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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/m68k/mvme16x
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/m68k/mvme16x')
-rw-r--r--arch/m68k/mvme16x/16xints.c149
-rw-r--r--arch/m68k/mvme16x/Makefile5
-rw-r--r--arch/m68k/mvme16x/config.c286
-rw-r--r--arch/m68k/mvme16x/mvme16x_ksyms.c6
-rw-r--r--arch/m68k/mvme16x/rtc.c172
5 files changed, 618 insertions, 0 deletions
diff --git a/arch/m68k/mvme16x/16xints.c b/arch/m68k/mvme16x/16xints.c
new file mode 100644
index 000000000000..793ef735b59c
--- /dev/null
+++ b/arch/m68k/mvme16x/16xints.c
@@ -0,0 +1,149 @@
1/*
2 * arch/m68k/mvme16x/16xints.c
3 *
4 * Copyright (C) 1995 Richard Hirst [richard@sleepie.demon.co.uk]
5 *
6 * based on amiints.c -- Amiga Linux interrupt handling code
7 *
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file README.legal in the main directory of this archive
10 * for more details.
11 *
12 */
13
14#include <linux/types.h>
15#include <linux/kernel.h>
16#include <linux/errno.h>
17#include <linux/seq_file.h>
18
19#include <asm/system.h>
20#include <asm/ptrace.h>
21#include <asm/irq.h>
22
23static irqreturn_t mvme16x_defhand (int irq, void *dev_id, struct pt_regs *fp);
24
25/*
26 * This should ideally be 4 elements only, for speed.
27 */
28
29static struct {
30 irqreturn_t (*handler)(int, void *, struct pt_regs *);
31 unsigned long flags;
32 void *dev_id;
33 const char *devname;
34 unsigned count;
35} irq_tab[192];
36
37/*
38 * void mvme16x_init_IRQ (void)
39 *
40 * Parameters: None
41 *
42 * Returns: Nothing
43 *
44 * This function is called during kernel startup to initialize
45 * the mvme16x IRQ handling routines. Should probably ensure
46 * that the base vectors for the VMEChip2 and PCCChip2 are valid.
47 */
48
49void mvme16x_init_IRQ (void)
50{
51 int i;
52
53 for (i = 0; i < 192; i++) {
54 irq_tab[i].handler = mvme16x_defhand;
55 irq_tab[i].flags = IRQ_FLG_STD;
56 irq_tab[i].dev_id = NULL;
57 irq_tab[i].devname = NULL;
58 irq_tab[i].count = 0;
59 }
60}
61
62int mvme16x_request_irq(unsigned int irq,
63 irqreturn_t (*handler)(int, void *, struct pt_regs *),
64 unsigned long flags, const char *devname, void *dev_id)
65{
66 if (irq < 64 || irq > 255) {
67 printk("%s: Incorrect IRQ %d from %s\n", __FUNCTION__, irq, devname);
68 return -ENXIO;
69 }
70
71 if (!(irq_tab[irq-64].flags & IRQ_FLG_STD)) {
72 if (irq_tab[irq-64].flags & IRQ_FLG_LOCK) {
73 printk("%s: IRQ %d from %s is not replaceable\n",
74 __FUNCTION__, irq, irq_tab[irq-64].devname);
75 return -EBUSY;
76 }
77 if (flags & IRQ_FLG_REPLACE) {
78 printk("%s: %s can't replace IRQ %d from %s\n",
79 __FUNCTION__, devname, irq, irq_tab[irq-64].devname);
80 return -EBUSY;
81 }
82 }
83 irq_tab[irq-64].handler = handler;
84 irq_tab[irq-64].flags = flags;
85 irq_tab[irq-64].dev_id = dev_id;
86 irq_tab[irq-64].devname = devname;
87 return 0;
88}
89
90void mvme16x_free_irq(unsigned int irq, void *dev_id)
91{
92 if (irq < 64 || irq > 255) {
93 printk("%s: Incorrect IRQ %d\n", __FUNCTION__, irq);
94 return;
95 }
96
97 if (irq_tab[irq-64].dev_id != dev_id)
98 printk("%s: Removing probably wrong IRQ %d from %s\n",
99 __FUNCTION__, irq, irq_tab[irq-64].devname);
