4736ccfd9c
Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
224 lines
6.1 KiB
C
224 lines
6.1 KiB
C
/***********************license start***************
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*
|
|
* Copyright (c) 2003-2008 Cavium Networks (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 Networks nor the names of
|
|
* its contributors may be used to endorse or promote products
|
|
* derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
|
|
* AND WITH ALL FAULTS AND CAVIUM NETWORKS 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.
|
|
*
|
|
*
|
|
* For any questions regarding licensing please contact marketing@caviumnetworks.com
|
|
*
|
|
***********************license end**************************************/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
* @file
|
|
*
|
|
* Interface to the EBH-30xx specific devices
|
|
*
|
|
* <hr>$Revision: 41586 $<hr>
|
|
*
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/timespec.h>
|
|
#include <sys/clock.h>
|
|
#include <sys/libkern.h>
|
|
|
|
#include <contrib/octeon-sdk/cvmx.h>
|
|
#include <contrib/octeon-sdk/cvmx-cn3010-evb-hs5.h>
|
|
#include <contrib/octeon-sdk/cvmx-twsi.h>
|
|
|
|
#define CT_CHECK(_expr, _msg) \
|
|
do { \
|
|
if (_expr) { \
|
|
cvmx_dprintf("Warning: RTC has invalid %s field\n", (_msg)); \
|
|
rc = -1; \
|
|
} \
|
|
} while(0);
|
|
|
|
static int validate_ct_struct(struct clocktime *ct)
|
|
{
|
|
int rc = 0;
|
|
|
|
if (!ct)
|
|
return -1;
|
|
|
|
CT_CHECK(ct->sec < 0 || ct->sec > 60, "second"); /* + Leap sec */
|
|
CT_CHECK(ct->min < 0 || ct->min > 59, "minute");
|
|
CT_CHECK(ct->hour < 0 || ct->hour > 23, "hour");
|
|
CT_CHECK(ct->day < 1 || ct->day > 31, "day");
|
|
CT_CHECK(ct->dow < 0 || ct->dow > 6, "day of week");
|
|
CT_CHECK(ct->mon < 1 || ct->mon > 12, "month");
|
|
CT_CHECK(ct->year > 2037,"year");
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* Board-specifc RTC read
|
|
* Time is expressed in seconds from epoch (Jan 1 1970 at 00:00:00 UTC)
|
|
* and converted internally to calendar format.
|
|
*/
|
|
uint32_t cvmx_rtc_ds1337_read(void)
|
|
{
|
|
int i, retry;
|
|
uint8_t reg[8];
|
|
uint8_t sec;
|
|
struct clocktime ct;
|
|
struct timespec ts;
|
|
|
|
|
|
memset(®, 0, sizeof(reg));
|
|
memset(&ct, 0, sizeof(ct));
|
|
|
|
for(retry=0; retry<2; retry++)
|
|
{
|
|
/* Lockless read: detects the infrequent roll-over and retries */
|
|
reg[0] = cvmx_twsi_read8(CVMX_RTC_DS1337_ADDR, 0x0);
|
|
for(i=1; i<7; i++)
|
|
reg[i] = cvmx_twsi_read8_cur_addr(CVMX_RTC_DS1337_ADDR);
|
|
|
|
sec = cvmx_twsi_read8(CVMX_RTC_DS1337_ADDR, 0x0);
|
|
if ((sec & 0xf) == (reg[0] & 0xf))
|
|
break; /* Time did not roll-over, value is correct */
