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usr / src / sys / contrib / octeon-sdk /

📁 ..
📄 cvmip.h(5.88 KB)
📄 cvmx-abi.h(3.67 KB)
📄 cvmx-access-native.h(26.79 KB)
📄 cvmx-access.h(7.82 KB)
📄 cvmx-address.h(10.26 KB)
📄 cvmx-agl-defs.h(213.66 KB)
📄 cvmx-app-hotplug.c(27.64 KB)
📄 cvmx-app-hotplug.h(5.77 KB)
📄 cvmx-app-init-linux.c(14.29 KB)
📄 cvmx-app-init.c(22.54 KB)
📄 cvmx-app-init.h(19.32 KB)
📄 cvmx-asm.h(39.3 KB)
📄 cvmx-asx0-defs.h(5.19 KB)
📄 cvmx-asxx-defs.h(50.57 KB)
📄 cvmx-atomic.h(21.71 KB)
📄 cvmx-bootloader.h(5.64 KB)
📄 cvmx-bootmem.c(40.91 KB)
📄 cvmx-bootmem.h(18.88 KB)
📄 cvmx-ciu-defs.h(702.5 KB)
📄 cvmx-ciu2-defs.h(487.31 KB)
📄 cvmx-clock.c(4.48 KB)
📄 cvmx-clock.h(4.43 KB)
📄 cvmx-cmd-queue.c(11.84 KB)
📄 cvmx-cmd-queue.h(22 KB)
📄 cvmx-cn3010-evb-hs5.c(6.05 KB)
📄 cvmx-cn3010-evb-hs5.h(2.3 KB)
📄 cvmx-compactflash.c(12.8 KB)
📄 cvmx-compactflash.h(3.05 KB)
📄 cvmx-core.c(5.3 KB)
📄 cvmx-core.h(9.46 KB)
📄 cvmx-coremask.c(4.12 KB)
📄 cvmx-coremask.h(8.11 KB)
📄 cvmx-crypto.c(2.6 KB)
📄 cvmx-crypto.h(2.54 KB)
📄 cvmx-csr-enums.h(8.45 KB)
📄 cvmx-csr-typedefs.h(3.92 KB)
📄 cvmx-csr.h(11.46 KB)
📄 cvmx-dbg-defs.h(6.28 KB)
📄 cvmx-debug-handler.S(7.44 KB)
📄 cvmx-debug-remote.c(3.24 KB)
📄 cvmx-debug-uart.c(7.88 KB)
📄 cvmx-debug.c(55.98 KB)
📄 cvmx-debug.h(22.2 KB)
📄 cvmx-dfa-defs.h(383.08 KB)
📄 cvmx-dfa.c(3.7 KB)
📄 cvmx-dfa.h(34.87 KB)
📄 cvmx-dfm-defs.h(205.93 KB)
📄 cvmx-dma-engine.c(20.25 KB)
📄 cvmx-dma-engine.h(24.06 KB)
📄 cvmx-dpi-defs.h(107.61 KB)
📄 cvmx-ebt3000.c(3.82 KB)
📄 cvmx-ebt3000.h(2.25 KB)
📄 cvmx-endor-defs.h(311.42 KB)
📄 cvmx-eoi-defs.h(26.27 KB)
📄 cvmx-fau.h(20.31 KB)
📄 cvmx-flash.c(22.46 KB)
📄 cvmx-flash.h(3.8 KB)
📄 cvmx-fpa-defs.h(157.78 KB)
📄 cvmx-fpa.c(6.63 KB)
📄 cvmx-fpa.h(10.39 KB)
📄 cvmx-gmx.h(3.07 KB)
📄 cvmx-gmxx-defs.h(505.27 KB)
📄 cvmx-gpio-defs.h(36.89 KB)
📄 cvmx-gpio.h(5.48 KB)
📄 cvmx-helper-board.c(58 KB)
📄 cvmx-helper-board.h(7.82 KB)
📄 cvmx-helper-cfg.c(18.68 KB)
📄 cvmx-helper-cfg.h(8.1 KB)
📄 cvmx-helper-check-defines.h(4.1 KB)
📄 cvmx-helper-errata.c(11.91 KB)
📄 cvmx-helper-errata.h(3.24 KB)
📄 cvmx-helper-fpa.c(8.81 KB)
📄 cvmx-helper-fpa.h(3.21 KB)
📄 cvmx-helper-ilk.c(12.74 KB)
📄 cvmx-helper-ilk.h(3.58 KB)
📄 cvmx-helper-jtag.c(7.05 KB)
📄 cvmx-helper-jtag.h(3.91 KB)
