1#include <linux/init.h>
2#include <linux/types.h>
3#include <linux/kernel.h>
4#include <linux/mm.h>
5#include <linux/tty.h>
6#include <linux/console.h>
7#include <linux/rtc.h>
8#include <linux/vt_kern.h>
9#include <linux/interrupt.h>
10
11#include <asm/setup.h>
12#include <asm/bootinfo.h>
13#include <asm/bootinfo-apollo.h>
14#include <asm/byteorder.h>
15#include <asm/pgtable.h>
16#include <asm/apollohw.h>
17#include <asm/irq.h>
18#include <asm/rtc.h>
19#include <asm/machdep.h>
20
21u_long sio01_physaddr;
22u_long sio23_physaddr;
23u_long rtc_physaddr;
24u_long pica_physaddr;
25u_long picb_physaddr;
26u_long cpuctrl_physaddr;
27u_long timer_physaddr;
28u_long apollo_model;
29
30extern void dn_sched_init(irq_handler_t handler);
31extern void dn_init_IRQ(void);
32extern u32 dn_gettimeoffset(void);
33extern int dn_dummy_hwclk(int, struct rtc_time *);
34extern int dn_dummy_set_clock_mmss(unsigned long);
35extern void dn_dummy_reset(void);
36#ifdef CONFIG_HEARTBEAT
37static void dn_heartbeat(int on);
38#endif
39static irqreturn_t dn_timer_int(int irq,void *);
40static void dn_get_model(char *model);
41static const char *apollo_models[] = {
42 [APOLLO_DN3000-APOLLO_DN3000] = "DN3000 (Otter)",
43 [APOLLO_DN3010-APOLLO_DN3000] = "DN3010 (Otter)",
44 [APOLLO_DN3500-APOLLO_DN3000] = "DN3500 (Cougar II)",
45 [APOLLO_DN4000-APOLLO_DN3000] = "DN4000 (Mink)",
46 [APOLLO_DN4500-APOLLO_DN3000] = "DN4500 (Roadrunner)"
47};
48
49int __init apollo_parse_bootinfo(const struct bi_record *record)
50{
51 int unknown = 0;
52 const void *data = record->data;
53
54 switch (be16_to_cpu(record->tag)) {
55 case BI_APOLLO_MODEL:
56 apollo_model = be32_to_cpup(data);
57 break;
58
59 default:
60 unknown=1;
61 }
62
63 return unknown;
64}
65
66static void __init dn_setup_model(void)
67{
68 pr_info("Apollo hardware found: [%s]\n",
69 apollo_models[apollo_model - APOLLO_DN3000]);
70
71 switch(apollo_model) {
72 case APOLLO_UNKNOWN:
73 panic("Unknown apollo model");
74 break;
75 case APOLLO_DN3000:
76 case APOLLO_DN3010:
77 sio01_physaddr=SAU8_SIO01_PHYSADDR;
78 rtc_physaddr=SAU8_RTC_PHYSADDR;
79 pica_physaddr=SAU8_PICA;
80 picb_physaddr=SAU8_PICB;
81 cpuctrl_physaddr=SAU8_CPUCTRL;
82 timer_physaddr=SAU8_TIMER;
83 break;
84 case APOLLO_DN4000:
85 sio01_physaddr=SAU7_SIO01_PHYSADDR;
86 sio23_physaddr=SAU7_SIO23_PHYSADDR;
87 rtc_physaddr=SAU7_RTC_PHYSADDR;
88 pica_physaddr=SAU7_PICA;
89 picb_physaddr=SAU7_PICB;
90 cpuctrl_physaddr=SAU7_CPUCTRL;
91 timer_physaddr=SAU7_TIMER;
92 break;
93 case APOLLO_DN4500:
94 panic("Apollo model not yet supported");
95 break;
96 case APOLLO_DN3500:
97 sio01_physaddr=SAU7_SIO01_PHYSADDR;
98 sio23_physaddr=SAU7_SIO23_PHYSADDR;
99 rtc_physaddr=SAU7_RTC_PHYSADDR;
100 pica_physaddr=SAU7_PICA;
101 picb_physaddr=SAU7_PICB;
102 cpuctrl_physaddr=SAU7_CPUCTRL;
103 timer_physaddr=SAU7_TIMER;
104 break;
105 default:
106 panic("Undefined apollo model");
107 break;
108 }
109
110
111}
112
113int dn_serial_console_wait_key(struct console *co) {
114
115 while(!(sio01.srb_csrb & 1))
116 barrier();
117 return sio01.rhrb_thrb;
118}
119
120void dn_serial_console_write (struct console *co, const char *str,unsigned int count)
121{
122 while(count--) {
123 if (*str == '\n') {
124 sio01.rhrb_thrb = (unsigned char)'\r';
125 while (!(sio01.srb_csrb & 0x4))
126 ;
127 }
128 sio01.rhrb_thrb = (unsigned char)*str++;