|
|
}
|
|
|
|
ct.sec = bcd2bin(reg[0] & 0x7f);
|
|
ct.min = bcd2bin(reg[1] & 0x7f);
|
|
ct.hour = bcd2bin(reg[2] & 0x3f);
|
|
if ((reg[2] & 0x40) && (reg[2] & 0x20)) /* AM/PM format and is PM time */
|
|
{
|
|
ct.hour = (ct.hour + 12) % 24;
|
|
}
|
|
ct.dow = (reg[3] & 0x7) - 1; /* Day of week field is 0..6 */
|
|
ct.day = bcd2bin(reg[4] & 0x3f);
|
|
ct.mon = bcd2bin(reg[5] & 0x1f); /* Month field is 1..12 */
|
|
#if defined(OCTEON_BOARD_CAPK_0100ND)
|
|
/*
|
|
* CAPK-0100ND uses DS1307 that does not have century bit
|
|
*/
|
|
ct.year = 2000 + bcd2bin(reg[6]);
|
|
#else
|
|
ct.year = ((reg[5] & 0x80) ? 2000 : 1900) + bcd2bin(reg[6]);
|
|
#endif
|
|
|
|
if (validate_ct_struct(&ct))
|
|
cvmx_dprintf("Warning: RTC calendar is not configured properly\n");
|
|
|
|
if (clock_ct_to_ts(&ct, &ts) != 0) {
|
|
cvmx_dprintf("Warning: RTC calendar is not configured properly\n");
|
|
return 0;
|
|
}
|
|
|
|
return ts.tv_sec;
|
|
}
|
|
|
|
/*
|
|
* Board-specific RTC write
|
|
* Time returned is in seconds from epoch (Jan 1 1970 at 00:00:00 UTC)
|
|
*/
|
|
int cvmx_rtc_ds1337_write(uint32_t time)
|
|
{
|
|
struct clocktime ct;
|
|
struct timespec ts;
|
|
int i, rc, retry;
|
|
uint8_t reg[8];
|
|
uint8_t sec;
|
|
|
|
ts.tv_sec = time;
|
|
ts.tv_nsec = 0;
|
|
|
|
clock_ts_to_ct(&ts, &ct);
|
|
|
|
if (validate_ct_struct(&ct))
|
|
{
|
|
cvmx_dprintf("Error: RTC was passed wrong calendar values, write failed\n");
|
|
goto ct_invalid;
|
|
}
|
|
|
|
reg[0] = bin2bcd(ct.sec);
|
|
reg[1] = bin2bcd(ct.min);
|
|
reg[2] = bin2bcd(ct.hour); /* Force 0..23 format even if using AM/PM */
|
|
reg[3] = bin2bcd(ct.dow + 1);
|
|
reg[4] = bin2bcd(ct.day);
|
|
reg[5] = bin2bcd(ct.mon);
|
|
#if !defined(OCTEON_BOARD_CAPK_0100ND)
|
|
if (ct.year >= 2000) /* Set century bit*/
|
|
{
|
|
reg[5] |= 0x80;
|
|
}
|
|
#endif
|
|
reg[6] = bin2bcd(ct.year % 100);
|
|
|
|
/* Lockless write: detects the infrequent roll-over and retries */
|
|
for(retry=0; retry<2; retry++)
|
|
{
|
|
rc = 0;
|
|
for(i=0; i<7; i++)
|
|
{
|
|
rc |= cvmx_twsi_write8(CVMX_RTC_DS1337_ADDR, i, reg[i]);
|
|
}
|
|
|
|
sec = cvmx_twsi_read8(CVMX_RTC_DS1337_ADDR, 0x0);
|
|
if ((sec & 0xf) == (reg[0] & 0xf))
|
|
break; /* Time did not roll-over, value is correct */
|
|
}
|
|
|
|
return (rc ? -1 : 0);
|
|
|
|
ct_invalid:
|
|
return -1;
|
|
}
|
|
|
|
#ifdef CVMX_RTC_DEBUG
|
|
|
|
void cvmx_rtc_ds1337_dump_state(void)
|
|
{
|
|
int i = 0;
|
|
|
|
printf("RTC:\n");
|
|
printf("%d : %02X ", i, cvmx_twsi_read8(CVMX_RTC_DS1337_ADDR, 0x0));
|
|
for(i=1; i<16; i++) {
|
|
printf("%02X ", cvmx_twsi_read8_cur_addr(CVMX_RTC_DS1337_ADDR));
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
#endif /* CVMX_RTC_DEBUG */
|