📄 cvmx-helper-loop.c(4.35 KB)
📄 cvmx-helper-loop.h(2.78 KB)
📄 cvmx-helper-npi.c(5.72 KB)
📄 cvmx-helper-npi.h(2.82 KB)
📄 cvmx-helper-rgmii.c(19.12 KB)
📄 cvmx-helper-rgmii.h(4.5 KB)
📄 cvmx-helper-sgmii.c(27.09 KB)
📄 cvmx-helper-sgmii.h(4.3 KB)
📄 cvmx-helper-spi.c(8.4 KB)
📄 cvmx-helper-spi.h(3.68 KB)
📄 cvmx-helper-srio.c(11.58 KB)
📄 cvmx-helper-srio.h(3.6 KB)
📄 cvmx-helper-util.c(25.77 KB)
📄 cvmx-helper-util.h(9.88 KB)
📄 cvmx-helper-xaui.c(16.54 KB)
📄 cvmx-helper-xaui.h(4.29 KB)
📄 cvmx-helper.c(69.71 KB)
📄 cvmx-helper.h(12.7 KB)
📄 cvmx-hfa.c(5.04 KB)
📄 cvmx-hfa.h(10.3 KB)
📄 cvmx-higig.h(23.21 KB)
📄 cvmx-ilk-defs.h(170.31 KB)
📄 cvmx-ilk.c(45.16 KB)
📄 cvmx-ilk.h(5.89 KB)
📄 cvmx-interrupt-handler.S(5.87 KB)
📄 cvmx-interrupt.c(47.42 KB)
📄 cvmx-interrupt.h(8.07 KB)
📄 cvmx-iob-defs.h(89.11 KB)
📄 cvmx-iob1-defs.h(6.8 KB)
📄 cvmx-ipd-defs.h(186.51 KB)
📄 cvmx-ipd.c(12.88 KB)
📄 cvmx-ipd.h(6.3 KB)
📄 cvmx-ixf18201.c(12.8 KB)
📄 cvmx-ixf18201.h(3.54 KB)
📄 cvmx-key-defs.h(11 KB)
📄 cvmx-key.h(3.29 KB)
📄 cvmx-l2c-defs.h(353.27 KB)
📄 cvmx-l2c.c(52.95 KB)
📄 cvmx-l2c.h(19.72 KB)
📄 cvmx-l2d-defs.h(60.71 KB)
📄 cvmx-l2t-defs.h(50.68 KB)
📄 cvmx-led-defs.h(22.68 KB)
📄 cvmx-llm.c(36.51 KB)
📄 cvmx-llm.h(11.72 KB)
📄 cvmx-lmcx-defs.h(532.21 KB)
📄 cvmx-log-arc.S(5.67 KB)
📄 cvmx-log.c(18.26 KB)
📄 cvmx-log.h(4.95 KB)
📁 cvmx-malloc
📄 cvmx-malloc.h(7.2 KB)
📄 cvmx-mdio.h(15.99 KB)
📄 cvmx-mgmt-port.c(36.2 KB)
📄 cvmx-mgmt-port.h(7.23 KB)
📄 cvmx-mio-defs.h(454.14 KB)
📄 cvmx-mixx-defs.h(94.59 KB)
📄 cvmx-mpi-defs.h(33.42 KB)
📄 cvmx-nand.c(76.64 KB)
📄 cvmx-nand.h(26.85 KB)
📄 cvmx-ndf-defs.h(25.53 KB)
📄 cvmx-npei-defs.h(378.19 KB)
📄 cvmx-npi-defs.h(252.36 KB)
📄 cvmx-npi.h(4.69 KB)
📄 cvmx-packet.h(2.94 KB)
📄 cvmx-pci-defs.h(250.53 KB)
📄 cvmx-pci.h(2.37 KB)
📄 cvmx-pcie.c(63 KB)
📄 cvmx-pcie.h(10.08 KB)
📄 cvmx-pcieepx-defs.h(304.49 KB)
📄 cvmx-pciercx-defs.h(284.89 KB)
📄 cvmx-pcm-defs.h(12.34 KB)
📄 cvmx-pcmx-defs.h(46.12 KB)
📄 cvmx-pcsx-defs.h(71.23 KB)
📄 cvmx-pcsxx-defs.h(45.79 KB)
📄 cvmx-pemx-defs.h(68.97 KB)
📄 cvmx-pescx-defs.h(49.92 KB)
📄 cvmx-pexp-defs.h(97.89 KB)
📄 cvmx-pip-defs.h(315.91 KB)
📄 cvmx-pip.h(33.65 KB)
📄 cvmx-pko-defs.h(181.41 KB)
📄 cvmx-pko.c(32 KB)
📄 cvmx-pko.h(31.29 KB)
📄 cvmx-platform.h(7.45 KB)