100
101 irq_tab[irq-64].handler = mvme16x_defhand;
102 irq_tab[irq-64].flags = IRQ_FLG_STD;
103 irq_tab[irq-64].dev_id = NULL;
104 irq_tab[irq-64].devname = NULL;
105}
106
107irqreturn_t mvme16x_process_int (unsigned long vec, struct pt_regs *fp)
108{
109 if (vec < 64 || vec > 255) {
110 printk ("mvme16x_process_int: Illegal vector %ld", vec);
111 return IRQ_NONE;
112 } else {
113 irq_tab[vec-64].count++;
114 irq_tab[vec-64].handler(vec, irq_tab[vec-64].dev_id, fp);
115 return IRQ_HANDLED;
116 }
117}
118
119int show_mvme16x_interrupts (struct seq_file *p, void *v)
120{
121 int i;
122
123 for (i = 0; i < 192; i++) {
124 if (irq_tab[i].count)
125 seq_printf(p, "Vec 0x%02x: %8d %s\n",
126 i+64, irq_tab[i].count,
127 irq_tab[i].devname ? irq_tab[i].devname : "free");
128 }
129 return 0;
130}
131
132
133static irqreturn_t mvme16x_defhand (int irq, void *dev_id, struct pt_regs *fp)
134{
135 printk ("Unknown interrupt 0x%02x\n", irq);
136 return IRQ_NONE;
137}
138
139
140void mvme16x_enable_irq (unsigned int irq)
141{
142}
143
144
145void mvme16x_disable_irq (unsigned int irq)
146{
147}
148
149
diff --git a/arch/m68k/mvme16x/Makefile b/arch/m68k/mvme16x/Makefile
new file mode 100644
index 000000000000..5129f56b64a3
--- /dev/null
+++ b/arch/m68k/mvme16x/Makefile
@@ -0,0 +1,5 @@
1#
2# Makefile for Linux arch/m68k/mvme16x source directory
3#
4
5obj-y := config.o 16xints.o rtc.o mvme16x_ksyms.o
diff --git a/arch/m68k/mvme16x/config.c b/arch/m68k/mvme16x/config.c
new file mode 100644
index 000000000000..26ce81c1337d
--- /dev/null
+++ b/arch/m68k/mvme16x/config.c
@@ -0,0 +1,286 @@
1/*
2 * arch/m68k/mvme16x/config.c
3 *
4 * Copyright (C) 1995 Richard Hirst [richard@sleepie.demon.co.uk]
5 *
6 * Based on:
7 *
8 * linux/amiga/config.c
9 *
10 * Copyright (C) 1993 Hamish Macdonald
11 *
12 * This file is subject to the terms and conditions of the GNU General Public
13 * License. See the file README.legal in the main directory of this archive
14 * for more details.
15 */
16
17#include <linux/types.h>
18#include <linux/kernel.h>
19#include <linux/mm.h>
20#include <linux/tty.h>
21#include <linux/console.h>
22#include <linux/linkage.h>
23#include <linux/init.h>
24#include <linux/major.h>
25#include <linux/genhd.h>
26#include <linux/rtc.h>
27#include <linux/interrupt.h>
28
29#include <asm/bootinfo.h>
30#include <asm/system.h>
31#include <asm/pgtable.h>
32#include <asm/setup.h>
33#include <asm/irq.h>
34#include <asm/traps.h>
35#include <asm/rtc.h>
36#include <asm/machdep.h>
37#include <asm/mvme16xhw.h>
38
39extern t_bdid mvme_bdid;
40
41static MK48T08ptr_t volatile rtc = (MK48T08ptr_t)MVME_RTC_BASE;
42
43extern irqreturn_t mvme16x_process_int (int level, struct pt_regs *regs);
44extern void mvme16x_init_IRQ (void);
45extern void mvme16x_free_irq (unsigned int, void *);
46extern int show_mvme16x_interrupts (struct seq_file *, void *);
47extern void mvme16x_enable_irq (unsigned int);
48extern void mvme16x_disable_irq (unsigned int);
49static void mvme16x_get_model(char *model);
50static int mvme16x_get_hardware_list(char *buffer);
51extern int mvme16x_request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id);
