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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/mips/jmr3927/common
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/mips/jmr3927/common')
-rw-r--r--arch/mips/jmr3927/common/Makefile5
-rw-r--r--arch/mips/jmr3927/common/prom.c81
-rw-r--r--arch/mips/jmr3927/common/puts.c168
-rw-r--r--arch/mips/jmr3927/common/rtc_ds1742.c165
4 files changed, 419 insertions, 0 deletions
diff --git a/arch/mips/jmr3927/common/Makefile b/arch/mips/jmr3927/common/Makefile
new file mode 100644
index 000000000000..cb09a8eede15
--- /dev/null
+++ b/arch/mips/jmr3927/common/Makefile
@@ -0,0 +1,5 @@
1#
2# Makefile for the common code of TOSHIBA JMR-TX3927 board
3#
4
5obj-y += prom.o puts.o rtc_ds1742.o
diff --git a/arch/mips/jmr3927/common/prom.c b/arch/mips/jmr3927/common/prom.c
new file mode 100644
index 000000000000..5d5838f41d23
--- /dev/null
+++ b/arch/mips/jmr3927/common/prom.c
@@ -0,0 +1,81 @@
1/*
2 * BRIEF MODULE DESCRIPTION
3 * PROM library initialisation code, assuming a version of
4 * pmon is the boot code.
5 *
6 * Copyright 2001 MontaVista Software Inc.
7 * Author: MontaVista Software, Inc.
8 * ahennessy@mvista.com
9 *
10 * Based on arch/mips/au1000/common/prom.c
11 *
12 * This file was derived from Carsten Langgaard's
13 * arch/mips/mips-boards/xx files.
14 *
15 * Carsten Langgaard, carstenl@mips.com
16 * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
17 *
18 * This program is free software; you can redistribute it and/or modify it
19 * under the terms of the GNU General Public License as published by the
20 * Free Software Foundation; either version 2 of the License, or (at your
21 * option) any later version.
22 *
23 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
26 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
29 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
30 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 *
34 * You should have received a copy of the GNU General Public License along
35 * with this program; if not, write to the Free Software Foundation, Inc.,
36 * 675 Mass Ave, Cambridge, MA 02139, USA.
37 */
38#include <linux/kernel.h>
39#include <linux/init.h>
40#include <linux/string.h>
41
42#include <asm/bootinfo.h>
43
44extern int prom_argc;
45extern char **prom_argv, **prom_envp;
46
47typedef struct
48{
49 char *name;
50/* char *val; */
51}t_env_var;
52
53
54char * __init prom_getcmdline(void)
55{
56 return &(arcs_cmdline[0]);
57}
58
59void __init prom_init_cmdline(void)
60{
61 char *cp;
62 int actr;
63
64 actr = 1; /* Always ignore argv[0] */
65
66 cp = &(arcs_cmdline[0]);
67 while(actr < prom_argc) {
68 strcpy(cp, prom_argv[actr]);
69 cp += strlen(prom_argv[actr]);
70 *cp++ = ' ';
71 actr++;
72 }
73 if (cp != &(arcs_cmdline[0])) /* get rid of trailing space */
74 --cp;
75 *cp = '\0';
76}
77
78unsigned long __init prom_free_prom_memory(void)
79{
80 return 0;
81}
diff --git a/arch/mips/jmr3927/common/puts.c b/arch/mips/jmr3927/common/puts.c
new file mode 100644
index 000000000000..1c1cad9cd078
--- /dev/null
+++ b/arch/mips/jmr3927/common/puts.c
@@ -0,0 +1,168 @@
1/*
2 *
3 * BRIEF MODULE DESCRIPTION
4 * Low level uart routines to directly access a TX[34]927 SIO.
5 *
6 * Copyright 2001 MontaVista Software Inc.
7 * Author: MontaVista Software, Inc.
8 * ahennessy@mvista.com or source@mvista.com
9 *
10 * Copyright (C) 2000-2001 Toshiba Corporation
11 *
12 * Based on arch/mips/au1000/common/puts.c
13 *
14 * This program is free software; you can redistribute it and/or modify it
15 * under the terms of the GNU General Public License as published by the
16 * Free Software Foundation; either version 2 of the License, or (at your
17 * option) any later version.
18 *
19 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
20 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
21 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
22 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
25 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 * You should have received a copy of the GNU General Public License along
31 * with this program; if not, write to the Free Software Foundation, Inc.,
32 * 675 Mass Ave, Cambridge, MA 02139, USA.