📄 cvmx-pow-defs.h(93.02 KB)
📄 cvmx-pow.c(32.26 KB)
📄 cvmx-pow.h(100.93 KB)
📄 cvmx-power-throttle.c(7.25 KB)
📄 cvmx-power-throttle.h(3.85 KB)
📄 cvmx-profiler.c(7.81 KB)
📄 cvmx-profiler.h(3.15 KB)
📄 cvmx-qlm-tables.c(35.37 KB)
📄 cvmx-qlm.c(23.41 KB)
📄 cvmx-qlm.h(4.76 KB)
📄 cvmx-rad-defs.h(43.58 KB)
📄 cvmx-raid.c(4.71 KB)
📄 cvmx-raid.h(13.02 KB)
📄 cvmx-resources.config(7.66 KB)
📄 cvmx-rng.h(5.02 KB)
📄 cvmx-rnm-defs.h(13.03 KB)
📄 cvmx-rtc.h(4.21 KB)
📄 cvmx-rwlock.h(5.25 KB)
📄 cvmx-scratch.h(4.76 KB)
📄 cvmx-shared-linux-n32.ld(11.8 KB)
📄 cvmx-shared-linux-o32.ld(10.67 KB)
📄 cvmx-shared-linux.ld(11.77 KB)
📄 cvmx-shmem.c(18.89 KB)
📄 cvmx-shmem.h(4.11 KB)
📄 cvmx-sim-magic.h(5.59 KB)
📄 cvmx-sli-defs.h(312.94 KB)
📄 cvmx-smi-defs.h(4.09 KB)
📄 cvmx-smix-defs.h(21.71 KB)
📄 cvmx-spi.c(24.99 KB)
📄 cvmx-spi.h(10.22 KB)
📄 cvmx-spi4000.c(19.23 KB)
📄 cvmx-spinlock.h(11.73 KB)
📄 cvmx-spx0-defs.h(3.94 KB)
📄 cvmx-spxx-defs.h(62.44 KB)
📄 cvmx-srio.c(63.05 KB)
📄 cvmx-srio.h(26.68 KB)
📄 cvmx-sriomaintx-defs.h(222.52 KB)
📄 cvmx-sriox-defs.h(211.56 KB)
📄 cvmx-srxx-defs.h(14.41 KB)
📄 cvmx-sso-defs.h(87.33 KB)
📄 cvmx-stxx-defs.h(34.02 KB)
📄 cvmx-swap.h(4.11 KB)
📄 cvmx-sysinfo.c(8.78 KB)
📄 cvmx-sysinfo.h(6.45 KB)
📄 cvmx-thunder.c(9.22 KB)
📄 cvmx-thunder.h(4.54 KB)
📄 cvmx-tim-defs.h(58.36 KB)
📄 cvmx-tim.c(10.92 KB)
📄 cvmx-tim.h(12.1 KB)
📄 cvmx-tlb.c(10.12 KB)
📄 cvmx-tlb.h(5.07 KB)
📄 cvmx-tra-defs.h(4.59 KB)
📄 cvmx-tra.c(31.16 KB)
📄 cvmx-tra.h(34.28 KB)
📄 cvmx-trax-defs.h(197.09 KB)
📄 cvmx-twsi.c(16.25 KB)
📄 cvmx-twsi.h(10.22 KB)
📄 cvmx-uahcx-defs.h(181.38 KB)
📄 cvmx-uart.c(5.69 KB)
📄 cvmx-uart.h(4.58 KB)
📄 cvmx-uctlx-defs.h(50.26 KB)
📄 cvmx-usb.c(138.53 KB)
📄 cvmx-usb.h(46.67 KB)
📄 cvmx-usbcx-defs.h(259.23 KB)
📄 cvmx-usbd.c(36.09 KB)
📄 cvmx-usbd.h(9.82 KB)
📄 cvmx-usbnx-defs.h(136.12 KB)
📄 cvmx-utils.h(7.54 KB)
📄 cvmx-version.h(2.23 KB)
📄 cvmx-warn.c(2.75 KB)
📄 cvmx-warn.h(2.43 KB)
📄 cvmx-wqe.h(38.61 KB)
📄 cvmx-zip-defs.h(43.18 KB)
📄 cvmx-zip.c(7.37 KB)
📄 cvmx-zip.h(8.5 KB)
📄 cvmx-zone.c(4.7 KB)
📄 cvmx.h(3.5 KB)
📄 octeon-boot-info.h(8.08 KB)
📄 octeon-feature.c(4.71 KB)
📄 octeon-feature.h(11.94 KB)
📄 octeon-model.c(15.79 KB)
📄 octeon-model.h(16.53 KB)
📄 octeon-pci-console.c(19.73 KB)
📄 octeon-pci-console.h(5.18 KB)

