^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /***********************license start***************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * Author: Cavium Networks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Contact: support@caviumnetworks.com
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * This file is part of the OCTEON SDK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (c) 2003-2008 Cavium Networks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * This file is free software; you can redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * it under the terms of the GNU General Public License, Version 2, as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * published by the Free Software Foundation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * This file is distributed in the hope that it will be useful, but
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * NONINFRINGEMENT. See the GNU General Public License for more
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * You should have received a copy of the GNU General Public License
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * along with this file; if not, write to the Free Software
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * or visit http://www.gnu.org/licenses/.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * This file may also be available under a different license from Cavium.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * Contact Cavium Networks for more information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) ***********************license end**************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * Functions for LOOP initialization, configuration,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * and monitoring.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <asm/octeon/octeon.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include <asm/octeon/cvmx-config.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #include <asm/octeon/cvmx-helper.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #include <asm/octeon/cvmx-pip-defs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * Probe a LOOP interface and determine the number of ports
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) * connected to it. The LOOP interface should still be down
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) * after this call.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) * @interface: Interface to probe
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) * Returns Number of ports on the interface. Zero to disable.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) int __cvmx_helper_loop_probe(int interface)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) union cvmx_ipd_sub_port_fcs ipd_sub_port_fcs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) int num_ports = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) int port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) /* We need to disable length checking so packet < 64 bytes and jumbo
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) frames don't get errors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) for (port = 0; port < num_ports; port++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) union cvmx_pip_prt_cfgx port_cfg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) int ipd_port = cvmx_helper_get_ipd_port(interface, port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) port_cfg.u64 = cvmx_read_csr(CVMX_PIP_PRT_CFGX(ipd_port));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) port_cfg.s.maxerr_en = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) port_cfg.s.minerr_en = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) cvmx_write_csr(CVMX_PIP_PRT_CFGX(ipd_port), port_cfg.u64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) /* Disable FCS stripping for loopback ports */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) ipd_sub_port_fcs.u64 = cvmx_read_csr(CVMX_IPD_SUB_PORT_FCS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) ipd_sub_port_fcs.s.port_bit2 = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) cvmx_write_csr(CVMX_IPD_SUB_PORT_FCS, ipd_sub_port_fcs.u64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) return num_ports;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) * Bringup and enable a LOOP interface. After this call packet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) * I/O should be fully functional. This is called with IPD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) * enabled but PKO disabled.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) * @interface: Interface to bring up
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) * Returns Zero on success, negative on failure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) int __cvmx_helper_loop_enable(int interface)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) /* Do nothing. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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