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-rw-r--r--drivers/staging/octeon/cvmx-helper-xaui.c348
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diff --git a/drivers/staging/octeon/cvmx-helper-xaui.c b/drivers/staging/octeon/cvmx-helper-xaui.c
deleted file mode 100644
index a11e6769e234..000000000000
--- a/drivers/staging/octeon/cvmx-helper-xaui.c
+++ /dev/null
@@ -1,348 +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**************************************/
-
-/*
- * Functions for XAUI initialization, configuration,
- * and monitoring.
- *
- */
-
-#include <asm/octeon/octeon.h>
-
-#include "cvmx-config.h"
-
-#include "cvmx-helper.h"
-
-#include "cvmx-pko-defs.h"
-#include "cvmx-gmxx-defs.h"
-#include "cvmx-pcsxx-defs.h"
-
-void __cvmx_interrupt_gmxx_enable(int interface);
-void __cvmx_interrupt_pcsx_intx_en_reg_enable(int index, int block);
-void __cvmx_interrupt_pcsxx_int_en_reg_enable(int index);
-/**
- * Probe a XAUI interface and determine the number of ports
- * connected to it. The XAUI 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_xaui_probe(int interface)
-{
- int i;
- union cvmx_gmxx_hg2_control gmx_hg2_control;
- union cvmx_gmxx_inf_mode mode;
-
- /*
- * Due to errata GMX-700 on CN56XXp1.x and CN52XXp1.x, the
- * interface needs to be enabled before IPD otherwise per port
- * backpressure may not work properly.
- */
- mode.u64 = cvmx_read_csr(CVMX_GMXX_INF_MODE(interface));
- mode.s.en = 1;
- cvmx_write_csr(CVMX_GMXX_INF_MODE(interface), mode.u64);
-
- __cvmx_helper_setup_gmx(interface, 1);
-
- /*
- * Setup PKO to support 16 ports for HiGig2 virtual
- * ports. We're pointing all of the PKO packet ports for this
- * interface to the XAUI. This allows us to use HiGig2
- * backpressure per port.
- */
- for (i = 0; i < 16; i++) {
- union cvmx_pko_mem_port_ptrs pko_mem_port_ptrs;
- pko_mem_port_ptrs.u64 = 0;
- /*
- * We set each PKO port to have equal priority in a
- * round robin fashion.
- */
- pko_mem_port_ptrs.s.static_p = 0;
- pko_mem_port_ptrs.s.qos_mask = 0xff;
- /* All PKO ports map to the same XAUI hardware port */
- pko_mem_port_ptrs.s.eid = interface * 4;
- pko_mem_port_ptrs.s.pid = interface * 16 + i;
- cvmx_write_csr(CVMX_PKO_MEM_PORT_PTRS, pko_mem_port_ptrs.u64);
- }
-
- /* If HiGig2 is enabled return 16 ports, otherwise return 1 port */
- gmx_hg2_control.u64 = cvmx_read_csr(CVMX_GMXX_HG2_CONTROL(interface));
- if (gmx_hg2_control.s.hg2tx_en)
- return 16;
- else
- return 1;
-}
-
-/**
- * Bringup and enable a XAUI 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_xaui_enable(int interface)
-{
- union cvmx_gmxx_prtx_cfg gmx_cfg;
- union cvmx_pcsxx_control1_reg xauiCtl;
- union cvmx_pcsxx_misc_ctl_reg xauiMiscCtl;
- union cvmx_gmxx_tx_xaui_ctl gmxXauiTxCtl;
- union cvmx_gmxx_rxx_int_en gmx_rx_int_en;
- union cvmx_gmxx_tx_int_en gmx_tx_int_en;
- union cvmx_pcsxx_int_en_reg pcsx_int_en_reg;
-
- /* (1) Interface has already been enabled. */
-
- /* (2) Disable GMX. */
- xauiMiscCtl.u64 = cvmx_read_csr(CVMX_PCSXX_MISC_CTL_REG(interface));
- xauiMiscCtl.s.gmxeno = 1;
- cvmx_write_csr(CVMX_PCSXX_MISC_CTL_REG(interface), xauiMiscCtl.u64);
-
- /* (3) Disable GMX and PCSX interrupts. */
- gmx_rx_int_en.u64 = cvmx_read_csr(CVMX_GMXX_RXX_INT_EN(0, interface));
- cvmx_write_csr(CVMX_GMXX_RXX_INT_EN(0, interface), 0x0);
- gmx_tx_int_en.u64 = cvmx_read_csr(CVMX_GMXX_TX_INT_EN(interface));
- cvmx_write_csr(CVMX_GMXX_TX_INT_EN(interface), 0x0);