Editing: cvmx-thunder.c

/***********************license start***************
 * Copyright (c) 2003-2010  Cavium Inc. (support@cavium.com). All rights
 * reserved.
 *
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials provided
 *     with the distribution.

*   * Neither the name of Cavium Inc. nor the names of
 *     its contributors may be used to endorse or promote products
 *     derived from this software without specific prior written
 *     permission.

* This Software, including technical data, may be subject to U.S. export  control
 * laws, including the U.S. Export Administration Act and its  associated
 * regulations, and may be subject to export or import  regulations in other
 * countries.

* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
 * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
 * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
 * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
 * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
 * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
 * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
 * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
 * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE  RISK ARISING OUT OF USE OR
 * PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
 ***********************license end**************************************/

/**
 * @file
 *
 * Interface to the Thunder specific devices
 *
 * <hr>$Revision: 70030 $<hr>
 *
 */

#include "cvmx.h"
#include "cvmx-sysinfo.h"
#include "cvmx-thunder.h"
#include "cvmx-gpio.h"
#include "cvmx-twsi.h"

static const int BYPASS_STATUS = 1<<5; /* GPIO 5 */
static const int BYPASS_EN     = 1<<6; /* GPIO 6 */
static const int WDT_BP_CLR    = 1<<7; /* GPIO 7 */

static const int RTC_CTL_ADDR = 0x7;
static const int RTC_CTL_BIT_EOSC   = 0x80;
static const int RTC_CTL_BIT_WACE   = 0x40;
static const int RTC_CTL_BIT_WD_ALM = 0x20;
static const int RTC_CTL_BIT_WDSTR  = 0x8;
static const int RTC_CTL_BIT_AIE    = 0x1;
static const int RTC_WD_ALM_CNT_BYTE0_ADDR = 0x4;

#define CVMX_LAN_BYPASS_MSG(...)  do {} while(0)

/*
 * Board-specifc RTC read
 * Time is expressed in seconds from epoch (Jan 1 1970 at 00:00:00 UTC)
 */
uint32_t cvmx_rtc_ds1374_read(void)
{
    int      retry;
    uint8_t  sec;
    uint32_t time;

for(retry=0; retry<2; retry++)
    {
        time = cvmx_twsi_read8(CVMX_RTC_DS1374_ADDR, 0x0);
        time |= (cvmx_twsi_read8_cur_addr(CVMX_RTC_DS1374_ADDR) & 0xff) << 8;
        time |= (cvmx_twsi_read8_cur_addr(CVMX_RTC_DS1374_ADDR) & 0xff) << 16;
        time |= (cvmx_twsi_read8_cur_addr(CVMX_RTC_DS1374_ADDR) & 0xff) << 24;

sec = cvmx_twsi_read8(CVMX_RTC_DS1374_ADDR, 0x0);
        if (sec == (time & 0xff))
            break; /* Time did not roll-over, value is correct */
    }

