Remove obsolete #include <linux/config.h>
[linux-2.6.git] / arch / m68k / hp300 / config.c
1 /*
2  *  linux/arch/m68k/hp300/config.c
3  *
4  *  Copyright (C) 1998 Philip Blundell <philb@gnu.org>
5  *
6  *  This file contains the HP300-specific initialisation code.  It gets
7  *  called by setup.c.
8  */
9
10 #include <linux/module.h>
11 #include <linux/init.h>
12 #include <linux/string.h>
13 #include <linux/kernel.h>
14 #include <linux/console.h>
15
16 #include <asm/bootinfo.h>
17 #include <asm/machdep.h>
18 #include <asm/blinken.h>
19 #include <asm/io.h>                               /* readb() and writeb() */
20 #include <asm/hp300hw.h>
21 #include <asm/rtc.h>
22
23 #include "time.h"
24
25 unsigned long hp300_model;
26 unsigned long hp300_uart_scode = -1;
27 unsigned char ledstate;
28
29 static char s_hp330[] __initdata = "330";
30 static char s_hp340[] __initdata = "340";
31 static char s_hp345[] __initdata = "345";
32 static char s_hp360[] __initdata = "360";
33 static char s_hp370[] __initdata = "370";
34 static char s_hp375[] __initdata = "375";
35 static char s_hp380[] __initdata = "380";
36 static char s_hp385[] __initdata = "385";
37 static char s_hp400[] __initdata = "400";
38 static char s_hp425t[] __initdata = "425t";
39 static char s_hp425s[] __initdata = "425s";
40 static char s_hp425e[] __initdata = "425e";
41 static char s_hp433t[] __initdata = "433t";
42 static char s_hp433s[] __initdata = "433s";
43 static char *hp300_models[] __initdata = {
44         [HP_320]        = NULL,
45         [HP_330]        = s_hp330,
46         [HP_340]        = s_hp340,
47         [HP_345]        = s_hp345,
48         [HP_350]        = NULL,
49         [HP_360]        = s_hp360,
50         [HP_370]        = s_hp370,
51         [HP_375]        = s_hp375,
52         [HP_380]        = s_hp380,
53         [HP_385]        = s_hp385,
54         [HP_400]        = s_hp400,
55         [HP_425T]       = s_hp425t,
56         [HP_425S]       = s_hp425s,
57         [HP_425E]       = s_hp425e,
58         [HP_433T]       = s_hp433t,
59         [HP_433S]       = s_hp433s,
60 };
61
62 static char hp300_model_name[13] = "HP9000/";
63
64 extern void hp300_reset(void);
65 #ifdef CONFIG_SERIAL_8250_CONSOLE
66 extern int hp300_setup_serial_console(void) __init;
67 #endif
68
69 int __init hp300_parse_bootinfo(const struct bi_record *record)
70 {
71         int unknown = 0;
72         const unsigned long *data = record->data;
73
74         switch (record->tag) {
75         case BI_HP300_MODEL:
76                 hp300_model = *data;
77                 break;
78
79         case BI_HP300_UART_SCODE:
80                 hp300_uart_scode = *data;
81                 break;
82
83         case BI_HP300_UART_ADDR:
84                 /* serial port address: ignored here */
85                 break;
86
87         default:
88                 unknown = 1;
89         }
90
91         return unknown;
92 }
93
94 #ifdef CONFIG_HEARTBEAT
95 static void hp300_pulse(int x)
96 {
97         if (x)
98                 blinken_leds(0x10, 0);
99         else
100                 blinken_leds(0, 0x10);
101 }
102 #endif
103
104 static void hp300_get_model(char *model)
105 {
106         strcpy(model, hp300_model_name);
107 }
108
109 #define RTCBASE                 0xf0420000
110 #define RTC_DATA                0x1
111 #define RTC_CMD                 0x3
112
113 #define RTC_BUSY                0x02
114 #define RTC_DATA_RDY            0x01
115
116 #define rtc_busy()              (in_8(RTCBASE + RTC_CMD) & RTC_BUSY)
117 #define rtc_data_available()    (in_8(RTCBASE + RTC_CMD) & RTC_DATA_RDY)
118 #define rtc_status()            (in_8(RTCBASE + RTC_CMD))
119 #define rtc_command(x)          out_8(RTCBASE + RTC_CMD, (x))
120 #define rtc_read_data()         (in_8(RTCBASE + RTC_DATA))
121 #define rtc_write_data(x)       out_8(RTCBASE + RTC_DATA, (x))
122
123 #define RTC_SETREG      0xe0
124 #define RTC_WRITEREG    0xc2
125 #define RTC_READREG     0xc3
126
127 #define RTC_REG_SEC2    0
128 #define RTC_REG_SEC1    1
129 #define RTC_REG_MIN2    2
130 #define RTC_REG_MIN1    3
131 #define RTC_REG_HOUR2   4
132 #define RTC_REG_HOUR1   5
133 #define RTC_REG_WDAY    6
134 #define RTC_REG_DAY2    7
135 #define RTC_REG_DAY1    8
136 #define RTC_REG_MON2    9
137 #define RTC_REG_MON1    10
138 #define RTC_REG_YEAR2   11
139 #define RTC_REG_YEAR1   12
140
141 #define RTC_HOUR1_24HMODE 0x8
142
143 #define RTC_STAT_MASK   0xf0
144 #define RTC_STAT_RDY    0x40
145
146 static inline unsigned char hp300_rtc_read(unsigned char reg)
147 {
148         unsigned char s, ret;
149         unsigned long flags;
150
