1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
--- drivers/i2c/chips/Kconfig.orig 2004-06-16 01:19:35.000000000 -0400
+++ drivers/i2c/chips/Kconfig 2004-09-22 18:09:48.454794342 -0400
@@ -240,6 +240,16 @@
This driver can also be built as a module. If so, the module
will be called pcf8591.
+config SENSORS_X1205
+ tristate "Xicor X1205 RTC chip"
+ depends on I2C && EXPERIMENTAL
+ select I2C_SENSOR
+ help
+ If you say yes here you get support for the Xicor x1205 RTC chip.
+
+ This driver can also be built as a module. If so, the module
+ will be called x1205-rtc
+
config SENSORS_RTC8564
tristate "Epson 8564 RTC chip"
depends on I2C && EXPERIMENTA
--- drivers/i2c/chips/Makefile.old 2004-06-16 01:20:26.000000000 -0400
+++ drivers/i2c/chips/Makefile 2004-09-22 16:48:06.435580334 -0400
@@ -25,6 +25,7 @@
obj-$(CONFIG_SENSORS_RTC8564) += rtc8564.o
obj-$(CONFIG_SENSORS_VIA686A) += via686a.o
obj-$(CONFIG_SENSORS_W83L785TS) += w83l785ts.o
+obj-$(CONFIG_SENSORS_X1205) += x1205-rtc.o
ifeq ($(CONFIG_I2C_DEBUG_CHIP),y)
EXTRA_CFLAGS += -DDEBUG
--- arch/arm/mach-ixp4xx/ixp425-time.c.old 1969-12-31 19:00:00.000000000 -0500
+++ arch/arm/mach-ixp4xx/ixp425-time.c 2004-09-22 23:30:54.165988077 -0400
@@ -0,0 +1,87 @@
+/*
+ * arch/arm/mach-ixp425/ixp425-time.c
+ *
+ * Timer tick for IXP425 based sytems. We use OS timer1 on the CPU.
+ *
+ * Author: Peter Barry
+ * Copyright: (C) 2001 Intel Corporation.
+ *
+ * Maintainer: Deepak Saxena <dsaxena@mvista.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/time.h>
+#include <linux/init.h>
+#include <linux/smp.h>
+
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#include <linux/timex.h>
+#include <asm/hardware.h>
+
+
+extern int setup_arm_irq(int, struct irqaction *);
+
+/* IRQs are disabled before entering here from do_gettimeofday() */
+static unsigned long ixp425_gettimeoffset(void)
+{
+ u32 elapsed, usec, curr, reload;
+
+ /*
+ * We need elapsed timer ticks since last interrupt
+ *
+ * Read the CCNT value. The returned value is
+ * between -LATCH and 0, 0 corresponding to a full jiffy
+ */
+
+ reload = *IXP425_OSRT1 & ~IXP425_OST_RELOAD_MASK;
+ curr = *IXP425_OST1;
+
+ /* Corner case when rolling over as int disabled ?? */
+ elapsed = reload - curr;
+
+ /* Now convert them to usec */
+ usec = (unsigned long)(elapsed * tick) / LATCH;
+
+ return usec;
+}
+
+static void ixp425_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ /* Clear Pending Interrupt by writing '1' to it */
+ *IXP425_OSST = IXP425_OSST_TIMER_1_PEND;
+
+ do_timer(regs);
+}
+
+extern unsigned long (*gettimeoffset)(void);
+
+static struct irqaction timer_irq = {
+ name: "IXP425 Timer 1",
+};
+
+void __init setup_timer(void)
+{
+ gettimeoffset = ixp425_gettimeoffset;
+ timer_irq.handler = ixp425_timer_interrupt;
+
+ /* Clear Pending Interrupt by writing '1' to it */
+ *IXP425_OSST = IXP425_OSST_TIMER_1_PEND;
+
+ /* Setup the Timer counter value */
+ *IXP425_OSRT1 = (LATCH & ~IXP425_OST_RELOAD_MASK) | IXP425_OST_ENABLE;
+
+ /* Connect the interrupt handler and enable the interrupt */
+ setup_arm_irq(IRQ_IXP425_TIMER1, &ixp4xx_timer_irq);
+}
--- include/linux/i2c-id.h 2004-06-16 01:18:57.000000000 -0400
+++ include/linux/i2c-id.h.new 2004-09-23 00:56:30.772429217 -0400
@@ -101,7 +101,7 @@
#define I2C_DRIVERID_UDA1342 53 /* UDA1342 audio codec */
#define I2C_DRIVERID_ADV7170 54 /* video encoder */
#define I2C_DRIVERID_RADEON 55 /* I2C bus on Radeon boards */
-
+#define I2C_DRIVERID_X1205 0xF0 /* Xicor X1205 RTC */
#define I2C_DRIVERID_EXP0 0xF0 /* experimental use id's */
#define I2C_DRIVERID_EXP1 0xF1
--- archold/arm/kernel/time.c 2004-06-16 01:19:43.000000000 -0400
+++ arch/arm/kernel/time.c 2004-10-14 12:28:51.434231567 -0400
@@ -58,7 +58,7 @@ static int dummy_set_rtc(void)
* hook for setting the RTC's idea of the current time.
*/
int (*set_rtc)(void) = dummy_set_rtc;
-
+EXPORT_SYMBOL(set_rtc);
static unsigned long dummy_gettimeoffset(void)
{
return 0;
|