return time;
}

/*
 * Board-specific RTC write
 * Time is expressed in seconds from epoch (Jan 1 1970 at 00:00:00 UTC)
 */
int cvmx_rtc_ds1374_write(uint32_t time)
{
    int      rc;
    int      retry;
    uint8_t  sec;

for(retry=0; retry<2; retry++)
    {
        rc  = cvmx_twsi_write8(CVMX_RTC_DS1374_ADDR, 0x0, time & 0xff);
        rc |= cvmx_twsi_write8(CVMX_RTC_DS1374_ADDR, 0x1, (time >> 8) & 0xff);
        rc |= cvmx_twsi_write8(CVMX_RTC_DS1374_ADDR, 0x2, (time >> 16) & 0xff);
        rc |= cvmx_twsi_write8(CVMX_RTC_DS1374_ADDR, 0x3, (time >> 24) & 0xff);
        sec = cvmx_twsi_read8(CVMX_RTC_DS1374_ADDR, 0x0);
        if (sec == (time & 0xff))
            break; /* Time did not roll-over, value is correct */
    }

return (rc ? -1 : 0);
}

static int cvmx_rtc_ds1374_alarm_config(int WD, int WDSTR, int AIE)
{
    int val;

val = cvmx_twsi_read8(CVMX_RTC_DS1374_ADDR,RTC_CTL_ADDR);
    val = val & ~RTC_CTL_BIT_EOSC; /* Make sure that oscillator is running */
    WD?(val = val | RTC_CTL_BIT_WD_ALM):(val = val & ~RTC_CTL_BIT_WD_ALM);
    WDSTR?(val = val | RTC_CTL_BIT_WDSTR):(val = val & ~RTC_CTL_BIT_WDSTR);
    AIE?(val = val | RTC_CTL_BIT_AIE):(val = val & ~RTC_CTL_BIT_AIE);
    cvmx_twsi_write8(CVMX_RTC_DS1374_ADDR,RTC_CTL_ADDR, val);
    return 0;
}

static int cvmx_rtc_ds1374_alarm_set(int alarm_on)
{
    uint8_t val;

if (alarm_on)
    {
        val = cvmx_twsi_read8(CVMX_RTC_DS1374_ADDR,RTC_CTL_ADDR);
        cvmx_twsi_write8(CVMX_RTC_DS1374_ADDR,RTC_CTL_ADDR, val | RTC_CTL_BIT_WACE);
    }
    else
    {
        val = cvmx_twsi_read8(CVMX_RTC_DS1374_ADDR,RTC_CTL_ADDR);
        cvmx_twsi_write8(CVMX_RTC_DS1374_ADDR,RTC_CTL_ADDR, val & ~RTC_CTL_BIT_WACE);
    }
    return 0;
}

static int cvmx_rtc_ds1374_alarm_counter_set(uint32_t interval)
{
    int i;
    int rc = 0;

for(i=0;i<3;i++)
    {
        rc |= cvmx_twsi_write8(CVMX_RTC_DS1374_ADDR, RTC_WD_ALM_CNT_BYTE0_ADDR+i, interval & 0xFF);
        interval >>= 8;
    }
    return rc;
}

#if 0 /* XXX unused */
static uint32_t cvmx_rtc_ds1374_alarm_counter_get(void)
{
    int i;
    uint32_t interval = 0;

for(i=0;i<3;i++)
    {
        interval |= ( cvmx_twsi_read8(CVMX_RTC_DS1374_ADDR,RTC_WD_ALM_CNT_BYTE0_ADDR+i) & 0xff) << (i*8);
    }
    return interval;
}
#endif

#ifdef CVMX_RTC_DEBUG

void cvmx_rtc_ds1374_dump_state(void)
{
    int i = 0;

cvmx_dprintf("RTC:\n");
    cvmx_dprintf("%d : %02X ", i, cvmx_twsi_read8(CVMX_RTC_DS1374_ADDR, 0x0));
    for(i=1; i<10; i++)
    {
        cvmx_dprintf("%02X ", cvmx_twsi_read8_cur_addr(CVMX_RTC_DS1374_ADDR));
    }
    cvmx_dprintf("\n");
}

#endif /* CVMX_RTC_DEBUG */

/*
 *  LAN bypass functionality
 */

/* Private initialization function */
static int cvmx_lan_bypass_init(void)
{
    const int CLR_PULSE = 100;  /* Longer than 100 ns (on CPUs up to 1 GHz) */

