upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/drivers/sk98lin/h/ski2c.h

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/******************************************************************************
*
* Name: ski2c.h
* Project: GEnesis, PCI Gigabit Ethernet Adapter
* Version: $Revision: 1.34 $
* Date: $Date: 2003/01/28 09:11:21 $
* Purpose: Defines to access Voltage and Temperature Sensor
*
******************************************************************************/
/******************************************************************************
*
* (C)Copyright 1998-2003 SysKonnect GmbH.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* The information in this file is provided "AS IS" without warranty.
*
******************************************************************************/
/******************************************************************************
*
* History:
*
* $Log: ski2c.h,v $
* Revision 1.34 2003/01/28 09:11:21 rschmidt
* Editorial changes
*
* Revision 1.33 2002/10/14 16:40:50 rschmidt
* Editorial changes (TWSI)
*
* Revision 1.32 2002/08/13 08:55:07 rschmidt
* Editorial changes
*
* Revision 1.31 2002/08/06 09:44:22 jschmalz
* Extensions and changes for Yukon
*
* Revision 1.30 2001/04/05 11:38:09 rassmann
* Set SenState to idle in SkI2cWaitIrq().
* Changed error message in SkI2cWaitIrq().
*
* Revision 1.29 2000/08/03 14:28:17 rassmann
* - Added function to wait for I2C being ready before resetting the board.
* - Replaced one duplicate "out of range" message with correct one.
*
* Revision 1.28 1999/11/22 13:55:46 cgoos
* Changed license header to GPL.
*
* Revision 1.27 1999/05/20 09:23:10 cgoos
* Changes for 1000Base-T (Fan sensors).
*
* Revision 1.26 1998/12/01 13:45:47 gklug
* add: InitLevel to I2c struct
*
* Revision 1.25 1998/11/03 06:55:16 gklug
* add: Dummy Reads to I2c struct
*
* Revision 1.24 1998/10/02 14:28:59 cgoos
* Added prototype for SkI2cIsr.
*
* Revision 1.23 1998/09/08 12:20:11 gklug
* add: prototypes for init and read functions
*
* Revision 1.22 1998/09/08 07:37:56 gklug
* add: log error if PCI_IO voltage sensor could not be initialized
*
* Revision 1.21 1998/09/04 08:38:05 malthoff
* Change the values for I2C_READ and I2C_WRITE
*
* Revision 1.20 1998/08/25 07:52:22 gklug
* chg: Timestamps (last) added for logging
*
* Revision 1.19 1998/08/25 06:09:00 gklug
* rmv: warning and error levels of the individual sensors.
* add: timing definitions for sending traps and logging errors
*
* Revision 1.18 1998/08/20 11:41:15 gklug
* chg: omit STRCPY macro by using char * as Sensor Description
*
* Revision 1.17 1998/08/20 11:37:43 gklug
* chg: change Ioc to IoC
*
* Revision 1.16 1998/08/20 11:30:38 gklug
* fix: SenRead declaration
*
* Revision 1.15 1998/08/20 11:27:53 gklug
* fix: Compile bugs with new awrning constants
*
* Revision 1.14 1998/08/20 08:53:12 gklug
* fix: compiler errors
* add: Threshold values
*
* Revision 1.13 1998/08/19 12:21:16 gklug
* fix: remove struct from C files (see CCC)
* add: typedefs for all structs
*
* Revision 1.12 1998/08/19 10:57:41 gklug
* add: Warning levels
*
* Revision 1.11 1998/08/18 08:37:02 malthoff
* Prototypes not required for SK_DIAG.
*
* Revision 1.10 1998/08/17 13:54:00 gklug
* fix: declaration of event function
*
* Revision 1.9 1998/08/17 06:48:39 malthoff
* Remove some unrequired macros.
* Fix the compiler errors.