33 */
34
35#include <linux/types.h>
36#include <asm/jmr3927/txx927.h>
37#include <asm/jmr3927/tx3927.h>
38#include <asm/jmr3927/jmr3927.h>
39
40#define TIMEOUT 0xffffff
41#define SLOW_DOWN
42
43static const char digits[16] = "0123456789abcdef";
44
45#ifdef SLOW_DOWN
46#define slow_down() { int k; for (k=0; k<10000; k++); }
47#else
48#define slow_down()
49#endif
50
51void
52putch(const unsigned char c)
53{
54 int i = 0;
55
56 do {
57 slow_down();
58 i++;
59 if (i>TIMEOUT) {
60 break;
61 }
62 } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
63 tx3927_sioptr(1)->tfifo = c;
64 return;
65}
66
67unsigned char getch(void)
68{
69 int i = 0;
70 int dicr;
71 char c;
72
73 /* diable RX int. */
74 dicr = tx3927_sioptr(1)->dicr;
75 tx3927_sioptr(1)->dicr = 0;
76
77 do {
78 slow_down();
79 i++;
80 if (i>TIMEOUT) {
81 break;
82 }
83 } while (tx3927_sioptr(1)->disr & TXx927_SIDISR_UVALID)
84 ;
85 c = tx3927_sioptr(1)->rfifo;
86
87 /* clear RX int. status */
88 tx3927_sioptr(1)->disr &= ~TXx927_SIDISR_RDIS;
89 /* enable RX int. */
90 tx3927_sioptr(1)->dicr = dicr;
91
92 return c;
93}
94void
95do_jmr3927_led_set(char n)
96{
97 /* and with current leds */
98 jmr3927_led_and_set(n);
99}
100
101void
102puts(unsigned char *cp)
103{
104 int i = 0;
105
106 while (*cp) {
107 do {
108 slow_down();
109 i++;
110 if (i>TIMEOUT) {
111 break;
112 }
113 } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
114 tx3927_sioptr(1)->tfifo = *cp++;
115 }
116 putch('\r');
117 putch('\n');
118}
119
120void
121fputs(unsigned char *cp)
122{
123 int i = 0;
124
125 while (*cp) {
126 do {
127 slow_down();
128 i++;
129 if (i>TIMEOUT) {
130 break;
131 }
132 } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
133 tx3927_sioptr(1)->tfifo = *cp++;
134 }
135}
136
137
138void
139put64(uint64_t ul)
140{
141 int cnt;
142 unsigned ch;
143
144 cnt = 16; /* 16 nibbles in a 64 bit long */
145 putch('0');
146 putch('x');
147 do {
148 cnt--;
149 ch = (unsigned char)(ul >> cnt * 4) & 0x0F;
150 putch(digits[ch]);
151 } while (cnt > 0);
152}
153
154void
155put32(unsigned u)
156{
157 int cnt;
158 unsigned ch;
159
160 cnt = 8; /* 8 nibbles in a 32 bit long */
161 putch('0');
162 putch('x');
163 do {
164 cnt--;
165 ch = (unsigned char)(u >> cnt * 4) & 0x0F;
166 putch(digits[ch]);
167 } while (cnt > 0);
168}
diff --git a/arch/mips/jmr3927/common/rtc_ds1742.c b/arch/mips/jmr3927/common/rtc_ds1742.c
new file mode 100644
index 000000000000..1ae4318e1358
--- /dev/null
+++ b/arch/mips/jmr3927/common/rtc_ds1742.c
@@ -0,0 +1,165 @@
1/*
2 * Copyright 2001 MontaVista Software Inc.
3 * Author: MontaVista Software, Inc.
4 * ahennessy@mvista.com
5 *
6 * arch/mips/jmr3927/common/rtc_ds1742.c
7 * Based on arch/mips/ddb5xxx/common/rtc_ds1386.c
8 * low-level RTC hookups for s for Dallas 1742 chip.
9 *
10 * Copyright (C) 2000-2001 Toshiba Corporation
11 *
12 * This program is free software; you can redistribute it and/or modify it
13 * under the terms of the GNU General Public License as published by the
14 * Free Software Foundation; either version 2 of the License, or (at your
15 * option) any later version.
16 *
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
20 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
23 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
24 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * You should have received a copy of the GNU General Public License along
29 * with this program; if not, write to the Free Software Foundation, Inc.,
30 * 675 Mass Ave, Cambridge, MA 02139, USA.
31 */
32
33
34/*
35 * This file exports a function, rtc_ds1386_init(), which expects an
36 * uncached base address as the argument. It will set the two function
37 * pointers expected by the MIPS generic timer code.