//Clear GPIO 6
    cvmx_gpio_clear(BYPASS_EN);

//Disable WDT
    cvmx_rtc_ds1374_alarm_set(0);

//GPIO(7) Send a low pulse
    cvmx_gpio_clear(WDT_BP_CLR);
    cvmx_wait(CLR_PULSE);
    cvmx_gpio_set(WDT_BP_CLR);
    return 0;
}

/**
 * Set LAN bypass mode.
 *
 * Supported modes are:
 * - CVMX_LAN_BYPASS_OFF
 *     <br>LAN ports are connected ( port 0 <--> Octeon <--> port 1 )
 *
 * - CVMX_LAN_BYPASS_GPIO
 *     <br>LAN bypass is controlled by software using cvmx_lan_bypass_force() function.
 *     When transitioning to this mode, default is LAN bypass enabled
 *     ( port 0 <--> port 1, -- Octeon ).
 *
 * - CVMX_LAN_BYPASS_WATCHDOG
 *     <br>LAN bypass is inactive as long as a watchdog is kept alive.
 *     The default expiration time is 1 second and the function to
 *     call periodically to prevent watchdog expiration is
 *     cvmx_lan_bypass_keep_alive().
 *
 * @param mode           LAN bypass mode
 *
 * @return Error code, or 0 in case of success
 */
int cvmx_lan_bypass_mode_set(cvmx_lan_bypass_mode_t mode)
{
    switch(mode)
    {
    case CVMX_LAN_BYPASS_GPIO:
        /* make lan bypass enable */
        cvmx_lan_bypass_init();
        cvmx_gpio_set(BYPASS_EN);
        CVMX_LAN_BYPASS_MSG("Enable LAN bypass by GPIO. \n");
        break;

case CVMX_LAN_BYPASS_WATCHDOG:
        /* make lan bypass enable */
        cvmx_lan_bypass_init();
        /* Set WDT parameters and turn it on */
        cvmx_rtc_ds1374_alarm_counter_set(0x1000);    /* 4096 ticks = 1 sec */
        cvmx_rtc_ds1374_alarm_config(1,1,1);
        cvmx_rtc_ds1374_alarm_set(1);
        CVMX_LAN_BYPASS_MSG("Enable LAN bypass by WDT. \n");
        break;

case CVMX_LAN_BYPASS_OFF:
        /* make lan bypass disable */
        cvmx_lan_bypass_init();
        CVMX_LAN_BYPASS_MSG("Disable LAN bypass. \n");
        break;

default:
        CVMX_LAN_BYPASS_MSG("%s: LAN bypass mode %d not supported\n", __FUNCTION__, mode);
        break;
    }
    return 0;
}

/**
 * Refresh watchdog timer.
 *
 * Call periodically (less than 1 second) to prevent triggering LAN bypass.
 * The alternative cvmx_lan_bypass_keep_alive_ms() is provided for cases
 * where a variable interval is required.
 */
void cvmx_lan_bypass_keep_alive(void)
{
    cvmx_rtc_ds1374_alarm_counter_set(0x1000);    /* 4096 ticks = 1 second */
}

/**
 * Refresh watchdog timer, setting a specific expiration interval.
 *
 * @param interval_ms     Interval, in milliseconds, to next watchdog expiration.
 */
void cvmx_lan_bypass_keep_alive_ms(uint32_t interval_ms)
{
    cvmx_rtc_ds1374_alarm_counter_set((interval_ms * 0x1000) / 1000);
}

/**
 * Control LAN bypass via software.
 *
 * @param force_bypass   Force LAN bypass to active (1) or inactive (0)
 *
 * @return Error code, or 0 in case of success
 */
int cvmx_lan_bypass_force(int force_bypass)
{
    if (force_bypass)
    {
        //Set GPIO 6
        cvmx_gpio_set(BYPASS_EN);
    }
    else
    {
        cvmx_lan_bypass_init();
    }
    return 0;
}

/**
 * Return status of LAN bypass circuit.
 *
 * @return 1 if ports are in LAN bypass, or 0 if normally connected
 */
int cvmx_lan_bypass_is_active(void)
{
    return !!(cvmx_gpio_read() & BYPASS_STATUS);
}

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