*
* Revision 1.8 1998/08/14 06:47:19 gklug
* fix: Values are intergers
*
* Revision 1.7 1998/08/14 06:26:05 gklug
* add: Init error message
*
* Revision 1.6 1998/08/13 08:31:08 gklug
* add: Error message
*
* Revision 1.5 1998/08/12 14:32:04 gklug
* add: new error code/message
*
* Revision 1.4 1998/08/12 13:39:08 gklug
* chg: names of error messages
* add: defines for Sensor type and thresholds
*
* Revision 1.3 1998/08/11 07:57:16 gklug
* add: sensor struct
* add: Timeout defines
* add: I2C control struct for pAC
*
* Revision 1.2 1998/07/17 11:29:02 gklug
* rmv: Microwire and SMTPANIC
*
* Revision 1.1 1998/06/19 14:30:10 malthoff
* Created. Sources taken from ML Project.
*
*
******************************************************************************/
/*
* SKI2C.H contains all I2C specific defines
*/
#ifndef _SKI2C_H_
#define _SKI2C_H_
typedef struct s_Sensor SK_SENSOR;
#include "h/skgei2c.h"
/*
* Define the I2C events.
*/
#define SK_I2CEV_IRQ 1 /* IRQ happened Event */
#define SK_I2CEV_TIM 2 /* Timeout event */
#define SK_I2CEV_CLEAR 3 /* Clear MIB Values */
/*
* Define READ and WRITE Constants.
*/
#undef I2C_READ /* just in case */
#undef I2C_WRITE /* just in case */
#define I2C_READ 0
#define I2C_WRITE 1
#define I2C_BURST 1
#define I2C_SINGLE 0
#define SKERR_I2C_E001 (SK_ERRBASE_I2C+0)
#define SKERR_I2C_E001MSG "Sensor index unknown"
#define SKERR_I2C_E002 (SKERR_I2C_E001+1)
#define SKERR_I2C_E002MSG "TWSI: transfer does not complete"
#define SKERR_I2C_E003 (SKERR_I2C_E002+1)
#define SKERR_I2C_E003MSG "LM80: NAK on device send"
#define SKERR_I2C_E004 (SKERR_I2C_E003+1)
#define SKERR_I2C_E004MSG "LM80: NAK on register send"
#define SKERR_I2C_E005 (SKERR_I2C_E004+1)
#define SKERR_I2C_E005MSG "LM80: NAK on device (2) send"
#define SKERR_I2C_E006 (SKERR_I2C_E005+1)
#define SKERR_I2C_E006MSG "Unknown event"
#define SKERR_I2C_E007 (SKERR_I2C_E006+1)
#define SKERR_I2C_E007MSG "LM80 read out of state"
#define SKERR_I2C_E008 (SKERR_I2C_E007+1)
#define SKERR_I2C_E008MSG "Unexpected sensor read completed"
#define SKERR_I2C_E009 (SKERR_I2C_E008+1)
#define SKERR_I2C_E009MSG "WARNING: temperature sensor out of range"
#define SKERR_I2C_E010 (SKERR_I2C_E009+1)
#define SKERR_I2C_E010MSG "WARNING: voltage sensor out of range"
#define SKERR_I2C_E011 (SKERR_I2C_E010+1)
#define SKERR_I2C_E011MSG "ERROR: temperature sensor out of range"
#define SKERR_I2C_E012 (SKERR_I2C_E011+1)
#define SKERR_I2C_E012MSG "ERROR: voltage sensor out of range"
#define SKERR_I2C_E013 (SKERR_I2C_E012+1)
#define SKERR_I2C_E013MSG "ERROR: couldn't init sensor"
#define SKERR_I2C_E014 (SKERR_I2C_E013+1)
#define SKERR_I2C_E014MSG "WARNING: fan sensor out of range"
#define SKERR_I2C_E015 (SKERR_I2C_E014+1)
#define SKERR_I2C_E015MSG "ERROR: fan sensor out of range"
#define SKERR_I2C_E016 (SKERR_I2C_E015+1)
#define SKERR_I2C_E016MSG "TWSI: active transfer does not complete"
/*
* Define Timeout values
*/