52extern void mvme16x_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *));
53extern unsigned long mvme16x_gettimeoffset (void);
54extern int mvme16x_hwclk (int, struct rtc_time *);
55extern int mvme16x_set_clock_mmss (unsigned long);
56extern void mvme16x_reset (void);
57extern void mvme16x_waitbut(void);
58
59int bcd2int (unsigned char b);
60
61/* Save tick handler routine pointer, will point to do_timer() in
62 * kernel/sched.c, called via mvme16x_process_int() */
63
64static irqreturn_t (*tick_handler)(int, void *, struct pt_regs *);
65
66
67unsigned short mvme16x_config;
68
69
70int mvme16x_parse_bootinfo(const struct bi_record *bi)
71{
72 if (bi->tag == BI_VME_TYPE || bi->tag == BI_VME_BRDINFO)
73 return 0;
74 else
75 return 1;
76}
77
78void mvme16x_reset(void)
79{
80 printk ("\r\n\nCalled mvme16x_reset\r\n"
81 "\r\r\r\r\r\r\r\r\r\r\r\r\r\r\r\r\r\r");
82 /* The string of returns is to delay the reset until the whole
83 * message is output. Assert reset bit in GCSR */
84 *(volatile char *)0xfff40107 = 0x80;
85}
86
87static void mvme16x_get_model(char *model)
88{
89 p_bdid p = &mvme_bdid;
90 char suf[4];
91
92 suf[1] = p->brdsuffix[0];
93 suf[2] = p->brdsuffix[1];
94 suf[3] = '\0';
95 suf[0] = suf[1] ? '-' : '\0';
96
97 sprintf(model, "Motorola MVME%x%s", p->brdno, suf);
98}
99
100
101static int mvme16x_get_hardware_list(char *buffer)
102{
103 p_bdid p = &mvme_bdid;
104 int len = 0;
105
106 if (p->brdno == 0x0162 || p->brdno == 0x0172)
107 {
108 unsigned char rev = *(unsigned char *)MVME162_VERSION_REG;
109
110 len += sprintf (buffer+len, "VMEchip2 %spresent\n",
111 rev & MVME16x_CONFIG_NO_VMECHIP2 ? "NOT " : "");
112 len += sprintf (buffer+len, "SCSI interface %spresent\n",
113 rev & MVME16x_CONFIG_NO_SCSICHIP ? "NOT " : "");
114 len += sprintf (buffer+len, "Ethernet i/f %spresent\n",
115 rev & MVME16x_CONFIG_NO_ETHERNET ? "NOT " : "");
116 }
117 else
118 *buffer = '\0';
119
120 return (len);
121}
122
123
124#define pcc2chip ((volatile u_char *)0xfff42000)
125#define PccSCCMICR 0x1d
126#define PccSCCTICR 0x1e
127#define PccSCCRICR 0x1f
128
129void __init config_mvme16x(void)
130{
131 p_bdid p = &mvme_bdid;
132 char id[40];
133
134 mach_max_dma_address = 0xffffffff;
135 mach_sched_init = mvme16x_sched_init;
136 mach_init_IRQ = mvme16x_init_IRQ;
137 mach_gettimeoffset = mvme16x_gettimeoffset;
138 mach_hwclk = mvme16x_hwclk;
139 mach_set_clock_mmss = mvme16x_set_clock_mmss;
140 mach_reset = mvme16x_reset;
141 mach_free_irq = mvme16x_free_irq;
142 mach_process_int = mvme16x_process_int;
143 mach_get_irq_list = show_mvme16x_interrupts;
144 mach_request_irq = mvme16x_request_irq;
145 enable_irq = mvme16x_enable_irq;
146 disable_irq = mvme16x_disable_irq;
147 mach_get_model = mvme16x_get_model;
148 mach_get_hardware_list = mvme16x_get_hardware_list;
149
150 /* Report board revision */
151
152 if (strncmp("BDID", p->bdid, 4))
153 {
154 printk ("\n\nBug call .BRD_ID returned garbage - giving up\n\n");
155 while (1)
156 ;
157 }
158 /* Board type is only set by newer versions of vmelilo/tftplilo */
159 if (vme_brdtype == 0)
160 vme_brdtype = p->brdno;
161
162 mvme16x_get_model(id);
163 printk ("\nBRD_ID: %s BUG %x.%x %02x/%02x/%02x\n", id, p->rev>>4,
