |
| 54 | ||
| 55 | /** | |
| 56 | * @INTERNAL | |
| 57 | * Return the link state of an IPD/PKO port as returned by | |
| 58 | * auto negotiation. The result of this function may not match | |
| 59 | * Octeon's link config if auto negotiation has changed since | |
| 60 | * the last call to cvmx_helper_link_set(). | |
| 61 | * | |
| 62 | * @param ipd_port IPD/PKO port to query | |
| 63 | * | |
| 185f812c | 64 | * Return: Link state |
| e7bc6eab AW |
65 | */ |
| 66 | cvmx_helper_link_info_t __cvmx_helper_rgmii_link_get(int ipd_port); | |
| 67 | ||
| 68 | /** | |
| 69 | * @INTERNAL | |
| 70 | * Configure an IPD/PKO port for the specified link state. This | |
| 71 | * function does not influence auto negotiation at the PHY level. | |
| 72 | * The passed link state must always match the link state returned | |
| 73 | * by cvmx_helper_link_get(). It is normally best to use | |
| 74 | * cvmx_helper_link_autoconf() instead. | |
| 75 | * | |
| 76 | * @param ipd_port IPD/PKO port to configure | |
| 77 | * @param link_info The new link state | |
| 78 | * | |
| 185f812c | 79 | * Return: Zero on success, negative on failure |
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80 | */ |
| 81 | int __cvmx_helper_rgmii_link_set(int ipd_port, cvmx_helper_link_info_t link_info); | |
| 82 | ||
| 83 | /** | |
| 84 | * @INTERNAL | |
| 85 | * Configure a port for internal and/or external loopback. Internal loopback | |
| 86 | * causes packets sent by the port to be received by Octeon. External loopback | |
| 87 | * causes packets received from the wire to sent out again. | |
| 88 | * | |
| 89 | * @param ipd_port IPD/PKO port to loopback. | |
| 90 | * @param enable_internal | |
| 91 | * Non zero if you want internal loopback | |
| 92 | * @param enable_external | |
| 93 | * Non zero if you want external loopback | |
| 94 | * | |
| 185f812c | 95 | * Return: Zero on success, negative on failure. |
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96 | */ |
| 97 | int __cvmx_helper_rgmii_configure_loopback(int ipd_port, int enable_internal, int enable_external); | |
| 98 | ||
| 99 | #endif |