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https://github.com/brain-hackers/u-boot-brain
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e7bc6eabd1
Import misc cvmx-helper header files from 2013 U-Boot. They will be used by the later added drivers to support PCIe and networking on the MIPS Octeon II / III platforms. Signed-off-by: Aaron Williams <awilliams@marvell.com> Signed-off-by: Stefan Roese <sr@denx.de>
336 lines
11 KiB
C
336 lines
11 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2020 Marvell International Ltd.
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*
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* Functions to configure the BGX MAC.
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*/
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#ifndef __CVMX_HELPER_BGX_H__
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#define __CVMX_HELPER_BGX_H__
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#define CVMX_BGX_RX_FIFO_SIZE (64 * 1024)
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#define CVMX_BGX_TX_FIFO_SIZE (32 * 1024)
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int __cvmx_helper_bgx_enumerate(int xiface);
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/**
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* @INTERNAL
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* Disable the BGX port
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*
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* @param xipd_port IPD port of the BGX interface to disable
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*/
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void cvmx_helper_bgx_disable(int xipd_port);
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/**
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* @INTERNAL
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* Probe a SGMII interface and determine the number of ports
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* connected to it. The SGMII/XAUI interface should still be down after
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* this call. This is used by interfaces using the bgx mac.
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*
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* @param xiface Interface to probe
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*
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* @return Number of ports on the interface. Zero to disable.
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*/
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int __cvmx_helper_bgx_probe(int xiface);
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/**
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* @INTERNAL
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* Bringup and enable a SGMII interface. After this call packet
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* I/O should be fully functional. This is called with IPD
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* enabled but PKO disabled. This is used by interfaces using the
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* bgx mac.
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*
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* @param xiface Interface to bring up
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*
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* @return Zero on success, negative on failure
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*/
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int __cvmx_helper_bgx_sgmii_enable(int xiface);
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/**
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* @INTERNAL
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* Return the link state of an IPD/PKO port as returned by
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* auto negotiation. The result of this function may not match
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* Octeon's link config if auto negotiation has changed since
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* the last call to cvmx_helper_link_set(). This is used by
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* interfaces using the bgx mac.
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*
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* @param xipd_port IPD/PKO port to query
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*
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* @return Link state
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*/
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cvmx_helper_link_info_t __cvmx_helper_bgx_sgmii_link_get(int xipd_port);
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/**
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* @INTERNAL
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* Configure an IPD/PKO port for the specified link state. This
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* function does not influence auto negotiation at the PHY level.
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* The passed link state must always match the link state returned
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* by cvmx_helper_link_get(). It is normally best to use
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* cvmx_helper_link_autoconf() instead. This is used by interfaces
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* using the bgx mac.
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*
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* @param xipd_port IPD/PKO port to configure
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* @param link_info The new link state
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*
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* @return Zero on success, negative on failure
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*/
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int __cvmx_helper_bgx_sgmii_link_set(int xipd_port, cvmx_helper_link_info_t link_info);
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/**
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* @INTERNAL
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* Configure a port for internal and/or external loopback. Internal loopback
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* causes packets sent by the port to be received by Octeon. External loopback
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* causes packets received from the wire to sent out again. This is used by
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* interfaces using the bgx mac.
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*
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* @param xipd_port IPD/PKO port to loopback.
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* @param enable_internal
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* Non zero if you want internal loopback
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* @param enable_external
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* Non zero if you want external loopback
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*
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* @return Zero on success, negative on failure.
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*/
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int __cvmx_helper_bgx_sgmii_configure_loopback(int xipd_port, int enable_internal,
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int enable_external);
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/**
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* @INTERNAL
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* Bringup and enable a XAUI interface. After this call packet
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* I/O should be fully functional. This is called with IPD
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* enabled but PKO disabled. This is used by interfaces using the
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* bgx mac.
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*
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* @param xiface Interface to bring up
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*
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* @return Zero on success, negative on failure
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*/
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int __cvmx_helper_bgx_xaui_enable(int xiface);
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/**
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* @INTERNAL
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* Return the link state of an IPD/PKO port as returned by
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* auto negotiation. The result of this function may not match
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* Octeon's link config if auto negotiation has changed since
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* the last call to cvmx_helper_link_set(). This is used by
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* interfaces using the bgx mac.