151         local_irq_save(flags);
152
153         while (rtc_busy());
154         rtc_command(RTC_SETREG);
155         while (rtc_busy());
156         rtc_write_data(reg);
157         while (rtc_busy());
158         rtc_command(RTC_READREG);
159
160         do {
161                 while (!rtc_data_available());
162                 s = rtc_status();
163                 ret = rtc_read_data();
164         } while ((s & RTC_STAT_MASK) != RTC_STAT_RDY);
165
166         local_irq_restore(flags);
167
168         return ret;
169 }
170
171 static inline unsigned char hp300_rtc_write(unsigned char reg,
172                                             unsigned char val)
173 {
174         unsigned char s, ret;
175         unsigned long flags;
176
177         local_irq_save(flags);
178
179         while (rtc_busy());
180         rtc_command(RTC_SETREG);
181         while (rtc_busy());
182         rtc_write_data((val << 4) | reg);
183         while (rtc_busy());
184         rtc_command(RTC_WRITEREG);
185         while (rtc_busy());
186         rtc_command(RTC_READREG);
187
188         do {
189                 while (!rtc_data_available());
190                 s = rtc_status();
191                 ret = rtc_read_data();
192         } while ((s & RTC_STAT_MASK) != RTC_STAT_RDY);
193
194         local_irq_restore(flags);
195
196         return ret;
197 }
198
199 static int hp300_hwclk(int op, struct rtc_time *t)
200 {
201         if (!op) { /* read */
202                 t->tm_sec  = hp300_rtc_read(RTC_REG_SEC1) * 10 +
203                         hp300_rtc_read(RTC_REG_SEC2);
204                 t->tm_min  = hp300_rtc_read(RTC_REG_MIN1) * 10 +
205                         hp300_rtc_read(RTC_REG_MIN2);
206                 t->tm_hour = (hp300_rtc_read(RTC_REG_HOUR1) & 3) * 10 +
207                         hp300_rtc_read(RTC_REG_HOUR2);
208                 t->tm_wday = -1;
209                 t->tm_mday = hp300_rtc_read(RTC_REG_DAY1) * 10 +
210                         hp300_rtc_read(RTC_REG_DAY2);
211                 t->tm_mon  = hp300_rtc_read(RTC_REG_MON1) * 10 +
212                         hp300_rtc_read(RTC_REG_MON2) - 1;
213                 t->tm_year = hp300_rtc_read(RTC_REG_YEAR1) * 10 +
214                         hp300_rtc_read(RTC_REG_YEAR2);
215                 if (t->tm_year <= 69)
216                         t->tm_year += 100;
217         } else {
218                 hp300_rtc_write(RTC_REG_SEC1, t->tm_sec / 10);
219                 hp300_rtc_write(RTC_REG_SEC2, t->tm_sec % 10);
220                 hp300_rtc_write(RTC_REG_MIN1, t->tm_min / 10);
221                 hp300_rtc_write(RTC_REG_MIN2, t->tm_min % 10);
222                 hp300_rtc_write(RTC_REG_HOUR1,
223                                 ((t->tm_hour / 10) & 3) | RTC_HOUR1_24HMODE);
224                 hp300_rtc_write(RTC_REG_HOUR2, t->tm_hour % 10);
225                 hp300_rtc_write(RTC_REG_DAY1, t->tm_mday / 10);
226                 hp300_rtc_write(RTC_REG_DAY2, t->tm_mday % 10);
227                 hp300_rtc_write(RTC_REG_MON1, (t->tm_mon + 1) / 10);
228                 hp300_rtc_write(RTC_REG_MON2, (t->tm_mon + 1) % 10);
229                 if (t->tm_year >= 100)
230                         t->tm_year -= 100;
231                 hp300_rtc_write(RTC_REG_YEAR1, t->tm_year / 10);
232                 hp300_rtc_write(RTC_REG_YEAR2, t->tm_year % 10);
233         }
234
235         return 0;
236 }
237
238 static unsigned int hp300_get_ss(void)
239 {
240         return hp300_rtc_read(RTC_REG_SEC1) * 10 +
241                 hp300_rtc_read(RTC_REG_SEC2);
242 }
243
244 static void __init hp300_init_IRQ(void)
245 {
246 }
247
248 void __init config_hp300(void)
249 {
250         mach_sched_init      = hp300_sched_init;
251         mach_init_IRQ        = hp300_init_IRQ;
252         mach_get_model       = hp300_get_model;
253         mach_gettimeoffset   = hp300_gettimeoffset;
254         mach_hwclk           = hp300_hwclk;
255         mach_get_ss          = hp300_get_ss;
256         mach_reset           = hp300_reset;
257 #ifdef CONFIG_HEARTBEAT
258         mach_heartbeat       = hp300_pulse;
259 #endif
260         mach_max_dma_address = 0xffffffff;
261
262         if (hp300_model >= HP_330 && hp300_model <= HP_433S && hp300_model != HP_350) {
263                 printk(KERN_INFO "Detected HP9000 model %s\n", hp300_models[hp300_model-HP_320]);
264                 strcat(hp300_model_name, hp300_models[hp300_model-HP_320]);
265         }
266         else {
267                 panic("Unknown HP9000 Model");
268         }
269 #ifdef CONFIG_SERIAL_8250_CONSOLE
270         hp300_setup_serial_console();
271 #endif
272 }