- pcsx_int_en_reg.u64 = cvmx_read_csr(CVMX_PCSXX_INT_EN_REG(interface));
- cvmx_write_csr(CVMX_PCSXX_INT_EN_REG(interface), 0x0);
-
- /* (4) Bring up the PCSX and GMX reconciliation layer. */
- /* (4)a Set polarity and lane swapping. */
- /* (4)b */
- gmxXauiTxCtl.u64 = cvmx_read_csr(CVMX_GMXX_TX_XAUI_CTL(interface));
- /* Enable better IFG packing and improves performance */
- gmxXauiTxCtl.s.dic_en = 1;
- gmxXauiTxCtl.s.uni_en = 0;
- cvmx_write_csr(CVMX_GMXX_TX_XAUI_CTL(interface), gmxXauiTxCtl.u64);
-
- /* (4)c Aply reset sequence */
- xauiCtl.u64 = cvmx_read_csr(CVMX_PCSXX_CONTROL1_REG(interface));
- xauiCtl.s.lo_pwr = 0;
- xauiCtl.s.reset = 1;
- cvmx_write_csr(CVMX_PCSXX_CONTROL1_REG(interface), xauiCtl.u64);
-
- /* Wait for PCS to come out of reset */
- if (CVMX_WAIT_FOR_FIELD64
- (CVMX_PCSXX_CONTROL1_REG(interface), union cvmx_pcsxx_control1_reg,
- reset, ==, 0, 10000))
- return -1;
- /* Wait for PCS to be aligned */
- if (CVMX_WAIT_FOR_FIELD64
- (CVMX_PCSXX_10GBX_STATUS_REG(interface),
- union cvmx_pcsxx_10gbx_status_reg, alignd, ==, 1, 10000))
- return -1;
- /* Wait for RX to be ready */
- if (CVMX_WAIT_FOR_FIELD64
- (CVMX_GMXX_RX_XAUI_CTL(interface), union cvmx_gmxx_rx_xaui_ctl,
- status, ==, 0, 10000))
- return -1;
-
- /* (6) Configure GMX */
- gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(0, interface));
- gmx_cfg.s.en = 0;
- cvmx_write_csr(CVMX_GMXX_PRTX_CFG(0, interface), gmx_cfg.u64);
-
- /* Wait for GMX RX to be idle */
- if (CVMX_WAIT_FOR_FIELD64
- (CVMX_GMXX_PRTX_CFG(0, interface), union cvmx_gmxx_prtx_cfg,
- rx_idle, ==, 1, 10000))
- return -1;
- /* Wait for GMX TX to be idle */
- if (CVMX_WAIT_FOR_FIELD64
- (CVMX_GMXX_PRTX_CFG(0, interface), union cvmx_gmxx_prtx_cfg,
- tx_idle, ==, 1, 10000))
- return -1;
-
- /* GMX configure */
- gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(0, interface));
- gmx_cfg.s.speed = 1;
- gmx_cfg.s.speed_msb = 0;
- gmx_cfg.s.slottime = 1;
- cvmx_write_csr(CVMX_GMXX_TX_PRTS(interface), 1);
- cvmx_write_csr(CVMX_GMXX_TXX_SLOT(0, interface), 512);
- cvmx_write_csr(CVMX_GMXX_TXX_BURST(0, interface), 8192);
- cvmx_write_csr(CVMX_GMXX_PRTX_CFG(0, interface), gmx_cfg.u64);
-
- /* (7) Clear out any error state */
- cvmx_write_csr(CVMX_GMXX_RXX_INT_REG(0, interface),
- cvmx_read_csr(CVMX_GMXX_RXX_INT_REG(0, interface)));
- cvmx_write_csr(CVMX_GMXX_TX_INT_REG(interface),
- cvmx_read_csr(CVMX_GMXX_TX_INT_REG(interface)));
- cvmx_write_csr(CVMX_PCSXX_INT_REG(interface),
- cvmx_read_csr(CVMX_PCSXX_INT_REG(interface)));
-
- /* Wait for receive link */
- if (CVMX_WAIT_FOR_FIELD64
- (CVMX_PCSXX_STATUS1_REG(interface), union cvmx_pcsxx_status1_reg,
- rcv_lnk, ==, 1, 10000))
- return -1;
- if (CVMX_WAIT_FOR_FIELD64
- (CVMX_PCSXX_STATUS2_REG(interface), union cvmx_pcsxx_status2_reg,
- xmtflt, ==, 0, 10000))
- return -1;
- if (CVMX_WAIT_FOR_FIELD64
- (CVMX_PCSXX_STATUS2_REG(interface), union cvmx_pcsxx_status2_reg,
- rcvflt, ==, 0, 10000))
- return -1;
-
- cvmx_write_csr(CVMX_GMXX_RXX_INT_EN(0, interface), gmx_rx_int_en.u64);
- cvmx_write_csr(CVMX_GMXX_TX_INT_EN(interface), gmx_tx_int_en.u64);
- cvmx_write_csr(CVMX_PCSXX_INT_EN_REG(interface), pcsx_int_en_reg.u64);
-
- cvmx_helper_link_autoconf(cvmx_helper_get_ipd_port(interface, 0));
-
- /* (8) Enable packet reception */
- xauiMiscCtl.s.gmxeno = 0;
- cvmx_write_csr(CVMX_PCSXX_MISC_CTL_REG(interface), xauiMiscCtl.u64);
-
- gmx_cfg.u64 = cvmx_read_csr(CVMX_GMXX_PRTX_CFG(0, interface));
- gmx_cfg.s.en = 1;
- cvmx_write_csr(CVMX_GMXX_PRTX_CFG(0, interface), gmx_cfg.u64);