164 p->rev&0xf, p->yr, p->mth, p->day);
165 if (p->brdno == 0x0162 || p->brdno == 0x172)
166 {
167 unsigned char rev = *(unsigned char *)MVME162_VERSION_REG;
168
169 mvme16x_config = rev | MVME16x_CONFIG_GOT_SCCA;
170
171 printk ("MVME%x Hardware status:\n", p->brdno);
172 printk (" CPU Type 68%s040\n",
173 rev & MVME16x_CONFIG_GOT_FPU ? "" : "LC");
174 printk (" CPU clock %dMHz\n",
175 rev & MVME16x_CONFIG_SPEED_32 ? 32 : 25);
176 printk (" VMEchip2 %spresent\n",
177 rev & MVME16x_CONFIG_NO_VMECHIP2 ? "NOT " : "");
178 printk (" SCSI interface %spresent\n",
179 rev & MVME16x_CONFIG_NO_SCSICHIP ? "NOT " : "");
180 printk (" Ethernet interface %spresent\n",
181 rev & MVME16x_CONFIG_NO_ETHERNET ? "NOT " : "");
182 }
183 else
184 {
185 mvme16x_config = MVME16x_CONFIG_GOT_LP | MVME16x_CONFIG_GOT_CD2401;
186
187 /* Dont allow any interrupts from the CD2401 until the interrupt */
188 /* handlers are installed */
189
190 pcc2chip[PccSCCMICR] = 0x10;
191 pcc2chip[PccSCCTICR] = 0x10;
192 pcc2chip[PccSCCRICR] = 0x10;
193 }
194}
195
196static irqreturn_t mvme16x_abort_int (int irq, void *dev_id, struct pt_regs *fp)
197{
198 p_bdid p = &mvme_bdid;
199 unsigned long *new = (unsigned long *)vectors;
200 unsigned long *old = (unsigned long *)0xffe00000;
201 volatile unsigned char uc, *ucp;
202
203 if (p->brdno == 0x0162 || p->brdno == 0x172)
204 {
205 ucp = (volatile unsigned char *)0xfff42043;
206 uc = *ucp | 8;
207 *ucp = uc;
208 }
209 else
210 {
211 *(volatile unsigned long *)0xfff40074 = 0x40000000;
212 }
213 *(new+4) = *(old+4); /* Illegal instruction */
214 *(new+9) = *(old+9); /* Trace */
215 *(new+47) = *(old+47); /* Trap #15 */
216
217 if (p->brdno == 0x0162 || p->brdno == 0x172)
218 *(new+0x5e) = *(old+0x5e); /* ABORT switch */
219 else
220 *(new+0x6e) = *(old+0x6e); /* ABORT switch */
221 return IRQ_HANDLED;
222}
223
224static irqreturn_t mvme16x_timer_int (int irq, void *dev_id, struct pt_regs *fp)
225{
226 *(volatile unsigned char *)0xfff4201b |= 8;
227 return tick_handler(irq, dev_id, fp);
228}
229
230void mvme16x_sched_init (irqreturn_t (*timer_routine)(int, void *, struct pt_regs *))
231{
232 p_bdid p = &mvme_bdid;
233 int irq;
234
235 tick_handler = timer_routine;
236 /* Using PCCchip2 or MC2 chip tick timer 1 */
237 *(volatile unsigned long *)0xfff42008 = 0;
238 *(volatile unsigned long *)0xfff42004 = 10000; /* 10ms */
239 *(volatile unsigned char *)0xfff42017 |= 3;
240 *(volatile unsigned char *)0xfff4201b = 0x16;
241 if (request_irq(MVME16x_IRQ_TIMER, mvme16x_timer_int, 0,
242 "timer", mvme16x_timer_int))
243 panic ("Couldn't register timer int");
244
245 if (p->brdno == 0x0162 || p->brdno == 0x172)
246 irq = MVME162_IRQ_ABORT;
247 else
248 irq = MVME167_IRQ_ABORT;
249 if (request_irq(irq, mvme16x_abort_int, 0,
250 "abort", mvme16x_abort_int))
251 panic ("Couldn't register abort int");
252}
253
254
255/* This is always executed with interrupts disabled. */
256unsigned long mvme16x_gettimeoffset (void)
257{
258 return (*(volatile unsigned long *)0xfff42008);
259}
260
261int bcd2int (unsigned char b)
262{
263 return ((b>>4)*10 + (b&15));
264}
265
266int mvme16x_hwclk(int op, struct rtc_time *t)
267{
268#warning check me!