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*
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* @param xipd_port IPD/PKO port to query
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*
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* @return Link state
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*/
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cvmx_helper_link_info_t __cvmx_helper_bgx_xaui_link_get(int xipd_port);
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/**
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* @INTERNAL
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* Configure an IPD/PKO port for the specified link state. This
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* function does not influence auto negotiation at the PHY level.
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* The passed link state must always match the link state returned
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* by cvmx_helper_link_get(). It is normally best to use
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* cvmx_helper_link_autoconf() instead. This is used by interfaces
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* using the bgx mac.
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*
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* @param xipd_port IPD/PKO port to configure
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* @param link_info The new link state
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*
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* @return Zero on success, negative on failure
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*/
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int __cvmx_helper_bgx_xaui_link_set(int xipd_port, cvmx_helper_link_info_t link_info);
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/**
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* @INTERNAL
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* Configure a port for internal and/or external loopback. Internal loopback
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* causes packets sent by the port to be received by Octeon. External loopback
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* causes packets received from the wire to sent out again. This is used by
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* interfaces using the bgx mac.
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*
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* @param xipd_port IPD/PKO port to loopback.
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* @param enable_internal
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* Non zero if you want internal loopback
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* @param enable_external
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* Non zero if you want external loopback
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*
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* @return Zero on success, negative on failure.
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*/
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int __cvmx_helper_bgx_xaui_configure_loopback(int xipd_port, int enable_internal,
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int enable_external);
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int __cvmx_helper_bgx_mixed_enable(int xiface);
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cvmx_helper_link_info_t __cvmx_helper_bgx_mixed_link_get(int xipd_port);
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int __cvmx_helper_bgx_mixed_link_set(int xipd_port, cvmx_helper_link_info_t link_info);
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int __cvmx_helper_bgx_mixed_configure_loopback(int xipd_port, int enable_internal,
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int enable_external);
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cvmx_helper_interface_mode_t cvmx_helper_bgx_get_mode(int xiface, int index);
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/**
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* @INTERNAL
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* Configure Priority-Based Flow Control (a.k.a. PFC/CBFC)
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* on a specific BGX interface/port.
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*/
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void __cvmx_helper_bgx_xaui_config_pfc(unsigned int node, unsigned int interface, unsigned int port,
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bool pfc_enable);
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/**
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* This function control how the hardware handles incoming PAUSE
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* packets. The most common modes of operation:
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* ctl_bck = 1, ctl_drp = 1: hardware handles everything
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* ctl_bck = 0, ctl_drp = 0: software sees all PAUSE frames
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* ctl_bck = 0, ctl_drp = 1: all PAUSE frames are completely ignored
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* @param node node number.
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* @param interface interface number
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* @param port port number
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* @param ctl_bck 1: Forward PAUSE information to TX block
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* @param ctl_drp 1: Drop control PAUSE frames.
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*/
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void cvmx_helper_bgx_rx_pause_ctl(unsigned int node, unsigned int interface, unsigned int port,
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unsigned int ctl_bck, unsigned int ctl_drp);
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/**
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* This function configures the receive action taken for multicast, broadcast
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* and dmac filter match packets.
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* @param node node number.
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* @param interface interface number
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* @param port port number
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* @param cam_accept 0: reject packets on dmac filter match
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* 1: accept packet on dmac filter match
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* @param mcast_mode 0x0 = Force reject all multicast packets
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* 0x1 = Force accept all multicast packets
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* 0x2 = Use the address filter CAM
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* @param bcast_accept 0 = Reject all broadcast packets
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* 1 = Accept all broadcast packets
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*/
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void cvmx_helper_bgx_rx_adr_ctl(unsigned int node, unsigned int interface, unsigned int port,
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unsigned int cam_accept, unsigned int mcast_mode,
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unsigned int bcast_accept);
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/**
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* Function to control the generation of FCS, padding by the BGX
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*
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*/
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void cvmx_helper_bgx_tx_options(unsigned int node, unsigned int interface, unsigned int index,
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bool fcs_enable, bool pad_enable);
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/**
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* Set mac for the ipd_port
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*
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* @param xipd_port ipd_port to set the mac
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* @param bcst If set, accept all broadcast packets
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* @param mcst Multicast mode
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* 0 = Force reject all multicast packets
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* 1 = Force accept all multicast packets
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* 2 = use the address filter CAM.