-
- __cvmx_interrupt_pcsx_intx_en_reg_enable(0, interface);
- __cvmx_interrupt_pcsx_intx_en_reg_enable(1, interface);
- __cvmx_interrupt_pcsx_intx_en_reg_enable(2, interface);
- __cvmx_interrupt_pcsx_intx_en_reg_enable(3, interface);
- __cvmx_interrupt_pcsxx_int_en_reg_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_xaui_link_get(int ipd_port)
-{
- int interface = cvmx_helper_get_interface_num(ipd_port);
- union cvmx_gmxx_tx_xaui_ctl gmxx_tx_xaui_ctl;
- union cvmx_gmxx_rx_xaui_ctl gmxx_rx_xaui_ctl;
- union cvmx_pcsxx_status1_reg pcsxx_status1_reg;
- cvmx_helper_link_info_t result;
-
- gmxx_tx_xaui_ctl.u64 = cvmx_read_csr(CVMX_GMXX_TX_XAUI_CTL(interface));
- gmxx_rx_xaui_ctl.u64 = cvmx_read_csr(CVMX_GMXX_RX_XAUI_CTL(interface));
- pcsxx_status1_reg.u64 =
- cvmx_read_csr(CVMX_PCSXX_STATUS1_REG(interface));
- result.u64 = 0;
-
- /* Only return a link if both RX and TX are happy */
- if ((gmxx_tx_xaui_ctl.s.ls == 0) && (gmxx_rx_xaui_ctl.s.status == 0) &&
- (pcsxx_status1_reg.s.rcv_lnk == 1)) {
- result.s.link_up = 1;
- result.s.full_duplex = 1;
- result.s.speed = 10000;
- } else {
- /* Disable GMX and PCSX interrupts. */
- cvmx_write_csr(CVMX_GMXX_RXX_INT_EN(0, interface), 0x0);
- cvmx_write_csr(CVMX_GMXX_TX_INT_EN(interface), 0x0);
- cvmx_write_csr(CVMX_PCSXX_INT_EN_REG(interface), 0x0);
- }
- 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_xaui_link_set(int ipd_port, cvmx_helper_link_info_t link_info)
-{
- int interface = cvmx_helper_get_interface_num(ipd_port);
- union cvmx_gmxx_tx_xaui_ctl gmxx_tx_xaui_ctl;
- union cvmx_gmxx_rx_xaui_ctl gmxx_rx_xaui_ctl;
-
- gmxx_tx_xaui_ctl.u64 = cvmx_read_csr(CVMX_GMXX_TX_XAUI_CTL(interface));
- gmxx_rx_xaui_ctl.u64 = cvmx_read_csr(CVMX_GMXX_RX_XAUI_CTL(interface));
-
- /* If the link shouldn't be up, then just return */
- if (!link_info.s.link_up)
- return 0;
-
- /* Do nothing if both RX and TX are happy */
- if ((gmxx_tx_xaui_ctl.s.ls == 0) && (gmxx_rx_xaui_ctl.s.status == 0))
- return 0;
-
- /* Bring the link up */
- return __cvmx_helper_xaui_enable(interface);
-}
-
-/**
- * Configure a port for internal and/or external loopback. Internal loopback
- * causes packets sent by the port to be received by Octeon. External loopback
- * causes packets received from the wire to sent out again.
- *
- * @ipd_port: IPD/PKO port to loopback.
- * @enable_internal:
- * Non zero if you want internal loopback
- * @enable_external:
- * Non zero if you want external loopback
- *
- * Returns Zero on success, negative on failure.
- */
-extern int __cvmx_helper_xaui_configure_loopback(int ipd_port,
- int enable_internal,
- int enable_external)
-{
- int interface = cvmx_helper_get_interface_num(ipd_port);
- union cvmx_pcsxx_control1_reg pcsxx_control1_reg;
- union cvmx_gmxx_xaui_ext_loopback gmxx_xaui_ext_loopback;
-
- /* Set the internal loop */
- pcsxx_control1_reg.u64 =
- cvmx_read_csr(CVMX_PCSXX_CONTROL1_REG(interface));
- pcsxx_control1_reg.s.loopbck1 = enable_internal;
- cvmx_write_csr(CVMX_PCSXX_CONTROL1_REG(interface),
- pcsxx_control1_reg.u64);
-
- /* Set the external loop */
- gmxx_xaui_ext_loopback.u64 =
- cvmx_read_csr(CVMX_GMXX_XAUI_EXT_LOOPBACK(interface));
- gmxx_xaui_ext_loopback.s.en = enable_external;
- cvmx_write_csr(CVMX_GMXX_XAUI_EXT_LOOPBACK(interface),
- gmxx_xaui_ext_loopback.u64);
-
- /* Take the link through a reset */
- return __cvmx_helper_xaui_enable(interface);
-}

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