269 if (!op) {
270 rtc->ctrl = RTC_READ;
271 t->tm_year = bcd2int (rtc->bcd_year);
272 t->tm_mon = bcd2int (rtc->bcd_mth);
273 t->tm_mday = bcd2int (rtc->bcd_dom);
274 t->tm_hour = bcd2int (rtc->bcd_hr);
275 t->tm_min = bcd2int (rtc->bcd_min);
276 t->tm_sec = bcd2int (rtc->bcd_sec);
277 rtc->ctrl = 0;
278 }
279 return 0;
280}
281
282int mvme16x_set_clock_mmss (unsigned long nowtime)
283{
284 return 0;
285}
286
diff --git a/arch/m68k/mvme16x/mvme16x_ksyms.c b/arch/m68k/mvme16x/mvme16x_ksyms.c
new file mode 100644
index 000000000000..4a8a3634bb47
--- /dev/null
+++ b/arch/m68k/mvme16x/mvme16x_ksyms.c
@@ -0,0 +1,6 @@
1#include <linux/module.h>
2#include <linux/types.h>
3#include <asm/ptrace.h>
4#include <asm/mvme16xhw.h>
5
6EXPORT_SYMBOL(mvme16x_config);
diff --git a/arch/m68k/mvme16x/rtc.c b/arch/m68k/mvme16x/rtc.c
new file mode 100644
index 000000000000..8a2425069088
--- /dev/null
+++ b/arch/m68k/mvme16x/rtc.c
@@ -0,0 +1,172 @@
1/*
2 * Real Time Clock interface for Linux on the MVME16x
3 *
4 * Based on the PC driver by Paul Gortmaker.
5 */
6
7#define RTC_VERSION "1.00"
8
9#include <linux/types.h>
10#include <linux/errno.h>
11#include <linux/miscdevice.h>
12#include <linux/slab.h>
13#include <linux/ioport.h>
14#include <linux/fcntl.h>
15#include <linux/init.h>
16#include <linux/poll.h>
17#include <linux/mc146818rtc.h> /* For struct rtc_time and ioctls, etc */
18#include <linux/smp_lock.h>
19#include <asm/mvme16xhw.h>
20
21#include <asm/io.h>
22#include <asm/uaccess.h>
23#include <asm/system.h>
24#include <asm/setup.h>
25
26/*
27 * We sponge a minor off of the misc major. No need slurping
28 * up another valuable major dev number for this. If you add
29 * an ioctl, make sure you don't conflict with SPARC's RTC
30 * ioctls.
