diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/m68k/hp300/config.c |
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/hp300/config.c')
-rw-r--r-- | arch/m68k/hp300/config.c | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/arch/m68k/hp300/config.c b/arch/m68k/hp300/config.c new file mode 100644 index 000000000000..a0b854f3f94a --- /dev/null +++ b/arch/m68k/hp300/config.c | |||
@@ -0,0 +1,279 @@ | |||
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 | } | ||