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Linux/arch/m68k/sun3x/time.c

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Diff markup

Differences between /arch/m68k/sun3x/time.c (Architecture mips) and /arch/i386/sun3x/time.c (Architecture i386)


  1 // SPDX-License-Identifier: GPL-2.0                 1 
  2 /*                                                
  3  *  linux/arch/m68k/sun3x/time.c                  
  4  *                                                
  5  *  Sun3x-specific time handling                  
  6  */                                               
  7                                                   
  8 #include <linux/types.h>                          
  9 #include <linux/kd.h>                             
 10 #include <linux/init.h>                           
 11 #include <linux/sched.h>                          
 12 #include <linux/kernel_stat.h>                    
 13 #include <linux/interrupt.h>                      
 14 #include <linux/rtc.h>                            
 15 #include <linux/bcd.h>                            
 16                                                   
 17 #include <asm/irq.h>                              
 18 #include <asm/io.h>                               
 19 #include <asm/machdep.h>                          
 20 #include <asm/traps.h>                            
 21 #include <asm/sun3x.h>                            
 22 #include <asm/sun3ints.h>                         
 23                                                   
 24 #include "time.h"                                 
 25                                                   
 26 #define M_CONTROL 0xf8                            
 27 #define M_SEC     0xf9                            
 28 #define M_MIN     0xfa                            
 29 #define M_HOUR    0xfb                            
 30 #define M_DAY     0xfc                            
 31 #define M_DATE    0xfd                            
 32 #define M_MONTH   0xfe                            
 33 #define M_YEAR    0xff                            
 34                                                   
 35 #define C_WRITE   0x80                            
 36 #define C_READ    0x40                            
 37 #define C_SIGN    0x20                            
 38 #define C_CALIB   0x1f                            
 39                                                   
 40 int sun3x_hwclk(int set, struct rtc_time *t)      
 41 {                                                 
 42         volatile struct mostek_dt *h =            
 43                 (struct mostek_dt *)(SUN3X_EEP    
 44         unsigned long flags;                      
 45                                                   
 46         local_irq_save(flags);                    
 47                                                   
 48         if(set) {                                 
 49                 h->csr |= C_WRITE;                
 50                 h->sec = bin2bcd(t->tm_sec);      
 51                 h->min = bin2bcd(t->tm_min);      
 52                 h->hour = bin2bcd(t->tm_hour);    
 53                 h->wday = bin2bcd(t->tm_wday);    
 54                 h->mday = bin2bcd(t->tm_mday);    
 55                 h->month = bin2bcd(t->tm_mon +    
 56                 h->year = bin2bcd(t->tm_year %    
 57                 h->csr &= ~C_WRITE;               
 58         } else {                                  
 59                 h->csr |= C_READ;                 
 60                 t->tm_sec = bcd2bin(h->sec);      
 61                 t->tm_min = bcd2bin(h->min);      
 62                 t->tm_hour = bcd2bin(h->hour);    
 63                 t->tm_wday = bcd2bin(h->wday);    
 64                 t->tm_mday = bcd2bin(h->mday);    
 65                 t->tm_mon = bcd2bin(h->month)     
 66                 t->tm_year = bcd2bin(h->year);    
 67                 h->csr &= ~C_READ;                
 68                 if (t->tm_year < 70)              
 69                         t->tm_year += 100;        
 70         }                                         
 71                                                   
 72         local_irq_restore(flags);                 
 73                                                   
 74         return 0;                                 
 75 }                                                 
 76                                                   
 77 #if 0                                             
 78 static irqreturn_t sun3x_timer_tick(int irq, v    
 79 {                                                 
 80         unsigned long flags;                      
 81                                                   
 82         local_irq_save(flags);                    
 83         /* Clear the pending interrupt - pulse    
 84         disable_irq(5);                           
 85         enable_irq(5);                            
 86         legacy_timer_tick(1);                     
 87         local_irq_restore(flags);                 
 88                                                   
 89         return IRQ_HANDLED;                       
 90 }                                                 
 91 #endif                                            
 92                                                   
 93 void __init sun3x_sched_init(void)                
 94 {                                                 
 95                                                   
 96         sun3_disable_interrupts();                
 97                                                   
 98                                                   
 99     /* Pulse enable low to get the clock start    
100         sun3_disable_irq(5);                      
101         sun3_enable_irq(5);                       
102         sun3_enable_interrupts();                 
103 }                                                 
104                                                   

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