dc4ee6ca91
make use of it where possible. This primarily brings in support for newer hardware, and FreeBSD is not yet able to support the abundance of IRQs on new hardware and many features in the Ethernet driver. Because of the changes to IRQs in the Simple Executive, we have to maintain our own list of Octeon IRQs now, which probably can be pared-down and be specific to the CIU interrupt unit soon, and when other interrupt mechanisms are added they can maintain their own definitions. Remove unmasking of interrupts from within the UART device now that the function used is no longer present in the Simple Executive. The unmasking seems to have been gratuitous as this is more properly handled by the buses above the UART device, and seems to work on that basis.
147 lines
4.4 KiB
C
147 lines
4.4 KiB
C
/***********************license start***************
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* Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights
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* reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of Cavium Inc. nor the names of
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* its contributors may be used to endorse or promote products
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* derived from this software without specific prior written
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* permission.
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* This Software, including technical data, may be subject to U.S. export control
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* laws, including the U.S. Export Administration Act and its associated
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* regulations, and may be subject to export or import regulations in other
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* countries.
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
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* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
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* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
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* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
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* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
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* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
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* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
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* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
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* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
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* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
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***********************license end**************************************/
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/**
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* @file
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*
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* Functions for LOOP initialization, configuration,
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* and monitoring.
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*
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* <hr>$Revision: 70030 $<hr>
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*/
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#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
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#include <asm/octeon/cvmx.h>
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#include <asm/octeon/cvmx-config.h>
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#ifdef CVMX_ENABLE_PKO_FUNCTIONS
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#include <asm/octeon/cvmx-helper.h>
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#endif
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#include <asm/octeon/cvmx-pip-defs.h>
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#else
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#if !defined(__FreeBSD__) || !defined(_KERNEL)
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#include "executive-config.h"
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#include "cvmx-config.h"
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#ifdef CVMX_ENABLE_PKO_FUNCTIONS
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#include "cvmx.h"
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#include "cvmx-helper.h"
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#endif
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#else
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#include "cvmx.h"
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#include "cvmx-helper.h"
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#endif
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#endif
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#ifdef CVMX_ENABLE_PKO_FUNCTIONS
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int __cvmx_helper_loop_enumerate(int interface)
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{
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return (OCTEON_IS_MODEL(OCTEON_CN68XX) ? 8 : 4);
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}
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/**
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* @INTERNAL
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* Probe a LOOP interface and determine the number of ports
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* connected to it. The LOOP interface should still be down
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* after this call.
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*
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* @param interface 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_loop_probe(int interface)
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{
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return __cvmx_helper_loop_enumerate(interface);
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}
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/**
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* @INTERNAL
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* Bringup and enable a LOOP 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.
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*
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* @param interface 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_loop_enable(int interface)
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{
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cvmx_pip_prt_cfgx_t port_cfg;
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int num_ports, index;
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unsigned long offset;
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num_ports = __cvmx_helper_get_num_ipd_ports(interface);
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/*
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* We need to disable length checking so packet < 64 bytes and jumbo
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* frames don't get errors
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*/
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for (index = 0; index < num_ports; index++) {
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offset = ((octeon_has_feature(OCTEON_FEATURE_PKND)) ?
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cvmx_helper_get_pknd(interface, index) :
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cvmx_helper_get_ipd_port(interface, index));
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port_cfg.u64 = cvmx_read_csr(CVMX_PIP_PRT_CFGX(offset));
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port_cfg.s.maxerr_en = 0;
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port_cfg.s.minerr_en = 0;
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cvmx_write_csr(CVMX_PIP_PRT_CFGX(offset), port_cfg.u64);
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}
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/*
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* Disable FCS stripping for loopback ports
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*/
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if (!octeon_has_feature(OCTEON_FEATURE_PKND)) {
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cvmx_ipd_sub_port_fcs_t ipd_sub_port_fcs;
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ipd_sub_port_fcs.u64 = cvmx_read_csr(CVMX_IPD_SUB_PORT_FCS);
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ipd_sub_port_fcs.s.port_bit2 = 0;
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cvmx_write_csr(CVMX_IPD_SUB_PORT_FCS, ipd_sub_port_fcs.u64);
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}
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return 0;
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}
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#endif /* CVMX_ENABLE_PKO_FUNCTIONS */
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