diff options
Diffstat (limited to 'drivers/staging/octeon/cvmx-helper-spi.c')
| -rw-r--r-- | drivers/staging/octeon/cvmx-helper-spi.c | 195 |
1 files changed, 0 insertions, 195 deletions
diff --git a/drivers/staging/octeon/cvmx-helper-spi.c b/drivers/staging/octeon/cvmx-helper-spi.c deleted file mode 100644 index 8ba6c832471e..000000000000 --- a/drivers/staging/octeon/cvmx-helper-spi.c +++ /dev/null @@ -1,195 +0,0 @@ -/***********************license start*************** - * Author: Cavium Networks - * - * Contact: support@caviumnetworks.com - * This file is part of the OCTEON SDK - * - * Copyright (c) 2003-2008 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. - * - * This file is distributed in the hope that it will be useful, but - * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or - * NONINFRINGEMENT. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License - * along with this file; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * or visit http://www.gnu.org/licenses/. - * - * This file may also be available under a different license from Cavium. - * Contact Cavium Networks for more information - ***********************license end**************************************/ - -void __cvmx_interrupt_gmxx_enable(int interface); -void __cvmx_interrupt_spxx_int_msk_enable(int index); -void __cvmx_interrupt_stxx_int_msk_enable(int index); - -/* - * Functions for SPI initialization, configuration, - * and monitoring. - */ -#include <asm/octeon/octeon.h> - -#include "cvmx-config.h" -#include "cvmx-spi.h" -#include "cvmx-helper.h" - -#include "cvmx-pip-defs.h" -#include "cvmx-pko-defs.h" - -/* - * CVMX_HELPER_SPI_TIMEOUT is used to determine how long the SPI - * initialization routines wait for SPI training. You can override the - * value using executive-config.h if necessary. - */ -#ifndef CVMX_HELPER_SPI_TIMEOUT -#define CVMX_HELPER_SPI_TIMEOUT 10 -#endif - -/** - * Probe a SPI interface and determine the number of ports - * connected to it. The SPI interface should still be down after - * this call. - * - * @interface: Interface to probe - * - * Returns Number of ports on the interface. Zero to disable. - */ -int __cvmx_helper_spi_probe(int interface) -{ - int num_ports = 0; - - if ((cvmx_sysinfo_get()->board_type != CVMX_BOARD_TYPE_SIM) && - cvmx_spi4000_is_present(interface)) { - num_ports = 10; - } else { - union cvmx_pko_reg_crc_enable enable; - num_ports = 16; - /* - * Unlike the SPI4000, most SPI devices don't - * automatically put on the L2 CRC. For everything - * except for the SPI4000 have PKO append the L2 CRC - * to the packet. - */ - enable.u64 = cvmx_read_csr(CVMX_PKO_REG_CRC_ENABLE); - enable.s.enable |= 0xffff << (interface * 16); - cvmx_write_csr(CVMX_PKO_REG_CRC_ENABLE, enable.u64); - } - __cvmx_helper_setup_gmx(interface, num_ports); - return num_ports; -} - -/** - * Bringup and enable a SPI interface. After this call packet I/O - * should be fully functional. This is called with IPD enabled but - * PKO disabled. - * - * @interface: Interface to bring up - * - * Returns Zero on success, negative on failure - */ -int __cvmx_helper_spi_enable(int interface) -{ - /* - * Normally the ethernet L2 CRC is checked and stripped in the - * GMX block. When you are using SPI, this isn' the case and - * IPD needs to check the L2 CRC. - */ - int num_ports = cvmx_helper_ports_on_interface(interface); - int ipd_port; - for (ipd_port = interface * 16; ipd_port < interface * 16 + num_ports; - ipd_port++) { - union cvmx_pip_prt_cfgx port_config; - port_config.u64 = cvmx_read_csr(CVMX_PIP_PRT_CFGX(ipd_port)); - port_config.s.crc_en = 1; - cvmx_write_csr(CVMX_PIP_PRT_CFGX(ipd_port), port_config.u64); - } - - if (cvmx_sysinfo_get()->board_type != CVMX_BOARD_TYPE_SIM) { - cvmx_spi_start_interface(interface, CVMX_SPI_MODE_DUPLEX, - CVMX_HELPER_SPI_TIMEOUT, num_ports); - if (cvmx_spi4000_is_present(interface)) - cvmx_spi4000_initialize(interface); - } - __cvmx_interrupt_spxx_int_msk_enable(interface); - __cvmx_interrupt_stxx_int_msk_enable(interface); - __cvmx_interrupt_gmxx_enable(interface); - return 0; -} - -/** - * Return the link state of an IPD/PKO port as returned by - * auto negotiation. The result of this function may not match - * Octeon's link config if auto negotiation has changed since - * the last call to cvmx_helper_link_set(). - * - * @ipd_port: IPD/PKO port to query - * - * Returns Link state - */ -cvmx_helper_link_info_t __cvmx_helper_spi_link_get(int ipd_port) -{ - cvmx_helper_link_info_t result; - int interface = cvmx_helper_get_interface_num(ipd_port); - int index = cvmx_helper_get_interface_index_num(ipd_port); - result.u64 = 0; - - if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_SIM) { - /* The simulator gives you a simulated full duplex link */ - result.s.link_up = 1; - result.s.full_duplex = 1; - result.s.speed = 10000; - } else if (cvmx_spi4000_is_present(interface)) { - union cvmx_gmxx_rxx_rx_inbnd inband = - cvmx_spi4000_check_speed(interface, index); - result.s.link_up = inband.s.status; - result.s.full_duplex = inband.s.duplex; - switch (inband.s.speed) { - case 0: /* 10 Mbps */ - result.s.speed = 10; - break; - case 1: /* 100 Mbps */ - result.s.speed = 100; - break; - case 2: /* 1 Gbps */ - result.s.speed = 1000; - break; - case 3: /* Illegal */ - result.s.speed = 0; - result.s.link_up = 0; - break; - } - } else { - /* For generic SPI we can't determine the link, just return some - sane results */ - result.s.link_up = 1; - result.s.full_duplex = 1; - result.s.speed = 10000; - } - return result; -} - -/** - * Configure an IPD/PKO port for the specified link state. This - * function does not influence auto negotiation at the PHY level. - * The passed link state must always match the link state returned - * by cvmx_helper_link_get(). It is normally best to use - * cvmx_helper_link_autoconf() instead. - * - * @ipd_port: IPD/PKO port to configure - * @link_info: The new link state - * - * Returns Zero on success, negative on failure - */ -int __cvmx_helper_spi_link_set(int ipd_port, cvmx_helper_link_info_t link_info) -{ - /* Nothing to do. If we have a SPI4000 then the setup was already performed - by cvmx_spi4000_check_speed(). If not then there isn't any link - info */ - return 0; -} |