[NET]: add a top-level Networking menu to *config
[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/config.h>
11 #include <linux/module.h>
12 #include <linux/init.h>
13 #include <linux/string.h>
14 #include <linux/kernel.h>
15 #include <linux/console.h>
16
17 #include <asm/bootinfo.h>
18 #include <asm/machdep.h>
19 #include <asm/blinken.h>
20 #include <asm/io.h>                               /* readb() and writeb() */
21 #include <asm/hp300hw.h>
22 #include <asm/rtc.h>
23
24 #include "ints.h"
25 #include "time.h"
26
27 unsigned long hp300_model;
28 unsigned long hp300_uart_scode = -1;
29 unsigned char ledstate;
30
31 static char s_hp330[] __initdata = "330";
32 static char s_hp340[] __initdata = "340";
33 static char s_hp345[] __initdata = "345";
34 static char s_hp360[] __initdata = "360";
35 static char s_hp370[] __initdata = "370";
36 static char s_hp375[] __initdata = "375";
37 static char s_hp380[] __initdata = "380";
38 static char s_hp385[] __initdata = "385";
39 static char s_hp400[] __initdata = "400";
40 static char s_hp425t[] __initdata = "425t";
41 static char s_hp425s[] __initdata = "425s";
42 static char s_hp425e[] __initdata = "425e";
43 static char s_hp433t[] __initdata = "433t";
44 static char s_hp433s[] __initdata = "433s";
45 static char *hp300_models[] __initdata = {
46         [HP_320]        = NULL,
47         [HP_330]        = s_hp330,
48         [HP_340]        = s_hp340,
49         [HP_345]        = s_hp345,
50         [HP_350]        = NULL,
51         [HP_360]        = s_hp360,
52         [HP_370]        = s_hp370,
53         [HP_375]        = s_hp375,
54         [HP_380]        = s_hp380,
55         [HP_385]        = s_hp385,
56         [HP_400]        = s_hp400,
57         [HP_425T]       = s_hp425t,
58         [HP_425S]       = s_hp425s,
59         [HP_425E]       = s_hp425e,
60         [HP_433T]       = s_hp433t,
61         [HP_433S]       = s_hp433s,
62 };
63
64 static char hp300_model_name[13] = "HP9000/";
65
66 extern void hp300_reset(void);
67 extern irqreturn_t (*hp300_default_handler[])(int, void *, struct pt_regs *);
68 extern int show_hp300_interrupts(struct seq_file *, void *);
69 #ifdef CONFIG_SERIAL_8250_CONSOLE
70 extern int hp300_setup_serial_console(void) __init;
71 #endif
72
73 int __init hp300_parse_bootinfo(const struct bi_record *record)
74 {
75         int unknown = 0;
76         const unsigned long *data = record->data;
77
78         switch (record->tag) {
79         case BI_HP300_MODEL:
80                 hp300_model = *data;
81                 break;
82
83         case BI_HP300_UART_SCODE:
84                 hp300_uart_scode = *data;
85                 break;
86
87         case BI_HP300_UART_ADDR:
88                 /* serial port address: ignored here */
89                 break;
90
91         default:
92                 unknown = 1;
93         }
94
95         return unknown;
96 }
97
98 #ifdef CONFIG_HEARTBEAT
99 static void hp300_pulse(int x)
100 {
101         if (x)
102                 blinken_leds(0x10, 0);
103         else
104                 blinken_leds(0, 0x10);
105 }
106 #endif
107
108 static void hp300_get_model(char *model)
109 {
110         strcpy(model, hp300_model_name);
111 }
112
113 #define RTCBASE                 0xf0420000
114 #define RTC_DATA                0x1
115 #define RTC_CMD                 0x3
116
117 #define RTC_BUSY                0x02
118 #define RTC_DATA_RDY            0x01
119
120 #define rtc_busy()              (in_8(RTCBASE + RTC_CMD) & RTC_BUSY)
121 #define rtc_data_available()    (in_8(RTCBASE + RTC_CMD) & RTC_DATA_RDY)
122 #define rtc_status()            (in_8(RTCBASE + RTC_CMD))
123 #define rtc_command(x)          out_8(RTCBASE + RTC_CMD, (x))
124 #define rtc_read_data()         (in_8(RTCBASE + RTC_DATA))
125 #define rtc_write_data(x)       out_8(RTCBASE + RTC_DATA, (x))
126
127 #define RTC_SETREG      0xe0
128 #define RTC_WRITEREG    0xc2
129 #define RTC_READREG     0xc3
130
131 #define RTC_REG_SEC2    0
132 #define RTC_REG_SEC1    1
133 #define RTC_REG_MIN2    2
134 #define RTC_REG_MIN1    3
135 #define RTC_REG_HOUR2   4
136 #define RTC_REG_HOUR1   5
137 #define RTC_REG_WDAY    6
138 #define RTC_REG_DAY2    7
139 #define RTC_REG_DAY1    8
140 #define RTC_REG_MON2    9
141 #define RTC_REG_MON1    10
142 #define RTC_REG_YEAR2   11
143 #define RTC_REG_YEAR1   12
144
145 #define RTC_HOUR1_24HMODE 0x8
146
147 #define RTC_STAT_MASK   0xf0
148 #define RTC_STAT_RDY    0x40
149
150 static inline unsigned char hp300_rtc_read(unsigned char reg)
151 {
152         unsigned char s, ret;
153         unsigned long flags;
154
155         local_irq_save(flags);
156
157         while (rtc_busy());
158         rtc_command(RTC_SETREG);
