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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#include <linux/rtc.h>
17
18#include <asm/bootinfo.h>
19#include <asm/bootinfo-hp300.h>
20#include <asm/byteorder.h>
21#include <asm/machdep.h>
22#include <asm/blinken.h>
23#include <asm/io.h>
24#include <asm/hp300hw.h>
25
26#include "time.h"
27
28unsigned long hp300_model;
29unsigned long hp300_uart_scode = -1;
30unsigned char hp300_ledstate;
31EXPORT_SYMBOL(hp300_ledstate);
32
33static char s_hp330[] __initdata = "330";
34static char s_hp340[] __initdata = "340";
35static char s_hp345[] __initdata = "345";
36static char s_hp360[] __initdata = "360";
37static char s_hp370[] __initdata = "370";
38static char s_hp375[] __initdata = "375";
39static char s_hp380[] __initdata = "380";
40static char s_hp385[] __initdata = "385";
41static char s_hp400[] __initdata = "400";
42static char s_hp425t[] __initdata = "425t";
43static char s_hp425s[] __initdata = "425s";
44static char s_hp425e[] __initdata = "425e";
45static char s_hp433t[] __initdata = "433t";
46static char s_hp433s[] __initdata = "433s";
47static char *hp300_models[] __initdata = {
48 [HP_320] = NULL,
49 [HP_330] = s_hp330,
50 [HP_340] = s_hp340,
51 [HP_345] = s_hp345,
52 [HP_350] = NULL,
53 [HP_360] = s_hp360,
54 [HP_370] = s_hp370,
55 [HP_375] = s_hp375,
56 [HP_380] = s_hp380,
57 [HP_385] = s_hp385,
58 [HP_400] = s_hp400,
59 [HP_425T] = s_hp425t,
60 [HP_425S] = s_hp425s,
61 [HP_425E] = s_hp425e,
62 [HP_433T] = s_hp433t,
63 [HP_433S] = s_hp433s,
64};
65
66static char hp300_model_name[13] = "HP9000/";
67
68extern void hp300_reset(void);
69#ifdef CONFIG_SERIAL_8250_CONSOLE
70extern int hp300_setup_serial_console(void) __init;
71#endif
72
73int __init hp300_parse_bootinfo(const struct bi_record *record)
74{
75 int unknown = 0;
76 const void *data = record->data;
77
78 switch (be16_to_cpu(record->tag)) {
79 case BI_HP300_MODEL:
80 hp300_model = be32_to_cpup(data);
81 break;
82
83 case BI_HP300_UART_SCODE:
84 hp300_uart_scode = be32_to_cpup(data);
85 break;
86
87 case BI_HP300_UART_ADDR:
88
89 break;
90
91 default:
92 unknown = 1;
93 }
94
95 return unknown;
96}
97
98#ifdef CONFIG_HEARTBEAT
99static 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
108static 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
150static 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
175static 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
203static int hp300_hwclk(int op, struct rtc_time *t)
204{
205 if (!op) {
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
242static 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
248static void __init hp300_init_IRQ(void)
249{
250}
251
252void __init config_hp300(void)
253{
254 mach_sched_init = hp300_sched_init;
255 mach_init_IRQ = hp300_init_IRQ;
256 mach_get_model = hp300_get_model;
257 mach_hwclk = hp300_hwclk;
258 mach_get_ss = hp300_get_ss;
259 mach_reset = hp300_reset;
260#ifdef CONFIG_HEARTBEAT
261 mach_heartbeat = hp300_pulse;
262#endif
263
264 if (hp300_model >= HP_330 && hp300_model <= HP_433S &&
265 hp300_model != HP_350) {
266 pr_info("Detected HP9000 model %s\n",
267 hp300_models[hp300_model-HP_320]);
268 strcat(hp300_model_name, hp300_models[hp300_model-HP_320]);
269 } else {
270 panic("Unknown HP9000 Model");
271 }
272#ifdef CONFIG_SERIAL_8250_CONSOLE
273 hp300_setup_serial_console();
274#endif
275}
276