38 */
39
40#include <linux/bcd.h>
41#include <linux/types.h>
42#include <linux/time.h>
43#include <linux/rtc.h>
44
45#include <asm/time.h>
46#include <asm/addrspace.h>
47
48#include <asm/jmr3927/ds1742rtc.h>
49#include <asm/debug.h>
50
51#define EPOCH 2000
52
53static unsigned long rtc_base;
54
55static unsigned long
56rtc_ds1742_get_time(void)
57{
58 unsigned int year, month, day, hour, minute, second;
59 unsigned int century;
60
61 CMOS_WRITE(RTC_READ, RTC_CONTROL);
62 second = BCD2BIN(CMOS_READ(RTC_SECONDS) & RTC_SECONDS_MASK);
63 minute = BCD2BIN(CMOS_READ(RTC_MINUTES));
64 hour = BCD2BIN(CMOS_READ(RTC_HOURS));
65 day = BCD2BIN(CMOS_READ(RTC_DATE));
66 month = BCD2BIN(CMOS_READ(RTC_MONTH));
67 year = BCD2BIN(CMOS_READ(RTC_YEAR));
68 century = BCD2BIN(CMOS_READ(RTC_CENTURY) & RTC_CENTURY_MASK);
69 CMOS_WRITE(0, RTC_CONTROL);
70
71 year += century * 100;
72
73 return mktime(year, month, day, hour, minute, second);
74}
75extern void to_tm(unsigned long tim, struct rtc_time * tm);
76
77static int
78rtc_ds1742_set_time(unsigned long t)
79{
80 struct rtc_time tm;
81 u8 year, month, day, hour, minute, second;
82 u8 cmos_year, cmos_month, cmos_day, cmos_hour, cmos_minute, cmos_second;
83 int cmos_century;
84
85 CMOS_WRITE(RTC_READ, RTC_CONTROL);
86 cmos_second = (u8)(CMOS_READ(RTC_SECONDS) & RTC_SECONDS_MASK);
87 cmos_minute = (u8)CMOS_READ(RTC_MINUTES);
88 cmos_hour = (u8)CMOS_READ(RTC_HOURS);
89 cmos_day = (u8)CMOS_READ(RTC_DATE);
90 cmos_month = (u8)CMOS_READ(RTC_MONTH);
91 cmos_year = (u8)CMOS_READ(RTC_YEAR);
92 cmos_century = CMOS_READ(RTC_CENTURY) & RTC_CENTURY_MASK;
93
94 CMOS_WRITE(RTC_WRITE, RTC_CONTROL);
95
96 /* convert */
97 to_tm(t, &tm);
98
99 /* check each field one by one */
100 year = BIN2BCD(tm.tm_year - EPOCH);
101 if (year != cmos_year) {
102 CMOS_WRITE(year,RTC_YEAR);
103 }
104
105 month = BIN2BCD(tm.tm_mon);
106 if (month != (cmos_month & 0x1f)) {
107 CMOS_WRITE((month & 0x1f) | (cmos_month & ~0x1f),RTC_MONTH);
108 }
109
110 day = BIN2BCD(tm.tm_mday);
111 if (day != cmos_day) {
112
113 CMOS_WRITE(day, RTC_DATE);
114 }
115
116 if (cmos_hour & 0x40) {
117 /* 12 hour format */
118 hour = 0x40;
119 if (tm.tm_hour > 12) {
120 hour |= 0x20 | (BIN2BCD(hour-12) & 0x1f);
121 } else {
122 hour |= BIN2BCD(tm.tm_hour);
123 }
124 } else {
125 /* 24 hour format */
126 hour = BIN2BCD(tm.tm_hour) & 0x3f;
127 }
128 if (hour != cmos_hour) CMOS_WRITE(hour, RTC_HOURS);
129
130 minute = BIN2BCD(tm.tm_min);
131 if (minute != cmos_minute) {
132 CMOS_WRITE(minute, RTC_MINUTES);
133 }
134
135 second = BIN2BCD(tm.tm_sec);
136 if (second != cmos_second) {
137 CMOS_WRITE(second & RTC_SECONDS_MASK,RTC_SECONDS);
138 }
139
140 /* RTC_CENTURY and RTC_CONTROL share same address... */
141 CMOS_WRITE(cmos_century, RTC_CONTROL);
142
143 return 0;
144}
145
146void
147rtc_ds1742_init(unsigned long base)
148{
149 u8 cmos_second;
150
151 /* remember the base */
152 rtc_base = base;
153 db_assert((rtc_base & 0xe0000000) == KSEG1);
154
155 /* set the function pointers */
156 rtc_get_time = rtc_ds1742_get_time;
157 rtc_set_time = rtc_ds1742_set_time;
158
159 /* clear oscillator stop bit */
160 CMOS_WRITE(RTC_READ, RTC_CONTROL);
161 cmos_second = (u8)(CMOS_READ(RTC_SECONDS) & RTC_SECONDS_MASK);
162 CMOS_WRITE(RTC_WRITE, RTC_CONTROL);
163 CMOS_WRITE(cmos_second, RTC_SECONDS); /* clear msb */
164 CMOS_WRITE(0, RTC_CONTROL);
165}
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