1 #include <linux/init.h>
2 #include <linux/types.h>
3 #include <linux/kernel.h>
6 #include <linux/console.h>
8 #include <linux/vt_kern.h>
9 #include <linux/interrupt.h>
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>
19 #include <asm/machdep.h>
21 u_long sio01_physaddr;
22 u_long sio23_physaddr;
26 u_long cpuctrl_physaddr;
27 u_long timer_physaddr;
30 extern void dn_sched_init(irq_handler_t handler);
31 extern void dn_init_IRQ(void);
32 extern u32 dn_gettimeoffset(void);
33 extern int dn_dummy_hwclk(int, struct rtc_time *);
34 extern int dn_dummy_set_clock_mmss(unsigned long);
35 extern void dn_dummy_reset(void);
36 #ifdef CONFIG_HEARTBEAT
37 static void dn_heartbeat(int on);
39 static irqreturn_t dn_timer_int(int irq,void *);
40 static void dn_get_model(char *model);
41 static 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)"
49 int __init apollo_parse_bootinfo(const struct bi_record *record)
52 const void *data = record->data;
54 switch (be16_to_cpu(record->tag)) {
56 apollo_model = be32_to_cpup(data);
66 static void __init dn_setup_model(void)
68 pr_info("Apollo hardware found: [%s]\n",
69 apollo_models[apollo_model - APOLLO_DN3000]);
71 switch(apollo_model) {
73 panic("Unknown apollo model");
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;
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;
94 panic("Apollo model not yet supported");
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;
106 panic("Undefined apollo model");
113 int dn_serial_console_wait_key(struct console *co) {
115 while(!(sio01.srb_csrb & 1))
117 return sio01.rhrb_thrb;
120 void dn_serial_console_write (struct console *co, const char *str,unsigned int count)
124 sio01.rhrb_thrb = (unsigned char)'\r';
125 while (!(sio01.srb_csrb & 0x4))
128 sio01.rhrb_thrb = (unsigned char)*str++;
129 while (!(sio01.srb_csrb & 0x4))
134 void dn_serial_print (const char *str)
138 sio01.rhrb_thrb = (unsigned char)'\r';
139 while (!(sio01.srb_csrb & 0x4))
142 sio01.rhrb_thrb = (unsigned char)*str++;
143 while (!(sio01.srb_csrb & 0x4))
148 void __init config_apollo(void)
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;
164 mach_get_model = dn_get_model;
168 /* clear DMA translation table */
174 irqreturn_t dn_timer_int(int irq, void *dev_id)
176 irq_handler_t timer_handler = dev_id;
178 volatile unsigned char x;
180 timer_handler(irq, dev_id);
182 x = *(volatile unsigned char *)(apollo_timer + 3);
183 x = *(volatile unsigned char *)(apollo_timer + 5);
188 void dn_sched_init(irq_handler_t timer_routine)
190 /* program timer 1 */
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;
196 /* enable IRQ of PIC B */
197 *(volatile unsigned char *)(pica+1)&=(~8);
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));
206 if (request_irq(IRQ_APOLLO, dn_timer_int, 0, "time", timer_routine))
207 pr_err("Couldn't register timer interrupt\n");
210 u32 dn_gettimeoffset(void)
215 int dn_dummy_hwclk(int op, struct rtc_time *t) {
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;
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;
232 rtc->day_of_week=t->tm_wday;
233 rtc->month=t->tm_mon;
234 rtc->year=t->tm_year;
241 int dn_dummy_set_clock_mmss(unsigned long nowtime)
243 pr_info("set_clock_mmss\n");
247 void dn_dummy_reset(void) {
249 dn_serial_print("The end !\n");
255 void dn_dummy_waitbut(void) {
257 dn_serial_print("waitbut\n");
261 static void dn_get_model(char *model)
263 strcpy(model, "Apollo ");
264 if (apollo_model >= APOLLO_DN3000 && apollo_model <= APOLLO_DN4500)
265 strcat(model, apollo_models[apollo_model - APOLLO_DN3000]);
268 #ifdef CONFIG_HEARTBEAT
269 static int dn_cpuctrl=0xff00;
271 static void dn_heartbeat(int on) {