159         while (rtc_busy());
160         rtc_write_data(reg);
161         while (rtc_busy());
162         rtc_command(RTC_READREG);
163
164         do {
165                 while (!rtc_data_available());
166                 s = rtc_status();
167                 ret = rtc_read_data();
168         } while ((s & RTC_STAT_MASK) != RTC_STAT_RDY);
169
170         local_irq_restore(flags);
171
172         return ret;
173 }
174
175 static inline unsigned char hp300_rtc_write(unsigned char reg,
176                                             unsigned char val)
177 {
178         unsigned char s, ret;
179         unsigned long flags;
180
181         local_irq_save(flags);
182
183         while (rtc_busy());
184         rtc_command(RTC_SETREG);
185         while (rtc_busy());
186         rtc_write_data((val << 4) | reg);
187         while (rtc_busy());
188         rtc_command(RTC_WRITEREG);
189         while (rtc_busy());
190         rtc_command(RTC_READREG);
191
192         do {
193                 while (!rtc_data_available());
194                 s = rtc_status();
195                 ret = rtc_read_data();
196         } while ((s & RTC_STAT_MASK) != RTC_STAT_RDY);
197
198         local_irq_restore(flags);
199
200         return ret;
201 }
202
203 static int hp300_hwclk(int op, struct rtc_time *t)
204 {
205         if (!op) { /* read */
206                 t->tm_sec  = hp300_rtc_read(RTC_REG_SEC1) * 10 +
207                         hp300_rtc_read(RTC_REG_SEC2);
208                 t->tm_min  = hp300_rtc_read(RTC_REG_MIN1) * 10 +
209                         hp300_rtc_read(RTC_REG_MIN2);
210                 t->tm_hour = (hp300_rtc_read(RTC_REG_HOUR1) & 3) * 10 +
211                         hp300_rtc_read(RTC_REG_HOUR2);
212                 t->tm_wday = -1;
213                 t->tm_mday = hp300_rtc_read(RTC_REG_DAY1) * 10 +
214                         hp300_rtc_read(RTC_REG_DAY2);
215                 t->tm_mon  = hp300_rtc_read(RTC_REG_MON1) * 10 +
216                         hp300_rtc_read(RTC_REG_MON2) - 1;
217                 t->tm_year = hp300_rtc_read(RTC_REG_YEAR1) * 10 +
218                         hp300_rtc_read(RTC_REG_YEAR2);
219                 if (t->tm_year <= 69)
220                         t->tm_year += 100;
221         } else {
222                 hp300_rtc_write(RTC_REG_SEC1, t->tm_sec / 10);
223                 hp300_rtc_write(RTC_REG_SEC2, t->tm_sec % 10);
224                 hp300_rtc_write(RTC_REG_MIN1, t->tm_min / 10);
225                 hp300_rtc_write(RTC_REG_MIN2, t->tm_min % 10);
226                 hp300_rtc_write(RTC_REG_HOUR1,
227                                 ((t->tm_hour / 10) & 3) | RTC_HOUR1_24HMODE);
228                 hp300_rtc_write(RTC_REG_HOUR2, t->tm_hour % 10);
229                 hp300_rtc_write(RTC_REG_DAY1, t->tm_mday / 10);
230                 hp300_rtc_write(RTC_REG_DAY2, t->tm_mday % 10);
231                 hp300_rtc_write(RTC_REG_MON1, (t->tm_mon + 1) / 10);
232                 hp300_rtc_write(RTC_REG_MON2, (t->tm_mon + 1) % 10);
233                 if (t->tm_year >= 100)
234                         t->tm_year -= 100;
235                 hp300_rtc_write(RTC_REG_YEAR1, t->tm_year / 10);
236                 hp300_rtc_write(RTC_REG_YEAR2, t->tm_year % 10);
237         }
238
239         return 0;
240 }
241
242 static unsigned int hp300_get_ss(void)
243 {
244         return hp300_rtc_read(RTC_REG_SEC1) * 10 +
245                 hp300_rtc_read(RTC_REG_SEC2);
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_request_irq     = hp300_request_irq;
253         mach_free_irq        = hp300_free_irq;
254         mach_get_model       = hp300_get_model;
255         mach_get_irq_list    = show_hp300_interrupts;
256         mach_gettimeoffset   = hp300_gettimeoffset;
257         mach_default_handler = &hp300_default_handler;
258         mach_hwclk           = hp300_hwclk;
259         mach_get_ss          = hp300_get_ss;
260         mach_reset           = hp300_reset;
261 #ifdef CONFIG_HEARTBEAT
262         mach_heartbeat       = hp300_pulse;
263 #endif
264 #ifdef CONFIG_DUMMY_CONSOLE
265         conswitchp           = &dummy_con;
266 #endif
267         mach_max_dma_address = 0xffffffff;
268
269         if (hp300_model >= HP_330 && hp300_model <= HP_433S && hp300_model != HP_350) {
270                 printk(KERN_INFO "Detected HP9000 model %s\n", hp300_models[hp300_model-HP_320]);
271                 strcat(hp300_model_name, hp300_models[hp300_model-HP_320]);
272         }
273         else {
274                 panic("Unknown HP9000 Model");
275         }
276 #ifdef CONFIG_SERIAL_8250_CONSOLE
277         hp300_setup_serial_console();
278 #endif
279 }