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* @param mac mac address for the ipd_port
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*/
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void cvmx_helper_bgx_set_mac(int xipd_port, int bcst, int mcst, u64 mac);
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int __cvmx_helper_bgx_port_init(int xipd_port, int phy_pres);
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void cvmx_helper_bgx_set_jabber(int xiface, unsigned int index, unsigned int size);
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int cvmx_helper_bgx_shutdown_port(int xiface, int index);
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int cvmx_bgx_set_backpressure_override(int xiface, unsigned int port_mask);
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int __cvmx_helper_bgx_fifo_size(int xiface, unsigned int lmac);
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/**
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* Returns if an interface is RGMII or not
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*
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* @param xiface xinterface to check
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* @param index port index (must be 0 for rgmii)
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*
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* @return true if RGMII, false otherwise
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*/
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static inline bool cvmx_helper_bgx_is_rgmii(int xiface, int index)
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{
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union cvmx_bgxx_cmrx_config cmr_config;
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if (!OCTEON_IS_MODEL(OCTEON_CN73XX) || index != 0)
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return false;
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cmr_config.u64 = csr_rd(CVMX_BGXX_CMRX_CONFIG(index, xiface));
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return cmr_config.s.lmac_type == 5;
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}
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/**
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* Probes the BGX Super Path (SMU/SPU) mode
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*
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* @param xiface global interface number
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* @param index interface index
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*
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* @return true, if Super-MAC/PCS mode, false -- otherwise
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*/
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bool cvmx_helper_bgx_is_smu(int xiface, int index);
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/**
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* @INTERNAL
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* Configure parameters of PAUSE packet.
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*
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* @param xipd_port Global IPD port (node + IPD port).
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* @param smac Source MAC address.
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* @param dmac Destination MAC address.
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* @param type PAUSE packet type.
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* @param time Pause time for PAUSE packets (number of 512 bit-times).
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* @param interval Interval between PAUSE packets (number of 512 bit-times).
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* @return Zero on success, negative on failure.
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*/
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int cvmx_bgx_set_pause_pkt_param(int xipd_port, u64 smac, u64 dmac, unsigned int type,
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unsigned int time, unsigned int interval);
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/**
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* @INTERNAL
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* Setup the BGX flow-control mode.
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*
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* @param xipd_port Global IPD port (node + IPD port).
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* @param type Flow-control type/protocol.
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* @param mode Flow-control mode.
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* @return Zero on success, negative on failure.
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*/
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int cvmx_bgx_set_flowctl_mode(int xipd_port, cvmx_qos_proto_t qos, cvmx_qos_pkt_mode_t mode);
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/**
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* Enables or disables autonegotiation for an interface.
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*
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* @param xiface interface to set autonegotiation
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* @param index port index
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* @param enable true to enable autonegotiation, false to disable it
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*
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* @return 0 for success, -1 on error.
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*/
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int cvmx_helper_set_autonegotiation(int xiface, int index, bool enable);
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/**
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* Enables or disables forward error correction
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*
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* @param xiface interface
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* @param index port index
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* @param enable set to true to enable FEC, false to disable
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*
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* @return 0 for success, -1 on error
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*
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* @NOTE: If autonegotiation is enabled then autonegotiation will be
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* restarted for negotiating FEC.
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*/
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int cvmx_helper_set_fec(int xiface, int index, bool enable);
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#ifdef CVMX_DUMP_BGX
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/**
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* Dump BGX configuration for node 0
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*/
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int cvmx_dump_bgx_config(unsigned int bgx);
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/**
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* Dump BGX status for node 0
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*/
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int cvmx_dump_bgx_status(unsigned int bgx);
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/**
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* Dump BGX configuration
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*/
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int cvmx_dump_bgx_config_node(unsigned int node, unsigned int bgx);
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/**
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* Dump BGX status
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*/
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int cvmx_dump_bgx_status_node(unsigned int node, unsigned int bgx);
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#endif
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#endif
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