cregit-Linux how code gets into the kernel

Release 4.18 include/linux/fsl/ptp_qoriq.h

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (C) 2010 OMICRON electronics GmbH
 * Copyright 2018 NXP
 */
#ifndef __PTP_QORIQ_H__

#define __PTP_QORIQ_H__

#include <linux/io.h>
#include <linux/ptp_clock_kernel.h>

/*
 * qoriq ptp registers
 * Generated by regen.tcl on Thu May 13 01:38:57 PM CEST 2010
 */

struct qoriq_ptp_registers {
	
u32 tmr_ctrl;     /* Timer control register */
	
u32 tmr_tevent;   /* Timestamp event register */
	
u32 tmr_temask;   /* Timer event mask register */
	
u32 tmr_pevent;   /* Timestamp event register */
	
u32 tmr_pemask;   /* Timer event mask register */
	
u32 tmr_stat;     /* Timestamp status register */
	
u32 tmr_cnt_h;    /* Timer counter high register */
	
u32 tmr_cnt_l;    /* Timer counter low register */
	
u32 tmr_add;      /* Timer drift compensation addend register */
	
u32 tmr_acc;      /* Timer accumulator register */
	
u32 tmr_prsc;     /* Timer prescale */
	
u8  res1[4];
	
u32 tmroff_h;     /* Timer offset high */
	
u32 tmroff_l;     /* Timer offset low */
	
u8  res2[8];
	
u32 tmr_alarm1_h; /* Timer alarm 1 high register */
	
u32 tmr_alarm1_l; /* Timer alarm 1 high register */
	
u32 tmr_alarm2_h; /* Timer alarm 2 high register */
	
u32 tmr_alarm2_l; /* Timer alarm 2 high register */
	
u8  res3[48];
	
u32 tmr_fiper1;   /* Timer fixed period interval */
	
u32 tmr_fiper2;   /* Timer fixed period interval */
	
u32 tmr_fiper3;   /* Timer fixed period interval */
	
u8  res4[20];
	
u32 tmr_etts1_h;  /* Timestamp of general purpose external trigger */
	
u32 tmr_etts1_l;  /* Timestamp of general purpose external trigger */
	
u32 tmr_etts2_h;  /* Timestamp of general purpose external trigger */
	
u32 tmr_etts2_l;  /* Timestamp of general purpose external trigger */
};

/* Bit definitions for the TMR_CTRL register */

#define ALM1P                 (1<<31) 
/* Alarm1 output polarity */

#define ALM2P                 (1<<30) 
/* Alarm2 output polarity */

#define FIPERST               (1<<28) 
/* FIPER start indication */

#define PP1L                  (1<<27) 
/* Fiper1 pulse loopback mode enabled. */

#define PP2L                  (1<<26) 
/* Fiper2 pulse loopback mode enabled. */

#define TCLK_PERIOD_SHIFT     (16) 
/* 1588 timer reference clock period. */

#define TCLK_PERIOD_MASK      (0x3ff)

#define RTPE                  (1<<15) 
/* Record Tx Timestamp to PAL Enable. */

#define FRD                   (1<<14) 
/* FIPER Realignment Disable */

#define ESFDP                 (1<<11) 
/* External Tx/Rx SFD Polarity. */

#define ESFDE                 (1<<10) 
/* External Tx/Rx SFD Enable. */

#define ETEP2                 (1<<9) 
/* External trigger 2 edge polarity */

#define ETEP1                 (1<<8) 
/* External trigger 1 edge polarity */

#define COPH                  (1<<7) 
/* Generated clock output phase. */

#define CIPH                  (1<<6) 
/* External oscillator input clock phase */

#define TMSR                  (1<<5) 
/* Timer soft reset. */

#define BYP                   (1<<3) 
/* Bypass drift compensated clock */

#define TE                    (1<<2) 
/* 1588 timer enable. */

#define CKSEL_SHIFT           (0)    
/* 1588 Timer reference clock source */

#define CKSEL_MASK            (0x3)

/* Bit definitions for the TMR_TEVENT register */

#define ETS2                  (1<<25) 
/* External trigger 2 timestamp sampled */

#define ETS1                  (1<<24) 
/* External trigger 1 timestamp sampled */

#define ALM2                  (1<<17) 
/* Current time = alarm time register 2 */

#define ALM1                  (1<<16) 
/* Current time = alarm time register 1 */

#define PP1                   (1<<7)  
/* periodic pulse generated on FIPER1 */

#define PP2                   (1<<6)  
/* periodic pulse generated on FIPER2 */

#define PP3                   (1<<5)  
/* periodic pulse generated on FIPER3 */

/* Bit definitions for the TMR_TEMASK register */

#define ETS2EN                (1<<25) 
/* External trigger 2 timestamp enable */

#define ETS1EN                (1<<24) 
/* External trigger 1 timestamp enable */

#define ALM2EN                (1<<17) 
/* Timer ALM2 event enable */

#define ALM1EN                (1<<16) 
/* Timer ALM1 event enable */

#define PP1EN                 (1<<7) 
/* Periodic pulse event 1 enable */

#define PP2EN                 (1<<6) 
/* Periodic pulse event 2 enable */

/* Bit definitions for the TMR_PEVENT register */

#define TXP2                  (1<<9) 
/* PTP transmitted timestamp im TXTS2 */

#define TXP1                  (1<<8) 
/* PTP transmitted timestamp in TXTS1 */

#define RXP                   (1<<0) 
/* PTP frame has been received */

/* Bit definitions for the TMR_PEMASK register */

#define TXP2EN                (1<<9) 
/* Transmit PTP packet event 2 enable */

#define TXP1EN                (1<<8) 
/* Transmit PTP packet event 1 enable */

#define RXPEN                 (1<<0) 
/* Receive PTP packet event enable */

/* Bit definitions for the TMR_STAT register */

#define STAT_VEC_SHIFT        (0) 
/* Timer general purpose status vector */

#define STAT_VEC_MASK         (0x3f)

/* Bit definitions for the TMR_PRSC register */

#define PRSC_OCK_SHIFT        (0) 
/* Output clock division/prescale factor. */

#define PRSC_OCK_MASK         (0xffff)



#define DRIVER		"ptp_qoriq"

#define DEFAULT_CKSEL	1

#define N_EXT_TS	2

#define REG_SIZE	sizeof(struct qoriq_ptp_registers)


struct qoriq_ptp {
	
struct qoriq_ptp_registers __iomem *regs;
	
spinlock_t lock; /* protects regs */
	
struct ptp_clock *clock;
	
struct ptp_clock_info caps;
	
struct resource *rsrc;
	
int irq;
	
int phc_index;
	
u64 alarm_interval; /* for periodic alarm */
	
u64 alarm_value;
	
u32 tclk_period;  /* nanoseconds */
	
u32 tmr_prsc;
	
u32 tmr_add;
	
u32 cksel;
	
u32 tmr_fiper1;
	
u32 tmr_fiper2;
};


static inline u32 qoriq_read(unsigned __iomem *addr) { u32 val; val = ioread32be(addr); return val; }

Contributors

PersonTokensPropCommitsCommitProp
Yangbo Lu25100.00%1100.00%
Total25100.00%1100.00%


static inline void qoriq_write(unsigned __iomem *addr, u32 val) { iowrite32be(val, addr); }

Contributors

PersonTokensPropCommitsCommitProp
Yangbo Lu22100.00%1100.00%
Total22100.00%1100.00%

#endif

Overall Contributors

PersonTokensPropCommitsCommitProp
Yangbo Lu484100.00%1100.00%
Total484100.00%1100.00%
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.