#define SK_I2C_TIM_LONG 2000000L /* 2 seconds */
#define SK_I2C_TIM_SHORT 100000L /* 100 milliseconds */
#define SK_I2C_TIM_WATCH 1000000L /* 1 second */
/*
* Define trap and error log hold times
*/
#ifndef SK_SEN_ERR_TR_HOLD
#define SK_SEN_ERR_TR_HOLD (4*SK_TICKS_PER_SEC)
#endif
#ifndef SK_SEN_ERR_LOG_HOLD
#define SK_SEN_ERR_LOG_HOLD (60*SK_TICKS_PER_SEC)
#endif
#ifndef SK_SEN_WARN_TR_HOLD
#define SK_SEN_WARN_TR_HOLD (15*SK_TICKS_PER_SEC)
#endif
#ifndef SK_SEN_WARN_LOG_HOLD
#define SK_SEN_WARN_LOG_HOLD (15*60*SK_TICKS_PER_SEC)
#endif
/*
* Defines for SenType
*/
#define SK_SEN_UNKNOWN 0
#define SK_SEN_TEMP 1
#define SK_SEN_VOLT 2
#define SK_SEN_FAN 3
/*
* Define for the SenErrorFlag
*/
#define SK_SEN_ERR_NOT_PRESENT 0 /* Error Flag: Sensor not present */
#define SK_SEN_ERR_OK 1 /* Error Flag: O.K. */
#define SK_SEN_ERR_WARN 2 /* Error Flag: Warning */
#define SK_SEN_ERR_ERR 3 /* Error Flag: Error */
#define SK_SEN_ERR_FAULTY 4 /* Error Flag: Faulty */
/*
* Define the Sensor struct
*/
struct s_Sensor {
char *SenDesc; /* Description */
int SenType; /* Voltage or Temperature */
SK_I32 SenValue; /* Current value of the sensor */
SK_I32 SenThreErrHigh; /* High error Threshhold of this sensor */
SK_I32 SenThreWarnHigh; /* High warning Threshhold of this sensor */
SK_I32 SenThreErrLow; /* Lower error Threshold of the sensor */
SK_I32 SenThreWarnLow; /* Lower warning Threshold of the sensor */
int SenErrFlag; /* Sensor indicated an error */
SK_BOOL SenInit; /* Is sensor initialized ? */
SK_U64 SenErrCts; /* Error trap counter */
SK_U64 SenWarnCts; /* Warning trap counter */
SK_U64 SenBegErrTS; /* Begin error timestamp */
SK_U64 SenBegWarnTS; /* Begin warning timestamp */
SK_U64 SenLastErrTrapTS; /* Last error trap timestamp */
SK_U64 SenLastErrLogTS; /* Last error log timestamp */
SK_U64 SenLastWarnTrapTS; /* Last warning trap timestamp */
SK_U64 SenLastWarnLogTS; /* Last warning log timestamp */
int SenState; /* Sensor State (see HW specific include) */
int (*SenRead)(SK_AC *pAC, SK_IOC IoC, struct s_Sensor *pSen);
/* Sensors read function */
SK_U16 SenReg; /* Register Address for this sensor */
SK_U8 SenDev; /* Device Selection for this sensor */
};
typedef struct s_I2c {
SK_SENSOR SenTable[SK_MAX_SENSORS]; /* Sensor Table */
int CurrSens; /* Which sensor is currently queried */
int MaxSens; /* Max. number of sensors */
int TimerMode; /* Use the timer also to watch the state machine */
int InitLevel; /* Initialized Level */
#ifndef SK_DIAG
int DummyReads; /* Number of non-checked dummy reads */
SK_TIMER SenTimer; /* Sensors timer */
#endif /* !SK_DIAG */
} SK_I2C;
extern int SkI2cReadSensor(SK_AC *pAC, SK_IOC IoC, SK_SENSOR *pSen);
#ifndef SK_DIAG
extern int SkI2cEvent(SK_AC *pAC, SK_IOC IoC, SK_U32 Event, SK_EVPARA Para);
extern int SkI2cInit(SK_AC *pAC, SK_IOC IoC, int Level);
extern void SkI2cWaitIrq(SK_AC *pAC, SK_IOC IoC);
extern void SkI2cIsr(SK_AC *pAC, SK_IOC IoC);
#endif
#endif /* n_SKI2C_H */