129 while (!(sio01.srb_csrb & 0x4))
130 ;
131 }
132}
133
134void dn_serial_print (const char *str)
135{
136 while (*str) {
137 if (*str == '\n') {
138 sio01.rhrb_thrb = (unsigned char)'\r';
139 while (!(sio01.srb_csrb & 0x4))
140 ;
141 }
142 sio01.rhrb_thrb = (unsigned char)*str++;
143 while (!(sio01.srb_csrb & 0x4))
144 ;
145 }
146}
147
148void __init config_apollo(void)
149{
150 int i;
151
152 dn_setup_model();
153
154 mach_sched_init=dn_sched_init;
155 mach_init_IRQ=dn_init_IRQ;
156 arch_gettimeoffset = dn_gettimeoffset;
157 mach_max_dma_address = 0xffffffff;
158 mach_hwclk = dn_dummy_hwclk;
159 mach_set_clock_mmss = dn_dummy_set_clock_mmss;
160 mach_reset = dn_dummy_reset;
161#ifdef CONFIG_HEARTBEAT
162 mach_heartbeat = dn_heartbeat;
163#endif
164 mach_get_model = dn_get_model;
165
166 cpuctrl=0xaa00;
167
168
169 for(i=0;i<0x400;i++)
170 addr_xlat_map[i]=0;
171
172}
173
174irqreturn_t dn_timer_int(int irq, void *dev_id)
175{
176 irq_handler_t timer_handler = dev_id;
177
178 volatile unsigned char x;
179
180 timer_handler(irq, dev_id);
181
182 x = *(volatile unsigned char *)(apollo_timer + 3);
183 x = *(volatile unsigned char *)(apollo_timer + 5);
184
185 return IRQ_HANDLED;
186}
187
188void dn_sched_init(irq_handler_t timer_routine)
189{
190
191 *(volatile unsigned char *)(apollo_timer + 3) = 0x01;
192 *(volatile unsigned char *)(apollo_timer + 1) = 0x40;
193 *(volatile unsigned char *)(apollo_timer + 5) = 0x09;
194 *(volatile unsigned char *)(apollo_timer + 7) = 0xc4;
195
196
197 *(volatile unsigned char *)(pica+1)&=(~8);
198
199#if 0
200 pr_info("*(0x10803) %02x\n",
201 *(volatile unsigned char *)(apollo_timer + 0x3));
202 pr_info("*(0x10803) %02x\n",
203 *(volatile unsigned char *)(apollo_timer + 0x3));
204#endif
205
206 if (request_irq(IRQ_APOLLO, dn_timer_int, 0, "time", timer_routine))
207 pr_err("Couldn't register timer interrupt\n");
208}
209
210u32 dn_gettimeoffset(void)
211{
212 return 0xdeadbeef;
213}
214
215int dn_dummy_hwclk(int op, struct rtc_time *t) {
216
217
218 if(!op) {
219 t->tm_sec=rtc->second;
220 t->tm_min=rtc->minute;
221 t->tm_hour=rtc->hours;
222 t->tm_mday=rtc->day_of_month;
223 t->tm_wday=rtc->day_of_week;
224 t->tm_mon=rtc->month;
225 t->tm_year=rtc->year;
226 } else {
227 rtc->second=t->tm_sec;
228 rtc->minute=t->tm_min;
229 rtc->hours=t->tm_hour;
230 rtc->day_of_month=t->tm_mday;
231 if(t->tm_wday!=-1)
232 rtc->day_of_week=t->tm_wday;
233 rtc->month=t->tm_mon;
234 rtc->year=t->tm_year;
235 }
236
237 return 0;
238
239}
240
241int dn_dummy_set_clock_mmss(unsigned long nowtime)
242{
243 pr_info("set_clock_mmss\n");
244 return 0;
245}
246
247void dn_dummy_reset(void) {
248
249 dn_serial_print("The end !\n");
250
251 for(;;);
252
253}
254
255void dn_dummy_waitbut(void) {
256
257 dn_serial_print("waitbut\n");
258
259}
260
261static void dn_get_model(char *model)
262{
263 strcpy(model, "Apollo ");
264 if (apollo_model >= APOLLO_DN3000 && apollo_model <= APOLLO_DN4500)
265 strcat(model, apollo_models[apollo_model - APOLLO_DN3000]);
266}
267
268#ifdef CONFIG_HEARTBEAT
269static int dn_cpuctrl=0xff00;
270
271static void dn_heartbeat(int on) {
272
273 if(on) {
274 dn_cpuctrl&=~0x100;
275 cpuctrl=dn_cpuctrl;
276 }
277 else {
278 dn_cpuctrl&=~0x100;
279 dn_cpuctrl|=0x100;
280 cpuctrl=dn_cpuctrl;
281 }
282}
283#endif
284
285
