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-rw-r--r--arch/mips/sni/time.c27
1 files changed, 18 insertions, 9 deletions
diff --git a/arch/mips/sni/time.c b/arch/mips/sni/time.c
index 20028fc7757e..b80877349d38 100644
--- a/arch/mips/sni/time.c
+++ b/arch/mips/sni/time.c
@@ -2,8 +2,10 @@
2#include <linux/interrupt.h> 2#include <linux/interrupt.h>
3#include <linux/time.h> 3#include <linux/time.h>
4 4
5#include <asm/i8253.h>
5#include <asm/sni.h> 6#include <asm/sni.h>
6#include <asm/time.h> 7#include <asm/time.h>
8#include <asm-generic/rtc.h>
7 9
8#define SNI_CLOCK_TICK_RATE 3686400 10#define SNI_CLOCK_TICK_RATE 3686400
9#define SNI_COUNTER2_DIV 64 11#define SNI_COUNTER2_DIV 64
@@ -42,23 +44,23 @@ static __init unsigned long dosample(void)
42 volatile u8 msb, lsb; 44 volatile u8 msb, lsb;
43 45
44 /* Start the counter. */ 46 /* Start the counter. */
45 outb_p (0x34, 0x43); 47 outb_p(0x34, 0x43);
46 outb_p(SNI_8254_TCSAMP_COUNTER & 0xff, 0x40); 48 outb_p(SNI_8254_TCSAMP_COUNTER & 0xff, 0x40);
47 outb (SNI_8254_TCSAMP_COUNTER >> 8, 0x40); 49 outb(SNI_8254_TCSAMP_COUNTER >> 8, 0x40);
48 50
49 /* Get initial counter invariant */ 51 /* Get initial counter invariant */
50 ct0 = read_c0_count(); 52 ct0 = read_c0_count();
51 53
52 /* Latch and spin until top byte of counter0 is zero */ 54 /* Latch and spin until top byte of counter0 is zero */
53 do { 55 do {
54 outb (0x00, 0x43); 56 outb(0x00, 0x43);
55 lsb = inb (0x40); 57 lsb = inb(0x40);
56 msb = inb (0x40); 58 msb = inb(0x40);
57 ct1 = read_c0_count(); 59 ct1 = read_c0_count();
58 } while (msb); 60 } while (msb);
59 61
60 /* Stop the counter. */ 62 /* Stop the counter. */
61 outb (0x38, 0x43); 63 outb(0x38, 0x43);
62 /* 64 /*
63 * Return the difference, this is how far the r4k counter increments 65 * Return the difference, this is how far the r4k counter increments
64 * for every 1/HZ seconds. We round off the nearest 1 MHz of master 66 * for every 1/HZ seconds. We round off the nearest 1 MHz of master
@@ -71,7 +73,7 @@ static __init unsigned long dosample(void)
71/* 73/*
72 * Here we need to calibrate the cycle counter to at least be close. 74 * Here we need to calibrate the cycle counter to at least be close.
73 */ 75 */
74__init void sni_cpu_time_init(void) 76void __init plat_time_init(void)
75{ 77{
76 unsigned long r4k_ticks[3]; 78 unsigned long r4k_ticks[3];
77 unsigned long r4k_tick; 79 unsigned long r4k_tick;
@@ -115,6 +117,8 @@ __init void sni_cpu_time_init(void)
115 (int) (r4k_tick % (500000 / HZ))); 117 (int) (r4k_tick % (500000 / HZ)));
116 118
117 mips_hpt_frequency = r4k_tick * HZ; 119 mips_hpt_frequency = r4k_tick * HZ;
120
121 setup_pit_timer();
118} 122}
119 123
120/* 124/*
@@ -133,7 +137,7 @@ void __init plat_timer_setup(struct irqaction *irq)
133 case SNI_BRD_10NEW: 137 case SNI_BRD_10NEW:
134 case SNI_BRD_TOWER_OASIC: 138 case SNI_BRD_TOWER_OASIC:
135 case SNI_BRD_MINITOWER: 139 case SNI_BRD_MINITOWER:
136 sni_a20r_timer_setup (irq); 140 sni_a20r_timer_setup(irq);
137 break; 141 break;
138 142
139 case SNI_BRD_PCI_TOWER: 143 case SNI_BRD_PCI_TOWER:
@@ -142,7 +146,12 @@ void __init plat_timer_setup(struct irqaction *irq)
142 case SNI_BRD_PCI_DESKTOP: 146 case SNI_BRD_PCI_DESKTOP:
143 case SNI_BRD_PCI_TOWER_CPLUS: 147 case SNI_BRD_PCI_TOWER_CPLUS:
144 case SNI_BRD_PCI_MTOWER_CPLUS: 148 case SNI_BRD_PCI_MTOWER_CPLUS:
145 sni_cpu_timer_setup (irq); 149 sni_cpu_timer_setup(irq);
146 break; 150 break;
147 } 151 }
148} 152}
153
154unsigned long read_persistent_clock(void)
155{
156 return -1;
157}