31 */
32
33#define BCD2BIN(val) (((val)&15) + ((val)>>4)*10)
34#define BIN2BCD(val) ((((val)/10)<<4) + (val)%10)
35
36static const unsigned char days_in_mo[] =
37{0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
38
39static atomic_t rtc_ready = ATOMIC_INIT(1);
40
41static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
42 unsigned long arg)
43{
44 volatile MK48T08ptr_t rtc = (MK48T08ptr_t)MVME_RTC_BASE;
45 unsigned long flags;
46 struct rtc_time wtime;
47
48 switch (cmd) {
49 case RTC_RD_TIME: /* Read the time/date from RTC */
50 {
51 local_irq_save(flags);
52 /* Ensure clock and real-time-mode-register are accessible */
53 rtc->ctrl = RTC_READ;
54 memset(&wtime, 0, sizeof(struct rtc_time));
55 wtime.tm_sec = BCD2BIN(rtc->bcd_sec);
56 wtime.tm_min = BCD2BIN(rtc->bcd_min);
57 wtime.tm_hour = BCD2BIN(rtc->bcd_hr);
58 wtime.tm_mday = BCD2BIN(rtc->bcd_dom);
59 wtime.tm_mon = BCD2BIN(rtc->bcd_mth)-1;
60 wtime.tm_year = BCD2BIN(rtc->bcd_year);
61 if (wtime.tm_year < 70)
62 wtime.tm_year += 100;
63 wtime.tm_wday = BCD2BIN(rtc->bcd_dow)-1;
64 rtc->ctrl = 0;
65 local_irq_restore(flags);
66 return copy_to_user((void *)arg, &wtime, sizeof wtime) ?
67 -EFAULT : 0;
68 }
69 case RTC_SET_TIME: /* Set the RTC */
70 {
71 struct rtc_time rtc_tm;
72 unsigned char mon, day, hrs, min, sec, leap_yr;
73 unsigned int yrs;
74
75 if (!capable(CAP_SYS_ADMIN))
76 return -EACCES;
77
78 if (copy_from_user(&rtc_tm, (struct rtc_time*)arg,
79 sizeof(struct rtc_time)))
80 return -EFAULT;
81
82 yrs = rtc_tm.tm_year;
83 if (yrs < 1900)
84 yrs += 1900;
85 mon = rtc_tm.tm_mon + 1; /* tm_mon starts at zero */
86 day = rtc_tm.tm_mday;
87 hrs = rtc_tm.tm_hour;
88 min = rtc_tm.tm_min;
89 sec = rtc_tm.tm_sec;
90
91 leap_yr = ((!(yrs % 4) && (yrs % 100)) || !(yrs % 400));
92
93 if ((mon > 12) || (day == 0))
94 return -EINVAL;
95
96 if (day > (days_in_mo[mon] + ((mon == 2) && leap_yr)))
97 return -EINVAL;
98
99 if ((hrs >= 24) || (min >= 60) || (sec >= 60))
100 return -EINVAL;
101
102 if (yrs >= 2070)
103 return -EINVAL;
104
105 local_irq_save(flags);
106 rtc->ctrl = RTC_WRITE;
107
108 rtc->bcd_sec = BIN2BCD(sec);
109 rtc->bcd_min = BIN2BCD(min);
110 rtc->bcd_hr = BIN2BCD(hrs);
111 rtc->bcd_dom = BIN2BCD(day);
112 rtc->bcd_mth = BIN2BCD(mon);
113 rtc->bcd_year = BIN2BCD(yrs%100);
114
115 rtc->ctrl = 0;
116 local_irq_restore(flags);
117 return 0;
118 }
119 default:
120 return -EINVAL;
121 }
122}
123
124/*
125 * We enforce only one user at a time here with the open/close.
126 * Also clear the previous interrupt data on an open, and clean
127 * up things on a close.
128 */
129
130static int rtc_open(struct inode *inode, struct file *file)
131{
132 if( !atomic_dec_and_test(&rtc_ready) )
133 {
134 atomic_inc( &rtc_ready );
135 return -EBUSY;
136 }
137
138 return 0;
139}
140
141static int rtc_release(struct inode *inode, struct file *file)
142{
143 atomic_inc( &rtc_ready );
144 return 0;
145}
146
147/*
148 * The various file operations we support.
149 */
150
151static struct file_operations rtc_fops = {
152 .ioctl = rtc_ioctl,
153 .open = rtc_open,
154 .release = rtc_release,
155};
156
157static struct miscdevice rtc_dev=
158{
159 .minor = RTC_MINOR,
160 .name = "rtc",
161 .fops = &rtc_fops
162};
163
164int __init rtc_MK48T08_init(void)
165{
166 if (!MACH_IS_MVME16x)
167 return -ENODEV;
168
169 printk(KERN_INFO "MK48T08 Real Time Clock Driver v%s\n", RTC_VERSION);
170 return misc_register(&rtc_dev);
171}
172